СИСТЕМА КОНТРОЛЯ УПРАВЛЯЮЩЕГО КЛАПАНА И СПОСОБ ОБНАРУЖЕНИЯ ИЗМЕНЕНИЯ В МЕХАНИЧЕСКОЙ ЦЕЛОСТНОСТИ ВАЛА КЛАПАНА

FIELD: monitoring and measuring equipment.SUBSTANCE: invention relates to a control valve control system. Control valve control system comprises at least one sensor connected to valve shaft, detecting change in mechanical integrity of valve shaft and measuring voltage in localized zone of valve shaft. There is a device for obtaining data on this change in mechanical integrity of the valve shaft, which provides efficient servicing of the valve shaft. Said sensor can be a sound-radiating sensor, an active ultrasonic sensor or a sensor based on fiber-optic Bragg gratings (FBG).EFFECT: control valve control system and method for detection of change in mechanical integrity of valve shaft.8 cl, 4 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 736 903 C2 (51) МПК F16K 37/00 (2006.01) G01B 11/16 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК F16K 37/00 (2020.08); G01B 11/16 (2020.08) (21)(22) Заявка: 2017100323, 17.07.2012 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): ФИШЕР КОНТРОЛЗ ИНТЕРНЕШНЕЛ ЛЛС (US) Дата регистрации: 23.11.2020 21.07.2011 US 61/510,252 Номер и дата приоритета первоначальной заявки, из которой данная заявка выделена: 2014103714 21.07.2011 (56) Список документов, цитированных в отчете о поиске: EP 315391 B1, 13.04.1994. WO 1998052501 A1, 26.11.1998. DE 19947129 A1, 05.04.2001. EP 637713 A1, 05.05.1998. EP 390224 A3, 03.10.1990. RU 2213328 C2, 27.09.2003. (43) Дата публикации заявки: 20.12.2018 Бюл. № 35 (54) СИСТЕМА КОНТРОЛЯ УПРАВЛЯЮЩЕГО КЛАПАНА И СПОСОБ ОБНАРУЖЕНИЯ ИЗМЕНЕНИЯ В МЕХАНИЧЕСКОЙ ЦЕЛОСТНОСТИ ВАЛА КЛАПАНА (57) Реферат: Изобретение относится к системе контроля об этом изменении в механической целостности управляющего клапана. Система контроля вала клапана, что обеспечивает эффективное управляющего клапана содержит по меньшей проведение обслуживания вала клапана. мере один датчик, соединенный с валом клапана, Указанный датчик может быть звукоизлучающим ...

СРЕДСТВО ОБНАРУЖЕНИЯ ДЕФЕКТОВ АКУСТИЧЕСКИМ АНАЛИЗОМ ТУРБОМАШИНЫ ЛЕТАТЕЛЬНОГО АППАРАТА

FIELD: physics, acoustics. SUBSTANCE: group of inventions relates to a method and a device for detecting defects by acoustic analysis of aircraft turbomachine. Device comprises the mobile unit comprising targeted means for collection and processing of turbomachine acoustic signals, means for damage report transfer, server comprising means for receiving and means for storing of damage report. To detect defects by acoustic analysis of aircraft turbomachine, the acoustic signals are collected from aircraft turbomachine and processed to create, transfer to the server and store a damage report. EFFECT: provision of acoustic analysis of aircraft turbomachine without dismantling the turbomachine. 10 cl, 1 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 617 242 C2 (51) МПК G05B 23/02 (2006.01) B64F 5/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ФОРМУЛА (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ 2014138489, 22.02.2013 (24) Дата начала отсчета срока действия патента: 22.02.2013 (72) Автор(ы): ЛАКАЙ Жером Анри Ноэль (FR) (73) Патентообладатель(и): СНЕКМА (FR) Дата регистрации: (56) Список документов, цитированных в отчете о поиске: US 6529620 B2, 04.03.2003. US Приоритет(ы): (30) Конвенционный приоритет: 24.02.2012 FR 1251713 (45) Опубликовано: 24.04.2017 Бюл. № 12 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 24.09.2014 (86) Заявка PCT: FR 2013/050362 (22.02.2013) (87) Публикация заявки PCT: 2 6 1 7 2 4 2 (43) Дата публикации заявки: 10.04.2016 Бюл. № 10 7363111 B2, 22.04.2008. US 20020059831 A1, 23.05.2002. US 20060283190 A1, 21.12.2006. RU 2320987 C1, 27.03.2008. RU 2379645 C2, 20.01.2010. R U 24.04.2017 2 6 1 7 2 4 2 R U Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, строение 3, ООО "Юридическая фирма Городисский и Партнеры" (54) СРЕДСТВО ОБНАРУЖЕНИЯ ДЕФЕКТОВ АКУСТИЧЕСКИМ АНАЛИЗОМ ТУРБОМАШИНЫ ЛЕТАТЕЛЬНОГО АППАРАТА (57) Формула изобретения 1. Устройство (DISP) для обнаружения дефектов акустическим анализом ...

СПОСОБ И УСТРОЙСТВО ДЛЯ УЛЬТРАЗВУКОВОГО ТЕСТИРОВАНИЯ ОБЪЕКТА

... 1. Способ ультразвукового тестирования объекта, заключающийся в том, что в по меньшей мере один момент тестирования ультразвуковой сигнал (S1, S2) тестирования передают в объект (2), по истечении заданного периода (Δ t1, Δt2) проверки, измеренного с момента тестирования, в объект (2) передают ультразвуковой сигнал (S1', S2') проверки, возможный эхосигнал от сигнала (S1, S2) тестирования принимают от объекта (2) в заданный первый момент измерения, при этом принятый эхосигнал принимают как эхосигнал (E1, E2) сигнала (S1, S2) тестирования, только если эхосигнал (Е1', E2') ультразвукового сигнала (S1', S2') проверки принят в заданный второй момент измерения. 2. Способ по п.1, отличающийся тем, что указанный возможный эхосигнал принимают как эхосигнал (Е1, E2) сигнала (S1, S2) тестирования, только если разность между первым и вторым моментами измерения, по существу, равна заданному периоду (Δt1, Δt2) проверки. 3. Способ по п.1, отличающийся тем, что сигнал (S1, S2) тестирования и каждый соответствующий ...

СИСТЕМА КОНТРОЛЯ УПРАВЛЯЮЩЕГО КЛАПАНА

... 1. Система контроля управляющего клапана, содержащая:по меньшей мере один датчик, соединенный со штоком клапана или валом клапана для обнаружения изменения в механической целостности этого штока клапана или вала клапана; иустройство для получения данных об этом изменении в механической целостности указанного штока клапана или вала клапана.2. Система по п.1, в которой указанный по меньшей мере один датчик представляет собой звукоизлучающий датчик или активный ультразвуковой датчик.3. Система по п.2, в которой звукоизлучающий датчик обнаруживает образование трещин в указанном штоке клапана или вале клапана вследствие изменения в записи акустического сигнала.4. Система по п.2, в которой звукоизлучающий датчик прикреплен к одному концу вала клапана или штока клапана.5. Система по п.1, в которой указанный по меньшей мере один датчик представляет собой пьезоэлектрический волновой активный датчик или пьезокерамический (PZT) датчик.6. Система по п.5, в которой полное сопротивление пьезоэлектрического ...

Verfahren zum Unterscheiden zwischen verschmutzten und gebrochenen Ultraschall betriebenen Klingen

GLEICHZEITIGES BESTIMMEN VON MEHRPHASIGEN DURCHFLUSSMENGEN UND KONZENTRATIONEN

Method and apparatus for automatically calibrating measures of acoustic impedance of cement and other materials behind casing

The invention relates to a method and apparatus for in situ, continuous, automatic, and real-time acoustic impedance calibration of a transducer 22 in an acoustic logging system. By taking the frequency characteristics of the ultrasonic transducer which are present in the internal casing reflection and convolving them with the frequency characteristics of the casing 12 being logged, a theoretical model is created with a theoretical acoustic impedance fluid producing a theoretical free pipe signal at each measure point. The measured signal is then compared to the theoretical free pipe signal thereby yielding a calibrated acoustic impedance value for each measure point.

Ultrasonic logging methods and apparatus for automatically calibrating measures of acoustic impedance of cement and other materials behind casing

Assessing the quality of rivets by evaluating the complex valued electrical impedance of a piezoelectric ultrasonic transducer

A rivet 10 is inspected by sending an ultrasonic continuous wave to the rivet from a transducer probe 1. The probe 1 comprises a piezoelectric transducer element and a buffer rod (waveguide) which is acoustically coupled to the rivet head. A reference piezoelectric transducer element may also be provided. The rivet quality is evaluated by monitoring 13 variations in the complex valued electrical impedance or admittance of the transducer, which may be measured using a bridge circuit 12. The complex valued impedance, being a phasor in the impedance plane, can be rotated 14 and displayed at a two dimensional display 15 and a signal corresponding to one component of the phasor presented in the display can be fed to a threshold detector 16.. The method may be used to inspect self piercing rivets which join metal sheets on vehicles or aircraft.

Ultrasonic imaging in wells or tubulars

Method and apparatus for echo-peak detection for circumferential borehole image logging

Signals from an acoustic transducer used in a borehole include overlapping, ringing reflections from the casing walls, voids in the cement and the formation. By using the Hubert transform, an envelope of the signals is determined and individual echos are detected by using a Gauss-Laplace operator.

Method and apparatus for echo-peak detection for circumferential borehole image logging

Method and apparatus for hydraulic isolation determination.

SIMULTANEOUS DETERMINING OF POLYPHASE FLOW RATES AND CONCENTRATIONS

Method and apparatus for ultrasonic testing of an object

Electroacoustic imaging methods and apparatus

SYSTEM AND METHOD FOR INSPECTING AN INDUSTRIAL FURNACE OR THE LIKE

A system for inspecting a refractory furnace having an outer shell and an inner refractory brick lining includes a stress wave generator for generating stress waves that propagate through the outer shell and the refractory brick lining. A stress wave sensor senses reflected stress waves returning to the outer shell. A processing unit in communication with the stress wave sensor processes output generated by the stress wave sensor to generate data representing the condition of the refractory brick lining. In this manner, the location and geometry of anomalies within the refractory brick lining can be determined without requiring the refractory furnace to be shut down.

SYSTEM AND METHOD FOR INSPECTING AN INDUSTRIAL FURNACE OR THE LIKE

A system for inspecting a refractory furnace having an outer shell and an inner refractory brick lining includes a stress wave generator for generating stress waves that propagate through the outer shell and the refractory brick lining. A stress wave sensor senses reflected stress waves returning to the outer shell. A processing unit in communication with the stress wave sensor processes output generated by the stress wave sensor to generate data representing the condition of the refractory brick lining. In this manner, the location and geometry of anomalies within the refractory brick lining can be determined without requiring the refractory furnace to be shut down.

METHOD FOR DIFFERENTIATING BETWEEN BURDENED AND CRACKED ULTRASONICALLY TUNED BLADES

A method for differentiating between ultrasonically tuned blades which are broken or cracked, and blades which are gunked by evaluating measured impedance differences when a system is first excited with a low displacement signal and then with a high displacement signal. The method is performed irrespective of the age of the hand piece/blade, the temperature or specific type of hand piece or blade, and is not affected by self healing effects of slightly cracked blades. Moreover, the method facilitates the quantifiable determination of the amount of gunk on the blade. Absolute impedance measurements of the transducer or blade are unnecessary. Instead, only relative impedance measurements are required, which greatly simplifies the measuring criteria. This provides a way to measure the amount of gunk accumulation, and thereby a way to calculate/estimate the amount of heat generated at the sheath, as well as a way to calculate/estimate the amounts of degradation to the load curve of the ultrasonic ...

ICE DETECTOR

An ice detector 110 includes a pair of electrodes 122, 124 connected by a pair of leads 116, 118 to a control unit 120 which measures the impedance (or other parameters) between leads 116 and 118 to thereby sense and detect ice or other contaminants formed on top thereof. Electrodes 122, 124 are integrated into patch 134 and are comprised of a top layer 142 of conductive resin, a middle layer 144 of conductive cloth and a bottom layer 146 of conductive resin.

METHOD FOR DETERMINING THE AMOUNT OF DEFORMATION INDUCED IN A MATERIAL BY A COMPRESSIVE FORCE

W.E. 56,610 A nondestructive method for determining the amount of deformation induced in a material by a compressive force is provided that comprises the steps of uniformly dispersing a quantity of a particulate tagging substance in the material whose presence and distribution is detectable by a form of radiant energy, applying a compressive to the material, and then determining the extent to which the material is compressively deformed by transmitting the appropriate radiant energy through the material to determine changes in the density and distribution of the particulate tagging substance. The method may advantageously be applied to determine the extent to which a granular material such as asphalt concrete has been compacted over a roadbed, as well as to determine strain and wear patterns in gaskets formed from elastic materials.

PROBE IMPEDANCEMETRIQUE ULTRASONIC WAVEGUIDES SOLID OR SOLID-LIQUID SQUIRTED

Locating interfaces in vertically-layered materials and determining concentrations in mixed materials utilizing acoustic impedance measurements

Measurement of the relative and actual value of acoustic characteristic impedances of an unknown substance, location of the interfaces of vertically-layered materials, and the determination of the concentration of a first material mixed in a second material. A highly damped ultrasonic pulse is transmitted into one side of a reference plate, such as a tank wall, where the other side of the reference plate is in physical contact with the medium to be measured. The amplitude of a return signal, which is the reflection of the transmitted pulse from the interface between the other side of the reference plate and the medium, is measured. The amplitude value indicates the acoustic characteristic impedance of the substance relative to that of the reference plate or relative to that of other tested materials. Discontinuities in amplitude with repeated measurements for various heights indicate the location of interfaces in vertically-layered materials. Standardization techniques permit the relative ...

Method for making cement impedance measurements with characterized transducer

Methods for characterizing acoustic transducers and using a characterized acoustic transducer for measuring cement impedance of a cased well are disclosed. The method for characterizing the acoustic transducer generally comprises: arranging the acoustic transducer a predetermined distance from a calibration target of known thickness; transmitting a pulse from the acoustic transducer through a known medium and toward the calibration target and measuring a return signal received therefrom; and fitting, via minimization, a return signal calculation generated by a model of the return signal which has a limited number of parameters, to the received return signal to determine a value for at least one of the parameters and thereby characterize the transducer. The preferred parameters for characterization are the transducer radius and stand-off, such that the transducer may be characterized as having an effective stand-off and an effective radius. The method for measuring cement impedance behind ...

Method for making cement impedance measurements with characterized transducer

Methods for characterizing acoustic transducers and using a characterized acoustic transducer for measuring cement impedance of a cased well are disclosed. The method for characterizing the acoustic transducer generally comprises: arranging the acoustic transducer a predetermined distance from a calibration target of known thickness; transmitting a pulse from the acoustic transducer through a known medium and toward the calibration target and measuring a return signal received therefrom; and fitting, via minimization, a return signal calculation generated by a model of the return signal which has a limited number of parameters, to the received return signal to determine a value for at least one of the parameters and thereby characterize the transducer. The preferred parameters for characterization are the transducer radius and stand-off, such that the transducer may be characterized as having an effective stand-off and an effective radius. The method for measuring cement impedance behind the casing in a well utilizes the method for characterizing the transducer, where the calibration target is preferbly of the same radius and thickness as the casing of the well. Then, downhole, a pulse is transmitted toward the casing in the well and the return signal is measured. Using the effective stand-off and effective radius previously determined as fixed values, the model of the return signal, which utilizes reflective coefficients which, inter alia, are a function of the cement impedance, is fit to the actual return signal to determine an indication of the cement impedance.

Nanoindenter ultrasonic probe tip

A multimode ultrasonic probe tip and transducer integrated into a micro tool, such as a nano indenter or a nano indenter interfaced with a Scanning Probe Microscope (SPM) is described. The tip component may be utilized to determine mechanical properties or characteristics of a sample, including for example, complex elastic modulus, hardness, friction coefficient, and strain and stress at nanometer scales and high frequencies. The tip component is configured to operate at multi-resonant frequencies providing sub-nanometer vertical resolution. The tip component may be quasi-statistically calibrated and contact mechanics constitutive equations may be utilized to derive mechanical properties of a sample. Contact mechanical impedance and acoustic impedance may also be compared.

FOREIGN MATTER DETECTING METHOD BY VERTICAL ULTRASONIC INSPECTION

PURPOSE: To easily and surely detect a foreign matter existing in the inside of an examination specimen by ultrasonic inspection. CONSTITUTION: A medium 3 having acoustic impedance Z3 is closely stuck to the bottom face of an examination material 1 wherein the impedance Z3 satisfies the following; Z1Z2, an Z1>Z3 when Z1 Подробнее

Регулируемый совмещённый преобразователь импедансного дефектоскопа

FIELD: defectoscopy.SUBSTANCE: using: for acoustic impedance method of non-destructive testing of multilayer materials and products. Summary of the Invention is that the adjustable combined converter of the impedance flaw detector includes a body of a controllable combined converter, a contact element in contact with a controlled object, a radiating piezoelectric element with a balancing mass, and a receiving piezoelectric element. In addition, the body of the combined converter is equipped with a rod made of two parts – the upper and lower parts, rigidly connected by two elastic blocks consisting of flexible curved plates, with interlayer installed between them, connected with the possibility of adjustment by an adjusting screw with a nut. And also the upper part of the rod and the lower part of the rod are rigidly connected to the radiating and receiving piezoelements. Case of the combined converter is made with two side windows serving for quick replacement of both individual flexible curved plates and elastic blocks.EFFECT: increase the sensitivity of the process of flaw detection of composite materials and provide the ability to quickly replace both individual flexible curved plates and elastic blocks, as well as providing the ability to control the tightening of the adjusting screw with the nut.1 cl, 2 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 671 334 C1 (51) МПК G01N 29/09 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК G01N 29/09 (2006.01) (21)(22) Заявка: 2017139822, 15.11.2017 (24) Дата начала отсчета срока действия патента: Дата регистрации: Приоритет(ы): (22) Дата подачи заявки: 15.11.2017 (56) Список документов, цитированных в отчете о поиске: SU 1226296 A1, 23.04.1986. SU (45) Опубликовано: 30.10.2018 Бюл. № 31 2 6 7 1 3 3 4 R U 868571 A1, 30.09.1981. SU 1594416 A1, 23.09.1990. SU 1252725 A1, 23.08.1986. US 4365209 A, 21.12.1982. US 2016027994 A1, 28.01.2016. (54) Регулируемый совмещённый ...

Method and assembly for inspecting a partially cured repair patch prior to installation

METHOD AND ASSEMBLY FOR INSPECTING A PARTIALLY CURED REPAIR PATCH PRIOR TO INSTALLATION A method and assembly (20) are provided in order to inspect a partially cured repair patch (12) prior to installation. For example, an assembly (20) for inspecting a repair patch 12) is provided that includes a partially cured repair patch (12) comprised of a composite material. The assembly (20) also includes an acoustic facilitation layer (22) disposed proximate of the surface of the repair patch (12) through which ultrasonic signals will be introduced. The assembly further includes a vacuum bag (24) surrounding the repair patch (12) and the acoustic facilitation layer (22). The acoustic facilitation layer (22) has an acoustic impedance that is closer to the respective acoustic impedances of the repair patch (12) and the vacuum bag (24) than the acoustic impedance of air is to the respective acoustic impedances of the repair patch (12) and the vacuum bag (24). i) ...

