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Film-type wind pressure sensor and corresponding wireless sensor network

A wireless sensor network and wind pressure sensor technology, applied in the pressure field, can solve the problem of low sensitivity of the wind pressure sensor, and achieve the effects of large deformation, convenient installation, and simple structure

Active Publication Date: 2012-05-16
THE HONG KONG RES INST OF TEXTILES & APPAREL
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a flexible material as the sensitive element, which is suitable for large deformation, Thin-film wind pressure sensor and corresponding wireless sensor network for high-sensitivity fluid pressure monitoring in open environment and any direction

Method used

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  • Film-type wind pressure sensor and corresponding wireless sensor network
  • Film-type wind pressure sensor and corresponding wireless sensor network
  • Film-type wind pressure sensor and corresponding wireless sensor network

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Embodiment Construction

[0021] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0022] Such as figure 1 , 2 In the structural schematic view of the preferred embodiment of the shown film-type wind pressure sensor of the present invention, the film-type wind pressure sensor includes a top cover 1, a cavity 2, a chassis 3 and a circular air-tight film 4, the air-tightness The airtight film 4 is sandwiched between the top cover 1 and the cavity 2, and a conductive fabric strain sensor 41 is arranged on the airtight film 4, and the conductive fabric strain sensor 41 is connected to an external resistance measuring circuit. When the film type wind pressure sensor is used, since t...

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Abstract

The invention relates to a film-type wind pressure sensor which comprises a top cover, a cavity, a chassis and a circular air-tight film, wherein the air-tight film is sandwiched between the top cover and the cavity; and the air-tight film is provided with conductive fabric strain sensors which are connected with an external resistance measuring circuit. The central zone of the air-tight film is provided with the three conductive fabric strain sensors which are bonded to the internal surface of the air-tight film by an included angle of 120 degrees. The invention also relates to a wireless sensor network. By using flexible materials as the sensing elements, the film-type wind pressure sensor and the corresponding wireless sensor network are suitable for high-sensitivity monitoring of pressure intensity of a fluid in a large-deformation and open environment in any direction.

Description

technical field [0001] The invention relates to the field of pressure, more specifically, to a film-type wind pressure sensor based on large deformation of fabric, open environment and high sensitivity and a corresponding wireless sensor network. Background technique [0002] Most of the existing wind pressure sensors use traditional metal as the sensitive element, and the strain gauge technology is used to measure its small deformation, and its sensitivity is very limited. Wind rotating blades are also mostly used to measure wind pressure in pipelines. The piezoelectric thin film technology is not good for the measurement of constant static pressure. In addition, most existing sensing technologies only measure wind pressure in a fixed direction. To sum up, there is currently no sensor network that can use flexible materials as sensitive elements, and is suitable for monitoring fluid pressure with high sensitivity in large deformation, open environments, and arbitrary dire...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L9/04
CPCG01L1/20G01B7/18
Inventor 陶肖明朱波华涛王杨勇舒琳孙少敏
Owner THE HONG KONG RES INST OF TEXTILES & APPAREL
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