A SINGLE-AXIS OR MULTI-AXIAL APPARATUS FOR DYNAMIC TESTS ON LARGE STRUCTURES

HäRTEMESSGERäT MIT EINEM GEHäUSE UND EINEM EINDRINGKöRPER, INSBESONDERE HANDGERäT

Striking mechanism for material testing

The striking mechanism is used for material testing and for this purpose has an arrangement for measuring the time course of the force exerted on a test-piece (1) by a striking mass (7). This arrangement consists of a grid (10) which is firmly connected to the striking mass (7) and forms distance increments in the direction of movement of the striking mass (7), and of an arrangement (9) which scans the grid (10) and is intended for recording the time intervals required by the striking mass (7) to pass through the distance increments. There is provided for the striking mass (7) a guide (4) in which the striking mass can be displaced only along a rectilinear horizontal path or a path inclined slightly relative to the horizontal. The guide (4) extends between a catapult mechanism (5) which is provided for accelerating the striking mass (7) up to a speed which is desired for the blow, on the one hand, and the test-piece (1), on the other hand. The two resultants of the forces accelerating or ...

VERFAHREN UND ANORDNUNG ZUR ZERSTÖRUNGSFREIEN KLASSIFIKATION

Apparatus and method for testing materials

DEVICE FOR THE DÜRCHFÜHREN OF IMPACTS WITH LOW SPEED ON MECHANICAL STRUCTURES

VERFAHREN ZUR QUANTITATIVEN CHARAKTERISIERUNG DES VERHALTENS VON ORGANISCHEN BESCHICHTUNGEN BEI STEINSCHLAGARTIGER BEANSPRUCHUNG UND ANORDNUNG ZUR DURCHFUEHRUNG DES VERFAHRENS

Tree Stem Or Log Appraising Apparatus

CALIBRATION IMPACT HAMMER

An instrumented hammer that gives the operator a measurement of the impact energy of each hammer blow. A head or main body portion slidably receives an inertia rod spring mounted in a longitudinal bore therein. Upon striking a surface, momentum causes movement of the rod forward against the spring pressure. A slot on the rod movesthrough an optical switch which emits a signal relative to the movement of the slot therethrough. A display assembly receives the signal and calculates the impact energy of the hammer blow.

SHOCK TESTING APPARATUS AND METHOD

A shock testing apparatus comprising: an impact table for supporting an object to be tested; a tank; at least one float; one or more airguns; wherein the at least one float is arranged to float upon a fluid held within the tank and is movable within the tank to impact the impact table in response to the firing of the one or more airguns.

MULTI-AXIAL MACHINE FOR DYNAMIC TESTS ON LARGE STRUCTURES

SPLIT HOPKINSON BAR TESTING APPARATUS

The figure shows compression wave generation apparatus (101) to the left of split Hopkinson pressure bar (102) including input bar (103) connected via test specimen (104) to output bar (105). Compression wave (106, 107) is generated by initially placing impactor bar (109) under a pre-load force by hydraulic actuator (108) (in the direction of arrow A) until fragile component (110) ruptures causing end (109a) to impact input end (103a) of the input bar (103). End (109a) is guided and held adjacent end (103a) by collar (111) welded to end (109a) prevented from movement to the left by blocking system (112).

METHOD AND ARRANGEMENT FOR NONDESTRUCTIVE CLASSIFICATION

Method and device for nondestructive determination of rigidity, strength and/or structural properties of preferably oblong and/or plate-shaped objects (11), alternatively determination of the geometrical dimensions of the object, through impact excitation and registration of resonance frequencies of natural modes of the object. According to the invention resonance frequency from at least one of the natural modes of the object is used, which resonance frequency is achieved by bringing the object (11) in vibration by means of a stroking body (24, 31, 38), and substantially controlling the initiation of the motion of the stroking body (24, 31, 38) and subsequent physical impact in time and space by motion of the object (11).

Procédé et appareil pour la mesure du travail d'un objet de choc se déplaçant à grande vitesse, en particulier du travail de rupture d'un rail.

Registriervorrichtung für Hämmer zur Prüfung der Festigkeitseigenschaften von Festkörpern

Hydraulisch betätigtes Dauerschlagwerk für die Werkstoffprüfung

Vorrichtung zur Simulierung der Druckwirkung von Stosswellen bei Kernexplosionen

Einrichtung zur Erzeugung energiereicher Druckstösse für die dynamische Druckprüfung von geschlossenen Hohlkörpern

Vorrichtung zur Überwachung der Stösse an Schwingungsmaschinen

Machine pour essais de traction

PROCEDURE AND DEVICE FOR EXAMINING THE GUETE OF THE KEYING OF THE NUTENTEILIGEN COIL OF THE STATOR OF AN DIRECT CURRENT GENERATOR-ELECTRICAL MACHINE.

Procedure and apparatus for the measurement of the dynamic characteristics of a impact Accelerometers.

INSPECTION FIXTURE WITH ACCELERATION PIPE.

Device test paper

automatic elastometer with percussion at temperature programmed in a wide field

석영유리도가니의 파괴 검사 방법 및 양부 판정 방법

... 실제 사용 상황에 될 수 있는 한 가까운 상태에서 검사할 수 있는 석영유리도가니의 파괴 검사 방법 및 양부 판정 방법을 제공한다. 본 발명에 의한 석영유리도가니의 파괴 검사 방법은, 그래파이트 서셉터(2)에 지지되는 실리콘 단결정 인상용 석영유리도가니(1)의 내표면에 오토 센터 펀치(10)의 끝단부를 누르면서 오토 센터 펀치(10)를 통하여 내표면의 한점에 순간적으로 하중을 가하였을 때의 내표면의 균열 상태를 평가한다.

Apparatus and method for impact test

SNAP BUTTON DEVICE FOR NON-DESTRUCTIVE CHARACTERIZATION OF MATERIALS

A device for nondestructive viscoelastic characterization of materials, comprising: a tubular shell, having inside a through-recess provided with at least a first and a second shrinkage; a first rod, provided with a base of ferromagnetic material (), sliding inside said shell between a first position, in which said ferrule does not project to the lower base of said shell, and a second position, in which said ferrule projects to said lower base; a first spring configured to push said ferrule outwards; a displacement sensor configured to read the displacement of said first rod; a button, sliding between a stroke greater than the one of said first rod, and integral to a second rod provided with a magnet and coaxial to said first rod; a second spring. 1. A device for nondestructive viscoelastic characterization of materials , comprising:{'b': 1', '19', '5', '1, 'a tubular shell (), almost cylindrically shaped and such dimensioned that it can be grasped by hand, having inside a through-recess provided with at least a first shrinkage () provided inside the axial development of said inner recess and a second shrinkage () provided at the upper base of said shell ();'}{'b': 2', '18', '11', '8', '1', '11', '12', '1', '11', '12', '20', '11', '2', '12, 'a first rod () provided at an end with a cap () and a ferrule () projecting to the same, and at the other end with a base of ferromagnetic material (), fastened so that it can slide inside said shell () between a first position, in which said ferrule () does not project to the lower base () of said shell (), and a second position, in which said ferrule () projects to the said lower base (); a first spring () configured to push said ferrule () of said rod () outwards, from the side of said lower base ();'}{'b': 10', '2', '1', '3', '1', '2', '21', '2', '21', '2', '7, 'a displacement sensor () configured to read the displacement of said first rod () while sliding along the tubular shell (); a button () sliding between a first and a ...

Projectile guide track

A projectile guide track having a plurality of track assemblies in aligned relationship with one another. Each track assembly contains fixedly spaced rails for supporting a projectile during flight while undergoing testing in a ballistic range. Precision machining allows for a plurality of different sized rails to be used with a plurality of track assemblies thereby accommodating projectiles of various dimensions.

Gas gun fixture to evaluate blast wave on target sample

A test fixture is provided for mounting a sample to a gas gun. The fixture includes a gun barrel mount including an annular enclosure with first and second axial ends, and a sample platform. The mount connects to the gas gun at the first end. The sample platform includes a tubular component having third and fourth axial ends, a pusher disk, an end plate, and a flange. The disk supports the sample and mounts to the end plate. The flange removably attaches to the component at the third end. The end plate removably attaches to the component at the fourth end and to the enclosure at the second end.

Methods and apparatus for high frequency impact testing

An impact testing system for determining the shock response of a test structure includes a mass (e.g., a spherical steel ball) and a potential energy storage system (e.g., a spring-loaded mechanism) configured to store mechanical energy and, upon actuation, release the stored mechanical energy in the form of kinetic energy. A hold-and-release mechanism (such as a permanent magnet) is configured to releasably couple the mass to the potential energy storage system and impart linear momentum to the mass in connection with the kinetic energy such that the mass impinges upon the test structure. The shock response can then be determined and displayed to a user.

Tension impact test machine for the sudden stressing of tensile specimens, preferably made of plastics

Tension impact tests on tensile specimens are preferably carried out using pendulum-type impact testing machines or hydraulic tensile testing machines. In doing so, a mass - pendulum or piston - is accelerated to a defined extension rate which is given by the construction or can be set, is linked to a follower attached to the free part of the specimen, and as a result the specimen is stretched or ruptured. The linking action often gives rise to rebounds which are superimposed on the force signal and make accurate analysis impossible. This drawback is overcome by the tension impact test machine filed, by the piston (10) of the tension impact test machine being designed so as to be extremely light and being linked directly to the specimen (14) without a follower, Fig. 1. The piston (10) is accelerated by a proportioning piston (5) which at a preset speed penetrates a pressure chamber (8) arranged above the piston (10), shuts off said pressure chamber abruptly, thereby generating a sudden ...

Prüfeinrichtung zum mechanischen Belasten eines Prüfkörpers.

Accelerator and method of accelerating an object

Improvements in apparatus for measuring the work done by impact members

... 516,534. Testing physical qualities of materials. SOC. ANON DES HAUTS-FOURNEAUX DE LA CHIERS. June 23, 1938, No. 18699. Convention date, Feb. 18. [Class 106 (ii)] ] Relates to impact means for determining the resistance to fracture of a test piece, and consists in mounting the inertia member for movement along a guide rod to which it is locked at the end of its movement by a number of pawls which can be released to enable the inertia member to resume its normal position relatively to the impact member by means of turning a ring to disengage the pawls against the action of resilient means. A head 1 preferably of duralumin locks the apparatus on the tup and then acts as an impact member. A guide rod 2 fixed to the head is surrounded by a spring 3 attached at one end 4 to the head and at the other to weight 5. When the head is arrested by the impact device 11, the weight extends the spring the pawls 6 slipping over helical threads 8 on the rod 2 and holding the weight in the position reached ...

Impact assembly with at least two impact generating devices

An impact assembly 2 including an impact platform 22 and at least two impact generating devices 24, 26 for sequentially impacting the platform is provided. The impact generating devices 24, 26 are disposed adjacent to each other in pair and detachably mounted to the impact platform 22. Each of the impact generating devices 24, 26 has a housing 242, 262 and an impact generating unit 244, 264. The housing 242, 262 is adapted to form a compartment 246, 266 where the impact generating unit 244, 264 is disposed. The impact generating units 244, 264 of the at least two impact generating devices 24, 26 provide at least two impact forces to the impact platform 22 according to at least two corresponding timings. The first impact generating device may provide a first impact force according to a first timing, and the second impact generating device may provide a second impact force according to a second timing, so the impact generating devices alternately impact the platform. The directions of the ...

Measuring static and dynamic material characteristics

There is described a measuring method for static and dynamic material characteristics in which to that material the above-defined characteristics of which are to be measured, there is applied by means of a force F, a constant predetermined deformation by compression or pressing-in and the deformation is retained for at least 10 seconds and preferably at least 15 seconds, whereby the building-up of force F from a moment zero which corresponds to that time where the force is applied, and the decrease thereof after said constant deformation has been reached, is measured as a function of the time, and the material characteristics are determined from suitable formulas.

PROCEDURE FOR EXAMINING THE GUETE OF THE KEYING OF THE NUTENTEILIGEN COIL OF THE STATOR OF AN DIRECT CURRENT GENERATOR-ELECTRICAL MACHINE.

FIXED BEAM HIGH-G SHOCK PULSE GENERATOR APPARATUS AND METHOD

Method and arrangement for nondestructive classification

Device for measuring the dynamic stress/strain response of ductile materials

DEVICE FOR MEASURING THE DYNAMIC STRESS/STRAIN RESPONSE OF DUCTILE MATERIALS A method and apparatus for measuring a dynamic tensile stress and/or tensile strain response of a material such as an elastic material and/or a ductile material. The apparatus may include a striker bar (104), a stretcher bar (106), and a drive assembly (114) configured to propel the striker bar (104) toward the stretcher bar (106). The apparatus may further include a stationary specimen mount (132) and a movable specimen mount (134) that receive a test sample. The striker bar (104) and the stretcher bar (106) of the apparatus may provide a continuous stress on the test sample and an accurate tensile stress/strain measurement. 1'CA A1C 1 (00 co (00 (ND cco ...

APPARATUS FOR TESTING STRUCTURAL COMPONENT SAMPLES BY IMPACTING WITH ICE BALLS

An ice ball launcher simulates the impact of a storm-generated hail stone falling onto a test specimen or structural component exhibit such as a roofing shingle, skylight, automobile panel, aircraft fuselage panel, aircraft wing panel and the like. The launcher includes a tripod base, a rail, a sled, an ice ball holder cup, a manually operable trigger latch assembly, an elastic band and a laser beam-aiming device. The ice ball launcher consistently and repeatably projects ice balls at a predetermined velocity and impact energy onto the component sample. The velocity of each ice ball is measured as it transits from the ice ball launcher to the installation mockup, verifying that the ice ball velocity is within a predetermined velocity tolerance range. The measured velocity and known mass of the ice ball are used to calculate the kinetic impact energy on the component sample material.

NON-DESTRUCTIVE EVALUATION OF GEOLOGICAL MATERIAL STRUCTURES

A portable system for non-destructive evaluation of geological material structures comprises an impact device which impacts a spherical surfaced member against the surface of the structure. A vertical displacement transducer and a horizontal displacement transducer detect reflected signals from an interface of the structure, the signals being processed to give a indication of the depth of the interface from the surface of the interface a nd also provide an evaluation of the physical properties of the structure.

Process and device of measurement of the resistance to the endurance with the shock

Device to produce impulses of pressure of great energy for a dynamic check, with the pressure, hollow bodies closed

Process and apparatus to determine the impact resistance

DEVICE FOR CARRYING OUT A BIAXIAL TENSILE TEST OF A MATERIAL

Dispositif mécanique ou électromécanique (DBT) configuré pour la réalisation d'un essai de déformation d'un matériau, comprenant un piston et/ou une barre d'entrée (1), une cellule (CEL), laquelle comprend une chambre (2) et un élément matrice de maintien (4) d'un flan (3) à déformer. La cellule (CEL) du dispositif (DBT) se caractérise par une masse délibérément conséquente et est solidaire d'au moins un élément d'appui (5) adapté à faire pression sur au moins un amortisseur (6) configuré pour absorber une partie de l'énergie reçue via le piston et/ou la barre d'entrée (1), le dispositif (DBT) ne comprenant pas d'élément mécanique de type « barre sortante ».

Tensile testing apparatus

본 발명은 인장 시험 장치에 관한 것이다. 본 발명의 일 실시 예에 따른 인장 시험 장치는 시험편을 파지하는 지그를 가지고, 상기 시험편이 인장되게 하여, 인장 시험이 이루어 지게 할 수 있는 시험 유닛; 및 상기 시험 유닛에 연결되어, 상기 시험 유닛이 동작되는 동력을 제공하는 구동 유닛을 포함하되, 상기 구동 유닛은 기체압을 통해 구동 하도록 제공된다. The present invention relates to a tensile testing device. Tensile test apparatus according to an embodiment of the present invention has a jig for gripping the test piece, the test piece that allows the test piece to be tensioned, a tensile test can be made; And a drive unit connected to the test unit to provide power to operate the test unit, wherein the drive unit is provided to drive through gas pressure.

