Flexible film tactile sensor and production method thereof

A tactile sensor, flexible film technology, applied in sensors, measurement of the properties of piezoelectric devices, instruments, etc., can solve the problems of complex process, poor film uniformity, strong equipment dependence, etc., to achieve good flexibility Effect

Inactive Publication Date: 2014-03-05
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The CVD method needs to add catalysts to grow at high temperature, the process is complicated, and the efficiency is low, and the equipment dependence is strong, so it is not suitable for electroactive polymer film substrates
Coating method and inkjet printing method overcome the defects of CVD method, but the uniformity of thin film preparation is poor, the contact between carbon nanotubes and electrodes is not firm, and the area selectivity of coating or printing is difficult to control accurately

Method used

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  • Flexible film tactile sensor and production method thereof
  • Flexible film tactile sensor and production method thereof
  • Flexible film tactile sensor and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The following embodiments will further illustrate the present invention in conjunction with the accompanying drawings.

[0023] see figure 1 , the embodiment of the present invention is provided with electroactive polymer film 5, carbon nanotube composite film electrode layer 3 and 7, polyimide flexible insulation protection layer 2 and 8, device surface peripheral electrode anchor region 1, 4, 6 and 9 . The embodiment of the present invention has a sandwich structure. Under the action of no tactile or motion pressure, the electric domains 10 inside the electroactive polymer film are randomly distributed and cancel each other out, and no charge is generated on the surface electrode layer.

[0024] Embodiments of the present invention are under the action of touch or stress, such as figure 2 As shown, the distribution and orientation of the electric domains 10 inside the electroactive polymer film are consistent, and the upper and lower surfaces of the electrode layer...

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PUM

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Abstract

The invention relates to a flexible film tactile sensor which is formed by an electroactive polymer film matrix, a carbon nanotube composite film electrode layer, an electrode lead, and a polyimide film protection layer. The carbon nanotube composite film is a multi-layer network-shaped film composed of a carbon nanotube and polymer electrolyte; an electrostatic induction self-assembly method is used to make a pair of compliant electrode layers on upper and lower surfaces of the electroactive polymer film matrix; a peripheral electrode anchor zone through a metal electrode lead is integrated with a charge amplifier as a whole to from a tactile sensor; and a microprocessor or a computer is used to realize signal acquisition, storage, display and processing. The flexible film tactile sensor can be closely adhered to the surface of the measured object so as to measure the tactile perception performance of the object, can be cut into any shape, and has the characteristics of being reliable, flexible, rapid in response, and the like.

Description

technical field [0001] The invention relates to a tactile sensing device and a preparation method thereof, in particular to a flexible tactile sensing device based on carbon nanotube / electroactive polymer film. Background technique [0002] Tactile sensing sensors have important influence and extensive application background in the field of sensors, and are of vital significance to robotic electronic skin, medical care for special populations, health monitoring, and training quantification. With the development of microelectronics technology and the emergence of various sensitive materials, a variety of tactile sensing sensors have been proposed, but most of them are in the laboratory stage. The currently widely used silicon-based tactile sensors are expensive, lack flexibility, have a single shape, require expensive instruments and a high-purification environment for processing, and have poor biocompatibility. Relatively speaking, flexible polymers have many advantages, in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L1/16G01B7/30A61B5/00
Inventor 张冬至童俊刘哲
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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