Equipment and method for evaluating accelerometer reliability based on performance index
An accelerometer and reliability technology, used in the testing/calibration of speed/acceleration/shock measurement equipment, speed/acceleration/shock measurement, measurement devices, etc. Simple and convenient effects
Active Publication Date: 2020-10-30
CHINA ELECTRONICS PROD RELIABILITY & ENVIRONMENTAL TESTING RES INST
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Problems solved by technology
[0005] Based on the problem that the reliability of the accelerometer cannot be accurately evaluated, the present invention provides a device and method for evaluating the reliability of the accelerometer based on performance indicators
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Embodiment Construction
[0046] In order to make the purpose, technical solution and advantages of the present invention clearer, the following examples will be used in conjunction with the accompanying drawings to further describe the device and method for evaluating the reliability of an accelerometer based on performance indicators of the present invention.
[0047] It should be understood that, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are for describing specific embodiments only, and are not intended to limit the present invention.
[0048] The various embodiments of the present invention based on the performance index evaluation equipment and method of the reliability of the accelerometer can complete the test of the zero position and the scale factor of the MEMS accelerometer based on the do...
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The invention relates to a piece of equipment and a method for measuring the reliability of an accelerometer based on performance indicators, which relate to the technical field of accelerometers. Theequipment includes a test tooling used for installing an accelerometer, and a positioning device used for determining the position of the test tooling. The test tooling includes a first installationbody and a second installation body perpendicular to the first installation body. The first installation body is provided with an installation hole, and is detachably connected with a centrifuge through the installation hole. The first installation body and the second installation body are provided with first fixing holes, and are detachably connected with the accelerometer through the corresponding first fixing holes. The positioning device is provided with a positioning hole, and is detachably connected with the centrifuge through the positioning hole. The accelerometer is installed on the test tooling and is not disassembled in the whole reliability evaluation process, which ensures that the change of performance indicators comes from a reliability test environment. Then, the reliability of the accelerometer is evaluated. The operation is simple and convenient.
Description
technical field [0001] The invention relates to the technical field of accelerometers, in particular to a device and method for evaluating the reliability of accelerometers based on performance indicators. Background technique [0002] Micro-mechanical accelerometers are made based on MEMS (Micro-Electro-Mechanical System, micro-mechanical systems) processing technology, also known as MEMS accelerometers, which can be used to measure the acceleration information of moving carriers, and have been used in military, industrial, inertial navigation , Instrument testing, medicine and consumer electronics and other fields have been widely used. [0003] As an important assessment index, the reliability of MEMS accelerometer has become a key factor for its wide application; evaluating the reliability of accelerometer needs to obtain performance indicators such as zero position and scale factor before and after the reliability test, and pass the performance indicators before and aft...
Claims
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IPC IPC(8): G01P21/00
CPCG01P21/00
Inventor 董显山黄钦文杨少华恩云飞
Owner CHINA ELECTRONICS PROD RELIABILITY & ENVIRONMENTAL TESTING RES INST