평면 방향 파이로 충격 시험기

The present invention relates to a pyro shock tester to simulate a shock environment of an object by applying a shock to the object and, more specifically, relates to an in-plane pyro shock tester which can simulate an in-plane shock environment of an object by applying a shock to the object in an in-plane direction of the object.

SHOCK TESTING DEVICE USING ENERGY FRAME WITH IMPROVED STRAIN RATE

The present invention relates to a device to monitor tension behavior of cement complex materials such as concrete, fiber reinforcement concrete, and ultrahigh strength fiber reinforcement concrete in an area with not less than 40/sec of strain rate by improving a shock rate of a shock testing device (SEFIM) using an energy frame. The present invention is capable of significantly improving a range of strain rate to be measured by changing the material of the energy frame or changing the diameter of the energy frame of the SEFIM. Since the diameter or material of the energy frame is changed in a procedure in which a tensile load is stored as elastic energy and the stored energy is converted into a shock wave to apply a tensile shock load to a shock test sample, a strain rate of an existing SEFIM is able to be increased up to an area with not less than 40/sec without an increase in installation space for the testing device and also the tension behavior of cement complex materials such as ...

STONE IMPACT SIMULATOR

A stone impact simulator is provided. That stone impact simulator includes a projectile propulsion section to propel a projectile toward a test sample and a projectile capture section to capture the projectile after the projectile ricochets off of the test sample. The projectile capture section includes a rebound block, a spent projectile storage compartment and a projectile energy dissipation element between the rebound block and the spent projectile storage compartment. 1. A stone impact simulator , comprising:a projectile propulsion section to propel a projectile toward a test sample; anda projectile capture section to capture said projectile after ricocheting off of said test sample, said projectile capture section including a rebound block, a spent projectile storage compartment and a projectile energy dissipation element between said rebound block and said spent projectile storage compartment.2. The stone impact simulator of claim 1 , wherein said projectile energy dissipation element includes a frustoconical wall.3. The stone impact simulator of claim 2 , wherein said frustoconical wall has a cone angle of between 3 degrees and 20 degrees.4. The stone impact simulator of claim 3 , wherein said frustoconical wall has a cone angle of about 15 degrees.5. The stone impact simulator of claim 2 , wherein said rebound block has an arcuate face.6. The stone impact simulator of claim 5 , wherein said arcuate face has a radius of curvature of between 1 and 3 inches.7. The stone impact simulator of claim 5 , wherein said arcuate face has a radius of curvature of between 2.3 and 2.5 inches.8. The stone impact simulator of claim 5 , wherein said arcuate face has a radius of curvature of about 2.41 inches.9. The stone impact simulator of claim 5 , wherein said projectile capture section further includes a curved ramp between said rebound block and said projectile energy dissipation element.10. The stone impact simulator of claim 9 , wherein said curved ramp includes an ...

Pneumatic impact device

Shock apparatus

One embodiment of a shock apparatus comprises a plurality of impact objects spatially ordered according to decreasing mass along a substantially linear path; a guide to guide movement of the impact objects along the path; and a plurality of spacers, one spacer between each adjacent pair of impact objects in the spatial order. The guide and spacers enable a plurality of temporally ordered impacts involving the plurality of impact objects. In one embodiment, at least one of the impact objects comprises an impact portion positioned at a point where the impact object impacts at least one other impact object; and the properties of the impact portion are selectable to affect the magnitude and duration of a shock acceleration pulse experienced by the at least one impact object.

TENSILE TESTING MACHINE AND METHOD FOR CONTROLLING TENSILE TESTING MACHINE

A test result of a tensile test and a measurement result of a natural frequency are easily associated with each other. A high-speed tensile testing machine is a tensile testing machine that executes a tensile test by applying a test force F to a test target TP. The machine includes: a determination unit that determines a timing at which a striking force FD is applied to a testing machine body a striking structure that applies the striking force FD to the testing machine body at the timing determined by the determination unit a first detection unit that detects a vibration of the testing machine body generated by the striking force FD; a calculation unit that calculates a natural frequency FA of the high-speed tensile testing machine on the basis of a detection result of the first detection unit an execution instruction unit that executes the tensile test; and a recording unit that writes, in a result storage unit information indicating a test result of the tensile test in association with information indicating the natural frequency FA. The timing is included in either before or after the tensile testing machine executes the tensile test. 1. A tensile testing machine that executes a tensile test by applying a test force to a test target , the machine comprising:a determination unit that determines a timing at which a striking force is applied to a tensile testing machine body;a striking structure that applies the striking force to the tensile testing machine body at the timing determined by the determination unit;a first detection unit that detects a vibration of the tensile testing machine body generated by the striking force;a calculation unit that calculates a natural frequency of the tensile testing machine on a basis of a detection result of the first detection unit;an execution unit that executes the tensile test; anda recording unit that records information indicating a test result of the tensile test in association with information indicating the natural ...

SNAP BUTTON DEVICE FOR NON-DESTRUCTIVE CHARACTERIZATION OF MATERIALS

Prüfvorrichtung für Proben unter Stoßbelastung

Prüfvorrichtung zur Ermittlung geschwindigkeitsabhängiger Verbindungskennwerte einer Probe unter Stoßbelastung, wobei die Probe in einer Einspannstrecke gefasst ist, in der ein in einer Beschleunigungsvorrichtung (4) über eine Vorlaufstrecke beschleunigter Kolben (18) die Belastung in Form eines im Wesentlichen elastischen Stoßes auf die Probe (2) überträgt, dadurch gekennzeichnet, dass die Beschleunigungsvorrichtung (4) einen Prüfzylinder (20) besitzt, dessen Ende (19) konusförmig ausgebildet ist, sowie einen entsprechend angepassten konusförmigen Kolben (18), zwischen denen ein Dämpfungselement (21) wirkt, und damit durch eine bestimmte Integration eines plastischen Stoßanteils mittels des Dämpfungselementes (21) und durch ein definiertes Verhältnis der zur Beschleunigung der Kolbenmasse benötigten Energie zu der Bruchenergie der Probe die Ermittlung von Kraft-Weg- oder Kraft-Zeit-Verläufen bei annährend konstanter Verformungsgeschwindigkeit während des Probenversagens und ohne nennenswerte ...

Vibration Amplitude Measuring Instrument

... 1,176,221. Measuring vibration. AKADEMIA GORNICZO-HUTNICZA W. KRAKOWIE. Jan.2, 1967 [Dec.31, 1965], No.163/67. Headings G1J and G1N. A vibration amplitude measuring instrument comprises a housing 4 in which a weight 1 is fixed to a rod 2 by a nut 3, a piston 6 being slidable in a cylinder 9 and secured to the rod by a nut 7 and means being provided for measuring the movement of the weight in the housing. The weight 1 is biased upwardly by a spring 10 and a light ring 5 frictionally engages the upper portion of the rod which has graduated markings. The base 11 of the instrument has a bore in which is located a clamp for fixing the instrument to a vibrating machine. Downward movement of the piston due to vibrations of the machine causes air in the cylinder 9 to pass through holes in the piston and displace a plate 8 however, upward movement of the piston holds the plate against the holes to produce a damping effect on the piston movement. The amplitude of the vibrations is detected by the ...

HARDNESS MEASURING INSTRUMENT WITH A HOUSING AND A EINDRINGKÖRPER, IN PARTICULAR HAND ATTACHMENT

Device and method for testing tensile modulus of concrete under high strain rate

UNIVERSAL TESTING GROUND INTENDS FOR THE CHARACTERIZATION LAWS OF COMPORTEMENTSTATIQUE AND DYNAMICS OF ALL MATERIALS

PROCESS AND DEVICE Of INSPECTION BY IMPACT OF the STRUCTURES Of WORKS.

SYSTEM AND METHOD FOR MEDIUM LAMINATED STRUCTURE

dispositivo para medir a resposta ao estresse/tração dinâmica de materiais dúcteis

DEVICE FOR TESTING WATER HAMMER STRENGTH OF GLASS BOTTLES

In order to enable an accurate test of bottles to be performed consistently without affecting the sealing ability of the caps, a device for testing water hammer strength has a placement plate on which the glass bottles are placed, an affixation means which affixes the glass bottles on the placement plate, a lowering means which lowers the placement plate at acceleration higher than the acceleration of gravity, and a guide means which guides the descent of the placement plate. The placement plate descends vertically because of the guide means, and as a result, the bottles do not tilt and an accurate test can be performed consistently.

TEST DEVICE FOR SIMULATING MOTOR VEHICLE CRASHES AND METHOD FOR OPERATING A TEST DEVICE

The invention relates to a method for operating a test device (100) and to a test device (100) for simulating motor vehicle crashes, wherein the test device (100) has a carriage arrangement (110) which is arranged so as to be displaceable along a rail arrangement; a test setup which is arranged on the carriage arrangement (110) and has at least one motor vehicle component to be tested; and an acceleration unit (120) by means of which a force can be transmitted to the carriage arrangement (110) in order to accelerate the carriage arrangement (110). The acceleration unit (120) has a hydraulic drive cylinder (122) with a piston (123) and a piston rod (121) which is connected to the carriage arrangement (110). In order to ensure that a simulation of accident situations can be improved in a way which is easy to implement but nevertheless reproducible, according to the invention, at least one measuring pickup (126, 127) is provided for sensing a pressure (P1, P2) which acts in the piston-side ...

GLAZING INSPECTION

A method of inspecting the fragmentation pattern of a single ply of toughened glass, following a fragmentation test carried out in accordance with ECE R43,is disclosed. The method comprises illuminating a first portion of the ply of glass in transmission using a strip light source located on a first side of the transparent support means. An image of the first portion of the ply of glass is captured using an image capture device located on a second side of the transparent support means, aligned with and fixed in a relative position to the strip light source. A series of images of the glass are collected and analysed to produce an image of the fragmentation pattern. Apparatus for carrying out such imaging is also disclosed.

IMPACT GENERATING EQUIPMENT FOR DYNAMIC LOADING TESTS

A new impact generating equipment for dynamic loading tests, designed to be adjustable to various sizes of structures and formats, particularly for piles of construction sites, so that the dynamic loading tests can be performed more easily, more efficiently and with faster speed, leading to results with minimum error margins in less time, and with a constructiveness that facilitates its transport and handling, generating logistic gains and reducing costs in the execution of tests.

DEVICES, SYSTEMS AND METHOD FOR FLOORING PERFORMANCE TESTING

In one implementation, a footfall detection assembly comprising a sensor underlayment unit and a data analysis device is provided. The sensor underlayment unit comprises a sensor having a unique sensor identifier and a plurality of zones, wherein the sensor is configured to measure zone capacitance in of the plurality of zones, and a processing unit operably connected to the sensor. The processing unit is configured to receive the measured zone capacitance values from the sensor upon the occurrence of a change in measured zone capacitance of the sensor and generate and transmit a data packet comprising at least the unique sensor identifier and measured zone capacitance values upon occurrence of a change in capacitance of at least one of the plurality of zones of the sensor. The data analysis device is configured to receive the data packet, compare the measured zone capacitance values of the data packet to previously-measured zone capacitance values associated with the sensor underlayment into and generate a result therefrom. 1. A footfall detection assembly , comprising: a sensor having a unique sensor identifier and a plurality of zones, wherein the sensor is configured to measure zone capacitance in each of the plurality of zones; and', 'a processing unit operably connected to the sensor and configured to receive the measured zone capacitance values from the sensor and generate and transmit a data packet comprising at least the unique sensor identifier and measured zone capacitance values upon occurrence of a change in capacitance in at least one of the plurality of zones of the sensor; and, 'a sensor underlayment unit, comprisinga data analysis device configured to receive the data packet, compare the measured zone capacitance values of the data packet to previously-measured zone capacitance values associated with the sensor underlayment unit and generate a result therefrom.2. The footfall detection assembly of claim 1 , wherein the plurality of zones comprises ...

Device for evaluating resistance to formation of mechanical damages in structural and esthetic elements and use thereof

The present invention is a self-leveling hydrometer. A balance hanger is on top of a handle (12), which connects to a swinging support part (4). An imbalanced load (10) is in the center of the floating measurement indicator and the imbalanced load can rotate freely in the round hole on the center of the floating measurement indicator (8). The imbalanced load has a protrudent round plate (10-1) on edge that exposes on the round hole (9) of the floating measurement indicator. A moveable hook, the support part and the imbalanced load can position the present invention in an absolute horizontal position for accurate liquid specific gravity readout. The present invention can also achieve easier and more accurate initial calibration process during manufacturing.

METHOD AND APPARATUS FOR THE NON-DESTRUCTIVE MEASUREMENT OF THE COMPRESSIVE STRENGTH OF A SOLID

СИСТЕМА (ВАРИАНТЫ)

Vorrichtung zum Feststellen der Dauerschlagfestigkeit von schlagartig beanspruchten Teilen, insbesondere Schusswaffenteilen

Shock testing apparatus and method

MEASURING STATIC AND DYNAMIC MATERIAL CHARACTERISTICS

Vehicle impact testing

A system includes a base 105 and a track 110 supported by the base and a block 105 movably attached to the track. The block is arranged to increase a pressure in a pressure chamber 140. A pressure sensor 160 is attachable to the pressure chamber. The pressure sensor is programmed to collect pressure data from the pressure chamber when the block increases the pressure in the pressure chamber through impact with an impact surface 120. In an embodiment the pressure chamber lies between the block and the pressure surface, tension in springs 135 are used to propel the block against the impact surface which deforms the pressure chamber. Alternatively to springs, pneumatics or hydraulics may be used for example. In an alternative embodiment the pressure chamber is contained within the block itself, is substantially rigid, a tube with a plunger impacts the impact surface and is forced into the cavity decreasing the volume of air and increasing pressure.

An output member

HOPKINSON SPALTSTAB TEST DEVICE

PROCEDURE FOR THE QUANTITATIVE CHARACTERISATION OF THE BEHAVIOR FROM ORGANIC COATINGS WHEN FALLING ROCKS WELL-BEHAVED DEMAND AND ARRANGEMENT TO THE EXECUTION OF THE PROCEDURE

PROCEDURE AND DEVICE FOR THE NON DESTRUCTIVE CLASSIFICATION

COLLISION TEST DEVICE

PROCEDURE FOR THE QUANTITATIVE CHARACTERISATION OF THE BEHAVIOR FROM ORGANIC COATINGS WHEN FALLING ROCKS WELL-BEHAVED DEMAND AND ARRANGEMENT TO THE EXECUTION OF THE PROCEDURE

Log cutting optimization system

NON-DESTRUCTIVE METHOD AND APPARATUS FOR CHECKING THE QUALITY OF MANUFACTURED WOOD PANELS

Method and apparatus for non-destructive testing the quality of manufactured wood panels which includes supporting the panel so as to have a portion thereof is cantilevered fashion. The cantilevered portion of the panel is caused to vibrate so as to include complex vibrations that include both twisting and bending. The vibrations in the panel are sensed providing an output signal that is fed to analyzers and computers to determined from thee bending and twisting vibrations simultaneously induced respectively the modulus of elasticity and shear modulus of the panel. Two different forms of apparatus are illustrated, one of which requires the panel to be stationary while being tested and the other in which the panel moves continuously while vibrations are induced and the induced vibrations sensed. The apparatus includes a weigh station to weigh the panel, apparatus to determine the thickness of the panel, apparatus to induce a vibrations in the panel and apparatus to clamp the panel so as ...

