Pressure distribution detection device

A pressure distribution and detection device technology, which is applied in the direction of sports accessories, muscle training equipment, gymnastics equipment, etc., can solve the problems of detection temperature influence, poor tailorability and portability, etc.

Active Publication Date: 2012-11-21
INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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  • Abstract
  • Description
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Problems solved by technology

[0006] The purpose of the present invention is to overcome the disadvantages of poor tailorability and portability of the prior art, as well as being affected by the detection temperature, and propose a pressure distribution measurement device

Method used

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0023] Such as figure 1 As shown, the pressure distribution detection device based on the strain gauge array of the present invention includes three parts: a flexible array sensor unit 2 composed of a sensor array, a signal conditioning and data acquisition unit 3, and a data display and analysis unit 4. The flexible array sensor unit 2 is sequentially connected Signal conditioning and data acquisition unit 3 and data display and analysis unit 4 .

[0024] The flexible array sensor unit 2 is composed of a sensor array 1 and a Wheatstone bridge circuit. The sensor array 1 is composed of sensor nodes, each sensor node corresponds to a strain gauge 6, and the strain gauge 6 is a metal foil resistance strain gauge. The strain gauges 6 are arranged in rows and columns to form the sensor array 1 . The row spacing and column spacing of the arrangeme...

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Abstract

A pressure distribution detection device is characterized in that a flexible array sensor unit (2) is sequentially connected with a signal conditioning and data acquisition unit (3) and a data display and analysis unit (4); the flexible array sensor unit (2) consists of a sensor array (1) and a Wheatstone bridge circuit; the sensor array (1) consists of sensor nodes; each sensor node is a strain disc (6); the strain discs (6) are arranged to form the sensor array (1) in a line and row manner; and each strain disc (6) constitutes the Wheatstone bridge circuit with three precision resistors with known resistance values. When ambient pressure is applied on the strain discs (6), the resistors change, and the variation information of the resistance value of the flexible array sensor unit (2) is collected through the signal conditioning and data acquisition unit (3) and is transmitted to the data display and analysis unit (4) after analog-digital conversion to be displayed and analyzed. The invention is applicable to such fields as biomechanical engineering, medical rehabilitation and rehabilitation assistant property detection.

Description

technical field [0001] The invention relates to a pressure detection device, in particular to a measuring device in the field of medical rehabilitation. Background technique [0002] In the fields of biomechanical engineering, medical rehabilitation, performance testing of rehabilitation aids, etc., it is necessary to accurately and real-time understand the pressure distribution of the contact surface between the human body and assistive devices, so as to provide quantitative basis for clinical effect evaluation, adjustment and update of assistive devices. The pressure distribution of the present invention is a measuring instrument developed based on this requirement. [0003] At present, according to the type of sensor used, the methods of pressure distribution measurement can be divided into pressure imprinting, resistive, and capacitive. Hall effect etc. There have been 40 years of research on pressure distribution measurement methods abroad, and the mature products are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/22
Inventor 夏慧刘国强季素云
Owner INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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