Acoustic impact particle size measurement

Apparatus features a signal processor or processing module configured at least to: receive signaling containing information about acoustic emissions resulting from particles impacting a solid sensor element configured in a process pipe having a process fluid flowing therein, including a slurry; and determine particle sizes of solids in the process fluid, based at least partly on the signaling received. The signal processor module may also be configured to provide corresponding signaling containing information about the particle sizes of solids in the process fluid.

METHOD FOR DIFFERENTIATING BETWEEN BURDENED AND CRACKED ULTRASONICALLY TUNED BLADES

A method for differentiating between ultrasonically tuned blades which are broken or cracked, and blades which are gunked by evaluating measured impedance differences when a system is first excited with a low displacement signal and then with a high displacement signal. The method is performed irrespective of the age of the hand piece/blade, the temperature or specific type of hand piece or blade, and is not affected by self healing effects of slightly cracked blades. Moreover, the method facilitates the quantifiable determination of the amount of gunk on the blade. Absolute impedance measurements of the transducer or blade are unnecessary. Instead, only relative impedance measurements are required, which greatly simplifies the measuring criteria. This provides a way to measure the amount of gunk accumulation, and thereby a way to calculate/estimate the amount of heat generated at the sheath, as well as a way to calculate/estimate the amounts of degradation to the load curve of the ultrasonic ...

ULTRASONIC LOGGING METHODS AND APPARATUS FOR AUTOMATICALLY CALIBRATING MEASURES OF ACOUSTIC IMPEDANCE OF CEMENT AND OTHER MATERIALS BEHIND CASING

Methods and apparatus for in situ, continuous, automatic, and real-time acoustic impedance calibration of a transducer in an acoustic logging system . By taking the frequency characteristics of the ultrasonic transducer which are present in the internal casing reflection and convolving them with the frequency characteristics of the casing being logged, a theoretical model is created with a theoretical acoustic impedance fluid producing a theoretical free pipe signal at each measure point. The measured signal is then compared to the theoretical free pipe signal thereby yielding a calibrated acoustic impedance value for at each measure point. The only model employed is in the theoretical calculation of spectrum characteristics of free pipe.

FIBRE OPTIC SENSING

... 81784918 ABSTRACT This application relates to fibre optic sensing which can provide information about the environment in which the fibre optic is deployed, in particular the mechanical impedance. An interrogator is used to interrogate an optical fibre which is coupled to a first element which is responsive to electromagnetic fields. In use a varying, e.g. alternating, electric current, is applied so as to induce a varying force on said first element. The optical radiation backscattered from within the optical fibre is analysed to determine a variation corresponding with said electric current applied. The first element may be a first conductor and the varying current may be supplied to the first conductor, or to a second conductor. Alternatively the first element could be a magnetic element. By applying a variable force to the first element, and hence the optical fibre, the characteristics of the environment can be determined. Date Recue/Date Received 2020-07-31 ...

Method and device of diagnosing damage of structural object

Determination of geological formation porosity - describes equations and circuit for finding porosity from acoustic impedance

método e aparelho para caracterizar um revestimento instalado em um furo de poço em uma formação de terra e meio legível por computador

METHOD OF USING DUAL-PORT MEASUREMENT SYSTEM TO MEASURE ACOUSTIC IMPEDANCE

A method of using a dual-port measurement system to measure acoustic impedance is used to measure an acoustic impedance Z of a tested object. The tested object includes an input end and an output end opposite to the input end. The dual-port measurement system comprises a first impedance tube and a second impedance tube. The first impedance tube includes a first inlet where a plane wave of a sound source is input, and a first outlet connected with the input end. The second impedance tube includes a second inlet connected with the output end, and a second outlet where the plane wave is output. The method uses the dual-port measurement system and a two-boundary method to obtain the acoustic impedances Z, whereby the dual-port measurement system is conveniently applied to various fields, such as the design of earphones, muffler tubes, sound absorption materials, and artificial ears. 2. The method of using a dual-port measurement system to measure acoustic impedance according to claim 1 , wherein the tested object includes a sound source.3. The method of using a dual-port measurement system to measure acoustic impedance according to claim 1 , wherein in Step 5 claim 1 , Equation (8) is further expressed as{'br': None, 'i': Zx=y', 'Z=C', 'C', '+εI, 'sub': yx', 'xx, 'sup': '−1', ', whereby (),\u2003\u2003Equation (9){'sub': yx', 'xx, 'wherein Cis a cross-correlation matrix of y and x, Can autocorrelation matrix of x, c a regularization coefficient, and I a unit matrix.'}4. The method of using a dual-port measurement system to measure acoustic impedance according to claim 1 , wherein the input end and the output end of the tested object are symmetric.5. The method of using a dual-port measurement system to measure acoustic impedance according to claim 1 , wherein the input end and the output end of the tested object are asymmetric. The present invention relates to a measurement method, particularly to a method of using a dual-port measurement system to measure acoustic ...

СИСТЕМА КОНТРОЛЯ УПРАВЛЯЮЩЕГО КЛАПАНА

FIELD: machine building.SUBSTANCE: invention relates to control valves servicing, namely, to control valve shaft and stem fatigue detection system. Control valve control system includes piezoelectric wave active sensor or piezo-ceramic (PZT) sensor, connected to valve shaft for detecting change in mechanical integrity of this valve shaft. Said sensor has complex impedance. Control valve control system also comprises device for obtaining data on changes in said valve shaft mechanical integrity. At that, said sensor complex impedance is compared with valve shaft complex impedance in order to detect change in said valve shaft mechanical integrity. Invention also describes methods of detecting change in control valve shaft with rotary shaft mechanical integrity.EFFECT: group of inventions is aimed at increasing service efficiency and control valve longer service life.14 cl, 4 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 609 818 C2 (51) МПК F16K 37/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ФОРМУЛА (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ 2014103714, 17.07.2012 (24) Дата начала отсчета срока действия патента: 17.07.2012 (72) Автор(ы): КАРДЕР Кеннет Х. (US), АНДЕРСОН Шон У. (US) 06.02.2017 Приоритет(ы): (30) Конвенционный приоритет: (56) Список документов, цитированных в отчете о поиске: EP 0315391 A2, 10.05.1989;DE 21.07.2011 US 61/510,252 19947129 A1, 05.04.2001;EP 637713 A1, 08.02.1995 ;SU 1167393 A1, 15.07.1985. (45) Опубликовано: 06.02.2017 Бюл. № 4 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 21.02.2014 (86) Заявка PCT: US 2012/047039 (17.07.2012) (87) Публикация заявки PCT: 2 6 0 9 8 1 8 (43) Дата публикации заявки: 27.08.2015 Бюл. № 24 R U (73) Патентообладатель(и): ФИШЕР КОНТРОЛЗ ИНТЕРНЕШНЕЛ ЛЛС (US) Дата регистрации: 2 6 0 9 8 1 8 R U C 2 C 2 WO 2013/012849 (24.01.2013) Адрес для переписки: 197101, Санкт-Петербург, а/я 128, "АРСПАТЕНТ", М.В. Хмара (54) СИСТЕМА КОНТРОЛЯ УПРАВЛЯЮЩЕГО КЛАПАНА (57) ...

Signal processing system and method

A signal processing system and method for determining the location of a feature 124 such as a pit or crack within a pipe 120 uses deconvolution of measured acoustic waves to determine changes in acoustic impedance. The method comprises resolving a plurality of measured resultant pressure waveforms associated with the pipe into associated waveforms which are a function of the plurality of measured pressure waveforms measured at respective positions; the plurality of measured pressure waveforms representing measurements by a plurality of acoustic detection devices 110, 112 positioned at the respective positions of a launch body 106 for exciting the pipe using an excitation waveform from excitation source 104; and deriving an impulse response or transfer function of the pipe 120 from at least a pair of associated waveforms. The method does not require prior knowledge of the excitation waveform.

Test piece simulator for non destructive test equipment calibration

Fibre optic sensing

PROCEDURE AND EQUIPMENT FOR THE HYDRAULIC ISOLATION REGULATION

PROCEDURE AND DEVICE FOR TESTING AN OBJECT WITH ULTRASONIC

Method and assembly for inspecting a partially cured repair patch prior to installation

METHOD AND ASSEMBLY FOR INSPECTING A PARTIALLY CURED REPAIR PATCH PRIOR TO INSTALLATION A method and assembly (20) are provided in order to inspect a partially cured repair patch (12) prior to installation. For example, an assembly (20) for inspecting a repair patch 12) is provided that includes a partially cured repair patch (12) comprised of a composite material. The assembly (20) also includes an acoustic facilitation layer (22) disposed proximate of the surface of the repair patch (12) through which ultrasonic signals will be introduced. The assembly further includes a vacuum bag (24) surrounding the repair patch (12) and the acoustic facilitation layer (22). The acoustic facilitation layer (22) has an acoustic impedance that is closer to the respective acoustic impedances of the repair patch (12) and the vacuum bag (24) than the acoustic impedance of air is to the respective acoustic impedances of the repair patch (12) and the vacuum bag (24). Ki L..

Nanoparticles sequentially exposed to low intensity acoustic waves for medical or cosmetic applications

This invention relates to nanoparticles for use in an acoustic wave medical treatment of a body part of an individual, wherein nanoparticles are administered to the body part of the individual and the acoustic wave is applied on the body part, wherein the acoustic wave is sequentially applied on the body part, and/or, the nanoparticles are magnetosomes.

NANOPARTICLES SEQUENTIALLY EXPOSED TO LOW INTENSITY ACOUSTIC WAVES FOR MEDICAL OR COSMETIC APPLICATIONS

This invention relates to nanoparticles for use in an acoustic wave medical treatment of a body part of an individual, wherein nanoparticles are administered to the body part of the individual and the acoustic wave is applied on the body part, wherein the acoustic wave is sequentially applied on the body part, and/or, the nanoparticles are magnetosomes.

DEVICE FOR DETECTING ANOMALIES IN AN AIRCRAFT TURBINE ENGINE BY ACOUSTIC ANALYSIS

L'invention concerne un dispositif (DISP) de détection d'anomalies par analyse acoustique d'une turbomachine (TURBO) d'aéronef (AERO), caractérisé en ce qu'il est non embarqué et qu'il comporte: Au moins un module (MOD) mobile comportant: des moyens d'acquisition (MDAC) directionnels de signaux acoustiques de la turbomachine (TURBO); des moyens de traitement (MDTT) desdits signaux, adaptés pour générer un rapport d'endommagement (RAP_END); des moyens de transmission (MDTM) dudit rapport d'endommagement (RAP_END); un serveur (SERV) apte à échanger des données avec le au moins un module (MOD), ledit serveur (SERV) comportant: des moyens de réception (MDR) du rapport d'endommagement (RAP_END); des moyens de stockage (MDS) adaptés pour stocker ledit rapport d'endommagement (RAP_END).

ACOUSTIC IMPACT PARTICLE SIZE MEASUREMENT

Apparatus features a signal processor or processing module configured at least to: receive signaling containing information about acoustic emissions resulting from particles impacting a solid sensor element configured in a process pipe having a process fluid flowing therein, including a slurry; and determine particle sizes of solids in the process fluid, based at least partly on the signaling received. The signal processor module may also be configured to provide corresponding signaling containing information about the particle sizes of solids in the process fluid.

ULTRASONIC AUTHENTICATING BUTTON

Embodiments of an ultrasonic button and methods for using the ultrasonic button are disclosed. In one embodiment, an ultrasonic button may include an ultrasonic transmitter configured to transmit an ultrasonic wave, a piezoelectric receiver layer configured to receive a reflected wave of the ultrasonic wave, a platen layer configured to protect the ultrasonic transmitter and the piezoelectric receiver layer, a first matching layer configured to match an acoustic impedance of the platen layer with an acoustic impedance of ridges of a finger, and an ultrasonic sensor array configured to detect the finger using the reflected wave.

VALIDATION OF CASED-HOLE ACOUSTIC TOOLS

In some implementations, a method for validating an acoustic bond-log tool includes having a test fixture including a wellbore casing emulating tubing. An outer tubing emulates a well formation and forms a perimeter of an annulus surrounding the wellbore casing emulating tubing. The wellbore casing tubing is configured with a stepped outer surface emulating different wellbore casing sidewall thicknesses. A dividing structure is coupled in the axial direction to the outer surface of the wellbore casing emulating tubing and to the inner surface of the outer tubing to radially subdivide the annulus into a plurality of hermetically sealable sample sections. Each sample section contains a sample of a material having a known acoustic impedance. The acoustic bond-log tool is validated by comparing a bond-log tool measurement of the acoustic impedance of each sample in a particular sample section to the known acoustic impedance of the sample.

CONTROL VALVE MONITORING SYSTEM

A control valve monitoring system is disclosed. The control valve monitoring system includes at least one sensor connected to one of a valve stem or valve shaft, and the at least one sensor detects a change in mechanical integrity of one of the valve stem or valve shaft. A device for providing data regarding the change in mechanical integrity of one of the valve stem or valve shaft is provided, allowing maintenance of the valve shaft or valve stem to be conducted in an efficient manner.

ULTRASONIC METHOD AND APPARATUS FOR DETECTING AND IDENTIFYING CONTAMINATION SUCH AS ICE ON THE SURFACE OF A STRUCTURE

... 14 A method and an apparatus for detecting and identifying a contaminant, such as ice, on the surface of a structure, such as a wing, are disclosed. The apparatus has a probe having a delay block with an interface apt to be placed flush with the surface of the structure and two faces at the same angle of inclination relative to the interface and having transmission and reception transducers each oriented perpendicularly to one of the faces. The block has an acoustic impedance lying in the range of 0.7 to 3 x 106 kg/m2.s. It further has an energization and analysis unit for applying an electrical energization pulse to the transmission transducer and comparing the amplitude and the phase of the echo from the interface with a reference echo corresponding to no contamination.

APPARATUS FOR CHECKING ROBOT JOINT AND METHOD THEREOF

The present invention relates to an apparatus for checking a robot joint and a method thereof. According to the present invention, the apparatus for checking a robot joint and a method for checking wear of a robot joint comprises: a motion sound database which stores motion sound generated when a robot performs each of multiple motions in an operation of the robot, including multiple motions; a storage part which stores a noise database storing noise sound corresponding to the multiple motions; a sound sensor which includes at least one microphone installed opposite to the joint; and a control part which concludes that the joint is worn when a difference greater than a predetermined critical value occurs by comparing input sound received by the microphone for each motion of the robot and motion sound stored to correspond to the microphone and the motions. COPYRIGHT KIPO 2017 (130) Storage part (140) Control part (150) Audio part (160) Display part ...

method and apparatus for characterizing a coating installed in a wellbore in the formation of ground

ELECTROACOUSTIC IMAGING METHODS AND APPARATUS

Methods are disclosed for obtaining electroacoustic images of specimens. One method includes applying an acoustic wave to a specimen and forming an image based on an electroacoustically induced electric field or voltage. In another method, an electric field or voltage is applied to a specimen and an electroacoustically induced acoustic wave is measured to form an image. Apparatus suitable for obtaining electroacoustic images are disclosed as well as methods for distinguishing image contributions from the electroacoustic, thermoacoustic, and Hall effects.

СПОСОБ И УСТРОЙСТВО ДЛЯ ОЦЕНКИ ЦЕЛОСТНОСТИ ОБОРУДОВАНИЯ, УПРАВЛЯЮЩЕГО ТЕХНОЛОГИЧЕСКИМ ПРОЦЕССОМ

FIELD: machine building. SUBSTANCE: group of inventions relates to equipment housing integrity diagnostics facilities. Disclosed is method, according to which in process plant first valve body impedance measurements sequence is recieved in response to first frequency, storing said first impedance measurements sequence, receiving second valve body impedance measurements sequence in response to second frequency, storing said second impedance measurements sequence, comparing first and second impedance measurements sequencies and generated indication on valve body integrity loss, if first impedance measurements sequence is offset from second impedance measurements sequence. EFFECT: technical result is increasing in accuracy of equipment housing loss of integrity determining. 23 cl, 3 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 611 985 C2 (51) МПК G05B 19/042 (2006.01) G05B 23/02 (2006.01) G01N 29/00 (2006.01) G01R 31/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ФОРМУЛА (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ 2013151381, 18.04.2012 (24) Дата начала отсчета срока действия патента: 18.04.2012 (72) Автор(ы): АНДЕРСОН Шон Уилльям (US) (73) Патентообладатель(и): ФИШЕР КОНТРОЛЗ ИНТЕРНЕШНЕЛ ЛЛС (US) Дата регистрации: (56) Список документов, цитированных в отчете о поиске: US 2005/0011278 A1, 20.01.2005. US Приоритет(ы): (30) Конвенционный приоритет: 26.04.2011 US 61/479,224 (45) Опубликовано: 01.03.2017 Бюл. № 7 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 26.11.2013 (86) Заявка PCT: US 2012/034073 (18.04.2012) (87) Публикация заявки PCT: 2 6 1 1 9 8 5 (43) Дата публикации заявки: 10.06.2015 Бюл. № 16 4,528,497 A, 09.07.1985. US 2008/0319692 A1, 25.12.2008. RU 2 210 065 C2, 10.08.2003. SU 1255996 A1, 07.09.1986. R U 01.03.2017 2 6 1 1 9 8 5 R U C 2 C 2 WO 2012/148755 (01.11.2012) Адрес для переписки: 197101, Санкт-Петербург, а/я 128, "АРСПАТЕНТ", М.В. Хмара (54) СПОСОБ И УСТРОЙСТВО ДЛЯ ОЦЕНКИ ЦЕЛОСТНОСТИ ...

СПОСОБ И УСТРОЙСТВО ДЛЯ УЛЬТРАЗВУКОВОГО ТЕСТИРОВАНИЯ ОБЪЕКТА

FIELD: instrument making. ^ SUBSTANCE: proposed invention is intended for acoustic resting of an object. The essence of the invention consists in that, at least, during one moment of testing ultrasound signal (S1, S2) is sent into test object (2). Note here that after expiration of test preset period (öt1, öt2), measured from each moment of testing and ultrasound signal (S1', S2') into aforesaid object (2). Possible echo-signal from signal (S1, S2) is received from object (2) at appropriate fist moment of measurement. Note here that aforesaid possible echo-signal is taken to be echo-signal (E1, E2) of signal (S1, S2) only provided that echo-signal (E1', E2') of ultrasound signal (S1', S2') is received at appropriate second moment of testing. ^ EFFECT: higher accuracy of testing. ^ 18 cl, 5 dwg (19) РОССИЙСКАЯ ФЕДЕРАЦИЯ RU (11) 2 362 993 (13) C2 (51) МПК G01N 29/024 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21), (22) Заявка: 2006117323/28, 19.10.2004 (24) Дата начала отсчета срока действия патента: 19.10.2004 (73) Патентообладатель(и): СОНИМЕКС Б.В. (NL) R U (30) Конвенционный приоритет: 22.10.2003 NL 1024593 (72) Автор(ы): БЕСТЕБРЕРТЬЕ Питер (NL) (43) Дата публикации заявки: 27.11.2007 2 3 6 2 9 9 3 (45) Опубликовано: 27.07.2009 Бюл. № 21 2 3 6 2 9 9 3 (85) Дата перевода заявки PCT на национальную фазу: 22.05.2006 C 2 C 2 (56) Список документов, цитированных в отчете о поиске: US 6055862 A, 02.05.2000. US 5020371 A, 04.06.1991. RU 2184374 C1, 27.06.2002. RU 2184372 C1, 27.06.2002. SU 922621 A1, 23.04.1982. SU 1756192 A1, 23.08.1992. US 4044594 A, 30.08.1977. US 4689995 A, 01.09.1987. (86) Заявка PCT: NL 2004/000738 (19.10.2004) (87) Публикация PCT: WO 2005/038448 (28.04.2005) Адрес для переписки: 129090, Москва, ул. Б.Спасская, 25, стр.3, ООО "Юридическая фирма Городисский и Партнеры", пат.пов. Ю.Д.Кузнецову, рег.№ 595 R U (54) СПОСОБ И УСТРОЙСТВО ДЛЯ ...