DETERMINATION OF STRUCTURAL CHARACTERISTICS OF AN OBJECT

The present invention relates generally to a system and method for measuring the structural characteristics of an object. The object is subjected to an energy application processes and provides an objective, quantitative measurement of structural characteristics of an object. The system may include a device, for example, a percussion instrument, capable of being reproducibly placed against the object undergoing such measurement for reproducible positioning. The system includes features for adjusting the energy applied to an energy application tool to compensate for orientation of the device relative to the horizontal. The system also includes a disposable feature or assembly for minimizing cross- contamination between tests. The structural characteristics as defined herein may include vibration damping capacities, acoustic damping capacities, structural integrity or structural stability.

Device and method for studying dynamic mechanical characteristics of prestressed anchor

Test piece assembly for testing rock I-II composite dynamic fracture toughness and test method

PROCESS AND DEVICE OF TEST FOR THE MEASUREMENT OF THE BREAKING STRENGTH DYNAMIC

TESTING APPARATUS OF SHOCK TO TEST the BEHAVIOR Of an OBJECT AT THE TIME OF a SHOCK.

TESTING APPARATUS OF SHOCK

Testing machine for landing gears, or other bodies of planes and other aircraft

PROCEDE ET APPAREIL DE DETERMINATION DE CARACTERISTIQUES STATIQUES ET DYNAMIQUES D'UNE MATIERE VISCO-ELASTIQUE

L'invention est relative à un procédé et un appareil pour la détermination des caractéristiques d'une matière visco-élastique. A l'aide d'une force F, on applique à cette matière une déformation constante prédéterminée par compression ou impression et on mesure l'établissement de la force F, à partir d'un moment zéro, et sa décroissance après que la déformation constante a été atteinte, en fonction du temps et on détermine les caractéristiques de la matière sur la base d'une série de formules dans lesquelles est introduite la force mesurée, l'appareil comportant un corps de pression 2 fixé conjointement avec un capteur de force 4 à un élément mobile 5, des moyens de détection étant prévus pour la mise en service du capteur de force lors du déplacement de l'élément 5 précité. (CF DESSIN DANS BOPI) ...

IMPACT FORCE MEASURING ASSISTIVE DEVICE OF WATER SURFACE

The present invention relates to an impact force measuring assistive device of a water surface and, more specifically, provides an impact force measuring assistive device of a water surface comprising: a column standing on one side of a water tank wherein a winch is mounted on an upper surface; a measuring jig detachably coupled to a wire wound in the winch, and unrestrictedly and longitudinally moved along a column; an air pressure trigger selectively restricting the measuring jig, and longitudinally moved along the column; and a height adjustment unit attached to the column to move the air pressure trigger at any height. As such, the object is able to freely fall on a water surface in a state of restricting a height of an object and a condition of water. COPYRIGHT KIPO 2017 ...

TEST DEVICE FOR SIMULATING MOTOR VEHICLE CRASHES AND METHOD FOR OPERATING A TEST DEVICE

개선된 생존성을 갖는 강화 유리 제품

... 구체 예는 강화 유리 제품과 관련되고, 상기 강화 유리 제품은, 두께 t ≤ 1mm (1000㎛), 중심 인장 CT (MPa로) 하의 내부 영역, 및 상기 내부 영역에 인접하고 상기 강화 유리 제품의 표면으로부터 강화 유리 제품 내에 층의 깊이 DOL (㎛)로 확장하는 적어도 하나의 압축 응력 층을 가지며, 여기서 상기 강화 유리 제품은 표면에서 압축 응력 CSs (MPa로) 하에 있고, 여기서 상기 강화 유리 제품은 0-5 mol% Li2O, 적어도 3 mol% Al2O3, 및 적어도 5 mol% Na2O를 포함하는 알칼리 알루미노실리케이트 유리 제품이며, 및 여기서, DOL ≥ 90㎛, 및 CSs/DOL 비 ≥ 2.5 MPa/㎛이다.

FIXED BEAM HIGH-G SHOCK PULSE GENERATOR APPARATUS AND METHOD

An apparatus and method for use in testing devices (18) under high-g environments is disclosed in which an elastic beam (10), rigidly fastened at least at one end (12 or 14), carries the device under test; the beam being pre-loaded to a bent position by a force producing member (26, 28) which may be suddenly removed (e.g., 40) to allow the stored energy of the beam to be released, and to apply a high-g force to the device.

Пневматический стенд для испытаний аппаратуры на прочность при воздействии вертикальных нагрузок

Полезная модель относится к испытательной технике, в частности к устройствам для испытаний на ударные воздействия, характерные при транспортировке различных приборов и оборудования. Пневматический стенд содержит опорное основание с закрепленным на нем средством воздействия на подвижную платформу, предназначенную для закрепления испытуемого объекта, направляющие, жестко связанные с опорным основанием, нижний демпфер, расположенный между подвижной платформой и средством воздействия на нее. В качестве средства воздействия стенд снабжен управляемым пневмоцилиндром двухстороннего действия, обеспечивающим движение подвижной платформы вдоль цилиндрических направляющих посредством штока, связанного с подвижной платформой. На цилиндрических направляющих установлены линейные подшипники, снабженные фланцами для крепления к подвижной платформе. Стенд дополнительно содержит управляющий блок пневмоцилиндра, верхние демпферы заданной жесткости, размещенные на цилиндрических направляющих над подвижной платформой, ограничивающие движение подвижной платформы. Технический результат: получение заданных положительных и отрицательных ударных нагрузок за один цикл работы стенда, работа стенда в автоматическом режиме, сокращение времени испытаний, более точное воспроизведение ударной нагрузки. 2 з.п. ф-лы, 1 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 181 812 U1 (51) МПК G01M 7/08 (2006.01) G01N 3/307 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК G01M 7/08 (2006.01); G01N 3/307 (2006.01) (21)(22) Заявка: 2018115486, 24.04.2018 (24) Дата начала отсчета срока действия патента: Дата регистрации: 26.07.2018 (45) Опубликовано: 26.07.2018 Бюл. № 21 Адрес для переписки: 630090, г. Новосибирск, ул. Пирогова, 2, Новосибирский государственный университет, отдел защиты и управления ИС (73) Патентообладатель(и): федеральное государственное автономное образовательное учреждение высшего образования "Новосибирский национальный ...

Hand-Held Power Tool Device

A hand-held power tool device comprises an impact tool unit, an impact detection unit, and a blocking detection unit. The impact tool unit is configured to drive an insertion tool at least partially in at least one of a rotational fashion and a translatory fashion. The impact detection unit is configured to detect at least one impact parameter, such as linear acceleration running at least substantially parallel to a processing axis of the insertion tool. The blocking detection unit is configured to detect at least one blocking parameter, such as at least one an angular acceleration about the processing axis of the insertion tool. The impact detection unit and the blocking detection unit are formed at least partially as one-piece. 1. A hand-held power tool device , comprising:an insertion tool;an impact tool unit configured to drive the insertion tool at least partially in at least one of a rotational fashion and a translatory fashion;an impact detection unit configured to detect at least one impact parameter, wherein the at least one impact parameter is a linear acceleration running at least substantially parallel to a processing axis of the insertion tool; anda blocking detection unit configured to detect at least one blocking parameter, wherein the at least one blocking parameter is an angular acceleration about the processing axis of the insertion tool,wherein the impact detection unit and the blocking detection unit are formed at least partially as one-piece.2. The hand-held power tool device according to claim 1 , further comprising:at least one sensor element configured to detect the linear acceleration and the angular acceleration.3. The hand -held power tool device according to claim 2 , wherein the at least one sensor element is at least one acceleration sensor.4. The hand -held power tool device according to claim 2 , wherein the at least one sensor element is at least one three-axis acceleration sensor.5. The hand -held power tool device according to ...

METHOD AND FACILITY FOR COLLISION PERFORMANCE EVALUATION TEST FOR METAL SHEET MATERIAL FOR AUTOMOBILE BODY

A collision performance evaluation test with few variations in test results with high accuracy in which a complicated phenomenon that actually occurs can be reproduced in a simple manner by considering the history of deformation in both the press forming and a collision. A collision performance evaluation test method for a metal sheet material for an automobile body is characterized in that a press working apparatus first forms a flat test specimen made of a metal sheet material to be tested into a V shape by primary bending, a bending test apparatus then deforms, by secondary bending, the test specimen formed by the primary bending in a direction intersecting with the primary bending direction, and a bending load and a bending stroke for the test specimen during the secondary bending deformation are recorded and evaluated. 110-. (canceled)11. A collision performance evaluation test method for a metal sheet material for an automobile body , whereina press working apparatus first forms a flat test specimen made of a metal sheet material to be tested into a V shape by primary bending,a bending test apparatus deforms the test specimen that has been formed by the primary bending in a direction intersecting with a primary bending direction, by secondary bending, anda bending load and a bending stroke for the test specimen are recorded and evaluated during the secondary bending deformation.12. The collision performance evaluation test method for a metal sheet material for an automobile body according to claim 11 , whereinthe bending test apparatus deforms, by secondary bending, the test specimen formed by the primary bending in a direction intersecting and also inverting with respect to the primary bending direction, and records and evaluates a bending load and a bending stroke for the test specimen during the secondary bending deformation.13. The collision performance evaluation test method for a metal sheet material for an automobile body according to claim 11 , ...

DEVICE FOR MEASURING THE DYNAMIC STRESS/STRAIN RESPONSE OF DUCTILE MATERIALS

A method and apparatus for measuring a dynamic tensile stress and/or tensile strain response of a material such as an elastic material and/or a ductile material. The apparatus may include a striker bar, a stretcher bar, and a drive assembly configured to propel the striker bar toward the stretcher bar. The apparatus may further include a stationary specimen mount and a movable specimen mount that receive a test sample. The striker bar and the stretcher bar of the apparatus may provide a continuous stress on the test sample and an accurate tensile stress/strain measurement. 1. An apparatus for measuring a dynamic tensile stress/strain response of a material , comprising:a striker bar;a stretcher bar;a drive assembly configured to propel the striker bar toward the stretcher bar;a stationary specimen mount configured to receive a first portion of a test sample and to maintain the first portion of the test sample in a fixed position; anda movable specimen mount configured to receive a second portion of the test sample and to move away from the stationary specimen mount during a test or measurement of the test sample.2. The apparatus of claim 1 , wherein the striker bar is aligned with the stretcher bar claim 1 , and the stretcher bar is configured to move away from the stationary specimen mount from an impact of the striker bar with the movable specimen mount.3. The apparatus of claim 2 , wherein:the striker bar is configured to generate a pressure wave through the stretcher bar resulting from the impact of the striker bar with the movable specimen mount;the striker bar and the stretcher bar are configured such that the pressure wave traverses from a first end of the stretcher bar to a second end of the stretcher bar and back to the first end of the stretcher bar;the striker bar and the stretcher bar are configured such that the pressure wave traverses from the first end of the stretcher bar into the striker bar during physical contact of the striker bar with the ...

High-G Shock Testing Machine

A shock testing machine including: a test platform upon which one or more objects to be tested are mounted; one or more rails upon which the test platform is movable in a longitudinal direction; and a braking station for retarding a relative motion between the test platform and the braking station, wherein the test platform and the braking station include at least one portion interfering with the relative motion of the test platform and the braking station such that relative movement of the test platform and the braking station past the at least one portion produces a shock lateral to the longitudinal direction 1. A shock testing machine comprising:a test platform upon which one or more objects to be tested are mounted;one or more rails upon which the test platform is movable in a longitudinal direction; anda braking station for retarding a relative motion between the test platform and the braking station,wherein the test platform and the braking station include at least one portion interfering with the relative motion of the test platform and the braking station such that relative movement of the test platform and the braking station past the at least one portion produces a shock lateral to the longitudinal direction.2. The shock testing machine of claim 1 , wherein the at least one portion comprises one or more protuberances on the test platform and one or more protuberances on the braking station claim 1 , wherein the one or more protuberances on the test platform overlap with the one or more protuberances on the braking station in a direction lateral to the longitudinal direction.3. The shock testing machine of claim 2 , further comprising one or more actuators for varying an amount of the overlap in the direction lateral to the longitudinal direction.4. The shock testing machine of claim 3 , wherein the one or more actuators comprise one or more piezoelectric actuators.5. The shock testing machine of claim 1 , wherein the test platform is rotatable about a ...

High-G Shock Testing Machine

A brake for use with a shock testing machine, the brake including: a brake material for generating a frictional force to stop a test platform when the brake material is urged against an opposed braking surface; links for rotatably connecting the brake material to the test platform; a biasing spring to bias the brake material towards the braking surface; a restraint mechanism for restraining the braking material, against a biasing force of the biasing spring, in a retracted position where the braking material is separated from the braking surface; and a release mechanism for releasing the restraint of the release mechanism to bias the brake material against the braking surface; wherein the links are configured such that relative movement between the brake material and braking surface while the brake material and braking surface are engaged causes a frictional force between the brake material and braking material to increase.

METHODS AND SYSTEMS FOR CONTROLLING IMPACT

An impact test device includes a control rail and a carriage assembly moveable along the control rail in a plurality of directions including a first direction and a second direction opposite the first direction. The carriage assembly includes a catch configured to engage the control rail to control movement of the carriage assembly. Movement of the carriage assembly in the first direction urges the catch to disengage from the control rail, and movement of the carriage assembly in the second direction urges the catch to engage the control rail. 1. An impact test device comprising:a control rail; anda carriage assembly moveable along the control rail in a plurality of directions including a first direction and a second direction opposite the first direction, the carriage assembly including a catch configured to engage the control rail to control movement of the carriage assembly, wherein movement of the carriage assembly in the first direction urges the catch to disengage from the control rail and movement of the carriage assembly in the second direction urges the catch to engage the control rail.2. The impact test device of claim 1 , wherein the carriage assembly includes a carriage plate and an impactor extending from the carriage plate claim 1 , the control rail extending through an opening defined through the carriage plate.3. The impact test device of claim 1 , wherein the catch is moveable between an engaged configuration and a disengaged configuration claim 1 , the carriage assembly restricted from moving in the first direction when the catch is in the engaged configuration and allowed to move in the first direction when the catch is in the disengaged configuration.4. The impact test device of claim 1 , wherein the carriage assembly includes a carriage plate and a hinge coupling the catch to the carriage plate.5. The impact test device of claim 4 , wherein the catch includes a stop configured to limit a rotation of the catch.6. The impact test device of claim 1 ...

Mechanical High Spin-Shock Testing Machines

A rotary shock testing machine including: a base; a shaft rotatable relative to the base; a test disc for holding one or more specimens to be tested, the test disc being rotatable with the shaft; an actuator for applying a rotation to the shaft and test disc; and a brake for applying a braking force to the test disc to subject the one or more specimens to a rotary shock. 1. A rotary shock testing machine comprising:a base;a shaft rotatable relative to the base;a test disc for holding one or more specimens to be tested, the test disc being rotatable with the shaft;an actuator for applying a rotation to the shaft and test disc; anda brake for applying a braking force to the test disc to subject the one or more specimens to a rotary shock.2. The rotary shock testing machine of claim 1 , further comprising one or more bearings for rotatably supporting the shaft.3. The rotary shock testing machine of claim 2 , wherein the one or more bearings comprises two or more bearings and the shaft comprising two or more shaft portions corresponding to each of the two or more bearings claim 2 , and further comprising a coupling for coupling each of adjacent two or more shaft portions together.4. The rotary shock testing machine of claim 3 , wherein the coupling is a clutch.5. The rotary shock testing machine of claim 1 , further comprising a sensor for sensing one or more of position claim 1 , velocity claim 1 , acceleration and deceleration of the test disc.6. The rotary shock testing machine of claim 1 , wherein the actuator is an electric motor.7. The rotary shock testing machine of claim 1 , further comprising a slow motion camera system directed at the one or more specimens to be tested.8. The rotary shock testing machine of claim 1 , wherein the brake is applied to the test disc.9. The rotary shock testing machine of claim 1 , further comprising a braking disc rotatable with the test disc claim 1 , wherein the brake is applied to the brake disc.10. The rotary shock testing ...

