Three-way impact acceleration sensor installation method validity inspection system and method

A technology of acceleration sensor and installation method, which is applied in the directions of 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 achieve small space occupation , Portable and simple, the effect of improving reliability

Active Publication Date: 2022-06-07
BEIJING INST OF SPACECRAFT ENVIRONMENT ENG
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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

Method used

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

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Effect test

Embodiment 1

[0033] like figure 1 As shown, this embodiment relates to a three-way impact acceleration sensor 5 installation method validity test system, 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 hit the inspection ball 1; the launching device 4 is used to launch the excitation ball 2 in a specified direction and speed; The three-way impact acceleration sensor 5 is connected to a signal for collecting data measured by each three-way impact acceleration sensor 5; the sensor installation effectiveness analysis unit 6 adopts a data analysis method to perform data processing on the measured impact data, This evaluates the effectiveness of the sensor installation method.

[0034] In this embodiment, the three-way impact acceleration sensor 5 is installed on the test ball 1, and t...

Embodiment 2

[0044] like image 3 As shown, this embodiment relates to a method for verifying the validity of the installation mode 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 inspection 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 it on the installation plane, or install different models of three-way shock acceleration sensors on the installation plane in different installation ways.

[0047] S2. Suspend the inspection ball.

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

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Abstract

This application provides a system and method for checking the validity of the installation method of a three-way impact acceleration sensor, including a test ball, an excitation ball, a launcher, a data acquisition system, and a sensor installation effectiveness analysis unit; a three-way impact acceleration sensor is installed on the test ball; The excitation ball is used to impact the excitation test ball; the launch device provides the initial momentum for the excitation ball, so that the excitation ball shoots obliquely to the inspection ball, so as to ensure the three-way and repeatability of the excitation; the data acquisition system is used to receive and store the impact time domain data; the sensor installation effectiveness analysis unit is used to analyze and process the impact data. The beneficial effects of the application are: the launching device obliquely shoots the excitation ball at a controllable speed and collides with the inspection ball, and uses the sensor installation effectiveness analysis unit to process the impact time domain data collected by the sensor to judge the three-way impact acceleration Whether the sensor is effective for spacecraft shock response test in this installation mode.

Description

technical field [0001] The present disclosure relates to the field of aerospace dynamics environmental testing, in particular to a system and method for validating the installation mode of a three-way impact acceleration sensor. Background technique [0002] A large number of pyrotechnic devices are used on spacecraft to complete some specific functions, such as segment separation, device driving, etc. When these pyrotechnic devices work, the strong high-frequency mechanical shock environment caused on the spacecraft structure is called the explosion separation shock environment. The explosion separation shock is mainly caused by the explosion pressure of pyrotechnics, the release of strain energy when the separation structure breaks, or the shock wave generated by the collision of the separation device structure, which stimulates the shock response of the structure during the continuous propagation and reflection process in the structure. The working principle and distribu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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