Triaxial accelerometer

Abstract

The invention belongs to a quartz accelerometer, and aims to solve technical problems that in the prior art, a quartz flexible accelerometer can only carry out unidirectional measurement and is difficult to disassemble and maintain; if three-way measurement needs to be realized, three accelerometers need to be installed together through a transition table body, which causes the poor precision, large weight, large size and tedious measurement and calibration process in the prior art. The invention provides a triaxial accelerometer, and a shell comprises a transverse part and a longitudinal part, wherein one end of the longitudinal part is located at one side of the transverse part, and a T-shaped structure is formed between the transverse part and the longitudinal part; two watch movementsare installed in the transverse part, wherein the output end of one watch movement faces the upper side of the transverse part, and the output end of the other watch movement faces the side face of the end of the transverse part. A watch movement of which the output end faces the front side is arranged in the longitudinal part of the shell; the three watch movements are arranged independently; a servo circuit is inserted into the output end of each watch movement and is electrically connected with the watch movement; and a binding post for external connection is arranged on the outer side of each servo circuit.

Description

technical field [0001] The invention belongs to quartz accelerometers, in particular to a triaxial accelerometer. Background technique [0002] Acceleration measurement has always been a key technology in aviation systems. At present, quartz accelerometers are inertial devices widely used in measuring acceleration. However, quartz accelerometers are single-axis sensitive devices. When using them, three quartz accelerometers need to be arranged along the Cartesian coordinate system to measure the flight system. Acceleration variation, first install three quartz accelerometers on the platform tooling, and then install the platform in the inertial navigation system. [0003] Such as figure 1 It is a common quartz flexible accelerometer at present. It is mainly composed of watch core 03, watch case 04 and servo circuit 02. The watch core 03 and watch case 04 are glued and fixed, and the servo circuit 02 and watch case 04 are electrically connected by welding. , the table core...

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to solve the problem that the quartz flexible accelerometer in the prior art can only measure in one direction and is difficult to disassemble and maintain. To realize three-way measurement, three accelerometers need to be installed together through a transition platform, resulting in poor accuracy. , heavy weight, large volume, and cumbersome technical problems in the measurement and calibration process, by providing a three-axis accelerometer

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