Mechanical Rotary Shock Testing Machines

A rotary shock-testing machine including: a base; a first shaft rotatable relative to the base, the first shaft being driven to rotate; a first wheel rotatable with the first shaft; a second shaft rotatable relative to the base; a second wheel rotatable with a first portion of the second shaft; and a test disc for holding one or more specimens to be tested, the test disc being rotatable with a second portion of the second shaft; wherein the first and second wheels are aligned with each other such that the second wheel is driven by the first wheel when a material is introduced into a gap between a surface of the first wheel and a corresponding surface of the second wheel. 1. A rotary shock-testing machine comprising:a base;a first shaft rotatable relative to the base, the first shaft being driven to rotate;a first wheel rotatable with the first shaft;a second shaft rotatable relative to the base;a second wheel rotatable with a first portion of the second shaft; anda test disc for holding one or more specimens to be tested, the test disc being rotatable with a second portion of the second shaft;wherein the first and second wheels are aligned with each other such that the second wheel is driven by the first wheel when a material is introduced into a gap between a surface of the first wheel and a corresponding surface of the second wheel.2. The rotary shock-testing machine of claim 1 , further comprising one or more bearings for rotatably supporting each of the first and second shafts.3. The rotary shock-testing machine of claim 2 , wherein the one or more bearings comprises two or more bearings and each of the first and second shafts comprise two or more shaft portions corresponding to each of the two or more bearings claim 2 , and further comprising a coupling for coupling each of adjacent two or more shaft portions together.4. The rotary shock-testing machine of claim 1 , further comprising a motor operatively connected to the first shaft for rotatably driving the ...

Vehicle impact testing

A system, includes a base and a track supported by the base. The system includes a block movably attached to the track. The block is arranged to increase a pressure in a pressure chamber. A pressure sensor is attachable to the pressure chamber. The pressure sensor is programmed to collect pressure data from the pressure chamber when the block increases the pressure in the pressure chamber.

HELMET TESTING EQUIPMENT AND METHODOLOGY

A method for testing a helmet for effectiveness of user protection includes moving a load along a predetermined path, supporting a target body at an impact location in the predetermined path, the target body including a head model and a helmet disposed on the head model, and impacting the target body with a force generated by the moving of the load. The impacting of the target body entails contacting the target body with an impactor free to move perpendicularly and tangentially relative to a surface of the target body. The supporting of the target body is at least reduced, if not eliminated, before or during the impact of the impactor with the target body at the location. Forces generated are automatically measured or sensed during the impact of the impactor with the target body at the location. 1. A method for testing a helmet for effectiveness of user protection , comprising: moving a load along a predetermined path;supporting a target body at an impact location in said predetermined path, said target body including a head model and a helmet disposed on said head model;impacting said target body with a force generated by the moving of said load, the impacting of said target body including contacting said target body with an impactor free to move perpendicularly and tangentially relative to a surface of said target body;at least partially reducing the supporting of said target body before or during the impact of said impactor with said target body at said location; andautomatically measuring forces generated during the impact of said impactor with said target body at said location.2. The method defined in wherein said load includes said impactor claim 1 , the moving of said load including restraining said impactor during an initial portion of said predetermined path and further including at least partially eliminating the restraining of said impactor at or prior to impact of said impactor with said target body at said location.3. The method defined in wherein the ...

APPARATUS FOR MEASURING COEFFICIENT OF RESTITUTION AND HARDNESS TESTER

An apparatus for measuring for measuring coefficient of restitution which is capable of reducing a mass effect and performing tests in free directions, is disclosed. The apparatus for measuring coefficient of restitution includes a holder for holding a spherical indenter, an ejection mechanism configured to eject the indenter held by the holder from the holder to a specimen, a speed measuring unit configured to measure an impact speed that is a speed of the indenter before the indenter impacts against the specimen, and a rebound speed that is a speed of the indenter after the indenter is rebounded from the specimen; and an arithmetic unit configured to calculate a coefficient of restitution that is a ratio of the rebound speed to the impact speed. 1. An apparatus for measuring coefficient of restitution , comprising:a holder for holding a spherical indenter;an ejection mechanism configured to eject the indenter held by the holder from the holder to a specimen;a speed measuring unit configured to measure an impact speed that is a speed of the indenter before the indenter impacts against the specimen, and a rebound speed that is a speed of the indenter after the indenter is rebounded from the specimen; andan arithmetic unit configured to calculate a coefficient of restitution that is a ratio of the rebound speed to the impact speed.2. The apparatus for measuring coefficient of restitution according to claim 1 , wherein the holder has a tubular shape claim 1 ,a front end of the holder is constituted of a plurality of divided portions by forming slits extending parallel to an axis of the holder, andthe holder holds a circumferential surface of the indenter at the divided portions.3. The apparatus for measuring coefficient of restitution according to claim 1 , wherein the ejection mechanism includesan inner cylinder with a through hole forming therein,an outer cylinder having an inner circumferential surface slidably supported by an outer circumferential surface of the ...

COLLISION PERFORMANCE EVALUATION TEST METHOD AND APPARATUS FOR AUTOMOBILE BODY PART

A translation control and rotation control mechanism support jig for supporting a front end portion of an automobile body part includes a pair of support members, a rotary box having an L-shaped plate, a rotary shaft pin, a compression pin, and a connection plate. The translation control mechanism includes a support plate, a slide guide, an automobile body part securing disk, a translation plate, and a compression pin. Energy-absorbing members are disposed in an arcuate guide groove on a side surface of the rotary box and a linear guide groove arranged on the support plate or the translation plate. A collision punch collides at a test speed with the L-shaped plate of the rotary box. The compression pin deforms the energy-absorbing members to apply torque opposite to a rotation direction and a reaction force in an opposite direction to a translation direction. 1. A collision performance evaluation test method for an automobile body part ,whereinthe method comprises steps of:in performing an evaluation test of collision performance of an automobile body part,supporting a front end portion, an intermediate portion, and a rear end portion of the automobile body part by using support jigs, respectively;providing a translation control and rotation control mechanism in the support jig for supporting the front end portion; andproviding a translation control mechanism in the support jig for supporting the intermediate portion,wherein a pair of support members having two rows of horizontal guide grooves parallel to a collision direction;', 'a rotary box that has an upper surface to which the front end portion of the automobile body part is secured, includes an L-shaped plate having a front surface with which a collision punch is made to collide and a side surface plate provided on each of both side surfaces of the L-shaped plate, and is held between the support members;', 'a rotary shaft pin that penetrates, as a rotary shaft of the rotary box, the side surface plate of the ...

APPARATUS AND METHOD FOR IN-SITU TESTING IMPACT STRENGTH OF MICRO-STRUCTURE

Disclosed is an apparatus for in-situ testing impact strength of a micro-structure, comprising: a flexible beam, one end of which being fixed; an impact mass block disposed at the other end of the flexible beam and configured to exert an impact on the micro-structure; and a locking member comprising a beam arm and a plurality of locking teeth, wherein the beam arm is perpendicular to the flexible beam and one end of the beam arm is fixed, and wherein the plurality of locking teeth are distributed at intervals along the beam arm, such that the other end of the flexible beam is engaged to one of the plurality of locking teeth when the flexible beam is loaded. A method for testing an impact strength of a micro-structure is also disclosed. 1. An apparatus for in-situ testing impact strength of a micro-structure , comprising:a flexible beam, one end of which being fixed;an impact mass block disposed at the other end of the flexible beam and configured to exert an impact on the micro-structure; anda locking member comprising a beam arm and a plurality of locking teeth, wherein the beam arm is perpendicular to the flexible beam and one end of the beam arm is fixed, and wherein the plurality of locking teeth are distributed at intervals along the beam arm, such that the other end of the flexible beam is engaged to one of the plurality of locking teeth when the flexible beam is loaded.2. The apparatus according to claim 1 , wherein by the silicon on glass bonding bulk silicon process claim 1 , patterns of the micro-structure claim 1 , the apparatus and a functional device are formed in the same photolithography process claim 1 , the functional device comprising the same structure with the micro-structure claim 1 , and wherein the movable silicon structures of the micro-structure claim 1 , the apparatus claim 1 , and the functional device are released in the same etching process claim 1 , such that micro-structure is anchored on the silicon wafer on which the functional ...

Mechanical High-G Shock Testing Machines

A shock testing machine including: a movable impact mass upon which one or more components to test are mounted; one or more rails upon which the impact mass is movable; and a brake operatively engageable with the movable impact mass after the movable impact mass has moved a predetermined distance to retard the movement of the movable impact mass such that the components to be tested experience a deceleration profile. 1. A shock testing machine comprising:a movable impact mass upon which one or more components to test are mounted;one or more rails upon which the impact mass is movable; anda brake operatively engageable with the movable impact mass after the movable impact mass has moved a predetermined distance to retard the movement of the movable impact mass such that the components to be tested experience a deceleration profile.2. The shock testing machine of claim 1 , wherein the one or more rails comprises two or more rails.3. The shock testing machine of claim 2 , wherein the brake comprises a brake element corresponding to each of the two or more rails.4. The shock testing machine of claim 1 , wherein the brake is fixed to the movable impact mass.5. The shock testing machine of claim 4 , wherein the brake is movable on the one or more rails.6. The shock testing machine of claim 1 , wherein the brake is movable on the one or more rails.7. The shock testing machine of claim 6 , wherein the one or more rails comprises two or more rails and the brake comprises a brake element corresponding to each of the two or more rails claim 6 , the shock testing machine further comprising a rigid member connecting the brake elements such that the movable impact mass engages the brake elements at the same time after moving the predetermined distance.8. The shock testing machine of claim 1 , wherein the brake is disposed on the one or more rails at the predetermined distance from the movable impact mass and the brake is preset to be engaged with the one or more rails.9. The ...

Devices, Systems and Method For Flooring Performance Testing

In one implementation, a footfall detection assembly comprising a sensor underlayment unit and a data analysis device is provided. The sensor underlayment unit comprises a sensor having a unique sensor identifier and a plurality of zones, wherein the sensor is configured to measure zone capacitance in of the plurality of zones, and a processing unit operably connected to the sensor. The processing unit is configured to receive the measured zone capacitance values from the sensor upon the occurrence of a change in measured zone capacitance of the sensor and generate and transmit a data packet comprising at least the unique sensor identifier and measured zone capacitance values upon occurrence of a change in capacitance of at least one of the plurality of zones of the sensor. The data analysis device is configured to receive the data packet, compare the measured zone capacitance values of the data packet to previously-measured zone capacitance values associated with the sensor underlayment into and generate a result therefrom. 1. A system comprising:a floor covering disposed in an area; and a plurality of sensors, wherein each sensor of the plurality of sensors has a plurality of zones associated therewith and is configured to measure a value of at least one parameter in at least one of the plurality of zones associated therewith; and', 'a processing unit communicably coupled to the plurality of sensors and configured to receive the value of the at least one parameter and generate and transmit a data packet comprising the value of the at least one parameter upon occurrence of a change in the value of the at least one parameter in the at least one of the plurality of zones associated with at least one of the plurality of sensors; and, 'a sensor underlayment unit disposed below the floor covering and comprisinga data analysis device configured to receive the data packet and determine an event of a footfall on the floor covering in the area and a location of the footfall ...

High-G Shock Testing Machine

A shock testing machine including: a test platform for holding one or more objects to be shock tested, the test platform having an impact surface; a fixed member having a surface disposed a predetermined distance from a corresponding surface of the test platform, the test platform being movable such that the surface of the test platform can contact the corresponding surface of the fixed member upon an impact to the impact surface; and a flywheel having one or more cams for contacting the impact surface upon rotation of the flywheel such that the impact of each of the one or more cams on the impact surface causes the surface of the test platform to impact the corresponding surface of the fixed member to produce a shock in the one or more objects to be tested. 1. A shock testing machine comprising:a test platform for holding one or more objects to be shock tested, the test platform having an impact surface;a fixed member having a surface disposed a predetermined distance from a corresponding surface of the test platform, the test platform being movable such that the surface of the test platform can contact the corresponding surface of the fixed member upon an impact to the impact surface; anda flywheel having one or more cams for contacting the impact surface upon rotation of the flywheel such that the impact of each of the one or more cams on the impact surface causes the surface of the test platform to impact the corresponding surface of the fixed member to produce a shock in the one or more objects to be tested.2. The shock testing machine of claim 1 , further comprising a biasing member for biasing the surface of the test platform away from the corresponding surface of the fixed member.3. The shock testing machine of claim 1 , wherein the impact surface comprises first and second impact surfaces claim 1 , the fixed member comprises first and second surfaces each disposed a predetermined distance from a corresponding first and second surface of the test platform ...

TEST DEVICE FOR SIMULATING MOTOR VEHICLE CRASHES AND METHOD FOR OPERATING A TEST DEVICE

The description relates to a method for operating a test device and to a test device for simulating motor vehicle crashes. The test device has a carriage arrangement which is arranged so as to be displaceable along a rail arrangement; a test setup which is arranged on the carriage arrangement and has at least one motor vehicle component to be tested; and an acceleration unit by means of which a force can be transmitted to the carriage arrangement in order to accelerate the carriage arrangement. The acceleration unit has a hydraulic drive cylinder with a piston and a piston rod which is connected to the carriage arrangement. At least one measuring pickup is provided for sensing a pressure which acts in the piston-side region and/or in the piston-rod-side region of the drive cylinder. 2. The test device as claimed in claim 1 ,wherein a first measuring pickup is provided for sensing the pressure which acts in the piston-side region of the drive cylinder, and wherein a second measuring pickup is provided for sensing the pressure which acts in the piston-rod-side region of the drive cylinder; andwherein the control device is configured to set the quantity of hydraulic fluid which is fed into the piston-side region or the piston-rod-side region of the drive cylinder, or discharged therefrom, per time unit, in such a way that the difference between the pressure which acts in the piston-side region and the pressure which acts in the piston-rod-side region assumes a value which is defined or can be defined in advance.3. The test device as claimed in claim 2 ,wherein the difference between the pressure which acts in the piston-side region and the pressure which acts in the piston-rod-side region is proportional to an acceleration force transmitted to the carriage arrangement via the acceleration unit; and wherein the value, which is defined or can be defined in advance, of the difference between the pressure which acts in the piston-side region and the pressure which acts in ...

MODULAR LIGHT GAS ACCELERATOR

A modular light gas accelerator includes a first stage having a chamber having a rear portion and a discharge portion and a barrel located inside the chamber. The barrel has a rear port at the rear portion of the chamber and a discharge port extending outwardly from the discharge portion of the chamber. A piston is slidingly located inside the barrel proximate to the rear port and is adapted to be propelled through the barrel and out of the discharge port. A second stage includes a receiver adapted to receive the piston from the discharge port. The receiver has a receiver passage. A frangible member extends across the receiver passage. A projectile is located downstream of the frangible member. The projectile is adapted to travel along the receiver passage. A target chamber is located at a downstream end of the receiver passage. 1. A modular light gas accelerator comprising: a chamber having a rear portion and a discharge portion;', 'a barrel located inside the chamber, the barrel having a rear port at the rear portion of the chamber and a discharge port extending outwardly from the discharge portion of the chamber; and', 'a piston slidingly located inside the barrel proximate to the rear port and adapted to be propelled through the barrel and out of the discharge port;, 'a first stage includingand a receiver adapted to receive the piston from the discharge port, the receiver having a receiver passage having a first upstream diameter and a second downstream diameter, smaller than the first upstream diameter;', 'a frangible member extending across the second downstream diameter;', 'a projectile located downstream of the frangible member, the projectile being adapted to travel along the receiver passage; and', 'a target chamber located at a downstream end of the receiver passage, such that a target is able to be mounted in the target chamber and be struck by the projectile after the projectile exits the receiver passage., 'a second stage removably attached to the ...

