Ultrahigh-precision acceleration meter batch performance test system

A technology of accelerometer and testing system, which is applied in the testing/calibration of speed/acceleration/shock measurement equipment, speed/acceleration/shock measurement, and measuring devices, etc., which can solve the problem of susceptibility to interference and long-term repetitive performance test errors of accelerometers Large, low test accuracy and other problems, to achieve the effect of improving anti-interference ability, high degree of automation, and improving test accuracy

Active Publication Date: 2016-06-08
FLIGHT AUTOMATIC CONTROL RES INST
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Problems solved by technology

[0004] The purpose of the present invention is: to propose a kind of ultra-high-precision accelerometer batch performance test system and method, it can overcome the same accelerometer in the existing test technology when its performance index exists difference in different test channel test, accelerometer repeats for a long time It can also eliminate the inherent errors of the test system in stages, and can further improve the calibration accuracy of the accelerometer through the software compensation method, so as to meet the comprehensive performance better than 10 -5 Test requirements for batch performance of ultra-high precision accelerometers for g

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[0010] The present invention will be described in further detail below. See attached figure 2 , a batch performance testing system and method for an ultra-high-precision accelerometer, comprising an isolation foundation 1, an automatic turntable 2, a signal collector 3, a temperature control box and a fixing fixture 4, a multi-channel I / U converter 5, a constant temperature oil tank 6, Single-channel I / U converter 7, filter 8, high-precision digital voltmeter 9, sequence controller 10, precision constant current source 11, AV purification and regulated power supply 12, multi-channel AC / DC DC power supply 13, computer 14, The accelerometer product 15, the power supply filter 16, the isolated foundation 1 and the automatic turntable 2 provide a stable angle signal for the accelerometer 15, so that the accelerometer 15 generates a current signal I1∽In, and the value of the current signal is proportional to the acceleration of gravity of the earth. The output end of the accelero...

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Abstract

The invention belongs to the test technology field and relates to an ultrahigh-precision acceleration meter batch performance test system. The system comprises an isolation foundation 1, an automatic rotary table 2, a signal acquisition device 3, a temperature control box and a fixing clamp 4, a multi-path I/U converter 5, a constant temperature oil groove 6, a single-patch I/U converter 7, a filter 8, a high-precision digital voltage meter 9, a sequence controller 10, a precise constant current source 11, an AV purifying stabilized power source 12, a multi-path AC/DC DC power source 13, a computer 14 and an acceleration meter product 15.

Description

technical field [0001] The invention belongs to the technical field of testing, and relates to a batch performance testing system and method of an ultra-high-precision accelerometer. Background technique [0002] The accelerometer is one of the most critical inertial components of the inertial system. The accuracy of the inertial system depends largely on the accuracy of the accelerometer. With the development of inertial navigation and guidance systems, a comprehensive performance better than 10 -5 g's ultra-high-precision accelerometer products are becoming more and more urgent, and it is more and more important to build an accelerometer multi-channel performance test system for batch and accurate testing and calibration of ultra-high-precision accelerometer product performance. [0003] Ultra-high-precision accelerometers are generally closed-loop pendulum accelerometers. The accelerometer adopts the current output mode, which makes the output signal have the advantages o...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01P21/00
Inventor 肖卫民王淞立
Owner FLIGHT AUTOMATIC CONTROL RES INST
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