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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 5. Отображено 5.
03-12-2014 дата публикации

Destructive near-earthquake early warning system and method

Номер: CN104183092A
Автор: CHAI JIANYONG, WANG XIONGJIAN
Принадлежит:

The invention relates to an earthquake monitoring and feedback system and a method, and particularly relates to a destructive near-earthquake early warning system and a method. The destructive near-earthquake early warning system comprises a sensing module, an earthquake waveform acquisition and early warning module, and an early warning information terminal, wherein the sensing module comprises multiple sensor groups arranged around a protected area; each sensor group comprises multiple single-point sensors; the earthquake waveform acquisition and early warning module comprises a signal amplification unit connected with the sensor group; the signal amplification unit is connected with an intensity and phase identification unit; the intensity and phase identification unit is connected with a voltage comparison unit and a central processing unit; and the central processing unit is connected with an intensity grade estimation unit and an early warning signal sending unit. The method comprises ...

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Номер записи: 1
11-05-2011 дата публикации

Method and system for measuring shear wave velocity of rock soil

Номер: CN0101718579B
Автор: CHAI JIANYONG, CHEN LIJUN, LIU CHANGMOU, XU ZHAOYONG, YAN XING, JIANYONG CHAI, LIJUN CHEN, CHANGMOU LIU, ZHAOYONG XU, XING YAN
Принадлежит:

The invention discloses a method and a system for measuring the shear wave velocity of rock soil. The method comprises that: firstly, a vibration source generates shear waves with the frequency of f1 at a time t0; a counter is triggered to begin counting at the time t0+tc, wherein the frequency of the trigger pulse of the counter is f2 and tc is a preset triggered counting delay; a detection signal which is output by a detection probe at a position n in a well hole is subjected to anti-interference processing to obtain square waves which are input to a shear wave receiving and processing circuit and have the output frequency of f1, wherein n is not less than 0; the counter stops counting at the time t1(n) when the shear wave receiving and processing circuit receives the square waves; and the comprehensive shear wave velocity of a travel route between the position n and the vibration source is calculated through the following formula. The method and the system of the invention can effectively ...

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Номер записи: 2
04-05-2011 дата публикации

Method for enhancing measurement precision of proton magnetometer

Номер: CN0101493529B
Автор: YAN XING, XU HANG, CHAI JIANYONG, LU JINGAN, CHEN QI, YU YANJIANG, HUANG HUI, LI ZHUBO, XING YAN, HANG XU, JIANYONG CHAI, JINGAN LU, QI CHEN, YANJIANG YU, HUI HUANG, ZHUBO LI
Принадлежит:

The invention provides a method and a circuit for improving the measurement precision of a proton magnetometer; the method adopts 1) a high-speed device cycle-measuring method which uses the period of the signal to be measured as the counting gate time of the standard pulse so as to calculate the period of the signal to be measured; 2) an evaluation and processing method for grade of real-time signal data, which automatically calculates the discreteness according to the difference of the magnetic field to be measured and the interference on the time domain characteristic and the attenuation characteristic of the spinning signal; and 3) a correction method for the temperature coefficient of devices, which adopts high-sensitiveness temperature integration sensor and an A/D (analog to digital) converter to directly carry out the correction in the measurement program. The circuit comprises an omni-directivity deep-sea proton magnetic probe, a probe polarization converter, a polarization controller ...

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Номер записи: 3
02-06-2010 дата публикации

Method and system for measuring shear wave velocity of rock soil

Номер: CN0101718579A
Автор: CHAI JIANYONG, CHEN LIJUN, LIU CHANGMOU, XU ZHAOYONG, YAN XING, JIANYONG CHAI, LIJUN CHEN, CHANGMOU LIU, ZHAOYONG XU, XING YAN
Принадлежит:

The invention discloses a method and a system for measuring the shear wave velocity of rock soil. The method comprises that: firstly, a vibration source generates shear waves of which frequency is f1 at a time t0; a counter is triggered to begin counting at the time t0+tc, wherein the frequency of the trigger pulse of the counter is f2 and tc is a preset triggered counting delay; a detection signal which is output by a detection probe at a position n in a well hole is subjected to anti-interference processing to obtain square waves which are input to a shear wave receiving and processing circuit and have the frequency f1, wherein n is not less than 0; the counter stops counting at the time t1(n) when the shear wave receiving and processing circuit receives the square waves; and the comprehensive shear wave velocity of a travel route between the position n and the vibration source is calculated through the following formula. The method and the system of the invention can effectively improve ...

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Номер записи: 4
29-07-2009 дата публикации

Method for enhancing measurement precision of proton magnetometer and circuit thereof

Номер: CN0101493529A
Автор: CHAI JIANYONG, LU JINGAN, YAN XING, XU HANG, HUANG HUI, LI ZHUBO, CHEN QI, YU YANJIANG, JIANYONG CHAI, JINGAN LU, XING YAN, HANG XU, HUI HUANG, ZHUBO LI, QI CHEN, YANJIANG YU
Принадлежит:

The invention provides a method and a circuit for improving the measurement precision of a proton magnetometer; the method adopts 1) a high-speed device cycle-measuring method which uses the period of the signal to be measured as the counting gate time of the standard pulse so as to calculate the period of the signal to be measured; 2) an evaluation and processing method for grade of real-time signal data, which automatically calculates the discreteness according to the difference of the magnetic field to be measured and the interference on the time domain characteristic and the attenuation characteristic of the spinning signal; and 3) a correction method for the temperature coefficient of devices, which adopts high-sensitiveness temperature integration sensor and an A/D (analog to digital) converter to directly carry out the correction in the measurement program. The circuit comprises an omni-directivity deep-sea proton magnetic probe, a probe polarization converter, a polarization controller ...

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Номер записи: 5