Friction nano generator and self-driving strain sensor and application thereof

A nanogenerator and strain sensor technology, applied in the field of sensing, can solve the problems of limiting the service life of sensors, energy consumption, environmental pollution, etc., and achieve the effects of good cycle performance, long life and good stability
CN110729916AActive Publication Date: 2020-01-24BEIJING INST OF NANOENERGY & NANOSYST
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING INST OF NANOENERGY & NANOSYST
Publication Date
2020-01-24

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Abstract

The invention relates to a friction nano generator and a self-driving strain sensor and application thereof. The friction nano generator comprises a conductive friction structure comprising a conductive friction layer; and a friction structure disposed at intervals with the conductive friction structure, wherein the friction structure comprises a dielectric friction layer disposed opposite to theconductive friction layer, the conductive friction layer contacts with-separates from the dielectric friction layer under the action of a first external force to generate electrical output and the conductive friction layer generates strain under the action of a second external force so that the resistance of the conductive friction layer changes, and at least one of the contact area, the contact separation frequency and the amplitude parameters of the conductive friction layer and the dielectric friction layer changes, thereby generating the electrical output capable of characterizing the strain. The vibration energy or the wind energy is effectively utilized to realize self-driving sensing so as to have potential application value in the characterization of the strain and the force generating strain and the strain limit alarm.
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Description

technical field

[0001] The disclosure belongs to the field of sensor technology, and relates to a friction nanogenerator, a self-driving strain sensor and applications thereof. Background technique

[0002] The energy crisis is getting worse day by day. Energy forms such as wind energy, vibration energy and biomechanical energy widely exist in the surrounding environment. Triboelectric nanogenerator (TENG) is a device that converts mechanical energy in the environment into electrical energy by coupling the frictional electrification effect and electrostatic induction effect. , has the advantages of no pollution, low cost, simple structure, and the ability to collect low-frequency mechanical energy. The design and application of TENG will have strategic significance for energy crisis issues.

[0003] With the rapid development of artificial intelligence, more and more occasions urgently need intelligent devices. As a new type of sensor, strain sensors are widely used in elect...

Claims

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