MUZZLE EXIT TESTER

A muzzle exit tester system comprises a barrel having an input end and an exit end, a shock plunger freely movable within the barrel, and a shock plate having a first side that faces the exit end of the barrel. A support isolation structure resiliently supports the shock plate, and receives a portion of the barrel that includes the exit end of the barrel. A pneumatic shock apparatus is operatively coupled to the input end of the barrel. The pneumatic shock apparatus is configured to retract the plunger in the barrel via a vacuum while producing a gas pressure charge, and subsequently release the gas pressure charge, such that the plunger accelerates to the exit end of the barrel and impacts the shock plate. The shock plate is configured to resonate at frequencies and amplitudes corresponding to a shock condition of a gun muzzle exit when impacted by the plunger. 1. A muzzle exit tester system , comprising:a barrel having an input end and an exit end;a shock plunger freely movable within the barrel;a shock plate having a first side that faces the exit end of the barrel;a support isolation structure that resiliently supports the shock plate, and receives a portion of the barrel that includes the exit end of the barrel; anda pneumatic shock apparatus operatively coupled to the input end of the barrel, the pneumatic shock apparatus configured to retract the shock plunger in the barrel via a vacuum while producing a gas pressure charge, and subsequently release the gas pressure charge, such that the shock plunger accelerates to the exit end of the barrel and impacts the shock plate;wherein the shock plate is configured to resonate at frequencies and amplitudes corresponding to a shock condition of a gun muzzle exit when impacted by the shock plunger.2. The system of claim 1 , wherein the barrel comprises a cylindrical tube having a plurality of vent holes located around the portion of the barrel received in the isolation structure.3. The system of claim 1 , wherein the ...

High-G Shock Testing Machine

A shock testing machine including: a test platform upon which one or more objects to be tested are mounted; one or more rails upon which the test platform is movable in a longitudinal direction; and a braking station for retarding a relative motion between the test platform and the braking station, wherein the test platform and the braking station include at least one portion interfering with the relative motion of the test platform and the braking station such that relative movement of the test platform and the braking station past the at least one portion produces a shock lateral to the longitudinal direction. 1. A shock testing machine comprising:a test platform upon which one or more objects to be tested are mounted;one or more rails upon which the test platform is movable; anda braking station having one or more braking elements operatively engageable with one or more corresponding braking surfaces on the test platform after the test platform has moved a predetermined distance relative to the braking station,wherein the one or more braking elements are movable to vary a gap between the one or more braking elements and the one or more braking surface.2. The shock testing machine of claim 1 , further comprising one or more actuators for moving the braking elements.3. The shock testing machine of claim 2 , wherein the one or more actuators comprise one or more piezoelectric actuators.4. The shock testing machine of claim 1 , wherein the one or more braking elements comprise a beveled region such that a portion of the braking element in the beveled region has a thickness that increases with a direction of travel of the test platform.5. A method for shock testing one or more objects claim 1 , the method comprising:mounting the one or more objects to a test platform;movably disposing the test platform on one or more rails;moving the test platform a predetermined distance relative to a braking station;varying a braking amount of the braking station by varying a gap ...

LOW-FREQUENCY DISTURBANCE AND HIGH-SPEED IMPACT TYPE HIGH-PRESSURE TRUE TRIAXIAL TEST APPARATUS AND METHOD

A high-pressure true triaxial test apparatus with capacity of low-frequency disturbance and high-speed impact includes static and dynamic loading frames, four static loading actuators, two dynamic loading actuators and an SHPB mechanism, wherein all actuators are connected with a hydraulic station system; a hollow way is formed in the axial center of each piston shaft of the dynamic loading actuators, a dynamic pressure sensor adopting a hollow ring structure is mounted at the end part of each piston shaft, and the SHPB mechanism applies a high-speed impact load on a rock sample through the dynamic pressure sensors respectively; and the dynamic loading actuators adopt a static pressure oilway balance support sealing manner and are connected with the hydraulic station system, each oilway is provided with an energy accumulator, and flow is increased by the servo valves to drive pistons to perform dynamic response. 1. A low-frequency disturbance and high-speed impact type high-pressure true triaxial test apparatus , comprising:a static loading frame, a dynamic loading frame, a first vertical static loading actuator, a second vertical static loading actuator, a first horizontal static loading actuator, a second horizontal static loading actuator, a first horizontal dynamic loading actuator, a second horizontal dynamic loading actuator and an SHPB (Split Hopkinson Pressure Bar) mechanism, wherein the first vertical static loading actuator, the second vertical static loading actuator, the first horizontal static loading actuator, the second horizontal static loading actuator, the first horizontal dynamic loading actuator and the second horizontal dynamic loading actuator are connected with a hydraulic station system;the static loading frame adopts a square structure, the square center of the static loading frame is a rock sample loading position, and the static loading frame is fixedly mounted on ground by a first base; the first vertical static loading actuator and the ...

IMPACT TESTER DEVICE

Systems and methods for testing an impact response of a material and/or structure to one or more impacts of known magnitude. The systems and methods include a portable impactor device for imparting an impact force on a surface of an engineered structure, wherein the portable impactor device has an adjustable orientation such that an impact may be delivered as an angle ranging from +90° to −90° relative to a horizontal plane. Additionally, the portable impactor device described may be utilized to test an impact response of one or more surface areas of a full-scale prototype structure. 1. An impact tester device comprising:a tube having a first end and a second end, the first end of the tube having a first opening approximately equal in size to a bore of the tube, and the second end of the tube having a second opening measuring less than the bore of the tube;a projectile having an impactor tip positioned within the bore of the tube, and releasably coupled to an interior wall of the tube by a pin;a cylindrical compression block having a first end and a second end, the cylindrical compression block positioned within the bore of the tube between the projectile and the second end of the tube;a linear actuator rod having a first end, a second end, and an axial length, the first end of the linear actuator rod coupled to the second end of the cylindrical compression block, the linear actuator rod configured to translate through the second opening in the tube in an axial direction such that actuation of the linear actuator rod at the second end of the rod urges the cylindrical compression block to move in the axial direction along the tube; anda coil spring positioned between the releasably coupled projectile and the first end of the cylindrical compression block,wherein upon actuation of the linear actuator rod, the compression block compresses the coil spring against the projectile,wherein upon removal of the pin from the interior wall of the tube, stored spring energy in ...

DESTRUCTIVE INSPECTION METHOD AND QUALITY DETERMINATION METHOD FOR VITREOUS SILICA CRUCIBLE

A destructive inspection method of a vitreous silica crucible for pulling a silicon single crystal evaluates a crack state of an inner surface of the vitreous silica crucible supported by a graphite susceptor when a load is instantaneously applied to at least one point on the inner surface via an automatic center punch while pushing the tip portion of the automatic center punch against the inner surface. The destructive inspection method can inspect the vitreous silica crucible under conditions as close to the actual conditions of use as possible. 1. A destructive inspection method of a vitreous silica crucible , characterized by evaluating a crack state of an inner surface of a vitreous silica crucible for pulling a silicon single crystal when a load is instantaneously applied to at least one point on the inner surface via an automatic center punch while pushing a tip portion of the automatic center punch against the inner surface.2. The destructive inspection method of the vitreous silica crucible according to claim 1 , which evaluates a crack state of the inner surface when a load is instantaneously applied claim 1 , via the automatic center punch claim 1 , to a plurality of points claim 1 , respectively claim 1 , along a line on the inner surface extending from a center of a bottom portion of the vitreous silica crucible toward an upper end of a rim.3. The destructive inspection method of the vitreous silica crucible according to claim 1 , which evaluates a crack state of the inner surface when a load is instantaneously applied claim 1 , via the automatic center punch claim 1 , to a plurality of points claim 1 , respectively claim 1 , along a circle on the inner surface at a given distance from the center of a bottom portion of the vitreous silica crucible.4. The destructive inspection method of the vitreous silica crucible according to claim 1 , wherein a magnitude of the load is 50 N or more and 400 N or less.5. A quality determination method of a vitreous ...

DEVICES, SYSTEMS AND METHOD FOR FLOORING PERFORMANCE TESTING

In one implementation, a footfall detection assembly comprising a sensor underlayment unit and a data analysis device is provided. The sensor underlayment unit comprises a sensor having a unique sensor identifier and a plurality of zones, wherein the sensor is configured to measure zone capacitance in the plurality of zones, and a processing unit operably connected to the sensor. The processing unit is configured to receive the measured zone capacitance values from the sensor upon the occurrence of a change in measured zone capacitance of the sensor and generate and transmit a data packet comprising at least the unique sensor identifier and measured zone capacitance values upon occurrence of a change in capacitance of at least one of the plurality of zones of the sensor. The data analysis device is configured to receive the data packet, compare the measured zone capacitance values of the data packet to previously-measured zone capacitance values associated with the sensor underlayment into and generate a result therefrom. 1. A system comprising:a floor covering disposed in an area; and a plurality of sensors, wherein each sensor of the plurality of sensors has a plurality of zones associated therewith and is configured to measure a value of at least one parameter in at least one of the plurality of zones associated therewith; and', 'a processing unit communicably coupled to the plurality of sensors and configured to receive the value of the at least one parameter and generate and transmit a data packet comprising the value of the at least one parameter upon occurrence of a change in the value of the at least one parameter in the at least one of the plurality of zones associated with at least one of the plurality of sensors; and, 'a sensor underlayment unit disposed below the floor covering and comprisinga data analysis device configured to receive the data packet and determine an event of a footfall on the floor covering in the area and a location of the footfall in ...

ROCK IMPACT LOADING-UNLOADING CONFINING PRESSURE TEST SYSTEM AND USAGE METHOD THEREFOR

A rock mechanics test system with impact loading-confining pressure unloading and its usage method. The test system includes bearing frame unit, axial compression loading unit, impact loading unit and confining pressure loading unit. The bearing frame unit includes pedestal, column and cross beam. The column is vertically installed on both sides of the upper surface of the pedestal, and the cross beam is horizontally fixed on the upper part of the column. The axial compression loading unit is fixed at the middle position of the upper surface of the pedestal and is used to exert the axial bottom-up pressure to the sample. The impact loading unit is fixed on the cross beam and is used to exert the axial top-down impact load on the sample. 1. A rock mechanics test system with impact loading-confining pressure unloading comprising:a bearing frame unit includes pedestal, column and cross beam; the column is vertically installed on both sides of the upper surface of the pedestal, and the cross beam is horizontally fixed on the upper part of the column;an axial compression loading unit is fixed at the middle position of the upper surface of the pedestal and is used to exert the axial bottom-up pressure to the sample;an impact loading unit is fixed on the cross beam and is used to exert the axial top-down impact load on the sample;a confining pressure loading unit is installed between the axial compression loading unit and the impact loading unit, and is used to exert the confining pressure in the horizontal plane to the sample;wherein,the confining pressure unloading unit is used to unload the confining pressure of one side wall direction in the horizontal plane of the sample;the loading control unit is used to control the axial compression loading unit, the impact loading unit and the confining pressure loading unit for loading, respectively;the monitoring unit is used to monitor the stress, deformation and failure characteristics of the sample during the whole process of ...

DEVICES, SYSTEMS AND METHOD FOR FLOORING PERFORMANCE TESTING

In one implementation, a footfall detection assembly comprising a sensor underlayment unit and a data analysis device is provided. The sensor underlayment unit comprises a sensor having a unique sensor identifier and a plurality of zones, wherein the sensor is configured to measure at least one parameter in each of the plurality of zones, and a processing unit operably connected to the sensor. The processing unit is configured to receive the measured parameter values from the sensor upon the occurrence of a change in measured parameters and generate and transmit a data packet comprising at least the unique sensor identifier and measured parameters upon occurrence of a change in measured parameters of at least one of the plurality of zones of the sensor. The data analysis device is configured to receive the data packet, compare the measured parameter values of the data packet to previously-measured parameter values associated with the sensor underlayment into and generate a result therefrom. 1. A footfall detection assembly , comprising: a sensor having a unique sensor identifier and a plurality of zones, wherein the sensor is configured to measure at least one parameter value in each of the plurality of zones; and', 'a processing unit operably connected to the sensor and configured to receive the measured parameter values from the sensor and generate and transmit a data packet comprising at least the unique sensor identifier and measured parameter values upon occurrence of a change of the at least one measured parameter in at least one of the plurality of zones of the sensor; and, 'a sensor underlayment unit, comprisinga data analysis device configured to receive the data packet, compare the measured parameter values of the data packet to previously-measured parameter values associated with the sensor underlayment unit and generate a result therefrom.2. The footfall detection assembly of claim 1 , wherein the plurality of zones comprises from about 2 to about 12 ...

Evaluation method of impact test and impact tester

An evaluation method of an impact test and an impact tester are provided. A personal computer includes, as a functional configuration, a data extraction section extracting from time-series data of force a data section for obtaining a natural frequency of an impact tester in a natural vibration analysis, an analysis section carrying out a frequency spectrum analysis on the extracted data section, and a vibration waveform removal section removing a natural vibration waveform of the impact tester from force data. The data extraction section, the analysis section and the vibration waveform removal section are respectively stored as a data extraction program, an analysis program and a vibration waveform removal program in a memory.

EVALUATION METHOD OF IMPACT TEST AND IMPACT TESTER

An evaluation method of an impact test and an impact tester are provided, capable of simply and accurately obtaining a natural frequency of the impact tester without adding a special machine for measuring the natural frequency of the impact tester. A personal computer includes, as a functional configuration, a data extraction section extracting from time-series data of force a data section for obtaining a natural frequency of an impact tester in a natural vibration analysis, and an analysis section carrying out a frequency spectrum analysis on the extracted data section. The data extraction section and the analysis section are respectively stored as a data extraction program and an analysis program in a memory. 1. An evaluation method of an impact test in which an impact is rapidly applied to a test piece , comprising:a data extraction step in which a data section for obtaining a natural frequency of an impact tester is extracted from time-series data detected by a force detector by carrying out the impact test, wherein in the data extraction step, the time-series data is separated before and after force is removed from the test piece, and data after the force is removed from the test piece is used as the data section for obtaining the natural frequency of the impact tester; andan analysis step in which a frequency spectrum analysis is carried out on the data section extracted in the data extraction step.2. An impact tester rapidly applying an impact to a test piece , comprising:a load structure, applying force to the test piece;a force detector, detecting the force applied to the test piece; anda control device, comprising a memory section storing time-series data detected by the force detector,wherein the control device comprises:a data extraction section, extracting from the time-series data stored in the memory section a data section for obtaining a natural frequency of the impact tester; andan analysis section, carrying out a frequency spectrum analysis on the ...

Mechanical Rotary Shock Testing Machines

A linear and rotary shock-testing machine including: a base; a shaft rotatably and translationally movable relative to the base; a test disc for holding one or more specimens to be tested, the test disc being rotatable with the shaft; one of a cam and cam follower fixed relative to the base; and an other of the cam and cam follower fixed to the test disc, wherein the shaft being driven to provide a rotational shock to the one or more test specimens; and the cam is shaped such that the cam follower follows the cam to urge the test disc into a translational motion while rotating to provide translational shock to the one or more specimens. 1. A linear and rotary shock-testing machine comprising:a base;a shaft rotatably and translationally movable relative to the base;a test disc for holding one or more specimens to be tested, the test disc being rotatable with the shaft;one of a cam and cam follower fixed relative to the base; andan other of the cam and cam follower fixed to the test disc,wherein the shaft being driven to provide a rotational shock to the one or more test specimens; andthe cam is shaped such that the cam follower follows the cam to urge the test disc into a translational motion while rotating to provide translational shock to the one or more specimens.2. The linear and rotary shock-testing machine of claim 1 , further comprising a biasing element for biasing the cam follower into engagement with the cam.3. The linear and rotary shock-testing machine of claim 1 , further comprisinga first shaft rotatable relative to the base, the first shaft being driven to rotate;a first wheel rotatable with the first shaft;the shaft being a second shaft rotatable relative to the base;a second wheel rotatable with a first portion of the second shaft; andthe test disc being rotatable with a second portion of the second shaft;wherein the first and second wheels are aligned with each other such that the second wheel is driven by the first wheel when a material is ...

