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Displacement sensors based on electroactive elastomeric polymers

A technology of displacement sensor and elastomer, which is applied in the field of sensors, can solve the problems that cannot be used to realize displacement measurement, etc., and achieve the effects of shortening the development cycle, reducing costs and making production convenient

Active Publication Date: 2019-01-25
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these two inventions only involve the design of press-in pressure sensors, which generally have a square configuration on the plane and cannot be used for displacement measurement.

Method used

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  • Displacement sensors based on electroactive elastomeric polymers
  • Displacement sensors based on electroactive elastomeric polymers

Examples

Experimental program
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Effect test

Embodiment 1

[0034] Such as Figure 1~2 As shown, the displacement sensor based on electroactive elastomeric polymers in this embodiment includes: a sensor device, a first connection electrode 4, a signal production and conditioning device 5, a signal feedback and detection device 6, and a second connection electrode 7, in:

[0035] The sensor device is a multilayer structure of a cuboid with an aspect ratio of 10 and a thin layer thickness of 1 mm, including from top to bottom: protective layer 1, flexible electrode layer 2, electroactive elastomeric polymer layer 3, flexible electrode layer 2 and protective layer 1.

[0036] The material of the protective layer 1 is soft and can be in contact with the human body. The function is to prevent the flexible electrode layer 2 from being directly exposed to the outside world, and at the same time facilitate installation and different application occasions.

[0037]The flexible electrode layer 2 is evenly covered on the upper and lower sides ...

Embodiment 2

[0044] The difference between the displacement sensor based on the electroactive elastomeric polymer of this embodiment and the embodiment 1 is that the sensor device is a multilayer structure of a cuboid with an aspect ratio of 12 and a thin layer thickness of 0.5 mm.

Embodiment 3

[0046] The difference between the displacement sensor based on the electroactive elastomeric polymer of this embodiment and the embodiment 1 is that the sensor device is a multilayer structure of a cuboid with an aspect ratio of 15 and a thin layer thickness of 0.2 mm.

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Abstract

The invention discloses a displacement sensor based on an electroactive elastomer polymer, which comprises a signal generating and conditioning device, a first connection electrode, a sensor device, a second connecting electrode and a signal feedback and detection device, wherein the sensor device is of a multilayer structure and comprises a protective layer, a flexible electrode layer, an electroactive elastomer polymer layer, a flexible electrode layer and a protective layer from top to bottom; and the sensor device has a great length-width ratio and high thin-layer thickness. The displacement sensor based electroactive elastomer polymer is simple in structure, convenient to manufacture, flexible in material and structure parameter selection and capable of being applicable to different working condition requirements, has the characteristic of full flexibility, and can be applied to the fields of artificial muscle, artificial organ and human body movement function detection, wearable equipment, medical rehabilitation and the like.

Description

technical field [0001] The invention relates to the technical field of sensors, in particular to a displacement sensor based on electroactive elastomeric polymers. Background technique [0002] With the development of soft robot technology, rigid drive and sensing technology in the traditional sense cannot meet the requirements. Soft robots widely use elastic or viscoelastic material elements, which have the ability of unlimited freedom of motion and continuous deformation, and can change their shape and size arbitrarily in a wide range. How to design flexible sensors to measure the displacement changes of soft actuators and robots is a hot spot and challenge in current research. [0003] After searching the existing technical literature, it was found that the Chinese application number is 201410803826.1, and the name is "press-in dielectric elastomer pressure sensor", and the Chinese application number is 201510142816.2, and the name is "distributed flexible sensor based o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B7/02
Inventor 谷国迎朱利民朱向阳
Owner SHANGHAI JIAO TONG UNIV
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