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Three-way impact acceleration sensor installation mode validity test system and method

A technology of acceleration sensor and installation method, which is applied in multi-dimensional acceleration measurement, velocity/acceleration/shock measurement, acceleration measurement using inertial force, etc. It can solve the problems affecting the normal evaluation of the impact resistance performance of spacecraft, and achieves a small footprint , Portable and simple, the effect of improving reliability

Active Publication Date: 2021-06-01
BEIJING INST OF SPACECRAFT ENVIRONMENT ENG
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  • Application Information

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Problems solved by technology

Therefore, the installation frequency of the three-way shock acceleration sensor is very important, especially for the high-frequency response. If the installation method is improper, it will have a certain amplification effect on the shock response, which will seriously affect the normal evaluation of the spacecraft’s shock resistance performance. The inspection method of the installation method of the three-way impact acceleration sensor

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  • Three-way impact acceleration sensor installation mode validity test system and method
  • Three-way impact acceleration sensor installation mode validity test system and method
  • Three-way impact acceleration sensor installation mode validity test system and method

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Embodiment 1

[0033] Such as figure 1 As shown, the present embodiment relates to a system for checking the validity of the three-way shock acceleration sensor 5 installation method, including a test ball 1, an excitation ball 2, a data acquisition system 3, a launch device 4, and a sensor installation validity analysis unit 6; A three-way impact acceleration sensor 5 is installed on the inspection ball 1; the excitation ball 2 is used to impact the inspection ball 1; the launching device 4 is used to launch the excitation ball 2 in a specified direction and speed; the data acquisition system 3 and The three-way impact acceleration sensors 5 are signal-connected for collecting the data measured by each three-way impact acceleration sensors 5; the sensor installation effectiveness analysis unit 6 adopts a data analysis method to perform data processing on the measured impact data, In this way, the effectiveness of the sensor installation method is evaluated.

[0034] In this embodiment, the...

Embodiment 2

[0044] Such as image 3 As shown, this embodiment relates to a method for checking the validity of the installation method of a three-way impact acceleration sensor. This embodiment uses the inspection system of Embodiment 1 for inspection, including the following steps:

[0045] S1. Install the three-way impact acceleration sensor on the test ball.

[0046] In this step, two three-way impact acceleration sensors of the same type can be installed on the installation plane of the test ball in two ways: direct installation and installation through the mounting seat, or different types of three-way impact acceleration sensors can be installed in the same way. Install on the installation plane, or install different types of three-way impact acceleration sensors on the installation plane in different installation methods.

[0047] S2, suspending the inspection ball.

[0048] The test ball is hoisted and suspended together with the three-way impact acceleration sensor installed on...

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Abstract

The invention provides a three-way impact acceleration sensor installation mode validity test system and method. The system comprises a test ball, an excitation ball, a transmitting device, a data acquisition system and a sensor installation validity analysis unit. The three-way impact acceleration sensor is mounted on the inspection ball; the excitation ball is used for impacting and exciting the inspection ball; the launching device provides initial momentum for the excitation ball, so that the excitation ball is obliquely shot to the inspection ball, and the three-direction property and repeatability of excitation are ensured; the data acquisition system is used for receiving and storing impact time domain data; and the sensor installation validity analysis unit is used for analyzing and processing the impact data. The system and method have the beneficial that the emission device obliquely emits the excitation ball at a controllable speed and collides with the inspection ball, and after the sensor installation validity analysis unit processes impact time domain data collected by the sensor, whether the three-way impact acceleration sensor is effective in a spacecraft impact response test in the installation mode is judged.

Description

technical field [0001] The present disclosure relates to the field of aerospace dynamics environmental tests, in particular to a system and method for checking the validity of the installation mode of a three-way impact acceleration sensor. Background technique [0002] A large number of pyrotechnic devices are used on the spacecraft to complete some specific functions, such as segment separation and equipment drive. When these pyrotechnic devices work, they will cause a strong high-frequency mechanical shock environment on the spacecraft structure, which is called an explosive separation shock environment. The impact of explosive separation is mainly due to the explosion pressure of pyrotechnics, the release of strain energy when the separation structure is broken, or the shock wave generated by the collision of the separation device structure, which arouses the shock response of the structure during the continuous propagation and reflection process in the structure. The w...

Claims

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Application Information

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IPC IPC(8): G01P21/00G01P15/18G01M7/08
CPCG01P21/00G01P15/18G01M7/08Y02E30/30
Inventor 冯国松马功泊杨江王栋王潇锋王睿杨光杨艳静晏廷飞张俊刚刘闯赵晓旭武耀耿丽艳魏博
Owner BEIJING INST OF SPACECRAFT ENVIRONMENT ENG
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