Impact experience device of safety hat

PURPOSE: An impact experience device of a safety hat is provided to add a virtual impact on a lateral surface of the safety hat, thereby educating the wearer to feel aware and necessary for them to wear a safety hat and a chin strap. CONSTITUTION: An impact experience device of a safety hat comprises a body which is installed in a structure at constant height, a hitting member, a first driving unit(300), a controller(400), and a height adjusting member. The hitting member is horizontally axis-joined in the lower part of the body and a hitting end portion rotates and hits a lateral surface of the safety hat of the wearer standing by in a downward side around a rotation center. The first driving unit is installed in the inside of the body and delivers a torque to the hitting member by air pressure supplied from the outside, thereby vertically rotating the hitting end portion. The controller controls the operation of the first driving unit and controls the hitting member in order to hit the safety hat and return to its original position. The height adjusting member varies the height of the body according to the height of the wearer. [Reference numerals] (300) First driving unit; (400) Controller; (410) Operation switch; (510) Second driving unit; (520) Detection sensor

コンクリ−ト圧縮強度測定方法及び装置

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

A kind of supporting roadway surrounding rock strength test device and strength determining method

本发明公开了一种巷道围岩支护强度试验装置及强度确定方法，其包括：承载框架单元，包括底座、立柱和横梁，所述立柱竖直设置在所述底座的上表面两侧，所述横梁水平固定在所述立柱的上部；轴压加载单元，固定在所述底座的上表面中间位置处，且用于对试件施加自下而上的轴向压力；冲击加载单元，固定在所述横梁上，且用于对试件施加自上而下的轴向冲击载荷；围压加载单元，设置在所述轴压加载单元和冲击加载单元之间，所述围压单元用于对试件施加水平面内的围压；还包括加载控制单元、监测单元和数据分析单元。本发明能与现场巷道围岩实际应力状态较好吻合，获得的支护强度能较好地保障围岩安全稳定，准确度高，且试验操作简单方便。

The retracting device and soft recovery method of shock wave loading experiment sample

本发明提供了一种冲击波加载实验样品的回收装置，涉及冲击动力学领域，冲击波加载实验样品的回收装置包括回收舱、封盖和缓冲材料层，所述回收舱的一端为样品固定端，所述回收舱的另一端为回收端，所述封盖与所述回收端可拆卸连接，用于封闭所述回收端，所述缓冲材料层贴合所述封盖设置，所述缓冲材料层包括多层缓冲层，所述多层缓冲层并排贴合设置，所述多层缓冲层的波阻抗沿所述样品固定端指向所述回收端的方向递增。本发明还提供了一种软回收方法。本发明能够拓宽软回收的样品靶的碰撞速度范围，避免样品二次损伤，软回收效果好，而且在回收高速的样品靶的时候，所需要的缓冲材料层体积小，重量轻，便于安装和实施。

Releasing device for free fall and testing method using the same

본 발명은 크레인의 크레인훅과 연결될 수 있게 형성된 지지판과, 상기 지지판의 하면에 회전 가능하게 설치되며 중량체에 연결된 로프를 걸 수 있게 형성되는 고리 핀과, 상기 지지판에 설치되며 외부에서 공급된 유압을 저장하는 유압 저장 탱크와, 상기 유압 저장 탱크의 유압에 의해 구동되며, 상기 고리 핀과 록킹 또는 록킹 해제 가능하게 구성되는 록킹 유닛, 및 상기 록킹 유닛에 전기적으로 연결되며, 상기 중량체가 자유 낙하될 수 있도록 상기 록킹 유닛에 상기 고리 핀의 록킹 해제를 위한 신호를 인가하는 제어부를 포함하는 자유낙하 릴리즈 장치를 개시한다.

Impact test system using energy frame

본 발명은 에너지 프레임을 이용한 충격 시험 장치에 관한 것으로서, 보다 상세하게는, 에너지 프레임을 이용하여 충격파를 발생시켜 시편에 대한 충격 시험을 수행하는 장치에 관한 것이다. 인장 수단으로부터 인장 하중을 인가 받는 당김 봉, 상기 당김 봉으로부터 인장 하중을 전달 받고, 상기 전달된 인장 하중을 탄성 에너지로 변환하여 시편을 중심으로 양 측면에 대칭적으로 위치하는 복수의 바(bar) 형태의 몸체에 저장하며, 상기 당김 봉으로부터 전달되는 인장 하중의 차단으로 인해 상기 저장된 탄성 에너지를 충격파로 변환하여 상기 복수의 바 형태의 몸체를 통해 충격 시험 대상인 시편으로 인장 충격을 전달하는 에너지 프레임 및 상기 당김 봉 및 상기 에너지 프레임에 연결되어, 상기 당김 봉에 미리 설정된 임계 인장 하중이 인가될 경우, 상기 당김 봉으로부터 상기 에너지 프레임으로 전달되는 인장 하중을 차단하는 연결 수단을 포함할 수 있다. The present invention relates to an impact test apparatus using an energy frame, and more particularly, to an apparatus for performing an impact test on a specimen by generating a shock wave using the energy frame. A pull rod that receives a tensile load from a tensioning means, a plurality of bars receiving the tensile load from the pulling rod, and converting the transferred tensile load into elastic energy and symmetrically positioned at both sides about a specimen; An energy frame which is stored in a body of a shape, and converts the stored elastic energy into a shock wave due to the interruption of the tensile load transmitted from the pulling rod, and transmits the tensile shock to the test target specimen through the plurality of bar-shaped bodies; It may be connected to the pull rod and the energy frame, when the predetermined critical tensile load is applied to the pull rod, it may include a connecting means for blocking the tensile load transmitted from the pull rod to the energy frame.

Supercritical carbon dioxide pulse fracturing and the test integrated experimental provision of permeability and method

本发明公开了一种超临界二氧化碳脉冲致裂与渗透率测试一体化的实验装置及方法，包括第一气源、第二气源、二氧化碳气源、第一节流阀、第二节流阀、气动阀、电磁阀、空压机、时间继电器、转换模块、具有数据采集功能的控制主机、第一流量计、第二流量计、第一压力传感器、第二压力传感器、温度传感器、第一截止阀、第二截止阀、第三截止阀、第四截止阀、气体回收罐和原位环境模拟系统，原位环境模拟系统包括岩芯夹持器、温度控制腔体和轴围压加载终端，能实现压裂前的岩芯原始渗透率测试、超临界二氧化碳脉冲压裂岩芯和压裂后的岩芯渗透率测试，具有智能化、操作方便等优点，并且更为逼真的模拟了现场工作条件，从而使测量结果更为真实、准确。

Impact test method and device

本发明提供一种能掌握与传送带等对象物的实际使用相符的耐冲击性的冲击试验方法以及装置。使冲击赋予体10相对于设置于设置台2的试验样品S自由落下，冲击赋予体10与试验样品S碰撞时，通过载荷计5和位移计6分别测定作用于试验样品S的冲击力和冲击赋予体10相对于试验样品S的陷入量H，基于该测定出的冲击力和陷入量H，通过运算部8计算出冲击赋予体10与试验样品S碰撞时由试验样品S吸收的损耗能E1。

Anchoring body dynamic load impact resistance in-situ measurement device and testing method

本发明涉及一种锚固体抗动载冲击性能原位测量装置及测试方法，属于矿山巷道锚杆支护技术试验技术领域。装置包括发射装置、发射头、导杆、底座、壳体、高压气瓶、压力传感器、数据采集装置和数据处理装置，其中，壳体为中空圆柱体，壳体一端设置有底座，底座内设置有压力传感器，底座上设置有导杆，导杆上设置有发射头，发射头上方设置有发射装置，发射装置外接有高压气瓶，发射装置和压力传感器均连接至数据采集装置，数据采集装置连接有数据处理装置。本发明安装方便，实用性和可操作性强，通过高压气瓶和发射装置对锚杆施加动载，且荷载稳定可靠，大小可调，实现现场条件下锚杆及围岩在受到动载荷作用下的抗冲性能的测试。

Two-stage supercharging large-caliber air cannon for laboratory

本发明公开了一种实验室用二级增压大口径空气炮，包括快速装填模块、后端模块、释放机构、第一炮管、第二炮管、二级增压模块和气压缸。实验室环境条件下，实验装置安全气压一般不超过1MPa，由于气压及高压气室容积限制，常规实验室用单级气源空气炮所获得的试验弹发射速度有限。本发明设计了一种实验室用二级增压大口径空气炮，当所有气室内气体达到要求压强时，释放机构释放试验弹，第一级气源驱动试验弹在第一炮管中加速运动；当试验弹通过二级增压模块时，第二级高压气体作用在试验弹上，接力推动试验弹在第二炮管中继续加速运动。本发明可在实验室有限气压条件下实现测试体的高速发射。

The impact experiment apparatus and its experimental method of a kind of brace pre axial force, moment of flexure

本发明公开了一种配合冲击实验的预加轴力、弯矩的试件固定装置及其实验方法，其固定装置包括刚性底座、滑动端荷载施加组件、固定端荷载施加组件、摆锤、试件、数据采集系统和计算机终端共7部分，其关键技术点在于，经气动装置驱动的加载压头嵌入可灵活调整偏心距的齿形轨道压缩试件，实现多种初始轴力和弯矩工况组合；冲击实验时，瞬时冲击力导致试件侧向变形并引发轴向收缩，气动装置活塞伸长，持续施加渐弱的轴力和弯矩直至构件失效，准确模拟结构倒塌过程中内力的实际演化规律；与此同时，数据采集系统实时记录荷载、位移变化和试件构型演变过程，为评估试件的抗倒塌能力及建立准确的力学分析模型提供数据支持。本发明整体结构简单、紧凑，实验操作简单。

Three-stage hydraulic speed generator operating in dual mode for shock test and driving method thereof

본 발명의 일 실시 예에 따른 저속 발사 모드 또는 고속 발사 모드로 질량체를 가속시키는 속도 발생 장치는, 내부에 슬라이딩 가능하게 설치된 제1 슬라이더에 의해 분리된 상단과 하단 각각에 가스와 제1 오일이 가압된 상태로 충전되는 가압 챔버; 상기 가압 챔버와 연통되게 설치되고, 상기 가압 챔버로부터 공급된 상기 제1 오일의 압력에 의해 슬라이딩하는 제2 슬라이더가 내부에 설치된 분배 챔버; 상기 분배 챔버와 연통 가능하도록 설치되고, 내부에 슬라이딩 가능하게 설치된 가속 피스톤이 가압된 제2 오일에 의해 슬라이딩하는 가속 챔버; 및 상기 가속 챔버로 가압된 상기 제2 오일을 공급하는 구동 축압기를 포함하고, 상기 속도 발생 장치가 상기 저속 발사 모드로 동작하는 경우, 상기 가속 챔버는 상기 제2 슬라이더에 의해 상기 분배 챔버와 연통되지 않고, 상기 가속 피스톤은 상기 제2 오일이 공급되는 압력에 의해 상기 질량체를 가속시킬 수 있다. In the speed generating device for accelerating a mass in a low-speed firing mode or a high-speed firing mode according to an embodiment of the present invention, the gas and the first oil are pressurized respectively on the upper and lower ends separated by the first slider slidably installed therein. a pressurized chamber filled in a state of being; a distribution chamber installed in communication with the pressure chamber and having a second slider installed therein that slides by the pressure of the first oil supplied from the pressure chamber; an acceleration chamber installed in communication with the distribution chamber and in which an acceleration piston slidably installed therein slides by the pressurized second oil; and a driving accumulator for supplying the pressurized second oil to the acceleration chamber, wherein when the speed generating device operates in the low-speed firing mode, the acceleration chamber communicates with the distribution chamber by the second slider Instead, the acceleration piston may accelerate the mass body by the pressure to which the second oil is supplied.

An apparatus for testing impact resistance performance by high velocity impact of projectile

본 발명은 하나의 발사장치를 이용하여 다양한 재원의 비상체를 발사할 수 있고, 발사속도 조절범위도 기존의 시험장치에 비하여 커서 폭넓은 시험데이터를 얻을 수 있도록 해주는 내충격 시험장치에 관한 것이다. 구체적으로는 발사부의 발사관의 내경에 대응하는 외경을 가진 원판형 부재인 캐리어 및 상기 캐리어의 전방에 장착되는 비상체를 특징으로 하여 상기 비상체를 장착한 캐리어가 발사관에 배치되어 가속된 뒤, 회수챔버에 진입하고, 상기 회수챔버 내에서 상기 비상체가 상기 캐리어로부터 분리되어 시험편을 가격할 수 있도록 구성된 것을 특징으로 하는 내충격 시험장치에 관한 것이다. The present invention relates to an impact test apparatus that can launch an emergency body of various sources using a single launching apparatus, and the launching speed control range is larger than that of a conventional testing apparatus to obtain a wide range of test data. Specifically, the carrier is a disk-shaped member having an outer diameter corresponding to the inner diameter of the launch tube of the launch unit, and an emergency body mounted on the front of the carrier. It enters the chamber, and in the recovery chamber relates to an impact resistance test apparatus, characterized in that configured to be able to strike the test piece separated from the carrier.

