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Electrical signal output device, positioning device and positioning method based on elastic component

A technology of elastic components and output devices, applied in electromechanical devices, positioning, measuring devices, etc., can solve problems such as low energy conversion efficiency and low sensing sensitivity, and achieve improved effective contact area, high sensitivity, and wide application prospects. Effect

Active Publication Date: 2019-11-01
BEIJING INST OF NANOENERGY & NANOSYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the vibration energy in the environment is generally weak, and the frequency is mainly in the lower frequency range, and has a wide frequency distribution range, the current nanogenerator is used for the detection and energy collection of mechanical vibration in the environment. , has the defects of low sensing sensitivity and low energy conversion efficiency

Method used

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  • Electrical signal output device, positioning device and positioning method based on elastic component
  • Electrical signal output device, positioning device and positioning method based on elastic component
  • Electrical signal output device, positioning device and positioning method based on elastic component

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] Embodiment 1 Electrical signal output device

[0062] figure 2 It is a typical structure of the electrical signal output device of the present invention. It includes: a support member 40, an elastic member 30 suspended on the inner upper surface of the support member 40, a first friction member 10 fixed relatively to the free end of the elastic member 30, and a second friction member 20 placed face to face with the first friction member, wherein the first The lower surface of a friction member 10 is the first friction surface 101, the upper surface of the second friction member 20 is the second friction surface 201, the two friction surfaces are opposite, and both are made of materials with different triboelectric series; the first The upper surface of the friction component 10 is the first conductive surface 102 , the lower surface of the second friction component 20 is the second conductive surface 202 , and the two conductive surfaces are respectively electrically ...

Embodiment 2

[0081] Embodiment 2: positioning device

[0082] The present invention uses the aforementioned electrical signal output devices to form a positioning device capable of locating external vibrations, which specifically includes: two or more of the aforementioned electrical signal output devices, electrical signal recording and analysis devices, wherein the electrical signal The recording and analysis device is capable of recording the value of the electrical signal itself as well as the time at which the electrical signal was generated. The positioning device can determine the relative position of the vibration source and each electrical signal output device by analyzing the relative position of each electrical signal output device, the time difference of generating the electrical signal and the vibration propagation speed, thereby realizing the positioning function. It is based on the principle that under the premise that the vibration conduction surface medium material is unif...

Embodiment 3

[0087] Embodiment 3: Three-point positioning method

[0088] The present invention also provides a positioning method using the positioning device described in the second embodiment, wherein the positioning device needs to have three electrical signal output devices. The method comprises the steps of:

[0089] (1) Fix the three electrical signal output devices marked STENG1, STENG2 and STENG3 on different positions of the vibration conducting surface;

[0090] (2) Use a multi-channel electrical signal recording and analysis device to simultaneously record the output signals of 3 electrical signal output devices;

[0091] (3) The electrical signal recording and analysis device establishes a plane coordinate system with the middle position of the three electrical signal output devices as the coordinate origin, so that the three electrical signal output devices are respectively placed in different quadrants of the coordinate system;

[0092] (4) Input the distance l between STE...

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PUM

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Abstract

The invention discloses an electric signal output device based on an elastic part, a positioning device and a positioning method. The electric signal output device is constructed by combining the instable elastic part with self-balancing capacity and a nano material, broadband vibration energy in a low-frequency range can be acquired, and a vibration source can be detected and positioned. The elastic part in a balanced critical state has the characteristic of being extremely sensitive to an external disturbance; according to the structure, vibration can be carried out beside a balance point, and automatic balance recovery can be achieved; under an external weak vibration disturbance, the vibration energy can be picked up by virtue of the mechanical structure, and the periodic contact separation change of different frictional electricity materials in the electric signal output device is achieved, so that electric output is generated. The electric signal output device has the characteristics of low cost, portability, simple structure and the like.

Description

technical field [0001] The invention relates to an electrical signal output device, in particular to an electrical signal output device based on elastic components that is extremely sensitive to vibration, a positioning device based on the electrical signal output device and a positioning method using the positioning device. Background technique [0002] Vibration is a common mechanical phenomenon in the living environment, such as the vibration of engines, the vibration of bridge buildings, the swing of aircraft, and the ups and downs of sea waves. In many cases, in order to stabilize the structure and reduce noise, we need to use anti-vibration technology, so it is of great significance to sensitively detect and accurately locate the vibration source. On the other hand, vibration is also a kind of energy. The energy harvester is to convert the energy in the environment into electrical energy. Researchers have carried out various corresponding works from the following aspe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K35/02G01S5/18
Inventor 胡又凡杨进王中林
Owner BEIJING INST OF NANOENERGY & NANOSYST