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A flexible force sensor capable of measuring normal and tangential forces

A technology of flexible force and tangential force, which is applied in the direction of measuring force, measuring devices, instruments, etc., can solve the problems of low measurement sensitivity and unfavorable relative displacement of electrode plates, etc., to achieve ease of use, improve force measurement sensitivity, and increase capacitance change value effect

Inactive Publication Date: 2016-08-24
宁波华铸环保科技有限公司
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  • Abstract
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Problems solved by technology

However, the dielectric layers involved in the above two documents are all solid filling structures, which is not conducive to the relative displacement between the electrode plates, resulting in low measurement sensitivity

Method used

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  • A flexible force sensor capable of measuring normal and tangential forces
  • A flexible force sensor capable of measuring normal and tangential forces
  • A flexible force sensor capable of measuring normal and tangential forces

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0021] like Figure 1 ~ Figure 2 As shown, a flexible force sensor that can measure normal and tangential force includes a flexible force sensitive unit and a detection circuit unit. From top to bottom, the flexible force sensitive unit is an upper flexible electrode plate layer 1 , a flexible support layer 2 and a lower flexible electrode plate layer 3 . The upper flexible electrode plate layer 1 and the lower flexible electrode plate layer 3 are planar electrodes made of flexible conductive rubber or flexible silicon rubber material as the base surface coated with a conductive layer. The flexible support layer 2 is composed of a flexible support body with voids and filling gas located in the voids of the flexible support body. The flexible support accounts for 30% to 70% of the space of the flexible support layer, and the rest is filled wit...

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Abstract

The invention provides a flexible force sensor capable of measuring the normal force and tangential force. The flexible force sensor comprises a flexible force sensing unit and a detection circuit unit electrically connected with the flexible force sensing unit. The flexible force sensing unit is composed of an upper flexible electrode plate layer, a lower flexible electrode plate layer and a flexible supporting layer located between the upper flexible electrode plate layer and the lower flexible electrode plate layer. The flexible supporting layer is composed of flexible supporting bodies with gaps and filling gas located in the gaps of the flexible supporting bodies. According to the flexible force sensor capable of measuring the normal force and tangential force, the flexible supporting layer is adopted to replace a traditional solid dielectric layer, the capacitance change value generated when stress is conducted on the sensor is effectively increased, and the force measuring sensitivity is improved remarkably.

Description

technical field [0001] The invention relates to the technical field of physical measuring instruments, in particular to a flexible force sensor capable of measuring normal and tangential forces. Background technique [0002] The mechanical sensor is a sensor device that converts various mechanical measurements into electrical signals, and is widely used in various aspects of production and life. Moreover, with the rapid development of electromechanical devices such as portable electronic devices, wearable devices, and intelligent robots, micro sensors with the advantages of small size, light weight, low power consumption, and high reliability have begun to be widely used. [0003] The capacitive mechanical sensor converts the detected mechanical quantity into a capacitance measurement value. It has a series of advantages such as simple structure, high sensitivity, large measurement range, short dynamic response time and good stability. It is currently a hot spot in the devel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L1/14
Inventor 潘宏青魏璇王菲露汪玉冰曹平国双丰
Owner 宁波华铸环保科技有限公司
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