Method and apparatus for non-destructive classification

A kind of tenderness fast non-destructive detection method based on air-flow pulse and laser ranging

本发明涉及一种基于气流脉冲和激光测距的嫩度快速无损检测方法，包括如下步骤：S1、样品采集及位移信息采集，并形成位移曲线；S2、获得嫩度理化值；S3、对S1中的位移曲线提取6个参数；S4、采用多元函数对S1中的位移曲线进行拟合，得到6个多元函数拟合特征参数；S5、建立三种回归预测模型；S6、比较三种回归预测模型的精度，获得嫩度预测最佳模型，利用所述预测最佳模型可获取待测禽畜肉样品嫩度预测值。本发明，基于气流脉冲和激光测距检测禽畜肉类嫩度，通过激光位移传感器采集位移变化数据，建立嫩度和位移曲线之间的预测模型，用于最终检测，具有非破坏性、快速无损的优点。

Device and method for testing dynamic mechanical properties of concrete under high strain rate

本发明公开的一种高应变率下混凝土动态力学性能试验装置及方法，通过使用压电石英晶体传感器代替传统应变片、加设橡胶整形片能解决动态力学试验方法存在的问题，具体的，在入射杆和透射杆杆端加设压电石英晶体传感器，压电石英晶体传感器的设置能保证试验结果的精度，相比于应变片灵敏程度高出2‑3个数量级，在入射杆靠近子弹杆端中心处加设橡胶整形片，橡胶整形片的设置，更好地减小应力波的弥散，使测试结果更加精确，从而建立了一种实验相对简单、结果相对精确的高应变率下混凝土动态力学性能的试验方法。

A kind of vertical sound loading tester of coal petrography sample true triaxial

发明涉及一种煤岩样真三轴竖向动静加卸载试验机，适用于再现地下矿井开采过程中冲击矿压、岩爆等煤岩动力灾害现象。试验系统由三轴加载系统、测量控制系统、动力加载系统组成。X、Y轴分别设有四柱和两柱单活塞缸的双高频响伺服缸，并安装在可由升降伺服机构沿Z轴方向驱动的同一水平平台上，其中Y轴一方向设有卸载缸，实现一面应力快速卸载，Z轴设有四柱中空式双活塞杆单伺服缸，并配置回弹式位移传感器，测量数据反馈于升降伺服机构，保证水平X、Y轴加载中心始终交于一点且中心点不变。高速伺服缸安装在Z轴上，提供动力加载源。试验机可模拟煤岩试样的真三轴静态加载状态、Z轴冲击动力加载状态、Y轴固定速率或快速应力卸载状态。

Glass detecting system with titanium alloy rack impact combined with polish ring, gear turnover plate and circular rail pressing plates

本发明涉及一种钢化玻璃测试检验系统，钛合金齿条冲击联合光环齿轮翻板圆轨压板玻璃检测系统，作为改进：测试翻板上平面上固定着圆轨道转角压板组件，一侧的翻板转轴上还固定有传动齿轮，传动齿轮配合着手动齿轮，手动齿轮可旋转固定在手动轮轴上；本发明采用纵向螺杆带动纵向座螺母作前后移动，横向螺杆带动横向座螺母作左右移动，再结合摄像电机带动升降齿条作上下移动，继而摄像机架也作上下移动，最终实现工业摄像机三维任意移动；气缸冲击器上的横杆万向接头与光环构件上的斜柄万向接头之间由联动连杆相连接实现联动，提高了操作效率；采用圆轨道转角压板组件，实现了对不同规格尺寸以及不同夹角的四边形玻璃作连续调节固定。

Horizontal type pulse shock tester

본 발명은 수중폭파환경에시 생성되는 이중 충격파를 지상에서 모사하여 시험체에 대한 충격생존성을 측정할 수 있는 수평형 충격파 시험기에 관한 것이다. 본 발명에 따른 수평형 충격파 시험기는, 시험체(S)가 탑재된 정지 질량체(M2)의 일측에 설치된 제1 충격파 형성부(10)로부터 입력되는 1차 충격파에 의해 2차 충격파가 형성되는 제2 충격파 형성부(20)와, 상기 2차 충격파의 주기와 크기를 상기 1차 충격파의 주기와 크기에 따라 가변시키도록 상기 제2 충격파 형성부를 제어하는 충격파 제어부(30)를 포함하는 것을 특징으로 한다. The present invention relates to a horizontal shock wave tester capable of measuring the impact survivability of a specimen by simulating a double shock wave generated in an underwater explosion environment on the ground. The horizontal shock wave tester according to the present invention is characterized in that the second shock wave is formed by the primary shock wave inputted from the first shock wave forming section 10 provided on one side of the stationary mass M2 on which the test object S is mounted, And a shock wave control unit 30 for controlling the second shock wave forming unit to vary the period and size of the secondary shock wave according to the period and size of the primary shock wave .

The Hopkinson pull rod device and method of coupled static-dynamic loadingi in a kind of hot environment

本发明公开一种高温环境中动静组合加载的霍普金森拉杆装置及方法，该装置主要由发射系统、试验系统、轴压系统及加热炉等组成。发射系统由子弹、发射腔、放气阀及进气阀等构成，试验系统由入射和透射拉杆、吸收杆、粘结/夹持型拉伸夹具构成，轴压系统由挡板、连杆、作动器及液压油泵组成，加热炉由绝热框、发热器、温度传感器及温控系统等组成。利用本发明装置及方法，可开展岩石、混凝土等材料在不同压缩静应力或温度作用下应变率为10 1 ～10 3 s ‑1 的动态拉伸力学与破坏特征测试，填补了现有霍普金森拉杆装置无法开展动静组合加载或温压耦合条件下的岩石、混凝土等材料动态直接拉伸测试试验研究的空白。

Apparatus and method for manufacturing property evaluation of specimen of tow prepreg

The present invention relates to a mold having a tow prepreg, which is formed of a releasable material to prevent the tow prepreg from sticking, a first fixing part formed at one side of the mold and fixing one end of the tow prepreg, A second fixing part which is formed on the other side of the mold so as to face the first fixing part and fixes the opposite end of the tow prepreg, a releasable lid which is formed on the upper side of the mold and keeps the shape of the tow prepreg, And a tensile force applying unit for applying a tensile force so as to receive the same tensile force as the forming conditions. The present invention also provides a method for preparing a specimen for evaluating tow properties of a tow prepreg using a specimen production apparatus for evaluating tow prepreg properties, comprising the steps of: (a) preparing a tow prepreg; (b) (C) a second fixing step of fixing the other end of the tow prepreg to the second fixing part, (d) a second fixing step of fixing the other end of the tow prepreg to the first fixing part, (E) covering the upper side of the mold on which the tow prepreg is installed with a releasable lid to keep the shape of the tow prepreg flat; and (f) after covering the releasable lid, the tow prepreg is hot- The present invention relates to a method for manufacturing a specimen for a tow prepreg property evaluation test. In addition, it is possible to provide a specimen produced by using a specimen manufacturing apparatus for the tow prepreg evaluation test and a manufacturing method.

Method and arrangement for nondestructive classification

Method and device for nondestructive determination of rigidity, strength and/or structural properties of preferably oblong and/or plate-shaped objects (11), alternatively determination of the geometrical dimensions of the object, through impact excitation and registration of resonance frequencies of natural modes of the object. According to the invention resonance frequency from at least one of the natural modes of the object is used, which resonance frequency is achieved by bringing the object (11) in vibration by means of a stroking body (24, 31, 38), and substantially controlling the initiation of the motion of the stroking body (24, 31, 38) and subsequent physical impact in time and space by motion of the object (11).

Supporting structure applying gravity compensation mechanism and impact control system having the supporting structure

The present invention relates to a support structure having a gravity compensation mechanism applied thereto which accurately applies a desired impulse and removes a rebound effect, and an impact application system having the same. The impact application system comprises: a support structure to which a gravity compensation mechanism is applied; and a supporting bed supported by the support structure and supporting a subject of impact application. The support structure includes: an elastic member; a vertical support fixing one end of the elastic member; a horizontal support fixing the other end of the elastic member and rotating based on a rotation shaft located at one end thereof meeting one end of the vertical support; and a weight support unit connected to the other end of the horizontal support, in contact with a bottom surface of the supporting bed, and supporting the supporting bed.

Impact testing apparatus for testing behavior of object i.e. automobile, has guiding rod contacting with cylindrical surface of vertical rollers and for rotating vertical rollers when guiding rod moves in translation

The apparatus has an impacting element (5) placed in collision with a to-be-tested object (3). A guiding rod (4) has an end (42) integrated to the element and a length parallel to a direction of translation of the element. A bearing (7) includes vertical rollers and translationally guides the rod. Horizontal rollers are rotatably mounted in the bearing. The vertical rollers extend perpendicular to the horizontal rollers and to length of the rod, where the rod is in contact with a cylindrical surface of the vertical rollers and rotates the vertical rollers when the rod moves in translation.

DEVICE FOR GENERATING IMPACTS ON A STRUCTURE

DEVICE FOR THE CREATION OF RAMS, ESPECIALLY IN HYDRAULIC PIPES.

SHOCK TEST DEVICE FOR TESTING THE BEHAVIOR OF AN OBJECT DURING A SHOCK.

Dispositif (1) d'essais de choc pour tester le comportement d'un objet (2) lors d'un choc, comprenant:- un premier élément (5) déplaçable jusqu'en collision avec l'objet à tester, et- un moyen de poussée (11 ) pour déplacer le premier élément,caractérisé en ce que le premier élément (5) comprend un moyen amovible contre lequel le moyen de poussée vient en contact pour permettre la mise en mouvement du premier élément et en ce que le moyen de poussée comprend un premier moyen de guidage (10) d'un deuxième élément (8) et permet de déplacer celui-ci jusqu'en collision avec l'objet à tester lorsque le moyen amovible est déposé. A crash test device (1) for testing the behavior of an object (2) upon impact, comprising: - a first member (5) movable to collision with the object to be tested, and- thrust means (11) for moving the first element, characterized in that the first element (5) comprises a removable means against which the thrust means comes into contact to enable the movement of the first element and that the means thrust member comprises a first guide means (10) of a second element (8) and allows to move it until collision with the object to be tested when the removable means is deposited.

METHOD AND APPARATUS FOR DETERMINING STATIC AND DYNAMIC CHARACTERISTICS OF VISCO-ELASTIC MATERIAL

L'invention est relative à un procédé et un appareil pour la détermination des caractéristiques d'une matière visco-élastique. A l'aide d'une force F, on applique à cette matière une déformation constante prédéterminée par compression ou impression et on mesure l'établissement de la force F, à partir d'un moment zéro, et sa décroissance après que la déformation constante a été atteinte, en fonction du temps et on détermine les caractéristiques de la matière sur la base d'une série de formules dans lesquelles est introduite la force mesurée, l'appareil comportant un corps de pression 2 fixé conjointement avec un capteur de force 4 à un élément mobile 5, des moyens de détection étant prévus pour la mise en service du capteur de force lors du déplacement de l'élément 5 précité. (CF DESSIN DANS BOPI) The invention relates to a method and apparatus for determining the characteristics of a viscoelastic material. Using a force F, we apply to this material a predetermined constant deformation by compression or printing and we measure the establishment of the force F, from a zero moment, and its decrease after the constant deformation has been reached, as a function of time and the characteristics of the material are determined on the basis of a series of formulas into which the measured force is introduced, the apparatus comprising a pressure body 2 fixed together with a force sensor 4 to a movable element 5, detection means being provided for the activation of the force sensor during the displacement of the aforementioned element 5. (CF DRAWING IN BOPI)

Device for measuring restitution rate of matress

The present invention relates to an apparatus to measure an elastic rebound rate of a mattress, capable of precisely measuring an elastic rebound rate of a mattress, and enhancing stability and efficiency in an elastic rebound rate measurement work of the mattress. According to the present invention, the elastic rebound rate measurement apparatus comprises: a weight fallen on and rebounded from an upper surface of a mattress; a horizontal support unit installed by being separated from the upper surface of the mattress as much as a predetermined height by a vertical support bar; a support unit to selectively support the weight with respect to the horizontal support unit; a first sensing unit to detect a falling time and a re-falling time after rebound of the weight; and a control unit to calculate an elastic rebound rate of the mattress based on information detected in the first sensing unit and control the elastic rebound rate measurement apparatus.

Mechanical rotary shock testing machines

A rotary shock-testing machine including: a base; a first shaft rotatable relative to the base, the first shaft being driven to rotate; a first wheel rotatable with the first shaft; a second shaft rotatable relative to the base; a second wheel rotatable with a first portion of the second shaft; and a test disc for holding one or more specimens to be tested, the test disc being rotatable with a second portion of the second shaft; wherein the first and second wheels are aligned with each other such that the second wheel is driven by the first wheel when a material is introduced into a gap between a surface of the first wheel and a corresponding surface of the second wheel.

Multi-axial machine for dynamic tests on large structures

ABSTRACT OF THE DISCLOSURE Machine for multi-axial dynamic tests on a large test piece made of metal or of composite material Each axis of the machine consists of a cable securing structure, a steel cable for applying a dynamic test to the test piece, either in tension or in compression, a hydraulic jack for tensioning the cable between one of its ends and a cable releasable mechanism connected to the cable securing structure by means of explosive bolts. The releasable mechanism secures the cable to the cable securing structure before the test and permits the propagation of a loading wave to the test piece, the latter being secured to a bunker. Once the explosive bolts break, a recoil shock absorber prevents the cable to pass in compression after the test piece is broken, some oscillation preventing holders limiting lateral oscillations of the cable.

Collision test apparatus

A collision test apparatus (20) comprises input (22) and output members (23) formed from incompressible liquids and between which is positioned a sample (24) whose impact characteristics are to be measured. A compression wave is input to the input member (22) and propagated through the sample (24) and into the output member (23). Suitable detectors (33, 34) detect the input compression wave, output compression wave and any part of the input compression wave reflected off the sample (24).

Cylinder impact test device and test method

本公开提供了一种气缸冲击试验装置及试验方法，属于伸缩缸试验技术领域。自动截止部件的安装组件还具有沿滑动槽的轴向相互间隔的且一端均与滑动槽的周壁连通的换位控制孔、关闭压力连接孔、测试连接孔与启动连接孔，滑动密封柱插设在滑动槽内且滑动密封柱上的环形推动槽极环形控制槽。在测试气缸的整体测试过程中，不需要对启动阀、关闭压力提供部件及冲击气瓶的压力进行实时监测，仅控制测试开关阀，自动截止部件配合冲击气瓶的上限压力与关闭压力，可实现测试气缸的完整测试，不用对测试气缸之外其他结构的各种数据进行额外处理，降低处理器的要求，整体测试过程简单，降低气缸的测试成本并减少气缸所需的测试时长。

Test the test specimen component and method of testing of rock I II mixed mode dynamic fracture toughness

本发明公开了一种用于岩石I‑II复合型动态断裂韧度测试的试件组件及测试方法，试件组件包含带有切槽和加载平台的试件本体以及支撑抵压试件本体的柱状压头，试件本体为半圆盘形的板块，切槽从半圆盘形试件的直边平面沿半圆盘形试件的轴对称面伸向试件内部，加载平台位于半圆盘形试件圆弧面的中央，台平面平行于试件直边平面；所述压头为直弧柱面压头。测试时两个柱状压头分别位于切槽两侧，将试件组件置于霍普金森压杆测试装置的入射杆和透射杆之间，利用测试装置的冲击杆对试件进行撞击，由应变信号测试出岩石试件I‑II复合型动态断裂韧度。本发明大大简化了岩石I‑II复合型动态断裂韧度测试试件的制备过程和岩石I‑II复合型动态断裂韧度测试过程。

Multiispindle dynamic tester for heavy structure of plural materials

Improvements in high-speed traction machines. (Machine-translation by Google Translate, not legally binding)

Ejection type excitation device with adjustable force amplitude

本发明公开了一种可调力幅的弹射式激励装置，属于激励力测试装置领域；所要解决的技术问题是提供了一种力幅可调，用于测量狭小复杂结构表面，确保激励力的大小和规律一致的弹射式激励装置；解决该技术问题采用的技术方案为：一种可调力幅的弹射式激励装置，包括弹射器，弹射器一侧设置有扳机手柄装置，弹射器内部设置有活动锤头体，可以调节弹射幅度，活动锤头体上设置有ICP力传感器，弹射器外侧设置有数采频响分析装置，数采频响分析装置与ICP力传感器相连，通过定幅度的激励对结构表面进行测量；本发明可广泛应用于激励力测试装置领域。

Test equipment for impact test and use method thereof

本发明属于冲击试验技术领域，具体涉及一种冲击试验的试验设备，还涉及上述冲击试验设备的使用方法。试验设备包括：丝杠副、传动丝杠以及在传动丝杠上端同轴设置的同步带轮，同步带轮受同步带驱动，同步带受伺服电机和减速机驱动；锤体，在丝杠副下方，并滑动连接在导向光杆上；移动横梁，位于锤体上方，两端分别固定设置在丝杠副上，且分别滑动套接在传动丝杠与导向光杆上；抓脱锤装置，设置在移动横梁上，用于抓放脱锤。使用方法包括：锤体的抓取；锤体的提升；锤体的释放；多次重复试验并得出结论。利用本试验设备，可以克服摩擦等损失，准确模拟或还原试验块所受的实际冲击能量，使得试验更加准确可靠。

Artillery gun shock simulator

A weapon shock simulator testing arrangement having a gun tube with a breech mechanism to close its rearward end and extension tubes connected to its forward muzzle end terminating with a sealing cap. A metering sleeve, having a plurally apertured cylindrical sidewall between its outwardly directed end flanges, is positioned in an internally enlarged annulus of the gun tube that defines a breech chamber. A piston or projectile containing a mechanical time fuze test sample is slidably mounted in the metering sleeve and adopted to operatively spin through the gun tube rifling grooves when moved forwardly by low and high fluid pressures from controlled sources. A regulated intermediate fluid pressure is delivered to the forwardmost extension tube adjacent the sealing cap to cushion and retard or stop the fired specimen carrier prior to its extraction for inspection or observation purposes.