СПОСОБ ОПРЕДЕЛЕНИЯ РИСКА РАЗВИТИЯ ПРЕСАРКОПЕНИИ

Изобретение относится к медицине, в частности к гериатрии, может быть использовано для определения риска развития пресаркопении. Проводят биоимпедансный анализ на аппарате Multiscan ВС - OXI определение мышечной массы с помощью анализа состава тела, определение показателей сердечного выброса и ударного объема сердца с помощью анализа пульсовой волны, определение индекса массы тела, рассчитанного по формуле: масса тела, кг, деленная на рост в квадрате, м2, и определение объема талии с использованием сантиметровой ленты. Далее рассчитывают риск развития пресаркопении: Y=-0,109318-0,015226⋅ХОТ+1,795193⋅ХИМТ-3,027⋅ХСВ-0,009565⋅ХУОС-0,873699⋅ХММ%, где ХОТ - объем талии, см; ХИМТ - индекс массы тела, кг/ м2; ХСВ - сердечный выброс, л/мин; ХУОС - ударный объем сердца, мл; ХММ - мышечная масса, %, Затем полученное значение подставляют в формулу: где е=2,7182818284. Если значение «р» больше 5%, то риск развития пресаркопении высокий, если значение «р» меньше 5%, то риск развития пресаркопении низкий ...

СПОСОБ И УСТРОЙСТВО ДЛЯ ОЦЕНКИ ЦЕЛОСТНОСТИ ОБОРУДОВАНИЯ, УПРАВЛЯЮЩЕГО ТЕХНОЛОГИЧЕСКИМ ПРОЦЕССОМ

... 1. Способ, реализованный с использованием системы обнаружения и определения местоположения неисправностей (FDI), для указания на потерю целостности корпуса периферийного устройства, содержащий этапы, на которыхпринимают посредством системы обнаружения и определения местоположения неисправностей первую последовательность измерений от периферийного устройства,сохраняют первую последовательность измерений,принимают в системе обнаружения и определения местоположения неисправностей вторую последовательность измерений от периферийного устройства,сохраняют вторую последовательность результатов измерений,сравнивают первую последовательность измерений и вторую последовательность измерений игенерируют указание, если первая последовательность измерений отклонена от второй последовательности измерений.2. Способ по п.1, согласно которому первая последовательность измерений и вторая последовательность измерений содержат измерения импеданса.3. Способ по п.1, согласно которому первая последовательность ...

Verfahren zum Bestimmen einer Mehrschicht-Dünnfilm-Abscheidung auf einem piezoelektrischen Kristall

Ein Verfahren zum genauen Berechnen der Dicke von abgeschiedenen Dünnfilmschichten auf einem piezoelektrischen Kristallrohling, bei dem ungleiche Materialien verwendet werden können, wodurch Bestimmungen bei verschiedenen Anwendungen ermöglicht werden, bei denen exotische Materialien verwendet werden. Außerdem kann die spezifische Schallimpedanz (oder das äquivalente z-Verhältnis) eines unbekannten abgeschiedenen Materials bestimmt werden. Mit der genauen analytischen Lösung werden Dickenfehler nahezu eliminiert, wenn mehrere Schichten aus unterschiedlichen Materialien sequenziell auf demselben Monitor-Quarzkristall abgeschieden werden.

GLEICHZEITIGES BESTIMMEN VON MEHRPHASIGEN DURCHFLUSSMENGEN UND KONZENTRATIONEN

Improvements in or relating to the measurement of acoustic impedance

Measurement of the complex acoustic impedance of a sample 1 of material comprises immersing the sample in a fluid medium 7, producing in the medium an acoustic field e.g. by an annular transducer 8, measuring at a surface of the sample using a pressure transducer 2 a pressure Po at the medium due to the acoustic field, measuring the displacement Xo of the medium at the surface by means of a laser interferometer arrangement 10-16, producing electrical signals proportional to Po and Xo respectively and processing the signals to solve a predetermined equation. The fluid in which the measurement is carried out should be a liquid such as oil or water. The acoustic field is produced by the annular transducer 8 and may be maintained at a required level by an automatic gain feedback loop 19-23. ...

Buried object detection system

Method for differentiating between burdened and cracked ultrasonically tuned blades

Detection of delamination of rubber covers from metal substrates

METHOD AND APPARATUS FOR CHARACTERIZING PROCESS CONTROL EQUIPMENT INTEGRITY

In a process plant, a first series of impedance measurements from a valve body are received. The first series of impedance measurements are stored. A second series of impedance measurements from the valve body are received. The second series of impedance measurements from the valve body are stored. The first series and second series of impedance measurements are compared. An indication of loss of integrity of the valve body is generated if the first series of impedance measurements deviates from the second series of impedance measurements.

CONTROL VALVE MONITORING SYSTEM

A control valve monitoring system is disclosed. The control valve monitoring system includes at least one sensor connected to one of a valve stem or valve shaft, and the at least one sensor detects a change in mechanical integrity of one of the valve stem or valve shaft. A device for providing data regarding the change in mechanical integrity of one of the valve stem or valve shaft is provided, allowing maintenance of the valve shaft or valve stem to be conducted in an efficient manner.

METHOD FOR NON-DESTRUCTIVE DETECTION FOR FOREIGN MATTER IN MEDIUM USING WAVEFORM OF ULTRASONIC WAVE

This invention intends to provide a method for inspecting an inner state of an object by determining whether or not any foreign matter is generated inside the object material without being affected by any outside state of the object. This method comprises irradiating waveform of ultrasonic wave to an object whose inner state is desired to be inspected from outside, extracting waveform of a reflected wave traveling inside the object, detecting a difference of acoustic impedance of the foreign matter from the waveform of the reflected wave by extracting a deflection of the waveform and detecting for presence/absence of the foreign matter inside the object or presence/absence of the foreign matter and a quantity of the foreign matter.

Process and device with ultrasounds of detection and identification of contaminant such as the white frost with lasurface of a structure

Le procédé et le dispositif permettent de détecter la présence de fluide de dégivrage, d'eau, de neige fondante ou de givre à la surface d'une structure. Le dispositif comprend une sonde (10) ayant un bloc de retard (16) présentant une interface affleurant la surface de la structure et des transducteurs (20, 22) d'émission et de réception. Le bloc a une impédance acoustique comprise entre 2, 7 et 3. Des moyens (12) d'excitation et d'analyse permettent d'envoyer une impulsion électrique au tranducteur d'émission (20) et de comparer l'amplitude et la phase de l'écho d'interface avec un écho de référence correspondant à l'absence de contaminant.

body of revolution of teeth based rotate-body defect analysis apparatus and method thereof

Patent RU2017100323A3

ВУ“? 2017100323°” АЗ Дата публикации: 29.05.2020 Форма № 18 ИЗИМ-2011 Федеральная служба по интеллектуальной собственности Федеральное государственное бюджетное учреждение 5 «Федеральный институт промышленной собственности» (ФИПС) ОТЧЕТ О ПОИСКЕ 1. . ИДЕНТИФИКАЦИЯ ЗАЯВКИ Регистрационный номер Дата подачи 2017100323/12(000559) 17.07.2012 Приоритет установлен по дате: [ ] подачи заявки [ ] поступления дополнительных материалов от к ранее поданной заявке № [Х] приоритета 05.02.2014 по первоначальной заявке № 2014103714 из которой данная заявка выделена [ ] подачи первоначальной заявки № из которой данная заявка выделена [ ] подачи ранее поданной заявки № [Х] подачи первой(ых) заявки(ок) в государстве-участнике Парижской конвенции (31) Номер первой(ых) заявки(ок) (32) Дата подачи первой(ых) заявки(ок) (33) Код страны 1. 61/510,252 21.07.2011 05 Название изобретения (полезной модели): [Х] - как заявлено; [ ] - уточненное (см. Примечания) СИСТЕМА КОНТРОЛЯ УПРАВЛЯЮЩЕГО КЛАПАНА И СПОСОБ ОБНАРУЖЕНИЯ ИЗМЕНЕНИЯ В МЕХАНИЧЕСКОЙ ЦЕЛОСТНОСТИ ВАЛА КЛАПАНА Заявитель: ФИШЕР КОНТРОЛЗ ИНТЕРНЕШНЕЛ ЛЛС, 05 2. ЕДИНСТВО ИЗОБРЕТЕНИЯ [Х] соблюдено [ ] не соблюдено. Пояснения: см. Примечания 3. ФОРМУЛА ИЗОБРЕТЕНИЯ: [Х] приняты во внимание все пункты см. п см. Примечания [ ] приняты во внимание следующие пункты: [ | принята во внимание измененная формула изобретения (см. Примечания) 4. КЛАССИФИКАЦИЯ ОБЪЕКТА ИЗОБРЕТЕНИЯ (ПОЛЕЗНОЙ МОДЕЛИ) (Указываются индексы МПК и индикатор текущей версии) Е1бК 37/00 (2006.01) 5. ОБЛАСТЬ ПОИСКА 5.1 Проверенный минимум документации РСТ (указывается индексами МПК) Е16К 37/00 , ©01В11/16, ©01В11/32 5.2 Другая проверенная документация в той мере, в какой она включена в поисковые подборки: 5.3 Электронные базы данных, использованные при поиске (название базы, и если, возможно, поисковые термины): Езрасепеё Рабеагсв, КОРТО, ОРТО 6. ДОКУМЕНТЫ, ОТНОСЯЩИЕСЯ К ПРЕДМЕТУ ПОИСКА Кате- Наименование документа с указанием (где необходимо) частей, Относится к Г ория* ...

СПОСОБ И УСТРОЙСТВО ДЛЯ ПРОВЕРКИ ЦЕННЫХ ДОКУМЕНТОВ НА НАЛИЧИЕ НЕРЕГУЛЯРНОСТЕЙ

А 2016109942 ко РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) 11) жа < КО °’ 20161 (50) МПК 007) 708 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2016109942, 11.09.2014 (71) Заявитель(и): ГИЗЕКЕ УНД ДЕВРИЕНТ ГМБХ (ОЕ) Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): 13.09.2013 ОЕ 102013015224.0 ФОЙЛЬНЕР Иоганнес (ОЕ), ДОМКЕ Ян (ОЕ) (43) Дата публикации заявки: 18.10.2017 Бюл. № 29 (85) Дата начала рассмотрения заявки РСТ на национальной фазе: 13.04.2016 (86) Заявка РСТ: ЕР 2014/002465 (11.09.2014) (87) Публикация заявки РСТ: УГО 2015/036120 (19.03.2015) Адрес для переписки: 105082, Москва, Спартаковский пер., 2, стр. 1, секция 1, этаж 3, ЕВРОМАРКПАТ (54) СПОСОБ И УСТРОЙСТВО ДЛЯ ПРОВЕРКИ ЦЕННЫХ ДОКУМЕНТОВ НА НАЛИЧИЕ НЕРЕГУЛЯРНОСТЕЙ (57) Формула изобретения 1. Способ проверки ценного документа заданного типа ценного документа на наличие по меньшей мере одной нерегулярности по меньшей мере одного заданного типа, в котором: - регистрируют блок ультразвуковых данных, который с пространственным разрешением описывает по меньшей мере одно ультразвуковое свойство, преимущественным образом пропускание ультразвука, ценного документа, - определяют блок данных отклонений, который с пространственным разрешением описывает отклонение между блоком ультразвуковых данных и моделью и определен так, что описанное им отклонение относительно модели минимально, причем модель включает в себя модель для пространственной зависимости по меньшей мере одного ультразвукового свойства эталонных ценных документов заданного типа ценного документа без нерегулярностей по меньшей мере одного заданного типа, и - сиспользованием блока данных отклонений выполняют проверку наличия указания на нерегулярность по меньшей мере одного заданного типа на ценном документе. 2. Способ по п. 1, в котором модель задает несколько отличающихся друг от друга блоков данных модели, которые с пространственным разрешением описывают по меньшей мере одно ультразвуковое ...

СИСТЕМА КОНТРОЛЯ УПРАВЛЯЮЩЕГО КЛАПАНА И СПОСОБ ОБНАРУЖЕНИЯ ИЗМЕНЕНИЯ В МЕХАНИЧЕСКОЙ ЦЕЛОСТНОСТИ ВАЛА КЛАПАНА

Ultrasonic logging methods and apparatus for automatically calibrating measures of acoustic impedance of cement and other materials behind casing

Validation of cased-hole acoustic tools

In some implementations, a method for validating an acoustic bond-log tool includes having a test fixture including a wellbore casing emulating tubing. An outer tubing emulates a well formation and forms a perimeter of an annulus surrounding the wellbore casing emulating tubing. The wellbore casing tubing is configured with a stepped outer surface emulating different wellbore casing sidewall thicknesses. A dividing structure is coupled in the axial direction to the outer surface of the wellbore casing emulating tubing and to the inner surface of the outer tubing to radially subdivide the annulus into a plurality of hermetically sealable sample sections. Each sample section contains a sample of a material having a known acoustic impedance. The acoustic bond-log tool is validated by comparing a bond-log tool measurement of the acoustic impedance of each sample in a particular sample section to the known acoustic impedance of the sample.

METHOD FOR NON-DESTRUCTIVE DETECTION FOR FOREIGN MATTER IN MEDIUM USING WAVEFORM OF ULTRASONIC WAVE

This invention intends to provide a method for inspecting an inner state of an object by determining whether or not any foreign matter is generated inside the object material without being affected by any outside state of the object. This method comprises irradiating waveform of ultrasonic wave to an object whose inner state is desired to be inspected from outside, extracting waveform of a reflected wave traveling inside the object, detecting a difference of acoustic impedance of the foreign matter from the waveform of the reflected wave by extracting a deflection of the waveform and detecting for presence/absence of the foreign matter inside the object or presence/absence of the foreign matter and a quantity of the foreign matter.

ELECTROACOUSTIC IMAGING METHODS AND APPARATUS

Methods are disclosed for obtaining electroacoustic images of specimens. One method includes applying an acoustic wave to a specimen and forming an image based on an electroacoustically induced electric field or voltage. In another method, an electric field or voltage is applied to a specimen and an electroacoustically induced acoustic wave is measured to form an image. Apparatus suitable for obtaining electroacoustic images are disclosed as well as methods for distinguishing image contributions from the electroacoustic, thermoacoustic, and Hall effects.

ULTRASONIC AUTHENTICATING BUTTON

Embodiments of an ultrasonic button and methods for using the ultrasonic button are disclosed. In one embodiment, an ultrasonic button may include an ultrasonic transmitter configured to transmit an ultrasonic wave, a piezoelectric receiver layer configured to receive a reflected wave of the ultrasonic wave, a platen layer configured to protect the ultrasonic transmitter and the piezoelectric receiver layer, a first matching layer configured to match an acoustic impedance of the platen layer with an acoustic impedance of ridges of a finger, and an ultrasonic sensor array configured to detect the finger using the reflected wave.

DEVICE FOR DETECTING ANOMALIES IN AN AIRCRAFT TURBINE ENGINE BY ACOUSTIC ANALYSIS

L'invention concerne un dispositif (DISP) de détection d'anomalies par analyse acoustique d'une turbomachine (TURBO) d'aéronef (AERO), caractérisé en ce qu'il est non embarqué et qu'il comporte: Au moins un module (MOD) mobile comportant: des moyens d'acquisition (MDAC) directionnels de signaux acoustiques de la turbomachine (TURBO); des moyens de traitement (MDTT) desdits signaux, adaptés pour générer un rapport d'endommagement (RAP_END); des moyens de transmission (MDTM) dudit rapport d'endommagement (RAP_END); un serveur (SERV) apte à échanger des données avec le au moins un module (MOD), ledit serveur (SERV) comportant: des moyens de réception (MDR) du rapport d'endommagement (RAP_END); des moyens de stockage (MDS) adaptés pour stocker ledit rapport d'endommagement (RAP_END).

SIMPLIFIED IMPEDANCE PLANE BONDTESTING INSPECTION BY ULTRASONIC MEANS

An NDI system includes an ultrasonic transducer and an electronic device having an indicator, such as a light source. The electronic device energizes the transducer, receives sinusoidal signals from the transducer, determines impedance-plane coordinates corresponding to quadrature-phase separated components of the sinusoidal signals, and automatically activates the indicator if impedance-plane coordinates exceed a preset threshold. The system may be used in methods of inspecting layered structures such as composite aircraft components and repair patches applied to such structures.

흡음 재료 임피던스 특성 및 확장 성능 테스트 장치 및 테스트 방법

... 본 발명에서는 흡음 재료 임피던스 특성 및 확장 성능 테스트 장치 및 테스트 방법을 제공하며, 재료 성능 탐지 기술 분야에 관한 것으로서, 하기가 포함되는 바, 즉 모두 밀폐 캐비티인 제1 캐비티와 제2 캐비티, 상기 제1 캐비티와 제2 캐비티는 슬릿 채널을 통하여 연통되며, 여기서, 상기 제2 캐비티 내에 흡음 재료를 배치하며; 음파 진동 소스, 상기 음파 진동 소스의 발성면은 상기 제1 캐비티 내에 위치하며; 두 음파 픽업 센서, 두 상기 음파 픽업 센서는 각각 상기 제1 캐비티와 상기 제2 캐비티 내에 설치되어, 각각 상기 제1 캐비티와 상기 제2 캐비티 내의 음압을 탐지하며; 상기 제1 캐비티와 상기 제2 캐비티를 형성하는 재료는 모두 방음 재료이다. 본 발명은 종래 기술 중에서 흡음 재료를 선택하기 어려운 문제를 해결하였으며, 본 발명은 흡음 재료의 성능 테스트를 구현하여 흡음 재료의 선택을 위하여 기술 지표를 제공하며, 음향 제품의 생산 원가를 낮추고 기업을 위하여 더욱 큰 경제 수익을 창출한다.

