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Small two-way signal output pressure sensor structure

A dual-channel signal and output pressure technology, applied in the direction of measuring fluid pressure, instruments, measuring devices, etc., can solve problems such as hysteresis and creep, and achieve the effects of easy operation, inorganic materialization, and simple structure

Pending Publication Date: 2017-12-15
航天南洋(浙江)科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although there are various structures of existing pressure sensors, most of them need to be bonded by glue between the strain gauge and the elastic body, and the aging of the glue is likely to cause adverse effects such as creep and hysteresis.

Method used

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  • Small two-way signal output pressure sensor structure

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] Combine below figure 1 Specific description embodiment:

[0015] A small double-channel signal output pressure sensor structure, which is composed of a base 1, a casing 2, a sensitive diaphragm 3, a board seat 4, a compensation circuit board 5, and a signal lead-out cable 6, and the base 1 is provided with a sensitive diaphragm 3 and a casing 2. Board seat 1 is provided on the 3 pieces of sensitive film, and two Wheatstone bridges are provided on the sensitive film. Each Wheatstone bridge is connected with the compensation circuit board. Deformation occurs after pressure sensing, and the signal is led out to the compensation circuit board through the gold wire. After the signal is compensated on the compensation circuit board, the signal is led out by the signal lead-out cable.

[0016] Preferably, the two Wheatstone bridges include 8 independent strain resistors, and the inner and outer rings are combined in pairs.

[0017] The preferred mode is that the shell has it...

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Abstract

The invention belongs to the technical field of small two-way signal output pressure sensors, and particularly relates to a two-way signal output pressure sensor. The two-way signal output pressure sensor is composed of a base, a shell, a sensitive membrane, a plate base, a compensating circuit board and signal output cables, and signals are output by the signal output cables. The two-way signal output pressure sensor has the advantages that the reliability of output signals is ensured, two-way signals are compared with each other, and the reliability and the stability are high; moreover, the structure is simple, operation is easy, and no additional stress is placed on the mechanical structure load of the whole system, so that the objective of miniaturization is achieved, inorganic qualitative is completely achieved, and the problems of aging of organic adhesive and the like are radically solved.

Description

technical field [0001] The invention belongs to the technical field of small dual-channel signal output pressure sensor appliances, and in particular relates to a structure of a small dual-channel signal output pressure sensor. Background technique [0002] As the most basic measurement unit, pressure sensors are widely used in various fields such as industrial production, military equipment, aerospace and navigation. Although there are various structures of existing pressure sensors, most of them need to be glued between the strain gauge and the elastic body, and the aging of the glue is likely to bring adverse effects such as creep and hysteresis. Contents of the invention [0003] The purpose of the present invention is to solve the technical problems described above, to provide a method that ensures the reliability of the output signal, the two signals are compared with each other, the reliability and stability are high, and the structure is simple, easy to operate, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L19/08
CPCG01L19/083
Inventor 左晓军李贝田忠涛郭进成
Owner 航天南洋(浙江)科技有限公司
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