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Multidimensional acceleration transducer

An acceleration sensor, multi-dimensional technology, applied in the field of sensors, can solve the problems of unstable output signal, low detection sensitivity, complex structure, etc., to achieve the effects of reliable performance, high sensitivity and simple preparation process

Inactive Publication Date: 2004-11-10
SHENYANG SENSOR TECH INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a multi-dimensional acceleration sensor, which fundamentally overcomes the defects of unstable output signal, complex structure, high cost, and low detection sensitivity in the prior art, and has compact structure, simple preparation process, and reduced cost. Strong overload capacity, easy calibration, multi-dimensional and all-round detection, high sensitivity and reliable performance

Method used

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  • Multidimensional acceleration transducer

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Embodiment Construction

[0017] according to figure 1 The specific structure and working process of the present invention are described in detail. The device includes an insulator shield 10 with a quick connector seat 2, an inner insulator 11, an outer lead insulator 12, an outer lead 1, a housing 8 with a connecting threaded head 9, a silicon strain gauge 4, a titanium alloy stress cup 5, Stress rod 6, metal counterweight 7, and other pieces. The specification and model of the housing 8 should be determined according to actual use requirements, and can be made of metal materials or other hard materials. The upper end of the casing 8 is sealed with a titanium alloy stress cup 5, and a metal counterweight 7 is installed in the cavity of the casing 8, and the metal counterweight 7 is fixed to the lower end of the stress rod 6 integrated with the bottom of the stress cup 5. The metal weight 7 can be screwed to the lower end of the stress rod 6 or welded to the lower end of the stress rod 6. The size and shap...

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Abstract

The invention is a multidimensional acceleration transducer, including insulator shield with fast joint seat, external lead wire, and a case with connecting thread head, and its technical key points: there is a Ti alloy stress cup sealed on the top of the case, there is a metal balance weight block held in the cavity of the case, the balance weight block is fixed at the bottom end of the stress rod forming a whole with the bottom of the stress cup, the top of the stress rod is set with a silicon strain slice with Wheatstone bridge and welded with its static seal or molecular bonding weld into a whole, the pad on the strain slice uses a connected with the external lead wire fixed on the insulator, through internal lead wire. It has the advantages of compact structure, simple preparing technique, low cost, strong overloading ability, easily calibrating, high sensitivity, etc.

Description

Technical field [0001] The invention relates to a sensor for measuring the motion parameters and vibration data of various objects, in particular to a multi-dimensional acceleration sensor suitable for controlling the safety air bag of a vehicle when the speed of the vehicle changes. It is also suitable for the detection and control of various mechanical vibrations; anti-rotation and sway control of aviation and spacecraft and ships. Background technique [0002] At present, to measure the state of various objects, such as the detection and control of mechanical vibration; the detection and control of vehicle motion speed; the motion parameters and vibration data of anti-rotation and sway control of aviation and spacecraft, ships, etc. Generally, acceleration sensors are commonly used. Existing acceleration sensors mainly include piezoresistive type and capacitive type, but most of them are linear sensors. The piezoresistive structure is difficult to process, difficult to calibra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01P15/00G01P15/12
Inventor 段祥照
Owner SHENYANG SENSOR TECH INST