VIBRATION BASED-STRUCTURE DAMAGE DETECTION SYSTEM USING DRONE AND METHOD THEREOF

It is possible to detach and attach only one detachable sensor module using a dron to a structure such as a bridge or a building and perform vibration-based nondestructive inspection using one detachable sensor module, It is possible to monitor the structure with a dron equipped with only one detachable sensor module and it is possible to monitor the structure according to the electromechanical impedance technique which is a high frequency vibration based monitoring technique, There is provided a vibration-based structure damage detection system and method using a drone capable of analyzing and determining damage to a structure corresponding to signal processing and frequency-dependent impedance by a probabilistic neural network method.

DEVICE FOR SENSING RIME OR THE LIKE

Rime or the like (2) on the surface (A) of a metal object (1) may be sensed by inserting therein a body (3) made of an identical material and having a flush interface (L), exposing it to ultrasonic waves that are reflected by said interface, providing a second body (6) through which ultrasonic waves travel along the same paths as in the first body, and exposing the second body to ultrasonic waves identical to the first ultrasonic waves. A reference layer (8) consisting of a material with an acoustic impedance of 1.4-4.1 MRayl or 72-100 MRayl is positioned on the interface (L') of said second body, and the differences between or sums of the electrical signals corresponding to the ultrasonic waves reflected by both interfaces are determined and used.

System and method for inspecting an industrial furnace or the like

A system for inspecting a refractory furnace having an outer shell and an inner refractory brick lining includes a stress wave generator for generating stress waves that propagate through the outer shell and the refractory brick lining. A stress wave sensor senses reflected stress waves returning to the outer shell. A processing unit in communication with the stress wave sensor processes output generated by the stress wave sensor to generate data representing the condition of the refractory brick lining. In this manner, the location and geometry of anomalies within the refractory brick lining can be determined without requiring the refractory furnace to be shut down.

Method for ultrasonic inspection of a closely packed array of fuel rods

A method for ultrasonically inspecting a closely packed regular array of mutually parallel, uniformly sized and spaced rigid rods surrounded by a thin-walled metallic channel and immersed in a compressible medium. The method utilizes the properties of coherently scattered ultrasonic waves to identify rods which are defective, out of position or missing. A plane, monochromatic ultrasonic wave is transmitted toward the array of rods on one side thereof. Then an interference pattern produced on an opposing side of the array is detected. This interference pattern is the result of multiple scattering and diffraction of the plane ultrasonic wave during propagation through the array of rods. When the wavelength is comparable with the rod diameter and the rods are not too close together, scattering results in spatial relationships that produce an unusually large amount of wave penetration through the array in certain directions relative to the incident propagation vector. This is akin to Bragg ...

Method and apparatus for hydraulic isolation determination

СПОСОБ И УСТРОЙСТВО ДЛЯ ПРОВЕРКИ ЦЕННЫХ ДОКУМЕНТОВ НА НАЛИЧИЕ НЕРЕГУЛЯРНОСТЕЙ

FIELD: apparatus for checking a valuable document.SUBSTANCE: invention relates to means of checking valuable document of specified type of valuable document. In the method, an ultrasonic data unit is recorded, which with spatial resolution describes at least one ultrasonic property of the valuable document, mainly ultrasound transmission, deviation data unit is determined, which with spatial resolution describes the deviation between the ultrasonic data unit and the model and is defined so that described by it deviation relative to model is minimum, wherein model includes model for spatial dependence of at least one ultrasonic property of reference valuable documents of specified type of valuable document without irregularities of at least one given type, and using the deviation data unit, checking whether there is indication of irregularity of at least one given type on the value document.EFFECT: technical result consists in improvement of reliability of checking valuable documents for the presence of at least one irregularity of at least one given type, for example irregularities in the form of at least one adhesion, mainly adhesive tape, and / or at least one crease and / or removal of material.30 cl, 7 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 683 623 C2 (51) МПК G07D 7/08 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК G07D 7/08 (2013.01); G01N 29/09 (2013.01); B65H 7/02 (2013.01) (21)(22) Заявка: 2016109942, 11.09.2014 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): ГИЗЕКЕ+ДЕВРИЕНТ КАРЕНСИ ТЕКНОЛОДЖИ ГМБХ (DE) Дата регистрации: 29.03.2019 (56) Список документов, цитированных в отчете о поиске: US 2011/226061 A1, 22.09.2011. RU 13.09.2013 DE 102013015224.0 (43) Дата публикации заявки: 18.10.2017 Бюл. № 2441229 C2, 27.01.2012. RU 2483276C1, 27.05.2013. US 2009/133502A1, 28.05.2009. 29 (45) Опубликовано: 29.03.2019 Бюл. № 10 (86) Заявка PCT: C 2 C 2 (85) Дата начала ...

СКВАЖИННАЯ СИСТЕМА ДАТЧИКОВ

СРЕДСТВО ОБНАРУЖЕНИЯ ДЕФЕКТОВ АКУСТИЧЕСКИМ АНАЛИЗОМ ТУРБОМАШИНЫ ЛЕТАТЕЛЬНОГО АППАРАТА

1. Устройство (DISP) для обнаружения дефектов акустическим анализом турбомашины (TURBO) летательного аппарата (AERO), отличающееся тем, что оно не встроено и что оно включает в себя:- по меньшей мере, один мобильный модуль (MOD), включающий в себя:- направленные средства (MDAC) сбора акустических сигналов турбомашины (TURBO);- средства (MDTT) обработки указанных сигналов, выполненные с возможностью создания отчета о повреждениях (RAP_END);- средства (MDTM) передачи указанного отчета о повреждениях (RAP_END);- сервер (SERV), выполненный с возможностью обмениваться данными с, по меньшей мере, одним модулем (MOD), упомянутый сервер (SERV), включает в себя:- средства (MDR) приема отчета о повреждениях (RAP_END);- средства (MDS) хранения, выполненные с возможностью хранения упомянутого отчета о повреждениях (RAP_END).2. Устройство (DISP) по п. 1, отличающееся тем, что средства сбора (MDAC) включают в себя направленный датчик (CAP), такой как микрофон и параболический усилитель (АМР).3. Устройство (DISP) по предшествующему пункту, отличающееся тем, что средства (MDAC) сбора включают в себя средства (MDAS) автоматического регулирования, выполненные с возможностью контроля ориентации направленного датчика (CAP).4. Устройство (DISP) по предшествующему пункту,отличающееся тем, что, когда летательный аппарат (AERO) движется, средства (MDAS) автоматического регулирования направляют ориентацию датчика (CAP) в соответствии с положением и траекторией летательного аппарата (AERO).5. Устройство (DISP) по п. 1, отличающееся тем, что средства (MDAC) сбора включают в себя средства (MDI) идентификации летательного аппарата (AERO).6. Устройство (DISP) по п. 1, отличающееся тем, что, по меньшей мере, один модуль (MOD) включает в себя средства (MDE) записи акустических сигналов, полученных с помощью средств (MDAC) сбора.7. Устройство (DISP) по п. 1, отличающееся тем, что сервер (SERV) включае РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК G05B 23/02 (13) 2014 138 489 A (2006.01) ФЕДЕРАЛЬНАЯ ...

Verfahren und Gerät zur hydraulischen Isolationsbestimmung

A device for determining the characteristic impedance spectrum of a token

A device for determining the characteristic impedance spectrum of a token

Simultaneous determination of multiphase flowrates and concentrations

DOWNHOLE SENSOR SYSTEM

The present invention relates to a downhole sensor system, comprising a plurality of sensor units forming a mesh network, providing for a reliable data path even though at least some of the sensor units are out of range from the data collection provided at surface level or at seabed level, wherein each one of said sensor units is positioned in a cemented annulus formed between a casing and a borehole wall, and at least one of said sensor units is provided with a detector for detecting cement characteristics of the cement in the annulus. Furthermore, the present invention relates to a method for providing a downhole sensor system and to a method for determining cement characteristics.

ULTRASONIC LOGGING METHODS AND APPARATUS FOR AUTOMATICALLY CALIBRATING MEASURES OF ACOUSTIC IMPEDANCE OF CEMENT AND OTHER MATERIALS BEHIND CASING

Methods and apparatus for in situ, continuous, automatic, and real-time acoustic impedance calibration of a transducer in an acoustic logging system. By taking the frequency characteristics of the ultrasonic transducer which are present in the internal casing reflection and convolving them with the frequency characteristics of the casing being logged, a theoretical model is created with a theoretical acoustic impedance fluid producing a theoretical free pipe signal at each measure point. The measured signal is then compared to the theoretical free pipe signal thereby yielding a calibrated acoustic impedance value for at each measure point. The only model employed is in the theoretical calculation of spectrum characteristics of free pipe.

METHOD FOR THE DETERMINATION OF THE STRESSES OCCURRING IN WOOD WHEN DRYING

The present invention relates to a method for the determination of the stresses occurring in wood when drying or being dried. With the method in accordance with the invention, electrodes (1) are used to generate an electric field in drying wood (2) in order to measure the electric complex spectrum using the impedance spectroscopy method while at the same time employing sensors (3) to measure acoustic emissions from drying wood and using the results for calculating the parameters required for determining the stress state existing in the wood and for monitoring and/or controlling the drying process.

METHOD AND APPARATUS FOR CHARACTERIZING PROCESS CONTROL EQUIPMENT INTEGRITY

In a process plant, a first series of impedance measurements from a valve body are received. The first series of impedance measurements are stored. A second series of impedance measurements from the valve body are received. The second series of impedance measurements from the valve body are stored. The first series and second series of impedance measurements are compared. An indication of loss of integrity of the valve body is generated if the first series of impedance measurements deviates from the second series of impedance measurements.

Sealing verification method, sealing detection device and sealing quality measuring system

ULTRASONIC INSPECTION FOR CERAMIC STRUCTURES

Methods, systems, and devices for ultrasonic inspection for ceramic structures are described. The method may include transmitting, via an ultrasonic transmitter, an ultrasonic waveform through the ceramic structure, where the ceramic structure includes two opposing ends and one or more outer faces extending between the two opposing ends, the one or more outer faces being at least partially enclosed by a casing and the ultrasonic transmitter being positioned adjacent to a first of the two opposing ends. The method may also include receiving a propagated waveform via an ultrasonic receiver positioned adjacent to a second of the two opposing ends and generating an image based at least in part on the propagated waveform, the image illustrating at least a portion of the casing and one or more detected features of the ceramic structure at the one or more outer faces of the ceramic structure adjacent to the casing. 1. A method for detecting features of a ceramic structure , the method comprising:transmitting, via an ultrasonic transmitter, an ultrasonic waveform through the ceramic structure, wherein the ceramic structure comprises two opposing ends and one or more outer faces extending between the two opposing ends, wherein the one or more outer faces are at least partially enclosed by a casing, and wherein the ultrasonic transmitter is positioned adjacent to a first of the two opposing ends;receiving a propagated waveform via an ultrasonic receiver positioned adjacent to a second of the two opposing ends, the propagated waveform being the ultrasonic waveform after traversal of the ceramic structure; andgenerating an image based at least in part on the propagated waveform, wherein the image illustrates at least a portion of the casing and is capable of illustrating one or more detected features of the ceramic structure at the one or more outer faces of the ceramic structure adjacent to the casing.2. The method of claim 1 , further comprising:enclosing the one or more ...

ULTRASONIC DETECTION AND TENSILE CALIBRATION TEST METHOD FOR BONDING STRENGTH GRADE

An ultrasonic detection and tensile calibration test method for bonding strength grade comprising bonding an upper substrate block to bonding groove(s) to form a theoretical bonding area, and applying a downward actual tensile force to a lower substrate block; obtaining an actual bonding area of the theoretical bonding area; calculating a first actual bonding strength by using the actual tensile force and the actual bonding area, and comparing the first actual bonding strength with a second actual bonding strength calculated to verify the correctness of the theoretical bonding area as a calibrated bonding strength; forming a bond strength table in which the theoretical bonding areas, the actual bonding areas and the first actual bonding strengths are in one-to-one correspondence; and using the actual bonding area to find the actual bonding strength corresponding to the actual bonding area from the bonding area bonding strength table. 1. An ultrasonic detection and tensile calibration test method for bonding strength grade , comprising:a step 1 of arranging an upper substrate block and a lower substrate block on a tensile testing machine respectively, wherein the upper substrate block is fixedly arranged, and an upper surface of the lower substrate block is provided with nine bonding grooves of the same area;{'sub': 'lv', 'a step 2 of bonding the upper substrate block to the bonding groove(s) to form a theoretical bonding area s, and a downward actual tensile force is applied to the lower substrate block;'}{'sub': 'sj', 'a step 3 of scanning an actual bonding area sof the theoretical bonding area by using an ultrasonic scanning method;'}{'sub': sj1', 'sj', 'sj1', 'sj2, 'a step 4 of calculating a first actual bonding strength σby using the actual tensile force in the step 2 and the actual bonding area sin the step 3, and the first actual bonding strength σis compared with a second actual bonding strength σcalculated by an equation to verify the correctness of a method ...

OBSTACLE DETECTION DEVICE

An obstacle detection device includes an air-coupled ultrasonic wave sensor mounted into a penetrating hole of a mounting member with an emitting surface being oriented towards outside the obstacle detection device, and an acoustic matching layer fixed to the emitting surface to achieve matching between the acoustic impedance of the air-coupled ultrasonic wave sensor and that of the air, in which microcapsules are added to the same material as that of the mounting member 1. An obstacle detection device comprising:an air-coupled ultrasonic wave sensor having an ultrasonic transducer on an inner side of a bottom surface of a metallic case, and an emitting surface on an outer side of the bottom surface of said metallic case; andan acoustic matching layer placed and mounted in such a way that a surface thereof is fixed to said emitting surface and another surface thereof is exposed to outside said obstacle detection device via a penetrating hole of a mounting member, in which microcapsules are added to a material which is same as that of said mounting member.2. The obstacle detection device according to claim 1 , wherein an added amount of said microcapsules is a one that makes an acoustic impedance of said acoustic matching layer have a value intermediate between the acoustic impedance of said air-coupled ultrasonic wave sensor and that of the air.3. The obstacle detection device according to claim 2 , wherein the added amount of said microcapsules is a one that makes the acoustic impedance of said acoustic matching layer have a value which is approximately a square root of a product of the acoustic impedance of said air-coupled ultrasonic wave sensor and that of the air.4. The obstacle detection device according to claim 1 , wherein said acoustic matching layer has a thickness which is approximately one-quarter of a wavelength of an ultrasonic wave excited by said air-coupled ultrasonic wave sensor.5. The obstacle detection device according to claim 1 , wherein a ...

SYSTEMS AND METHODS FOR TAGGING AND ACOUSTICALLY CHARACTERIZING CONTAINERS

Embodiments of the present invention provide systems and methods for tagging and acoustically characterizing containers. 1providing the container, the container: originating from within a mold and comprising at least one vertical sidewall; and a bottom coupled to the at least one vertical sidewall wherein the bottom has an interior side, an exterior side, and a thickness and includes a plurality of recesses, grooves, or protrusions on the exterior side for acoustic characterization of the container;transmitting an acoustic signal toward the bottom;receiving a plurality of reflections of the acoustic signal, wherein the plurality of reflections comprises a first reflection from a first subset of the plurality of recesses, grooves, or protrusions a second reflection from a second subset of the plurality of recesses, grooves, or protrusions, the first reflection having a first time of flight and the second reflection having a second time of flight; andcharacterizing the container based on the first and second times of flight, wherein the characterizing comprises determining a characteristic of the container,wherein (a) the characteristic is associated with a location in the mold from which the container originates or (b) the mold is one of a plurality of molds and the characteristic is associated with the mold.. A method for acoustically characterizing a container configured to hold a fluid, the method comprising: This application is a continuation of U.S. patent application Ser. 16,705,807, filed Dec. 6, 2019, which is a continuation of U.S. patent application Ser. 15/289,692, filed Oct. 10, 2016, which claims the benefit of U.S. Provisional Patent Application No. 62/240,412, filed Oct. 12, 2015, and all entitled “Systems and Methods for Tagging and Acoustically Characterizing Containers,” the entire contents of all applications are incorporated by reference herein.This application relates to tagging containers, such as containers formed using injection molding. But ...

BATTERY PROTECTED AGAINST ELECTRIC ARCS

The invention relates to a DC electrical power supply source including 1. A DC electrical power supply source , comprising:a protective housing;electrical energy storage devices disposed in the protective housing, said storage devices being connected electrically in series by way of interconnection elements;{'b': '4', 'an acoustic sensor () configured to measure ultrasounds; and'}{'b': '7', 'a filling medium () disposed in the housing;'}wherein the filling medium exhibits a homogeneous acoustic impedance and forms a continuous acoustic link between said interconnection elements and the acoustic sensor.2. The DC electrical power supply source as claimed in claim 1 , further comprising an electronic circuit configured to detect the occurrence of an electric arc as a function of the ultrasounds measured by the acoustic sensor.3. The DC electrical power supply source claim 2 , as claimed in claim 2 , comprising a plurality of acoustic sensors distributed within the protective housing and configured to measure ultrasounds claim 2 , the filling medium forming a continuous acoustic link between the interconnection elements and the plurality of acoustic sensors claim 2 , and the electronic circuit being configured to determine the position of the electric arc as a function of the respective measurements of an ultrasound spike by each of said plurality of acoustic sensors.4. The DC electrical power supply source as claimed in claim 2 , further comprising an electromagnetic sensor disposed in the protective housing claim 2 , the electronic circuit being configured to confirm a detection of occurrence of an electric arc as a function of the electromagnetic signal measured by the electromagnetic sensor.5. The DC electrical power supply source as claimed in claim 4 , in which the electronic circuit is configured to determine the position of the electric arc as a function of a duration between an ultrasound spike measured by the ultrasound sensor and an electromagnetic spike ...

ACTUATOR RING CHARACTERISTIC MEASUREMENT METHOD

Methods and systems are disclosed for determining at least one actuation characteristic of an imaging device. For example, one method includes determining a target distance to move a lens by an actuator to focus a scene on an image sensor, where moving the lens by the actuator causes an associated lens vibration having at least one actuation characteristic, determining a scan sequence having a plurality of successive measurements, each measurement having at least a first measurement parameter and subsequent measurement parameter, each measurement parameter including at least one step and at least one time delay, moving the lens the target distance for each successive measurement based on the measurement parameters of each successive measurement, measuring a performance indicator of each successive measurement, and determining at least one actuation characteristic based on the first measurement parameter of the measurement having the highest performance indicator. 1. A method for determining at least one actuation characteristic of an imaging device comprising:determining a target distance to move a lens by an actuator to focus a scene on an image sensor, wherein moving the lens by the actuator causes an associated lens vibration having at least one actuation characteristic;determining a scan sequence having a plurality of successive measurements, each measurement having at least a first measurement parameter and subsequent measurement parameter, each measurement parameter including at least one step and at least one time delay;moving the lens the target distance for each successive measurement based on the measurement parameters of each successive measurement;measuring a performance indicator of each successive measurement; anddetermining at least one actuation characteristic based on the first measurement parameter of the measurement having the highest performance indicator.2. The method of claim 1 , wherein the lens vibration is a sinusoidal ringing imparted to ...

