Piezoelectric acceleration sensor

An acceleration sensor, piezoelectric technology, applied in the field of sensors, can solve the problems of poor voltage resistance and insulation, and achieve the effect of improving voltage resistance and insulation, increasing electrical clearance and insulation creepage distance, and facilitating assembly

Pending Publication Date: 2019-02-12
FATRI UNITED TESTING & CONTROL QUANZHOU TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Therefore, the technical problem to be solved by the present invention is to overcome the defects of poor voltage resistance and insulation of piezoelectric acceleration sensors in the prior art, thereby providing a piezoelectric acceleration sensor

Method used

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Embodiment Construction

[0030] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0031] like figure 1 As shown, the present embodiment provides a piezoelectric acceleration sensor, including: an external component, an internal component and an insulating cover 20 , and an accommodating cavity 1 is formed inside the external component.

[0032] The internal components are arranged in the containing cavity 1 , including a shielding case 11 and a sensor core 12 arranged in the shielding case 11 .

[0033] The insulating cover 20 is arranged in the receiving cavity 1 and is attached to the ou...

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Abstract

The invention provides a piezoelectric acceleration sensor, which comprises an outer assembly, an inner assembly and an insulating hood. A containing cavity is formed in the outer assembly; the innerassembly is arranged in the containing cavity and comprises a shielding hood and a sensor core arranged in the shielding hood; and the insulating hood is arranged in the containing cavity and attachedto the peripheral wall of the shielding hood. The piezoelectric acceleration sensor provided by the invention has good pressure resistance and insulation, and is not prone to breakdown when encountering lightning or abnormal high-voltage input.

Description

technical field [0001] The invention relates to the field of sensors, in particular to a piezoelectric acceleration sensor. Background technique [0002] Due to the rapid development of health monitoring application technology, the monitoring system has higher and higher requirements for the pressure resistance and insulation of the sensor. Piezoelectric acceleration sensors in the prior art have structures such as piezoelectric sensitive elements, mass blocks, and charge amplifiers. Although such sensors can realize the function of detecting vibrations in the surrounding environment, the pressure resistance and surge resistance of this sensor Poor, such a sensor is easily broken down when encountering lightning or abnormally high voltage input, and then a safety accident occurs. Therefore, the pressure resistance and surge resistance of the sensor are directly related to whether the sensor is safe and reliable, and also affect the monitoring system. Whether it is reliable ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01P15/09G01P1/02
CPCG01P15/09G01P1/023
Inventor 聂泳忠付志华林晓强聂川曾婷芳
Owner FATRI UNITED TESTING & CONTROL QUANZHOU TECH CO LTD
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