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A batch performance test system of ultra-high precision accelerometer

An accelerometer and test system technology, applied in the testing/calibration of speed/acceleration/shock measurement equipment, speed/acceleration/shock measurement, measurement devices, etc. large, low test accuracy, etc., to achieve the effect of improving anti-interference ability, high degree of automation, and improving test accuracy

Active Publication Date: 2018-11-16
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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  • A batch performance test system of ultra-high precision accelerometer
  • A batch performance test system of ultra-high precision accelerometer

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Embodiment Construction

[0010] The present invention will be described in further detail below. See attached figure 2 , An ultra-high-precision accelerometer batch performance testing system and method, including isolation foundation 1, automatic turntable 2, signal collector 3, temperature control box and fixed fixture 4, multi-channel I / U converter 5, constant temperature oil tank 6, Single I / U converter 7, filter 8, high-precision digital voltmeter 9, sequence controller 10, precision constant current source 11, AV purification regulated power supply 12, multiple AC / DC DC power supply 13, computer 14, The accelerometer product 15, the power filter 16, the isolation 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, which is proportional to the earth's gravitational acceleration. The output terminal of the accelerometer 15 is connected to the input terminal of the multi-channel I / U conver...

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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 an ultra-high-precision accelerometer batch performance testing system and method. Background technique [0002] The accelerometer is one of the most critical inertial components of the inertial system. The accuracy of the inertial system depends to a large extent on the accuracy of the accelerometer. With the development of inertial navigation and guidance systems, the overall performance is 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 that performs batch 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 current output mode, which makes the output signal have the advantages of ...

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Application Information

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