SURFACE PROPERTY MEASUREMENT METHOD, SURFACE PROPERTY MEASUREMENT APPARATUS, AND RECORDING MEDIUM

A surface property measurement technology by which a surface property of a substance can be evaluated with high accuracy, is provided. 1. A surface property measurement method comprising:radiating an ultrasonic wave to a measurement target and acquiring a reflected signal from the measurement target;calculating, by a measurement apparatus, a maximum value of a cross-correlation function between the reflected signal from the measurement target and a reference reflected signal from a reference substance acquired in advance;calculating a reflection component at an interface, by using the maximum value of the cross-correlation function; andoutputting, as a measurement value, one of an acoustic impedance of the measurement target or an acoustic impedance of the reference substance, according to a result of comparing the reflection component with the reference reflected signal.2. The surface property measurement method according to claim 1 , further comprising:calculating and outputting the acoustic impedance of the measurement target, upon determining that an intensity of the reflection component is lower than an intensity of the reference reflected signal.3. The surface property measurement method according to claim 1 , further comprising:outputting the acoustic impedance of the reference substance, upon determining that an intensity of the reflection component is not lower than an intensity of the reference reflected signal.4. The surface property measurement method according to claim 1 , wherein the calculating of the reflection component includes multiplying the reference reflected signal by a ratio of the reflected signal from the measurement target to the reference reflected signal and by the maximum value of the cross-correlation function.5. The surface property measurement method according to claim 1 , further comprising:one-dimensionally or two-dimensionally and relatively scanning the ultrasonic wave to the measurement target; andoutputting the measurement ...

Method for nondestructive testing of joint between wire and electrical terminal

A method of nondestructive testing of a joint between an electrical terminal and a wire cable that is bonded to the electrical terminal is presented herein. This method includes the steps of providing an ultrasonic transducer in electrical communication with an electrical signal generator and signal analyzer, placing the transducer in ultrasonic communication with the joint, transmitting a first ultrasonic signal via stimulation of the transducer by a first electrical signal having a first frequency from the signal generator, receiving a first reflected signal of the first ultrasonic signal via the ultrasonic transducer, transmitting a second ultrasonic signal via stimulation of the transducer by a second electrical signal having a second frequency different than the first frequency from the signal generator, receiving a second reflected signal of the second ultrasonic signal via the transducer, and determining the quality of the joint by analyzing the first and second reflected signals.

ULTRASONIC MEASURING METHOD AND DEVICE

An ultrasonic measuring method for measuring an inside of a measured object by using ultrasonic waves propagating through air includes attaching a sheet having an acoustic impedance higher than the air as well as lower than the measured object to the measured object and measuring the inside of the measured object to which the sheet is attached by using a sensor. 1. An ultrasonic measuring method for measuring an inside of a measured object by using ultrasonic waves propagating through air comprising:attaching a sheet having an acoustic impedance higher than the air as well as lower than the measured object to the measured object; andmeasuring the inside of the measured object to which the sheet is attached by using a sensor.2. The ultrasonic measuring method according to claim 1 , further comprising:detaching the sheet from the measured object after measuring the inside of the measured object.3. The ultrasonic measuring method according to claim 1 ,wherein, when an acoustic velocity of a longitudinal wave of the sheet is “Vs”, a center frequency of the sensor is “fo”, and a thickness of the sheet is “t”, t=Vs/(4×fo) is satisfied.4. The ultrasonic measuring method according to claim 1 ,wherein the sheet includes a concave portion having a curved surface, andthe sensor is arranged in a center of a curvature of the curved surface and receives ultrasonic waves in a center of a curvature of the curved surface.5. The ultrasonic measuring method according to claim 1 ,wherein the sheet includes a first layer and a second layer having a lower acoustic impedance than the first layer, andthe sheet is attached so that the first layer is in the measured object side and the second layer faces the air.6. An ultrasonic measuring device measuring an inside of a measured object by using ultrasonic waves propagating through air comprising:a sheet having an acoustic impedance higher than the air as well as lower than the measured object;an attaching mechanism configured to attach the ...

Fibre Optic Sensing

This application relates to methods and apparatus for fibre optic sensing which can provide information about the environment in which the fibre optic is deployed. In particular the application relates to fibre optic based sensing of the mechanical impedance of the environment. The method comprises using an interrogator () to interrogate an optical fibre () which is coupled to a first element () which is responsive to electromagnetic fields. In use a varying electric current (I), which may be an alternating current, is applied so as to induce a varying force (F) on said first element. The optical radiation backscattered from within the optical fibre is analysed to determine a measurement signal indicative of a variation in the backscattered radiation corresponding with said electric current applied. The first element may be a first conductor () and the varying current may be supplied to the first conductor, or to a second conductor (). Alternatively the first element could be a magnetic element (). By applying a variable force to the first element, and hence the optical fibre, the characteristics of the environment can be determined. 1. A method of fibre optic sensing comprising:interrogating an optical fibre deployed in an area of interest with optical radiation wherein at least part of the optical fibre is mechanically coupled to at least a first element responsive, in use, to electromagnetic fields;applying a varying electric current so as to induce a varying force on said first element; andanalysing optical radiation backscattered from within said optical fibre to determine a measurement signal indicative of a variation in the backscattered radiation corresponding with said electric current applied; andanalysing said measurement signal to determine a characteristic of the environment in which the optical fibre is deployed.2. A method as claimed in wherein the first element is a first conductor.3. A method as claimed in comprising generating claim 2 , in use ...

ACOUSTIC WAVE ACQUISITION APPARATUS AND METHOD FOR CONTROLLING THE SAME

An acoustic wave acquisition apparatus moves a probe so that, in a case where a distance between a probe positioned at a first point and a second point corresponding to a target position is below a predetermined threshold value, a ratio of a length of a trajectory to a distance between the first point and the second point is larger than in a case where the distance between the probe and the second point exceeds the predetermined threshold value. 1. An acoustic wave acquisition apparatus comprising:a probe configured to receive an acoustic wave propagated from a subject;a moving unit configured to move the probe relative to the subject;a target position designation unit configured to designate a target position to which the probe is to be moved; anda movement control unit configured to control the moving unit to move the probe along a trajectory,wherein the movement control unit determines the trajectory so that, in a case where a distance between the probe positioned at a first point and a second point corresponding to the target position is below a predetermined threshold value, a ratio of a length of the trajectory to a distance between the first point and the second point is larger than in a case where the distance between the probe and the second point exceeds the threshold value.2. The acoustic wave acquisition apparatus according to claim 1 , wherein the probe includes:a supporting unit having a concave portion configured to hold an acoustic matching material; anda plurality of acoustic wave detection elements disposed along the concave portion.3. The acoustic wave acquisition apparatus according to claim 1 , wherein the movement control unit moves the probe along a curve such that a line extending in a direction in which the probe passes through the first point is a tangent line of the curve.4. The acoustic wave acquisition apparatus according to claim 3 , wherein the movement control unit moves the probe along the curve claim 3 , and moves the probe along a ...

CONTROL VALVE MONITORING SYSTEM

A control valve monitoring system is disclosed. The control valve monitoring system includes at least one sensor connected to one of a valve stem or valve shaft, and the at least one sensor detects a change in mechanical integrity of one of the valve stem or valve shaft. A device for providing data regarding the change in mechanical integrity of one of the valve stem or valve shaft is provided, allowing maintenance of the valve shaft or valve stem to be conducted in an efficient manner. 1. A control valve monitoring system comprising:at least one sensor connected to one of a valve stem or valve shaft, the sensor for detecting a change in mechanical integrity of one of the valve stem or valve shaft, wherein the at least one sensor is an optical fiber Bragg grating (FBG) sensor; anda device for providing data regarding the change in mechanical integrity of one of the valve stem or valve shaft.28.-. (canceled)9. The control valve monitoring system of claim 1 , wherein the optical fiber Bragg grating (FBG) sensor measures strain at a localized area of the valve shaft or valve stem.10. The control valve monitoring system of claim 9 , wherein the FBG sensor is attached to an outer surface of the valve shaft or valve stem between a valve control and an actuator.11. The control valve monitoring system of claim 1 , wherein the at least one sensor is wireless.12. (canceled)13. The control valve monitoring system of claim 1 , wherein the at least one sensor is attached to the valve stem or valve shaft by one or more of a bonding agent claim 1 , a soldering agent claim 1 , or a bolt.14. The control valve monitoring system of claim 1 , further including memory and a power source for constant data gathering and reporting of faults in the valve shaft or valve stem.15. A method of detecting a change in mechanical integrity of a valve shaft of a rotary-shaft control valve or a valve stem of a sliding-stem control valve claim 1 , the method comprising:integrating at least one sensor ...

ACOUSTIC SENSING THROUGH A BARRIER

The invention provides embodiments of an apparatus and for improved, higher quality and higher resolution acoustic impedance scanning of an object through a barrier. Such acoustic impedance scanning can be employed to obtain biometric information of a person via fingerprint pattern. 1. An apparatus for acoustically scanning a target , comprising:a barrier having an acoustic impedance property value and having a first side and a second side that each face in substantially opposing directions; andan acoustic sensor having an acoustic impedance property value that matches or proximately matches said acoustic impedance value of said barrier, said acoustic sensor having a first transmitting side through which acoustic energy is transmitted away from said acoustic sensor, whereinsaid first transmitting side of said acoustic sensor is positioned so that it abuts said first side of said barrier, and positioned so that said acoustic sensor is configured to transmit said acoustic energy through said barrier and towards a target abutting said second side of said barrier, andsaid acoustic energy is transmitted at a frequency exceeding a resonant frequency for said acoustic sensor that would otherwise be in effect if said acoustic sensor was instead being operated in direct physical contact with said target.2. The apparatus of claim 1 , wherein said acoustic impedance property value of said acoustic sensor proximately matches that of said barrier by having an amount of acoustic impedance that is no more than two percent different from said acoustic impedance value of said barrier.3. The apparatus of claim 1 , wherein said acoustic impedance property value of said acoustic sensor proximately matches that of said barrier by having an amount of acoustic impedance that is no more than five percent different from said acoustic impedance value of said barrier.4. The apparatus of claim 1 , wherein said acoustic impedance property value of said acoustic sensor proximately matches that ...

STRUCTURAL HEALTH MONITORING SYSTEM EMPLOYING ELECTROMECHANICAL IMPEDANCE TECHNOLOGY

A method to acquire the structural health state of an aircraft mechanical component performs measurements at each frequency point of interest by using a network of transducers and working each one simultaneously as actuator and sensor. Each transducer is individually excited by a sinusoidal, constant frequency and arbitrary amplitude, voltage waveform for each arbitrary frequency point used to interrogate the structure. A dedicated hardware executes an analogical (analog) quantization to measure electrical current and average electrical power consumed by each transducer. With these two variables, the electromechanical signature of the structure is obtained at different areas of the monitored structure. 1. A method for acquiring the health state of an object or a structural component using an EMI technique by performing measurements at each frequency point of the interest bandwidth by using one or more piezoelectric transducers operating as sensors/actuators at the same time , the method comprising:a. providing sine wave excitation, at both constant frequency and amplitude, for each frequency point of interest;b. analog quantizing the RMS circulating current and the average consumed power of the transducer in order to directly measure the resistive part of the electromechanical impedance;c. compensating for environmental effects; andd. compensating for static and dynamic loading;e. wherein the method uses only one transducer to monitor the health state of a pre-determined area of an object or structure.2. A method as set forth in including using a specialized circuit to perform the analog quantizing of both average power and RMS current of the transducer.3. A method as set forth in further including using a set of post-processing algorithms to compensate for the effects of changes in temperature and pressure applied on the monitored structure or object.4. A method as set forth in further including monitoring the health state of metallic or non-metallic objects or ...

Wafer clamp detection based on vibration or acoustic characteristic analysis

A workpiece clamping status detection system and method for detecting a clamping state of a clamping device is provided. A clamping device having a clamping surface is configured to selectively clamp a workpiece to the clamping surface. The clamping device may be an electrostatic chuck or a mechanical clamp for selectively securing a semiconductor wafer thereto. A vibration-inducing mechanism is further provided, wherein the vibration-inducing mechanism is configured to selectively vibrate one or more of the clamping device and workpiece. A vibration-sensing mechanism is also provided, wherein the vibration-sensing mechanism is configured to detect the vibration of the one or more of the clamping device and workpiece. Detection of clamping status utilizes changes in acoustic properties, such as a shift of natural resonance frequency or acoustic impedance, to determine clamping condition of the workpiece. A controller is further configured to determine a clamping state associated with the clamping of the workpiece to the clamping surface, wherein the clamping state is associated with the detected vibration of the one or more of the clamping device and workpiece.

Systems and Methods for In-Situ Cure Monitoring and Defect Detection

Non-destructive evaluation (NDE) systems and methods are provided for monitoring objects being manufactured during a cure or consolidation process and for detecting defects that occur during the cure or consolidation process or to detect conditions of the process that can lead to the occurrence of defects. Information acquired by the NDE system during the cure or consolidation process can be used to adjust one or more parameters of the process in real-time to prevent defects from occurring or to reduce the number and/or severity of defects that occur during the cure or consolidation process. 1. A non-destructive evaluation (NDE) system for in-situ monitoring of parts during a cure process to detect defects in the parts that occur during the cure process , the NDE system comprising:a vessel that is configured to be resistant to at least one of a high temperature and a high pressure of a chamber in which parts are cured, the vessel being configured to be placed inside of the chamber;an ultrasonic testing (UT) scanning system disposed inside of the vessel, the UT scanning system having a UT transducer;a mold secured to a side of the vessel in proximity to the UT transducer, the mold being adapted to operate as a build plate for a part to be cured such that the part to be cured is in contact with the mold or with a couplant that couples the mold with the part to be cured, the mold and the UT transducer being positioned relative to each other such that UT waves passing out of a transducer head of the UT transducer pass into a part and such that UT waves reflected from within the part pass are incident on the transducer head, the UT transducer converting the UT waves that are incident on the transducer head into UT electrical signals; anda processor in communication with the UT scanning system, the processor being configured to perform a cure monitoring and defect detection algorithm that processes the electrical signals to detect one or more defects occurring in the part ...

SYSTEMS AND METHODS FOR TAGGING AND ACOUSTICALLY CHARACTERIZING CONTAINERS

Embodiments of the present invention provide systems and methods for tagging and acoustically characterizing containers. 111.-. (canceled)12. A method of characterizing a container configured to hold a fluid , the method comprising: at least one vertical sidewall; and', 'a bottom coupled to the at least one vertical sidewall, the bottom being configured to receive an acoustic signal, the bottom including a plurality of recesses, grooves, or protrusions thereon or therein;, 'providing the container, the container comprisingtransmitting an acoustic signal through the bottom, the plurality of recesses, grooves, or protrusions providing a plurality of times of flight of the acoustic signal through the bottom;receiving a reflection of the transmitted acoustic signal; andcharacterizing an acoustic impedance of the container based on the reflection.13. The method of claim 12 , further comprising:retrieving from a computer-readable medium a value characterizing a thickness of the bottom based on the reflection; andwherein the characterizing the acoustic impedance of the container is based on the retrieved value characterizing the thickness of the bottom.14. The method of claim 12 , wherein a first subset of the plurality of recesses claim 12 , grooves claim 12 , or protrusions includes a first depth providing a first time of flight of the acoustic signal claim 12 , and wherein a second subset of the plurality of recesses claim 12 , grooves or protrusions includes a second depth providing a second time of flight of the acoustic signal claim 12 , the first depth being different from the second depth.15. The method of claim 12 , wherein a first one of the plurality of recesses claim 12 , grooves claim 12 , or protrusions includes a different length claim 12 , aspect ratio claim 12 , or depth than a second one of the plurality of recesses claim 12 , grooves claim 12 , or protrusions.16. (canceled)17. The method of claim 15 , wherein the plurality of recesses claim 15 , grooves ...

METHODS AND APPARATUS FOR DETECTING DEFECTS IN AN OBJECT OF INTEREST

A method for detecting defects in an object of interest comprises applying an ultrasonic signal including a tone burst having a predetermined frequency and number of cycles into an object of interest, receiving a return signal reflected from the object of interest, and processing the return signal to detect defects in the at least one inner material. The object may have an outer material and at least one inner material that have different acoustic impedances. An ultrasonic sensor system includes an ultrasonic sensor configured to generate an ultrasonic signal having a tone burst at a predetermined frequency corresponding to a resonant frequency of an outer material of an object of interest. 1. A method for detecting defects in an object of interest , the method comprising:applying an ultrasonic signal including a tone burst having a predetermined frequency and number of cycles into an object of interest, the object having an outer material and at least one inner material that have different acoustic impedances;receiving a return signal reflected from the object of interest; andprocessing the return signal to detect defects in the at least one inner material.2. The method of claim 1 , wherein applying the ultrasonic signal includes setting the predetermined frequency of the tone burst at a resonant frequency of the outer material of the object of interest.3. The method of claim 2 , wherein the outer material has an acoustic impedance that is higher than an acoustic impedance of the at least one inner material.4. The method of claim 1 , wherein applying the ultrasonic signal into an object of interest includes applying the ultrasonic signal into a solid rocket motor from a location exterior thereto claim 1 , wherein the outer material includes a case and the at least one inner material includes a liner bonded between the case and propellant.5. The method of claim 1 , wherein processing the return signal includes filtering the return signal.6. The method of claim 5 , ...

Wear indication device for a flow control valve

A flow control device includes a valve body having an inlet, an outlet, and a flow path connecting the inlet and the outlet. A flow vane is coupled to the valve body and disposed in the flow path to divide a flow of fluid through the valve body. The flow vane has a first surface, a second surface, and a corrugation formed on at least one of the first and second surfaces. A control element is disposed in the flow path and movable in the valve body between an open position and a closed position.

Ultrasonic Authenticating Button

Embodiments of an ultrasonic button and methods for using the ultrasonic button are disclosed. In one embodiment, an ultrasonic button may include an ultrasonic transmitter configured to transmit an ultrasonic wave, a piezoelectric receiver layer configured to receive a reflected wave of the ultrasonic wave, a platen layer configured to protect the ultrasonic transmitter and the piezoelectric receiver layer, a first matching layer configured to match an acoustic impedance of the platen layer with an acoustic impedance of ridges of a finger, and an ultrasonic sensor array configured to detect the finger using the reflected wave. 1. An ultrasonic button , comprising:an ultrasonic transmitter configured to transmit an ultrasonic wave;a piezoelectric receiver layer configured to receive a reflected wave of the ultrasonic wave;a platen layer configured to protect the ultrasonic transmitter and the piezoelectric receiver layer;a first matching layer configured to match an acoustic impedance of the platen layer with an acoustic impedance of ridges of a finger; andan ultrasonic sensor array configured to detect the finger using the reflected wave.2. The ultrasonic button of claim 1 , whereinthe first matching layer has an acoustic impedance approximately equal to a geometric mean of the acoustic impedance of the ridges of the finger and the acoustic impedance of the platen layer.3. The ultrasonic button of claim 2 , whereina thickness of the platen layer and a thickness of the first matching layer are selected based at least in part on a signal strength of the reflected wave.4. The ultrasonic button of claim 3 , whereinthe thickness of the platen layer is approximately equal to a multiple of a half wavelength of the ultrasonic wave; andthe thickness of the first matching layer is approximately equal to a quarter wavelength of the ultrasonic wave.5. The ultrasonic button of claim 1 , further comprising:a second matching layer configured to match the acoustic impedance of the ...

