Plantar pressure distribution signal acquisition system

Abstract

A plantar pressure distribution signal acquisition system comprises a sensing unit and a control unit. The sensing unit is fixed with feet by a locating foot packing sheet and is a film pressure sensing measurer comprising an upper sheet and a lower sheet; parallel copper claddings are distributed on one of the faces of the upper sheet and the lower sheet at intervals; conductive rubbers are distributed on the copper claddings at intervals, and the conductive rubbers on the upper sheet and the lower sheet are contacted with one another to form sending dots. The control unit is a main control chip; one signal input terminal of the main control chip is connected with two signal output terminals and enabling terminals of a multiplexer of the upper sheet, and the other signal input terminal of the main control chip is connected with two signal output terminals and enabling terminals of a multiplexer of the lower sheet. The system is a large-area pressure distribution measuring device by taking the conductive rubber as a sensing element, and has the advantages of high reliability and precision and low cost, can dynamically measure pressure distribution of a plane and a curved surface in a large-area range in real time, and is suitable for measuring the pressure distribution of vola, buttocks and the like.

Description

technical field [0001] The invention belongs to the technical field of pressure measurement, in particular to a test system for measuring the distribution of foot pressure. Background technique [0002] With the development of technology, the demand for contact pressure detection is also increasing. Traditional contact pressure detection mostly focuses on single point detection. However, many industries need to measure multiple points at the same time to obtain the distribution of contact pressure. In industry, the detection of surface pressure is a research hotspot in recent years. To detect the pressure distribution on a curved surface, multiple sensing points are usually placed, and the sensing unit is made of rubber filled with conductive particles. When external pressure is applied, the resistance of the conductive rubber changes, which in turn causes a change in voltage drop. By detecting the voltage drop, the magnitude and distribution of the external pressure can...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the deficiencies in the prior art, the present invention provides a foot pressure distribution signal acquisition system to solve the technical problem that the traditional pressure test system is not suitable for measuring the pressure distribution of the foot; and solve the low reliability of the traditional pressure test system , low precision and high cost

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