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Quartz flexible acceleration detection mass pendulum for isolating disturbance torque and processing method

A technology for interfering torque and detecting mass. It is applied in the directions of acceleration measurement, velocity/acceleration/impact measurement, and acceleration measurement using inertial force. The effect of reducing bias error, reducing influence and improving accuracy

Active Publication Date: 2021-03-23
CHINA ELECTRONICS TECH GRP NO 26 RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the large difference in the thermal expansion coefficients of the torque coil, the adhesive and the quartz glass material, thermal deformation stress will be generated during the temperature change process, thereby generating an interference torque to the flexible beam and causing a bias error

Method used

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  • Quartz flexible acceleration detection mass pendulum for isolating disturbance torque and processing method

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Embodiment Construction

[0027] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0028] The quartz flexible acceleration detection mass pendulum for isolating the interference torque of the present invention comprises a pendulum ring 1, and the two sides of the pendulum ring 1 are respectively provided with mounting bosses 2, and the number of the mounting bosses 2 on both sides is the same and corresponds one by one; at the center of the pendulum ring 1 A swing tongue 3 is provided in the cavity, and the swing tongue 3 is connected with the swing ring 1 through a flexible beam 4; a helix 5 penetrating on both sides is provided on the swing tongue 3, and the helix 5 extends outward around the center of the swing tongue ( Here it just means that the center of the helix is ​​the center of the swinging tongue, and it does not mean that the starting point of the helix starts from the center of the swinging tongue. Sinc...

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Abstract

The invention discloses a quartz flexible acceleration detection mass pendulum for isolating disturbance torque and a processing method; the quartz flexible acceleration detection mass pendulum comprises a pendulum ring, two sides of the pendulum ring are respectively provided with installation bosses, and the installation bosses on the two sides have the same number and are in one-to-one correspondence; a swing tongue is arranged in a center cavity of the pendulum ring and connected with the pendulum ring through a flexible beam. The swing tongue is provided with a spiral line with two through faces, the spiral line extends outwards with the circle center of the swing tongue as the center, and the spiral line has a certain width so that the hollowed-out portion where the spiral line is located can form an isolation ring. The influence of disturbance torque on the performance of the accelerometer can be reduced or eliminated.

Description

technical field [0001] The invention relates to a quartz flexible acceleration detection mass pendulum, in particular to a quartz flexible acceleration detection mass pendulum for isolating disturbance moments and a processing method thereof, belonging to the field of accelerometers. Background technique [0002] Quartz flexible accelerometer is a force balance pendulum accelerometer with good stability, high precision, simple structure and easy miniaturization. It is currently used in aviation, aerospace, navigation and various strategic / tactical weapons. The most widely used type of accelerometer in guidance and control systems. [0003] When the quartz flexible accelerometer is subjected to disturbance torque, bias error will occur. There are two main sources of interference torque: one is the bonding stress of the torque coil, and the other is the thermal stress of the laser sealing welding of the meter head. Due to the large difference in the thermal expansion coeffic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01P15/08
CPCG01P15/0802G01P2015/0854
Inventor 王勇杨勇黄勇彭志高
Owner CHINA ELECTRONICS TECH GRP NO 26 RES INST
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