Validation of Cased-Hole Acoustic Tools

In some implementations, a method for validating an acoustic bond-log tool includes having a test fixture including a wellbore casing emulating tubing. An outer tubing emulates a well formation and forms a perimeter of an annulus surrounding the wellbore casing emulating tubing. The wellbore casing tubing is configured with a stepped outer surface emulating different wellbore casing sidewall thicknesses. A dividing structure is coupled in the axial direction to the outer surface of the wellbore casing emulating tubing and to the inner surface of the outer tubing to radially subdivide the annulus into a plurality of hermetically sealable sample sections. Each sample section contains a sample of a material having a known acoustic impedance. The acoustic bond-log tool is validated by comparing a bond-log tool measurement of the acoustic impedance of each sample in a particular sample section to the known acoustic impedance of the sample. 1. A method for validating an acoustic bond-log tool , comprising: a wellbore casing emulating tubing with a bond-log tool receiving bore;', 'an outer tubing forming a perimeter of an annulus surrounding the wellbore casing emulating tubing and emulating a well formation; and', 'a dividing structure coupled in the axial direction to the outer surface of the wellbore casing emulating tubing and to the inner surface of the outer tubing to radially subdivide the annulus into a plurality of sample sections, each sample section containing a sample of a material having a known acoustic impedance; and, 'having a test fixture, comprisingvalidating the acoustic bond-log tool by comparing a bond-log tool measurement of the acoustic impedance of each sample in a particular sample section to the known acoustic impedance of the sample.2. The method of claim 1 , further comprising coupling an upper end module to the upper edges of the plurality of sample sections claim 1 , wherein the upper end module surrounds the wellbore casing emulating tubing ...

AUTOMATED ULTRASONIC INSPECTION OF ADHESIVELY-BONDED JOINTS AND INSPECTION METHOD THEREFOR

An inspection system for determining the efficacy and veracity of a bond-line, comprising: a robotic arm assembly providing a gimbal mount for enabling linear and rotary translation about multiple axes; an ultrasonic transducer affixed to the gimbal mount of the robotic arm assembly and comprising a planar array of transducer elements, each transducer element capable of transmitting and receiving reflected ultrasonic energy indicative of changes in acoustic impedance within the bond-line. The reflected energy of each transducer element provides acquired bond-line data indicative of the efficacy of the bond-line while select transducer elements produce orientation data indicative of the orientation of the planar array relative to the contour of the bonded joint. The bond-line and orientation data are combined to determine whether the direction of the transmitted pulse should be altered to validate the bond-line data. 1. An inspection system for determining the efficacy of a bond-line of a bonded part , comprising:a robotic arm assembly having a plurality of linear and rotary actuators configured to effect linear translation and rotational displacement of the robotic arm assembly about multiple axes, the robotic arm assembly including position encoders issuing position signals indicative of the instantaneous or almost instantaneous position of the robotic arm assembly;a flexible ultrasonic transducer mounted to a housing of the robotic arm assembly, the ultrasonic transducer having an array of inspection elements, each element configured to transmit and receive ultrasonic energy indicative of the efficacy of the bond-line and issuing an ultrasonic impedance signal indicative thereof; anda signal processor, responsive to the position signals of the robotic arm assembly and the ultrasonic impedance signals of the flexible ultrasonic transducer, to determine whether the efficacy of the bond-line is within a predetermined acceptance threshold.2. The inspection system of ...

Signal Processing System and Methods

Embodiments relate to a signal processing system and method in particular for determining the location of a feature within a hollow body using deconvolution of measured acoustic waves. 138-. (canceled)39. A pipe inspection method to identify characteristic acoustic impedance associated with a pipe; the method comprising the steps of{'sub': x1', 'x2', 'xn', 'x2, 'resolving a plurality of measured resultant pressure waveforms, p(t), p(t) . . . , p(t) and p(t), associated with the pipe into a number of associated waveforms; the associated waveforms being a function of the plurality of measured resultant pressure waveforms measured at respective positions; the plurality of measured resultant pressure waveforms representing measurements by a plurality of acoustic detection devices positioned at the respective positions of a launch body for exciting the pipe using an excitation waveform;'}{'sub': x1', 'x2', 'm12', 'x2', 'm12', 'x1', 'm12, 'sup': '−1', 'i': 'represents the transfer function between a first and second acoustic detection devices of the plurality of acoustic detection devices.', 'deriving the impulse response, h(t), or transfer function of the pipe from said at least a pair associated waveforms; the impulse response bearing the characteristic acoustic impedance associated with the pipe, wherein the step of deriving the impulse response comprises evaluating h(t) from h(t)*[p(t)−p(t)*h(t)]=[p(t)*h(t)−p(t)], where h(t)'}40. The method of claim 39 , further comprising exciting the pipe using the excitation waveform via the launch body.41. The method of claim 39 , further comprising taking a plurality of measurements via the acoustic detection devices; the plurality of measured resultant pressure waveforms being associated with the plurality of measurements.42. The method of claim 39 , further comprising filtering the plurality of measured resultant pressure waveforms prior to said resolving.43. The method of claim 42 , wherein the step of filtering applies one or ...

SYSTEM AND METHOD FOR ACQUIRING ACOUSTIC INFORMATION FROM A RESONATING BODY

The present invention provides for systems and methods for acquiring acoustic information from a resonating body. Specifically, a focused light beam is emitted from an emitter module onto an impedance matching reflector. The impedance matching reflector has similar wave propagation characteristics to the resonating body, so as to capture a mechanical vibrations thereof. The impedance matching reflector reflects the focused light beam as it vibrates, and the vibrations are captured by a receiver module through the reflected light beam, which is converted to an input signal. The input signal may be further processed and converted to an audio output signal, as an accurate representation of the acoustic information emanating from within the resonating body. 1. A system for acquiring acoustic information from a resonating body comprising:an emitter module configured to emit a focused light beam onto an impedance matching reflector in order to create a reflected light beam,said impedance matching reflector is structured to have at least one wave propagation characteristic that is substantially similar to the resonating body, so as to vibrate at a substantially similar frequency as the resonating body,a receiver module structured to detect the vibrations in the reflected light beam as it vibrates in accordance to said impedance matching reflector, said receiver module is further configured to convert the reflected light beam into an input signal.2. The system as recited in further comprising an acoustic transducer structured to convert the input signal into an audio signal.3. The system as recited in wherein said receiver module comprises a light transducer structured to convert the reflected light signal into the input signal.4. The system as recited in wherein said emitter module comprises at least one laser diode.5. The system as recited in wherein said receiver module comprises at least one photo diode.6. The system as recited in wherein said receiver module comprises ...

Method and assembly for inspecting a partially cured repair patch prior to installation

A method and assembly are provided in order to inspect a partially cured repair patch prior to installation. For example, an assembly for inspecting a repair patch is provided that includes a partially cured repair patch comprised of a composite material. The assembly also includes an acoustic facilitation layer disposed proximate of the surface of the repair patch through which ultrasonic signals will be introduced. The assembly further includes a vacuum bag surrounding the repair patch and the acoustic facilitation layer. The acoustic facilitation layer has an acoustic impedance that is closer to the respective acoustic impedances of the repair patch and the vacuum bag than the acoustic impedance of air is to the respective acoustic impedances of the repair patch and the vacuum bag.

DOWNHOLE SENSOR SYSTEM

The present invention relates to a downhole sensor system, comprising a plurality of sensor units forming a mesh network, providing for a reliable data path even though at least some of the sensor units are out of range from the data collection provided at surface level or at seabed level, wherein each one of said sensor units is positioned in a cemented annulus formed between a casing and a borehole wall, and at least one of said sensor units is provided with a detector for detecting cement characteristics of the cement in the annulus. Furthermore, the present invention relates to a method for providing a downhole sensor system and to a method for determining cement characteristics. 1. A downhole sensor system , comprising:a plurality of sensor units forming a mesh network providing for a reliable data path even though at least some of the sensor units are out of range from the data collection provided at surface or at seabed level, wherein each one of said sensor units is positioned in a cemented annulus formed between a well tubular metal structure and a borehole wall, and at least one of said sensor units is provided with a detector for detecting cement characteristics of the cement in the annulus.2. A downhole sensor system according to claim 1 , wherein cement characteristics comprises acoustic impedance claim 1 , and the detector comprises a transducer for measuring a reflected signal for determining the acoustic impedance.3. A downhole sensor system according to claim 1 , wherein each one of said sensor units are randomly positioned in the cemented annulus.4. A downhole sensor system according to claim 1 , wherein at least one of said sensor units further comprises a sensor module comprising additional sensors.5. A downhole sensor system according to claim 4 , wherein said sensor module comprises a temperature sensor and/or a pressure sensor.6. A downhole sensor system according to claim 1 , wherein each sensor unit is configured to receive wirelessly ...

Methods, systems and computer program products for multi-resolution imaging and analysis

Methods for determining a mechanical parameter for a sample having a target region include generating a tissue displacement in the target region; transmitting tracking pulses in the target region; receiving corresponding echo signals for the tracking pulses in the target region at a plurality of positions; analyzing the echo signals at one or more multi-resolution pairs of the positions and/or acquisition times; and determining at least one mechanical parameter of the target region based on the echo signals at the one or more multi-resolution pairs of positions and/or acquisition times.

METHODS, SYSTEMS AND COMPUTER PROGRAM PRODUCTS FOR SINGLE TRACK LOCATION SHEAR WAVE ELASTICITY IMAGING

Methods, systems and computer program products for determining a mechanical parameter for a sample having a target region using shear wave displacement are provided. The method includes a) generating at least one shear wave with an excitation pulse in the target region at an excitation position; b) transmitting tracking pulses in a tracking region, at least a portion of which is outside the target region; c) receiving corresponding echo signals for the tracking pulses in the tracking region; d) repeating steps A through C for one or more additional excitation positions within the target region, wherein at least two of the excitation pulses overlap and the tracking region associated with each excitation position overlaps with the tracking region associated with at least one other excitation position; and e) determining at least one mechanical parameter of the target region based on at least one parameter of a shear wave displacement. 1. A method for determining a mechanical parameter for a sample having a target region using shear wave displacement , the method comprising:a) generating at least one shear wave with an excitation pulse in the target region at an excitation position;b) transmitting tracking pulses in a tracking region, at least a portion of which is outside the target region;c) receiving corresponding echo signals for the tracking pulses in the tracking region;d) repeating steps A through C for one or more additional excitation positions within the target region, wherein at least two of the excitation pulses overlap and the tracking region associated with each excitation position overlaps with the tracking region associated with at least one other excitation position; ande) determining at least one mechanical parameter of the target region based on at least one parameter of a shear wave displacement from two or more excitation pulses whose excitation positions are in the target region and whose associated tracking regions overlap outside the target ...

ENHANCED CEMENT BOND AND MICRO-ANNULUS DETECTION AND ANALYSIS

Methods and apparatus for inspecting oilfield infrastructure components. Methods include methods of identifying a micro-annulus outside a casing in a cemented wellbore. Methods may include transmitting an acoustic pulse incident on the casing; making a measurement of a first acoustic impedance property value from pulse-echo information generated responsive to an echo of the acoustic pulse reflected from the casing; propagating a circumferential guided wave in the casing; making a measurement of a second acoustic impedance property value from propagating wave information generated responsive to the propagating acoustic wave; and determining from the first acoustic impedance value and the second acoustic impedance value a presence of a micro-annulus between the casing and the cement. 1. A method of identifying a micro-annulus outside a casing in a cemented wellbore , the method comprising:transmitting an acoustic pulse incident on the casing;making a measurement of a first acoustic impedance value from pulse-echo information generated responsive to an echo of the acoustic pulse reflected from the casing;propagating a circumferential acoustic wave in the casing;making a measurement of a second acoustic impedance value from propagating wave information generated responsive to the propagating acoustic wave; anddetermining from the first acoustic impedance value and the second acoustic impedance value a presence of a micro-annulus between the casing and the cement.2. The method of wherein determining the presence of the micro-annulus between the casing and the cement comprises determining a variation metric derived from the first acoustic impedance value and the second acoustic impedance value is greater than a variation metric threshold.3. The method of further comprising determining the variation metric using at least one of: i) a ratio of the first acoustic impedance value and the second acoustic impedance value; and ii) a difference between the first acoustic ...

OBJECT INFORMATION ACQUIRING APPARATUS AND OBJECT INFORMATION ACQUIRING METHOD

This invention employs an object information acquiring apparatus including a probe for receiving, as a received signal, an acoustic wave which is generated within an object irradiated with light and propagates on an object surface, and a processor for generating object information, which is information based on an internal optical characteristic value of the object, by using intensity of the received signal. The processor corrects the intensity of the received signal by using the reflectance upon the acoustic wave entering the probe which is calculated based on the angle of the acoustic wave entering the probe, and on the acoustic impedance and acoustic velocity of the object and the probe. 1. An object information acquiring apparatus , comprising:a probe configured to receive an acoustic wave which is generated by an object irradiated with light and output a time-series signal; anda processor configured to obtain object information for a voxel or pixel by using the time-series signal,wherein said processor is configured to obtain the object information for the voxel or the pixel without using an intensity of the time-series signal which is derived from the voxel or the pixel and which is obtained when an angle of the acoustic wave entering the probe exceeds an upper limit.2. The apparatus according to claim 1 ,wherein said processor is configured to correct an intensity of the time-series signal derived from the voxel or the pixel, by performing correction corresponding to a reflectance loss of the acoustic wave which is obtained according to an angle of the acoustic wave entering said probe, andwherein said processor is configured to obtain the object information at the voxel or the pixel based on the corrected intensity.3. The apparatus according to claim 2 , wherein claim 2 , when a reflectance upon the acoustic wave entering said probe is R and a coefficient is a claim 2 , said processor is configured to perform the correction by dividing the intensity derived ...

ACOUSTIC SENSING THROUGH A BARRIER

The invention provides embodiments of an apparatus and for improved, higher quality and higher resolution acoustic impedance scanning of an object through a barrier. Such acoustic impedance scanning can be employed to obtain biometric information of a person via fingerprint pattern. 1. An apparatus for acoustically scanning a target , comprising:a barrier having a first side and a second side that each face in substantially opposing directions; andan acoustic sensor having a first transmitting side through which acoustic energy is transmitted away from said acoustic sensor, whereinsaid first transmitting side of said acoustic sensor is positioned so that it abuts said first side of said barrier, and positioned so that said acoustic sensor is configured to transmit said acoustic energy through said barrier and towards a target abutting said second side of said barrier,said acoustic sensor is configured to measure acoustic impedance of said target within a measurement time window while simultaneously transmitting said acoustic energy, wherein said measurement time window initiates following an initial transmission of acoustic energy from said acoustic sensor, and terminates no later than upon an occurrence of two round trip travel times, andeach said round trip travel time is an amount of time required for said acoustic energy to transmit from said acoustic sensor to said target and to reflect from said target and arrive back to said acoustic sensor.2. The apparatus of claim 1 , wherein said measurement time window instead initiates after an occurrence of one said round trip travel time after said initial transmission of acoustic energy from said acoustic sensor occurs.3. The apparatus of claim 1 , wherein said measurement time window terminates after an occurrence of one said round trip travel time after said initial transmission of acoustic energy from said acoustic sensor to said target and return to said acoustic sensor.4. The apparatus of claim 1 , wherein said ...

ACOUSTIC IMPACT PARTICLE SIZE MEASUREMENT

Apparatus features a signal processor or processing module configured at least to: receive signaling containing information about acoustic emissions resulting from particles impacting a solid sensor element configured in a process pipe having a process fluid flowing therein, including a slurry; and determine particle sizes of solids in the process fluid, based at least partly on the signaling received. The signal processor module may also be configured to provide corresponding signaling containing information about the particle sizes of solids in the process fluid. 1. Apparatus comprising: receive signaling containing information about acoustic emissions resulting from particles impacting a solid sensor element configured in a process pipe having a process fluid flowing therein, including a slurry; and', 'determine particle sizes of solids in the process fluid, based at least partly on the signaling received., 'a signal processor or signal processing module configured at least to2. Apparatus according to claim 1 , wherein the signal processor or signal processing module is configured to provide corresponding signaling containing information about the particle sizes of solids in the process fluid.3. Apparatus according to claim 1 , wherein the signal processor or signal processing module is configured to determine a particle size distribution of the solids in the process fluid claim 1 , based at least partly on the signaling received.4. Apparatus according to claim 1 , wherein the signaling contains information about particle impacts that generate acoustic impulses in the solid sensor element claim 1 , which acts like a waveguide that transmits acoustic impulse energy to a transducer claim 1 , including an ultrasonic transducer claim 1 , in the solid sensor element.5. Apparatus according to claim 1 , wherein the apparatus comprises the solid sensor element configured with an impact body and a transducer claim 1 , including an ultrasonic transducer claim 1 , so that ...

MICROPHONE SEAL DETECTOR

A device, system and method for determining a seal quality of a sealed environment is provided herein. A seal detection device is utilized to determine a seal quality for an acoustic cavity of a microphone for a mobile device. The seal detection device determines an acoustic impedance at the end of a hollow longitudinal section by propagating a broadband audio signal from a source speaker through the hollow longitudinal section into the acoustic cavity. Located within the hollow longitudinal section is a microphone measurement portion configured to provide an output signal to measurement equipment in order to determine a transfer function between of the microphone measurement portion. Utilizing the transfer function, the seal quality can be determined for the acoustic cavity. 1. A method of validating a seal utilizing a seal detection device coupled to measurement equipment , wherein calibration data from the seal detection device has been collected from the measurement equipment , the method comprising:applying an attachment portion of the seal detection device to a surface surrounding a port of a device under test;acquiring measurement data by the measurement equipment, wherein the measurement data quantifies seal quality parameters; anddetermining a seal quality based on a difference between the measurement data and the calibration data.2. The method of claim 1 , wherein the seal detection device comprises:a hollow longitudinal section including a first distal end and a second distal end and the attachment portion is connected to the first distal end;a source speaker connected to the second distal end and configured to propagate a broadband audio signal into the hollow longitudinal section; anda microphone measurement portion disposed within the hollow longitudinal section.3. The method of claim 2 , wherein after the step of applying the attachment portion claim 2 , the method further comprises:generating the broadband audio signal by the source speaker; ...

STRUCTURAL HEALTH MONITORING SENSORY ARRANGEMENT INTEGRATED WITHIN A SELF-HEALING SYSTEM

An integrated system and method to acquire the health state of a structure identifying the presence of damage, and to self-repair the damage in the considered structure. A sensor network installed in the structure is interrogated by a dedicated hardware for damage detection. In case of damage is detected by the sensor network in the structure, the sensor network is triggered and generates harmonic excitation in the structure. Due to the excitation, the natural frequency of vascular microtubes and/or capsules presented in the structure is reached, promoting their disruption. The vascular microtubes and/or capsules disruption along the damage releases the healing compound, repairing the damaged portion of the structure. 1. A method to assess the condition of and self-repair a structure , comprising:automatically by computer, detecting damage to a structure; andautomatically generating an excitation conditioned on the computer detecting damage, the excitation disrupting components within the structure to release a healing substance that provides self-healing of and thereby repairs the structure.2. The method of wherein the components comprise capsules.3. The method of wherein the components comprise microcontainers.4. The method of wherein the components comprise nanotubes.5. A system for assessing the condition of and self-repairing a structural platform comprising:a Structural Health Monitoring System (SHM) comprising a plurality of transducers, including a plurality of pairs of actuators and sensors, a generator device to excite at least one of said sensors to produce ultrasonic guided waves and a signal processor device to receive the signals reflected from damage identification;a Self-Healing System (SHS) comprising a self-healing material including a matrix of at least one polymer material, wherein a set of capsules are uniformly distributed and embedded in the matrix containing a liquid healing-agent; anda means to integrate the SHM system and the SHS system ...