Material test noise removal method and material tester

Impact blood splatters generation experimental apparatus capable of measuring applied force and method of generating impact blood splatters using the same

An impact blood splatters generation experimental apparatus capable of measuring an applied force includes: a hammer including a rod-shaped body portion, a head portion formed at one end of the body portion, and a striking portion formed on one side of the head portion; a housing receiving a certain amount of blood thereon and including a striking surface on which the striking portion may strike; a tensile force gauge attached to an outer surface of the housing; an elastic member having one end connected to the body portion and the other end connected to the tensile force gauge; and a display unit displaying a force applied to the hammer, the force being measured by the tensile force gauge, when a user lifts the hammer to strike the striking surface.

Glazing inspection

本发明公开了一种玻璃窗的检验。公开了一种检验在依据ECE R43执行碎裂测试之后的单独一层钢化玻璃的碎裂图案的方法。该方法包括使用位于透明支撑部件第一侧上的条形光源照射传送中的该层玻璃的第一部分。使用图像捕获装置捕获该层玻璃的第一部分的图像，该图像捕获装置位于透明支撑部件第二侧上，与条形光源对准并固定在条形光源的相对位置中。玻璃的一系列图像被采集和分析以生成碎裂图案的图像。还公开了一种执行这种成像的设备。

METHOD AND APPARATUS FOR DETERMINING STATIC AND DYNAMIC MATERIAL CHARACTERISTICS OF A VISKOELASTIC MATERIAL

Gear turntable rack camera shooting circular orbit pressing plate titanium alloy glass detection system

本发明涉及一种钢化玻璃测试检验系统，齿轮转台齿条摄像圆轨压板钛合金玻璃检测系统，作为改进：一侧的台板转轴上还固定有传动齿轮，传动齿轮配合着手动齿轮，手动轮轴外端有轴用卡簧，轴用卡簧挡在手动轮轴外侧面，手动齿轮外侧面上有手轮台阶圆，手轮台阶圆上固定连接有手轮横杆，手轮横杆外端还有手轮摇手柄；一侧台板转轴外端上有转轴齿轮段和转轴螺纹，转轴齿轮段上有转轴键槽，转轴齿轮段上固定有传动齿轮，传动齿轮外侧面上有传动轮螺母与转轴螺纹相配合；摄像方杆上有移动摄像机组件，冲击横杆上可滑移固定着气缸冲击器；测试台板上平面上固定着圆形轨道压板组件，台板支座和锁销支座一起与支撑侧板上平面之间固定着碎玻璃回收容器。

Glass check frame with hydraulic turntable, rack, halo camera, zinc alloy circular rail and corner pressing plate

本发明涉及一种钢化玻璃检验架，液压转台齿条光环摄像锌合金圆轨转角压板玻璃检验架，作为改进：后板上平面上有断开缺口，断开缺口下端固定着支撑底板，测试转台后端下平面中央有T形导轨，T形导轨与支撑底板之间有液压升降机构；两根横向水平杆都滑动配合有摄像横滑块，两只摄像横滑块之间固定着摄像方杆，摄像方杆上有齿条升降摄像机组；移动光环上有一个正方形荧光管，冲击横杆上可滑移固定着气缸冲击器，测试转台上平面上固定着圆形轨道转角压板组件，本发明在整体机架上增设了移动光环组合齿条升降摄像机组，利用正方形荧光管产生环光的辅助摄像拍照，与没有正方形荧光管产生四周环光的单独摄像拍照比对，玻璃碎片的边界辨别精确度提高了30%。

Testing device with acceleration tube

Vehicle crash simulation test apparatus

본 발명의 목적은 자동차 충돌 모의 시험 장치에 있어서 재현성 향상을 가능하게 하는 것이다. 공시체(16)를 탑재 가능한 슬레드(15)를 수평한 전후 방향에 따라 이동 가능하게 지지하고, 토 보드(22)를 이 슬레드(15)의 전방부에 회동 가능하게 지지하는 동시에, 가속도 장치로서의 발사 장치(23)에 의해 토 보드(22)에 대하여 가속도를 부여 가능하게 구성하고, 슬레드(15)에 있어서 좌우 방향의 중심(中心) 위치가 중심(重心) 위치로 되도록 토 보드(22) 및 발사 장치(23)의 구성 부재를 배치한다. An object of the present invention is to enable reproducibility improvement in a vehicle crash simulation apparatus. The sled 15 on which the specimen 16 can be mounted is movably supported along the horizontal front and rear directions, and the toe board 22 is rotatably supported on the front part of the sled 15, and the acceleration device The toe board 22 is configured to be capable of imparting an acceleration to the toe board 22 by the launching device 23 as a toe, and the toe board 22 is disposed so that the center position in the left and right directions in the sled 15 is the center position. And a constituent member of the launching device 23.

Convenient speed measurement target device based on solid particles under light gas gun impact loading

本发明公开了一种基于轻气炮冲击加载下固体粒子的便捷测速靶装置，包括第一固定板和第二固定板，安装孔贯穿第一固定板的两侧，样品仓贯穿第二固定板的两侧，第一固定板和第二固定板相互连接，且第一固定板和第二固定板之间的距离能够改变；第一固定板和第二固定板之间设置有安装件和观察件，安装件的一端伸入到安装孔内，安装件的另一端与观察件的一端抵接，观察件的另一端能够与样品的一端抵接；安装件内设有限位孔，限位孔贯穿安装件的两端；在第二固定板或第一固定板的侧壁上设有固定组件。本发明可在短时间内组装靶装置，固定组件能够定位和固定不同形状的固体样品，具有良好的兼容性，保证了实验的便捷性与有效性。

Impact test apparatus

An impact test apparatus includes a barrel adapted to contain pressurized gas and having a sealed end and an opposed open end. A shuttle including a bore for carrying a test sample is positioned for translation within the barrel. A seal is provided on the shuttle for sealingly engaging the barrel. The seal divides the interior of the barrel into a portion open to the atmosphere and a sealed portion. A trigger element selectively retains the shuttle in a fixed position within the barrel and permits the shuttle to be released to accelerate toward the open of the barrel as the pressurized gas in the sealed portion of the barrel expands. Brake rings are located proximate the open end of the barrel to decelerate the shuttle and retain the shuttle substantially within the barrel while allowing the test sample to travel towards a target aligned with the open end of the barrel. The impact test apparatus permits reliable and reproducible impact testing of projectiles without the use of towers or explosive charges.

A equipment for combined material mechanical properties tests

本发明属于力学性能检测设备技术领域，尤其为一种用于复合材料力学性能测试的设备，包括底板，所述底板的下方设有夹板，所述夹板的顶部固定连接有螺纹杆，所述螺纹杆贯穿所述底板并延伸至所述底板的上方，所述螺纹杆位于所述底板上方的一端设有螺母，所述螺母螺接固定在所述螺纹杆的外壁并紧贴在所述底板的上端面；可以通过调节底板和夹板之间的距离来对不同厚度的复合材料进行固定，还能够将设备固定在复合材料上对其进行测试，避免了工作人员搬运复合材料的麻烦出现，还能够让撞击球移动的过程中始终与复合材料保持垂直状态，避免了因撞击球发生偏移而导致撞击力度减小的情况发生，提高了检测结果的精确度。

High-speed impact penetration resistance performance testing device and testing method for honeycomb structure

本发明公开了一种用于蜂窝结构的高速冲击抗侵彻性能测试装置及方法，装置包括冲击弹丸、高速摄影相机、用于冲击弹丸直线加速的加速机构、用于安装蜂窝结构且与冲击弹丸的加速轨迹相对的安装座、传感器和数据采集装置，高速摄影相机朝向冲击弹丸设置，传感器安装在安装座上，数据采集装置与传感器连接。本发明的测试方法快捷方便，性能表征全面具体，测试数据准确无误。通过在炮管末端布置高速摄影装置测量并计算可以快速地得到冲击弹丸射出炮管的速度；通过蜂窝试件侧面的高速摄影装置可以方便地记录试件的变形情况和破坏情况；通过动态力传感器可以直接得到冲击全程力的变化情况。

Mechanical property test equipment for electric power safety tool

本发明公开了一种电力安全工器具力学性能试验设备，包括实验台、一对结构相同的竖板、一对结构相同的竖直滑轨以及顶板，一对所述竖板安置于实验台上，一对所述竖直滑轨安置于一对所述竖板相对壁面上，所述实验台上，且位于一对所述竖直滑轨之间安装有力学测试机构，一对所述竖直滑轨上安装有破坏试验机构；该力学性能测试设备，结构精巧，使用方便，将多种功能集合于一体，进行不同的实验时只需要在其上更换少部分组件，因而使用起来对比完全更换仪器和设备来说非常方便，同时也减小了成本，结构大小适中，更适合中小型企业，成本可控，同时对于破坏性试验的模拟更加接近现实，能够切实观察出安全工器具的力学特性。

Apparatus for testing crash

본 발명은 충돌에 의한 시편의 정보를 얻기 위한 충돌 시험장치에 관한 것이다. 본 발명의 일 실시예에 따른 충돌 시험장치는 고압의 유체로 작동하는 실린더에 의해 충돌을 위한 작동력을 제공하는 충격력 제공부와; 상기 충격력 제공부에 의해 제공된 작동력에 의해 이동하는 충격부와; 시편이 탈부착 가능하게 구비되며, 상기 충격부가 시편과의 충돌에 의해 발생하는 하중을 측정 가능하게 구비되는 측정부;를 포함하여 구성될 수도 있다. 상기와 같은 구성에 의해 본 발명은 상대적으로 작은 규모의 시험장치로도 높은 충돌에너지의 발생을 가능하도록 하며, 안정적인 충돌시험의 재현이 가능하고, 상대적으로 짧은 거리에서도 충돌부재의 빠른 가속이 이루어질 수 있게 되어 시험장치의 설치를 위한 공간 및/또는 구성이 유리하며, 충돌시 시편에서 흡수하지 못한 에너지를 흡수 가능하도록 구성될 수 있다. 충돌, 시편, 시험장치, 유압, 압축기, 고압 The present invention relates to a collision test apparatus for obtaining information of a specimen by collision. Impact testing apparatus according to an embodiment of the present invention and the impact force providing unit for providing an operating force for the collision by the cylinder operated by a high pressure fluid; An impact portion moving by the operating force provided by the impact force providing portion; A specimen may be detachably provided, and the impact unit may measure a load generated by a collision with the specimen. By the above configuration, the present invention enables the generation of high collision energy even with a relatively small scale test apparatus, and enables the stable collision test to be reproduced, and the rapid acceleration of the collision member can be achieved even at a relatively short distance. The space and / or configuration for the installation of the test apparatus is advantageous, and can be configured to absorb the energy that the specimen did not absorb in the event of a collision. Collision, Specimen, Tester, Hydraulic, Compressor, High Pressure

Device and method for testing bulletproof plate

本发明涉及防弹装置测试技术领域，公开了一种测试防弹板的装置及方法，该方法采用的测试防弹板的装置，包括测试箱体，所述测试箱体内设置有发射管道、放置防弹板的插板腔体，发射管道另一端的撞击锥体位后端与通过发射电磁阀与高压空气仓连通，高压空气仓通过管道与空压机输出端连通；并且通过三通输出分别与升降装置连通，与左右伸缩装置连通，与压紧装置连通，压紧装置上设置有压力测试装置和防护板。本发明能够对靶位方向的防弹板任意部位进行撞击，及对防弹板的某个部位进行连续的撞击，还能够模拟多种枪支的初速对防弹板进行撞击测试。其结构设计合理，制作容易，操作方便，并且避免了传统测试的工序繁琐，操作极为不便的问题。

Device for measuring the dynamic stress/strain response of ductile materials

A method and apparatus for measuring a dynamic tensile stress and/or tensile strain response of a material such as an elastic material and/or a ductile material. The apparatus may include a striker bar, a stretcher bar, and a drive assembly configured to propel the striker bar toward the stretcher bar. The apparatus may further include a stationary specimen mount and a movable specimen mount that receive a test sample. The striker bar and the stretcher bar of the apparatus may provide a continuous stress on the test sample and an accurate tensile stress/strain measurement.

High-temperature pulse dynamic strain calibration device

本发明公开的一种高温脉冲动态应变校准装置，属于应变计量测试技术领域。本发明主要由动态应变激励系统、高温环境试验系统、被校应变测量系统、激光测量系统和底座支架组成。本发明通过将受压缩气体推动加速的弹体高速撞击入射杆产生脉冲应变作为动态应变激励源，即使用一种基于双Hopkinson分离杆冲击模式产生脉冲应变，能够实现较大量程范围和持续时间的脉冲应变。本发明通过采用激光多普勒测量系统测得的应变值作为标准值，同时结合高温环境试验系统，采取局部半封闭加热方案，实现在高温下的应变动态校准。本发明将应变计量校准由静态特性拓展到动态特性，且能够同时实现常温和高温环境下的应变动态校准。

System and method for measuring wave velocity of solid medium in confining pressure state

本发明公开了一种围压状态下固体介质波速测量系统及方法，包括密闭舱体，所述密闭舱体内部装满液体，放置待测固体试件，外接加压装置；所述固体试件为分层结构，层间放置传感器，传感器通过引线引出密封舱体并接线到量测装置上；密闭舱体前端为发射管，管内设置具有冲击速度的钢块，发射管末端设置有开口槽，开口槽外侧设置激光测速仪。本发明能够实现围压状态下固体试件波速的精准测量，节省了时间和人力，大幅度的提高了试验精度与试验效率。

Shock gauge

Using method of metal welding part reliability detection device capable of collecting blanking

本发明涉及可收集落料的金属焊接部位可靠性检测装置，包括平行设置的上、下底板、支柱、工作台、横杆；所述下底板上与工作台对应处设有升降气缸、升降平台、同步带输送装置、滚球支架；所述移动通孔后端设有第一驱动电机、第一丝杆、第一螺接件、第一滑块、预压气缸、压紧气缸、第二滚球；所述工作台上还设有侧方气缸、限位板；所述移动通孔前端设有第二驱动电机、第二丝杆、第二螺接件、第二滑块、冲击气缸；所述横杆中部后方设有激光测距仪，所述冲击气缸下端设有压力感应器；所述工作台前端铰接有一卸料板、电磁铁、减震装置；可收集落料的金属焊接部位可靠性检测装置的使用方法，包括入料、位置调整、送料、压紧、冲击、退料等步骤。

Detection device for building engineering supervision

本发明公开一种建筑工程监理用检测装置，检测装置包括移动装置，移动装置上紧固设有用于安装检测件的安装件，移动装置与安装件通过固定件紧固连接，安装件上紧固连接有用于检测建筑强度的检测件，移动装置上滑动设有用于检测建筑地面水平度的检测器，移动装置包括工作架，工作架上设有对称分布的第一贯穿槽，工作架上设有对称分布的开口槽，工作架的一侧紧固设有第一固定板，第一固定板一侧紧固设有第一电机，另一侧转动设有第一丝杠，第一电机的输出端贯穿第一固定板与第一丝杠紧固连接，第一丝杠上滑动设有第一轴套，工作架一侧紧固设有第二固定板。本发明检测装置，检测角度高度可调，结构简单，操作方便，适合实际使用。