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Digital quartz flexible accelerometer

An accelerometer, digital technology, applied in the field of digital quartz flexible accelerometer, can solve the problems of high power, slow start, occupying space, etc., to achieve the effect of optimizing circuit topology, simple circuit, and optimized wiring structure

Pending Publication Date: 2020-06-30
AVIC SHAANXI HUAYAN AERO INSTR
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most of the quartz flexible accelerometers convert the sensed external acceleration signal into an analog signal for external output, while the external system needs to collect digital signals, and in the prior art, the quartz flexible accelerometer and digital conversion The circuits are installed separately, occupying too much space, high power, slow startup, and not conducive to system miniaturization; moreover, the overall circuit connection is not simple enough, which may affect the reliability of signal transmission and conversion of each functional component

Method used

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Embodiment Construction

[0023] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0024] The digital quartz flexible accelerometer of the embodiment of the present application is as follows figure 1 As shown, it includes a servo circuit board 1 , a first torquer stator 2 , a magnetic steel assembly 3 , a skeleton assembly 4 , a swing frame 5 , a locking ring 6 , a second torquer stator 7 and a housing 8 . The ...

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Abstract

The digital quartz flexible accelerometer provided by the invention can realize digital signal output, meets the use requirements of a guidance system and a flight control system, and has the characteristics of simple circuit, high reliability and the like. The servo circuit board of the digital quartz flexible accelerometer comprises a differential capacitance detection unit, a current integrator, a transconductance / compensation amplifier and an analog-to-digital conversion module; an acceleration signal generated by the torquer stator assembly is converted into a capacitance signal to be input into the differential capacitance detection unit. The capacitance signal is converted into a current signal through the differential capacitance detection unit, the current signal is integrated bythe current integrator and then a voltage is output, the voltage is amplified and converted into an output current through the transconductance / compensation amplifier, one path of the output current is fed back to the torquer stator assembly, and the other path of the output current outputs a digital signal through the analog-to-digital conversion module; and the torquer stator assembly is provided with two groups of wiring terminals which are connected with corresponding components on the servo circuit board.

Description

technical field [0001] The present application relates to an accelerometer element, in particular to a digital quartz flexible accelerometer. Background technique [0002] Quartz flexible accelerometer is one of the main components of inertial navigation system, which is widely used in the fields of navigation, guidance and control of aerospace, aviation, navigation and weapon systems. [0003] At present, most quartz flexible accelerometers convert the sensed external acceleration signals into analog signals for external output, while the external system needs to collect digital signals, and in the prior art, quartz flexible accelerometers and digital conversion The circuits are installed separately, occupying too much space, high power, slow start-up, which is not conducive to the miniaturization of the system; moreover, the overall circuit connection is not simple enough, which may affect the reliability of signal transmission and conversion of each functional component. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01P15/125
CPCG01P15/0802G01P15/125
Inventor 戴成军李雷马孝育王海明陶志远刘志伟高宇郑永亮
Owner AVIC SHAANXI HUAYAN AERO INSTR
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