METHOD AND APPARATUS FOR EVALUATION OF ACOUSTIC ABSORBERS

Provided herein is an acoustic testing method to evaluate the acoustic absorptivity of submicron/nano materials using small samples. Based on the transfer-matrix algorithm, the method establishes correlations among acoustic-related parameters of a large sensor fixture and a small sample holder. We developed a proof-of-principle experimental setup to test absorbers with well-known acoustic behavior to verify accuracy of the method. Finally, we characterize the sound absorption properties of two submicron materials, with one comprising dispersed silver submicron fibers and the other comprising electrospinning submicron fibers. Our results indicate acoustic absorption coefficients can be effectively retrieved using only 1/200 of the amount of materials that are typically required in the standard test. 1. A method for determining at least one acoustic property of a porous material using an acoustic impedance tube having a sound source and at least one sensor , and a primary small sample holder attached to the impedance tube , comprising:positioning a sample of the porous material in the primary small sample holder;{'sub': '3', 'generating sound in the impedance tube, so the sound penetrates into the primary small holder through an opening of the small holder and determining the acoustic impedance Zat a reference plane in the impedance tube away from the opening using the at least one sensor;'}{'sub': eff', 'eff, 'determining complex characteristic impedance Zand wavenumber kof a space between the reference plane and the opening;'}{'sub': eff', 'eff, 'using the impedance Z, wavenumber k, and the acoustic impedance at the reference plane to determine the acoustic impedance at the opening; and'}determining the at least one acoustic property from the acoustic impedance at the opening;{'sub': '2', 'wherein the primary small sample holder has a smaller cross-sectional area than the impedance tube, and there is a space between the reference plane and the opening having a ...

NONDESTRUCTIVE ULTRASONIC ELASTOGRAPHIC IMAGING FOR EVALUATION OF MATERIALS

A method of non-destructive evaluation of mechanical properties of a material using ultrasonic waves in a monostatic configuration is disclosed. The method comprises remotely scanning a sample of the material without directly contacting the sample, measuring an acoustic impedance of the scanned sample, and calculating mechanical properties of the material using the acoustic impedance.

Nanoindenter ultrasonic probe tip and force control

A multimode ultrasonic probe tip and transducer integrated into a micro tool, such as a nano indenter or a nano indenter interfaced with a Scanning Probe Microscope (SPM) is described. The tip component may be utilized to determine mechanical properties or characteristics of a sample, including for example, complex elastic modulus, hardness, friction coefficient, and strain and stress at nanometer scales and high frequencies. The tip component is configured to operate at multi-resonant frequencies providing sub-nanometer vertical resolution. The tip component may be quasi-statistically calibrated and contact mechanics constitutive equations may be utilized to derive mechanical properties of a sample. Contact mechanical impedance and acoustic impedance may also be compared.

다상유동의 유량 및 농도의 동시 결정법

본 발명은 파이프라인을 따라 다상혼합물에 포함된 기체 및 액체상성분의 체적유량 측정과 체적농도 결정을 위한 방법 및 장치에 관한 것이다. 측정은 파이프라인의 내부에 배치되는 한 세트의 국부 음향변환기를 포함하는 초음파시스템으로 수행된다. 변환기의 각 이미터 및 수신기 쌍은 제어상태에 놓이는 매질의 샘플링체적을 형성한다. 혼합물 구성성분에 대한 체적농도는 매질의 샘플링체적을 통한 음향펄스의 통과시간에 의해 결정된다. 혼합물 구성성분에 대한 체적유량은 유동방향에서 서로간에 거리를 갖는 위치에서 직렬로 위치하는 서로 다른 단면적을 구비하는 두 파이프라인 부분에서 상(phase)속도 및 체적농도를 측정함으로써 계산된다.

基于超声结构分层引导的光声内窥定量层析成像方法及其系统

本发明公开了一种基于超声结构分层引导的光声内窥定量层析成像方法及其系统，方法包括下述步骤：图像采集；超声图像中不同声阻抗层的分割及边缘识别，分割超声图像得到相应生理结构分层图像并识别边缘得到位置矩阵；光声图像分层提取，基于所得位置矩阵，对与超声成像同步的光声成像图像中提取对应的各层光声信号；光声图像的参数量化，对定量层析的三维图像中的血管结构特征识别和参数量化。本发明实现对腔体壁内的血管结构定量的分层、提取和量化，有助于腔体壁内血管结构的精确光声数据分析，有望应用于医学影像信息分析等领域。

Structural health monitoring frequency selection method based on ultrasonic guided waves

本发明提供一种基于超声导波的结构健康监测选频方法，首先绘制被测对象的频散曲线，根据频散曲线选择合适的模态，确定实验激励模态；然后采用有限元仿真软件和激光测振仪分别求解共振频率，得到几个待选频率；最后，在实验中依次采用不同频率的激励信号，根据实验结果选出激励信号的频率。本发明优点在于能够将几种结构安全健康监测中常用的选择激励信号频率的方法结合起来，更准确地找到适合结构健康监测的频率，得到更好的监测效果，这对结构安全监测有巨大的意义。

Method for differentiating between burdened and cracked ultrasonically tuned blades

A method for differentiating between ultrasonically tuned blades which are broken or cracked, and blades which are gunked by evaluating measured impedance differences when a system is first excited with a low displacement signal and then with a high displacement signal. The method is performed irrespective of the age of the hand piece/blade, the temperature or specific type of hand piece or blade, and is not affected by self healing effects of slightly cracked blades. Moreover, the method facilitates the quantifiable determination of the amount of gunk on the blade. Absolute impedance measurements of the transducer or blade are unnecessary. Instead, only relative impedance measurements are required, which greatly simplifies the measuring criteria. This provides a way to measure the amount of gunk accumulation, and thereby a way to calculate/estimate the amount of heat generated at the sheath, as well as a way to calculate/estimate the amounts of degradation to the load curve of the ultrasonic system.

Analyzing method of feo from magnetic properties

본 발명은 자기적 성질을 이용하여 고로원료인 소결광내의 FeO 함량을 분석하는 방법에 관한 것으로써, 자기를 이용하여 FeO성분을 분석하는 방법에 있어서 측정시료의 입도를 적절히 제한하고 주파수 차이를 밀도보정함으로써 정확도 및 재현성을 보다 향상시킨 산화철성분의 분석방법을 제공하고자 하는데, 그 목적이 있다. The present invention relates to a method for analyzing the FeO content in the sintered ore as a blast furnace raw material by using the magnetic properties, in the method for analyzing the FeO component using magnetism, appropriately limit the particle size of the measurement sample and density correction of the frequency difference By providing an analysis method of the iron oxide component to further improve the accuracy and reproducibility, the purpose is. 본 발명은 자기를 이용하여 FeO 성분을 분석하는 장치를 사용하여 소결광 분말중의 FeO성분을 분석하는 방법에 있어서, FeO 함량을 알고 있는 표준소결광 분말을 60mesh~400mesh가 되도록 분급하는 단계; 상기와 같이 분급된 표준소결광분말을 충진기로 충진하여 표준소결광시료를 제조한 다음 충진밀도를 측정하는 단계; 상기한 표준소결광 시료를 측정코일센서에 장입하여 발진기에 의해 주파수를 발진하고 주파수 연산기에서 발진주파수와 기준주파수와의 차이를 연산하는 상기 주파수 차이를 상기에서 측정된 충진밀도로 나누어 밀도보정 주파수 차이를 구하는 단계; 상기와 같이 구한 밀도보정 주파수 차이와 FeO 함량과의 상관관계를 구하는 단계; 및 FeO 함량을 측정하고자 하는 소결광 분말에 대해 상기와 같이 밀도보정 주파수 차이를 구한 다음, 상기한 밀도보정 주파수 차이와 FeO 함량과의 상관관계에 대입하여 FeO 함량을 측정하는 단계를 포함하여 구성되는 전기적 성질을 이용한 산화철(FeO) 성분 분석방법을 그 요지로 한다. The present invention provides a method for analyzing the FeO component in the sintered ore powder using a device for analyzing the FeO component using a magnet, comprising the steps of: classifying a standard sintered ore powder having a known FeO content so as to be 60 mesh to 400 mesh; Preparing a standard sintered mineral sample by filling the standard sintered optical powder classified as described above into a filling machine and then measuring the filling density; Insert the standard sintered light sample into the measuring coil sensor to oscillate the frequency by the oscillator, and divide the frequency difference by calculating the difference between the oscillation frequency and the reference frequency in the frequency calculator by the filling density measured above to determine the density correction frequency ...

Normal incident acoustic characteristic measuring apparatus and normal incident acoustic characteristic measuring method

高温における垂直入射音響特性を効果的に測定できる垂直入射音響特性測定装置及び垂直入射音響特性測定方法を提供する。垂直入射音響特性測定装置は、一方の端部に音源が配置され、管内に測定対象の試験体が配置され、前記音源と前記試験体との間に音圧センサが配置される管本体と、前記管本体の前記音源と前記試験体との間の第一の位置で測定される第一の温度に基づき決定された条件で、前記第一の位置を含む第一の管壁部分を加熱する第一の加熱制御部と、前記管本体の前記音源と前記試験体との間であって前記第一の位置より前記音源に近い第二の位置で測定される第二の温度に基づき決定された条件で、前記第二の位置を含む第二の管壁部分を加熱する第二の加熱制御部とを含む。 Provided are a normal incident acoustic characteristic measuring apparatus and a normal incident acoustic characteristic measuring method capable of effectively measuring normal incident acoustic characteristics at high temperatures. The normal incidence acoustic characteristic measuring apparatus includes a tube body in which a sound source is disposed at one end, a test body to be measured is disposed in a tube, and a sound pressure sensor is disposed between the sound source and the test body, The first tube wall portion including the first position is heated under a condition determined based on a first temperature measured at a first position between the sound source of the tube main body and the specimen. Determined based on a second temperature measured at a second position between the first heating control unit and the sound source of the tube body and the test body and closer to the sound source than the first position. And a second heating control unit that heats the second tube wall portion including the second position.

Method for testing scratch resistance of painting film

본 발명은 자동차용 소재로 사용되는 페인트 도막의 내찰상성을 시험하기 위한 방법에 관한 것으로서, 정확도와 재현성을 구현할 수 있는 시험방법을 제공하는데 그 목적이 있다. The present invention relates to a method for testing the scratch resistance of a paint film used as a vehicle material, and an object thereof is to provide a test method that can implement accuracy and reproducibility. 본 발명의 시험방법은 긁힘에 의해 찰상된 시편에서 가장 큰 표면손상부위를 전자제어된 500kHz 미만의 초음파탐촉자로 음향임피던스를 측정하여 찾아내고, 그 부위의 광택유지율을 측정하여 내찰상성을 자동으로 구함으로써, 기존의 시험방법에 비해 안정적이고 정확한 측정결과를 얻을 수 있으며, 또한 시험의 재현성을 구현할 수 있다. The test method of the present invention finds the largest surface damage in the scratched specimens by measuring the acoustic impedance with an ultrasonic probe of less than 500 kHz electronically controlled, and automatically measures the scratch resistance by measuring the gloss retention of the site. By doing so, stable and accurate measurement results can be obtained compared to the existing test methods, and the reproducibility of the test can be realized. 본 발명의 시험방법은 마찰자를 사용하여 시편의 도막 표면을 찰상하는 단계와, 초음파탐촉자로 시편의 표면을 스캔하여 음향임피던스값을 구하는 방식으로 최고 손상부위를 찾는 단계와, 광택계로 최고 손상부위에 대한 광택을 측정한 후 초기 광택과 측정 광택의 광택유지율을 퍼센트(%)로 측정하여 내찰상성을 결정하는 단계를 포함하는 것을 특징으로 한다. The test method of the present invention comprises the steps of scratching the coating film surface of the specimen using a friction ruler, finding the highest damage area by scanning the surface of the specimen with an ultrasonic probe to find the acoustic impedance value, and using a glossmeter And measuring the gloss retention of the initial gloss and the measured gloss by a percentage (%) after determining the gloss of the gloss. 도막, 긁힘, 내찰상성, 초음파탐촉자, 음향임피던스, 광택계 Coating, scratch, scratch resistance, ultrasonic transducer, acoustic impedance, glossmeter

Process for the preparation of polycrystalline silicon

하나 이상의 반응기 내에 존재하는 지지체 상에 다결정질 실리콘을 증착하여 다결정질 실리콘 로드를 얻는 단계, 상기 다결정질 실리콘 로드를 상기 하나 이상의 반응기로부터 설치제거하는 단계, 상기 설치제거된 다결정질 실리콘 로드를 청크로 분쇄하는 단계를 포함하는 다결정질 실리콘의 제조 방법으로서, 상기 하나 이상의 반응기로부터 상기 다결정질 실리콘 로드를 설치제거한 후, 상기 설치제거된 다결정질 실리콘 로드를 청크로 분쇄하기 전에, 로드 형태의 다결정질 실리콘을 하나 이상의 특징에 근거하여 두 개 이상의 품질 등급들로 분류하는 단계를 포함하고, 상기 두 개 이상의 품질 등급들은 별도의 추가적인 가공 단계들로 보내지는 다결정질 실리콘의 제조 방법.

Method and system for determining optimum energy delivery frequency of sealed metal device

本申请涉及密封式金属装置的最佳输能频率的确定方法及系统，具体涉及超声波无线功率传输领域。本申请采用外电路产生频率范围为[f0‑f，f0+f]的扫频信号，由于内部电路的阻抗受外部电路的电压幅值的影响，当外电路产生频率范围为[f0‑f，f0+f]时，第一换能器将电信号转化为振动信号传递到该第二换能器中，当振动信号频率与系统最佳输能频率相同时，此时系统的输入阻抗有突变现象，进而导致与第一换能器电学连接的外电路上的交流电压幅值剧变，通过检测外电路的电压幅值变化趋势；外电路将电压幅值变化趋势转化为离散的数字量；外电路根据预设算法得到离散的数字量的最大值点，并将电压最大值点对应的频率作为最佳输能频率。

Apparatus and method of analyzing feo of iron ore from magnetic properties

본 발명은 자기적 성질을 이용하여 철광석내의 FeO 함량을 분석하는 장치 및 그 방법에 관한 것으로써, 자기를 이용하여 FeO성분을 분석하는 장치에 있어서 항온유지장치를 사용하지않고 복수의 코일을 설치하여 분석장치의 온도의존성을 배제함으로써, 정확도 및 재현성을 보다 향상시킨 산화철성분의 분석장치 및 이를 이용한 분석방법을 제공하고자 하는데, 그 목적이 있다. The present invention relates to an apparatus for analyzing the content of FeO in iron ore using magnetic properties, and to a method for analyzing the FeO component using magnetism, in which a plurality of coils are provided without using a constant temperature holding device. The object of the present invention is to provide an analysis device of iron oxide components and an analysis method using the same, by which the temperature dependence of the analysis device is excluded, thereby improving accuracy and reproducibility. 본 발명은 자기적 성질을 이용하여 철광석중의 FeO 성분을 분석하는 장치에 있어서, 시료용기가 장입되어 투입된 분말 철광석 시료를 충진하도록 구성되는 충진부(21); 상부, 중심부 및 하부로 이루어지고 상기 시료용기가 장입되도록 충진시료 용기 수용부가 형성되어 있는 측정코일센서(22); 공진측정코일이 상기 측정코일센서 중심부의 외부에 권선되어 있는 측정용 발진기(23); 공진 기준코일이 상기 공진측정코일과 인덕턴스, 캐패시턴스가 동일하도록 설치된 기준 발진기(24); 상기 측정용 발진기 및 기준 발진기에서 발진된 주파수의 차이를 연산하는 주파수 연산기; 및 상기와 같이 측정된 주파수 차이와 철광석중의 FeO 함량과의 상관관계를 구하는 컴퓨터를 포함하여 구성되는 자기적 성질을 이용한 철광석중의 산화철(FeO) 분석장치 및 이를 이용한 FeO 성분분석방법을 그 요지로 한다. The present invention provides a device for analyzing the FeO component in iron ore using magnetic properties, comprising: a filling unit 21 configured to fill a powder iron ore sample loaded with a sample container; A measuring coil sensor 22 having an upper portion, a center portion, and a lower portion, and a filling sample container accommodating portion formed therein so as to charge the sample container; An oscillator for measurement in which a resonance measuring coil is wound outside the center of the measuring coil sensor; A reference oscillator 24 having a resonance reference coil installed such that the resonance measurement coil has the same inductance and capacitance; A frequency calculator for calculating a difference between the frequencies oscillated in the measurement oscillator and the reference ...

Determination of geological formation porosity - describes equations and circuit for finding porosity from acoustic impedance

BATTERY OF ACCUMULATORS PROTECTED AGAINST ELECTRIC ARCS

ULTRASONIC METHOD AND DEVICE FOR DETECTION AND IDENTIFICATION OF CONTAMINANT SUCH AS FROST ON THE SURFACE OF A STRUCTURE.

DEVICE FOR DETECTING ANOMALIES BY ACOUSTIC ANALYSIS OF AN AIRCRAFT TURBOMACHINE

L'invention concerne un dispositif (DISP) de détection d'anomalies par analyse acoustique d'une turbomachine (TURBO) d'aéronef (AERO), caractérisé en ce qu'il est non embarqué et qu'il comporte : - Au moins un module (MOD) mobile comportant : o des moyens d'acquisition (MDAC) directionnels de signaux acoustiques de la turbomachine (TURBO) ; o des moyens de traitement (MDTT) desdits signaux, adaptés pour générer un rapport d'endommagement (RAP_END) ; o des moyens de transmission (MDTM) dudit rapport d'endommagement (RAP_END) ; - un serveur (SERV) apte à échanger des données avec le au moins un module (MOD), ledit serveur (SERV) comportant : o des moyens de réception (MDR) du rapport d'endommagement (RAP_END) ; o des moyens de stockage (MDS) adaptés pour stocker ledit rapport d'endommagement (RAP_END). The invention relates to a device (DISP) for detecting anomalies by acoustic analysis of an aircraft turbomachine (TURBO) (AERO), characterized in that it is not loaded and comprises: - At least one mobile module (MOD) comprising: o Acoustic signal acquisition means (MDAC) for the turbomachine (TURBO); o processing means (MDTT) of said signals adapted to generate a damage report (RAP_END); o transmission means (MDTM) of said damage report (RAP_END); a server (SERV) able to exchange data with the at least one module (MOD), said server (SERV) comprising: receiving means (MDR) for the damage report (RAP_END); storage means (MDS) adapted to store said damage report (RAP_END).

Iron Oxide (FeO) Component Analysis in Iron Ore Using Magnetic Properties and Analysis Method Using the Same

본 발명은 자기적 성질을 이용하여 철광석내의 FeO 함량을 분석하는 장치 및 그 방법에 관한 것으로써, 자기를 이용하여 FeO성분을 분석하는 장치에 있어서 항온유지장치를 사용하지않고 복수의 코일을 설치하여 분석장치의 온도의존성을 배제함으로써, 정확도 및 재현성을 보다 향상시킨 산화철성분의 분석장치 및 이를 이용한 분석방법을 제공하고자 하는데, 그 목적이 있다. 본 발명은 자기적 성질을 이용하여 철광석중의 FeO 성분을 분석하는 장치에 있어서, 시료용기가 장입되어 투입된 분말 철광석 시료를 충진하도록 구성되는 충진부(21); 상부, 중심부 및 하부로 이루어지고 상기 시료용기가 장입되도록 충진시료 용기 수용부가 형성되어 있는 측정코일센서(22); 공진측정코일이 상기 측정코일센서 중심부의 외부에 권선되어 있는 측정용 발진기(23); 공진 기준코일이 상기 공진측정코일과 인덕턴스, 캐패시턴스가 동일하도록 설치된 기준 발진기(24); 상기 측정용 발진기 및 기준 발진기에서 발진된 주파수의 차이를 연산하는 주파수 연산기; 및 상기와 같이 측정된 주파수 차이와 철광석중의 FeO 함량과의 상관관계를 구하는 컴퓨터를 포함하여 구성되는 자기적 성질을 이용한 철광석중의 산화철(FeO) 분석장치 및 이를 이용한 FeO 성분분석방법을 그 요지로 한다.

Nondestructive ultrasonic elastographic imaging for evaluation of materials

A method of non-destructive evaluation of mechanical properties of a material using ultrasonic waves in a monostatic configuration is disclosed. The method comprises remotely scanning a sample of the material without directly contacting the sample, measuring an acoustic impedance of the scanned sample, and calculating mechanical properties of the material using the acoustic impedance.

Detection of delamination of rubber covers from metal substrates

The bonding of an elastomeric cover (22) to a metal roll (20) is tested by transmitting audible frequency waves through the compliant roll cover and receiving the waves at a transducer (38) mounted to the underlying steel rol l. The resulting signal may be analyzed by a technician listing to the audio frequencies transmitted. The audio range of frequencies employed may be abou t 5000 Hz. The elastomeric material such as rubber does not transmit sound without considerable loss of amplitude, whereas sound travels at high speed through steel with little attenuation. A sound transmitter (28) is spirally scanned along the rubber-covered surface of the roll, transmitting into the steel roll directly beneath the sound transmitter and throughout the roll. Sound is detected at a transducer (38) mounted at the roll ends. Any failure or significant variation in the roll/cover bond is detected by the effect on the quality of sound transmitted through the rubber steel interface.

Ultrasonic transmission device and wave control method

The present invention relates to an ultrasonic transmission device and a wave control method, and, more specifically, to an ultrasonic transmission device capable of transmitting an ultrasonic wave through an obstruction, and a wave control method.

Subject information acquisition apparatus and subject information acquisition method

For detecting abnormal apparatus and method by the acoustic analysis of aircraft turbine engines

本发明涉及用于通过声学分析检测航空器(AERO)涡轮发动机(TURBO)中异常的装置(DISP)，其特征在于：它不是机上装置和它包括：至少一个移动模块(MOD)，包括：从涡轮发动机(TURBO)获取声学信号的定向装置(MDAC)；处理所述信号的装置(MDTT)，其适于产生损坏报告(RAP_END)；传输所述损坏报告(RAP_END)的装置(MDTM)；能够与至少一个模块(MOD)交换数据的服务器(SERV)，所述服务器(SERV)包括：接收损坏报告(RAP_END)的装置(MDR)；和适于存储所述损坏报告(RAP_END)的存储装置(MDS)。

Non-destructive detection method of foreign matter in medium using ultrasonic waveform

Robot cleaner and control method thereof

提供一种机器人清洁器。一种机器人清洁器包括：清洁器主体；被配置为供应电力的电池；存储器，其被配置为存储与配置空间的多个子空间中的每一个相对应的地面材料信息，以及处理器，其被配置为基于与多个子空间中的每一个相对应的地面材料信息来识别与多个子空间中的每一个相对应的清洁模式、基于所识别的清洁模式和电力的余量来识别多个子空间中的每一个的优先顺序，以及基于识别的优先顺序来设置机器人清洁器的移动路径。

Control valve monitoring system

A control valve monitoring system is disclosed. The control valve monitoring system includes at least one sensor connected to one of a valve stem or valve shaft, and the at least one sensor detects a change in mechanical integrity of one of the valve stem or valve shaft. A device for providing data regarding the change in mechanical integrity of one of the valve stem or valve shaft is provided, allowing maintenance of the valve shaft or valve stem to be conducted in an efficient manner.

Fuel oil container

Signal processing system and methods

Embodiments relate to a signal processing system and method in particular for determining the location of a feature within a hollow body using deconvolution of measured acoustic waves.

Shear type vibration-ultrasonic composite sensor and measuring device

本发明公开了一种剪切式振动‑超声复合传感器及测量装置，剪切式振动‑超声复合传感器中，金属匹配层包括设在下表面的绝缘层和设在上表面的支撑柱，金属匹配层经由绝缘层接触待测对象，第一厚向压电元件的第一负极表面贴合金属匹配层一侧，其第一正极表面与第二厚向压电元件的第二正极表面贴合，第二负极表面贴附背衬块的第一表面，背衬块的第二表面设有金属外壳。厚向压电元件的第一、二正极表面连接超声信号输出接口以输出超声信号。振动基座可拆卸连接支撑柱，第一、二切向压电元件的第一、二负极表面均与振动基座一侧贴合，第一、二正极表面分别与第一、二质量块贴合。第一、二质量块均连接振动信号输出接口以输出振动信号。

Signal processing systems and methods

Embodiments relate to a signal processing system and method in particular for determining the location of a feature within a hollow body using deconvolution of measured acoustic waves.

Object information acquiring apparatus and object information acquiring method

This invention employs an object information acquiring apparatus including a probe for receiving, as a received signal, an acoustic wave which is generated within an object irradiated with light and propagates on an object surface, and a processor for generating object information, which is information based on an internal optical characteristic value of the object, by using intensity of the received signal. The processor corrects the intensity of the received signal by using the reflectance upon the acoustic wave entering the probe which is calculated based on the angle of the acoustic wave entering the probe, and on the acoustic impedance and acoustic velocity of the object and the probe.

Simplified impedance plane bond testing inspection by ultrasonic means

ULTRASONIC IMPEDANCEMETRIC PROBE WITH SOLID WAVE OR SOLID-LIQUID PROJECTED GUIDES

L'invention concerne un dispositif et un procédé ultrasonore de mesure, d'inspection et de classification des propriétés mécaniques et/ou thermiques d'un milieu (60, 61, 62, 63, 64, 65, 100), au moyen d'au moins une source large bande (20, 21, 22, 250, 260, 270, 280, 290, 540) d'ondes acoustiques couplées à au moins un guide (10, 17, 18, 150) solide à ondes élastiques d'impédance et d'effusivité connues, logé et amorti (43, 44, 55) dans une structure isolante (41, 42, 52) acoustiquement et thermiquement et couplé avec le milieu sur une surface déterminée (11, 14, 15, 16) avec une force (F) d'appui contrôlée (80,81), le dit couplage pouvant résulter d'un premier couplage (92) du guide solide à un guide liquide projeté en continu avec une pression hydrostatique constante ou variable, le dit liquide pouvant également être chauffé et projeté par intermittence, sous la forme d'un jet collimaté (93) percutant la surface du milieu. Les applications concernent le contrôle non destructif, le diagnostic médical, la classification de la qualité des aliments, la sidérurgie, ainsi que la vélocimétrie directionnelle. The invention relates to an ultrasonic device and method for measuring, inspecting and classifying the mechanical and / or thermal properties of a medium (60, 61, 62, 63, 64, 65, 100) by means of at least one broadband source (20, 21, 22, 250, 260, 270, 280, 290, 540) of acoustic waves coupled to at least one wave elastic solid waveguide (10, 17, 18, 150) impedance and effusivity, housed and damped (43, 44, 55) in an insulating structure (41, 42, 52) acoustically and thermally and coupled with the medium on a given surface (11, 14, 15, 16) with a controlled bearing force (F) (80,81), said coupling being able to result from a first coupling (92) of the solid guide to a liquid guide projected continuously with a constant or variable hydrostatic pressure, said liquid being able to It is also intermittently heated and sprayed in ...

Method for extracting diagnostic signal from sound signal, and apparatus using the same

사운드 신호에서 진단 신호를 추출하는 진단 장치로서, 입력 사운드 신호를 진단 신호 구간과 소음 신호 구간으로 분리하는 신호 분리부, 상기 진단 신호 구간의 제1신호와 상기 소음 신호 구간의 제2신호의 상관 관계를 기초로 소음 감쇄 정도를 조절하는 제1 파라미터를 설정하는 소음 제거 파라미터 설정부, 그리고 상기 제1 파라미터를 기초로 상기 진단 신호 구간에 포함된 소음 신호를 감쇄하여 진단 신호를 추출하는 신호 추출부를 포함한다. A diagnostic apparatus for extracting a diagnostic signal from a sound signal, the diagnostic apparatus comprising: a signal separator for separating an input sound signal into a diagnostic signal section and a noise signal section; a correlation between a first signal of the diagnostic signal section and a second signal of the noise signal section And a signal extracting unit for extracting a diagnostic signal by attenuating a noise signal included in the diagnostic signal section on the basis of the first parameter do.

Detection of delamination of rubber covers from metal substrates

The bonding of an elastomeric cover to a metal roll is tested by transmitting audible frequency waves through the compliant roll cover and receiving the waves at a transducer mounted to the underlying steel roll. The resulting signal may be analyzed by a technician listing to the audio frequencies transmitted. The audio range of frequencies employed may be about 5000 Hz. The elastomeric material such as rubber does not transmit sound without considerable loss of amplitude, whereas sound travels at high speed through steel with little attenuation. A sound transmitter is spirally scanned along the rubber-covered surface of the roll, transmitting into the steel roll directly beneath the sound transmitter and throughout the roll. Sound is detected at a transducer mounted at the roll ends. Any failure or significant variation in the roll/cover bond is detected by the effect on the quality of sound transmitted through the rubber steel interface.

Sound absorption coefficient testing system and method and vehicle

本申请涉及一种吸声系数测试系统、方法以及车辆。所述系统包括：传声装置，设置于测试管道内，用于将未被吸音材料吸收的声波转化成声信号，其中，所述吸音材料设置于所述测试管道的侧壁；风速检测装置，设置于所述测试管道内，用于检测所述测试管道内流体载荷的流速；处理装置，分别与所述传声装置和风速检测装置连接，用于接收所述传声装置传输的声信号和所述风速检测装置传输的流体载荷的流速，并对所述声信号进行快速傅里叶变换，以确定吸音材料在不同流速流体载荷作用下的吸声系数。上述系统能够提高测试精度、便捷以及降低成本。

Methods, systems and computer program products for single track location shear wave elasticity imaging

Methods, systems and computer program products for determining a mechanical parameter for a sample having a target region using shear wave displacement are provided. The method includes a) generating at least one shear wave with an excitation pulse in the target region at an excitation position; b) transmitting tracking pulses in a tracking region, at least a portion of which is outside the target region; c) receiving corresponding echo signals for the tracking pulses in the tracking region; d) repeating steps A through C for one or more additional excitation positions within the target region, wherein at least two of the excitation pulses overlap and the tracking region associated with each excitation position overlaps with the tracking region associated with at least one other excitation position; and e) determining at least one mechanical parameter of the target region based on at least one parameter of a shear wave displacement.

Method and apparatus for ultrasonic pipeline inspection

A method and an apparatus are provided for measuring the wall thickness of a pipeline through which a fluid flows, the pipeline having an interior and exterior surface. The apparatus has a pig body supported by elastomeric cups to thereby cause the pig body to move by fluid flow through the pipeline. The pig body supports a plurality of multi-element transducers. Each transducer is made up of a large number of independent elongated rod-like crystal elements separated by a polymer, each having side walls, a front face and a bottom face. The rod-like elements are arranged so that the side walls are adjacent but mechanically isolated from each other, such as by an epoxy, with the front faces and bottom faces providing transducer front and bottom surfaces. A front metallic film and a bottom metallic film are applied to the front and the bottom surfaces. Each transducer is configured to have an impedance that closely matches the impedance of the pipeline fluid. Each transducer is activated by periodic electrical pulses to cause transmission of an acoustic signal in the pipeline fluid that are reflected by the pipeline interior and exterior walls. A plurality of multiple ultrasonic reflections from the pipe interior and exterior walls for each ultrasonic pulse produced by each transducer is analyzed employing a software algorithm embedded in the electronics within the pig body to provide a measurement of pipe wall thickness. By means of an odometer attached to the pig body, electrical signals are provided that reveal anomalies in the wall thickness of the pipeline relative to the distance traveled by the pig body so that an operator can thereby determine the location in the pipeline wall thickness anomalies.

Ultrasonic method and apparatus for detecting and identifying contamination such as ice on the surface of a structure

A method and an apparatus for detecting and identi-fying a contaminant, such as ice, on the surface of a structure, such as a wing, are disclosed. The apparatus has a probe having a delay block with an interface apt to be placed flush with the surface of the structure and two faces at the same angle of inclination relative to the interface and having transmission and reception trans-ducers each oriented perpendicularly to one of the faces. The block has an acoustic impedance lying in the range of 0.7 to 3 x 10 6 kg/m2.s. It further has an energization and analysis unit for applying an electrical energization pulse to the transmission transducer and comparing the amplitude and the phase of the echo from the interface with a reference echo corresponding to no contamination.

Apparatus and method for improved acoustic sensitivity

The present teaching relates to method, system and implementation of an acoustic sensing. The acoustic sensing apparatus provides for improved acoustic sensitivity and can be applied for acoustic scanning through a barrier. Such acoustic scanning can be employed to obtain biometric information of a person via fingerprint pattern.

Complex elasticity or shear modulus evaluation method for thin polymer layer

The elasticity or shear modulus of a thin layer is evaluated by attaching a mechanical resonator to the thin layer, caused to oscillate at the characteristic frequency, with measurement of the effective acoustic impedance of the thin layer and the effective acoustic impedance of a double layer provided by the measured layer and a layer with a known acoustic impedance. The obtained acoustic impedance measurements are used for providing the characteristic acoustic impedance of the measured layer, used for calculating the complex elasticity and shear modulus.

Ultrasonic characteristic measuring method, acoustic anisotropy measuring method, and acoustic anisotropy measuring apparatus

Ultrasound probe and ultrasound apparatus

Provided is an ultrasound probe, including: a transmitting unit that transmits an ultrasound wave in response to an input of a transmitting signal which is an electric signal; a receiving unit that generates a receiving signal by converting a reflected wave of the transmitted ultrasound wave into an electric signal; an amplifying unit that amplifies the receiving signal; and a signal switching unit that interrupts the amplifying unit, while the transmitting signal is being transmitted and connects the amplifying unit while the transmitting signal is not transmitted.

Ultrasonic logging methods and apparatus for automatically calibrating measures of acoustic impedance of cement and other materials behind casing

Methods and apparatus for in situ, continuous, automatic, and real-time acoustic impedance calibration of a transducer in an acoustic logging system. By taking the frequency characteristics of the ultrasonic transducer which are present in the internal casing reflection and convolving them with the frequency characteristics of the casing being logged, a theoretical model is created with a theoretical acoustic impedance fluid producing a theoretical free pipe signal at each measure point. The measured signal is then compared to the theoretical free pipe signal thereby yielding a calibrated acoustic impedance value for at each measure point. The only model employed is in the theoretical calculation of spectrum characteristics of free pipe.

Equipment failure prediction system and method using sound signal of ultrasonic band

본 발명은 초음파 대역을 이용한 설비 고장 예측 시스템 및 그 방법에 관한 것이다. 본 발명의 일례에 따른 초음파 대역을 이용한 설비 고장 예측 시스템은 설비에 인접하여 위치하는 감지 센서; 및 상기 음파 신호로부터 추출된 샘플링 데이터가 정상 신호인지 이상 신호인지 여부를 판별하여 복수의 판별 정보를 생성하고, 이상 신호로 핀별된 이상 신호 판별 정보에 대응되는 샘플링 데이터를 분석하여 이상 신호 분석 정보를 생성하고, 상기 복수의 판별 정보 중 상기 정상 신호로 핀별된 정상 신호 판별 정보와 상기 이상 신호 분석 정보에 대한 패턴을 분석하여 상기 설비에 대한 고장 예측 정보를 제공하는 서버;를 포함한다. 또한, 발명의 일례에 따른 초음파 대역을 이용한 설비 고장 예측 방법은 샘플링 데이터가 정상 신호인지 이상 신호인지 판별하여 핀별하여 라벨링(Labeling) 정보를 생성하여 저장하는 신호 판별 단계; 이상 신호 판별 정보에 대응하는 샘플링 데이터를 입력받아 분석하여, 이상 신호 분석 정보를 출력하는 이상 신호 분석 단계; 및 정상 신호 판별 정보와 상기 이상 신호 분석 정보로부터 상기 설비 고장의 패턴을 분석하는 패턴 분석 단계;를 포함할 수 있다. The present invention relates to a facility failure prediction system and method using an ultrasonic band. A facility failure prediction system using an ultrasonic band according to an example of the present invention includes a detection sensor positioned adjacent to a facility; and determining whether the sampling data extracted from the sound wave signal is a normal signal or an abnormal signal to generate a plurality of discrimination information, and analyzing the sampling data corresponding to the abnormal signal discrimination information pinned to the abnormal signal to obtain abnormal signal analysis information. and a server that generates and analyzes a pattern of the normal signal determination information pinned to the normal signal among the plurality of determination information and the abnormal signal analysis information to provide failure prediction information for the equipment. In addition, a method for predicting equipment failure using an ultrasonic band according to an example of the present invention includes a signal determination step of determining whether sampling data is a normal signal or an abnormal signal, generating and storing labeling information for each pin; an abnormal signal analysis step of receiving and analyzing sampling data corresponding to the abnormal signal discrimination information, and outputting abnormal signal analysis ...

Simultaneous determination of multiphase flowrates and concentrations

The present invention relates to a method and a device for measuring volume flow rates of liquid phase components and gas and determinating their volume concentrations in a multiphase mixture along a pipeline. Measurements are executed with an ultrasonic system which includes a set of local acoustic transducers arranged in the interior of the pipeline. Each pair of an emitter and a receiver of the transducer forms a sampling volume of a medium being under control. Volume concentrations of mixture components are determined by timing of pas- sage of acoustic pulses through the sampling volume of the medium. Volume flow rates of the mixture components are calculated by measur- ing phase velocities and volume concentrations in two pipeline divisions with different cross-section areas located in series at a distance one from the other in flow direction.