Real-time detection device for contact area of friction nano-generator based on force feedback principle

Abstract

The invention relates to the field of optical-mechanical-electrical equipment, in particular to a device capable of detecting the contact area of a friction nano-generator in real time based on a force feedback principle. A single-chip microcomputer controls the contact and separation of a measured polymer film and an ITO film, and a pressure sensor obtains a change load signal borne by the measured polymer film and transmits the change load signal to the single-chip microcomputer to provide a position feedback signal for the system; a voltage signal generated by a friction nano-generator is transmitted to a computer according to the principle of triboelectricity generation and electrostatic induction; and a contact area image of the measured polymer film and the ITO film is obtained through a CCD image sensor by utilizing an optical measurement principle, and the real contact area of the measured polymer film and the ITO film is calculated by utilizing calculation software. The devicecan detect the real contact area of the friction nano-generator in real time during when the friction nano-generator works, realizes real-time detection of the relationship between the voltage outputperformance of the polymer film and the contact area of the polymer film, and provides great convenience for the research field of the performance of the friction nano-generator.

Description

technical field [0001] The invention relates to the field of optical electromechanical equipment, in particular to a device based on the principle of force feedback that can detect the contact area of ​​a frictional nanogenerator in real time. Background technique [0002] Energy issues are one of the major issues that affect human progress and sustainable development. Various researches on the development of new energy and the reuse of renewable energy are being carried out in full swing around the world; Since the harvesting of mechanical energy, mechanical energy harvesting technologies based on piezoelectric and triboelectric effects have attracted widespread attention from the scientific community, especially the triboelectric nanogenerator proposed in 2012, which has stimulated the research enthusiasm of many teams around the world. The group studied the materials and their relative properties of the triboelectric nanogenerator, and found that the contact area of ​​the...

AI Technical Summary

Problems solved by technology

[0002] Energy issues are one of the major issues that affect human progress and sustainable development. Various researches on the development of new energy and the reuse of renewable energy are being carried out in full swing around the world; Since the harvesting of mechanical energy, mechanical energy harvesting technologies based on piezoelectric and triboelectric effects have attracted widespread attention from the scientific community, especially the triboelectric nanogenerator proposed in 2012, which has stimulated the research enthusiasm of many teams around the world. The group studied the materials and their relative properties of the triboelectric nanogenerator, and found that the contact area of ​​the polymer film that constitutes the triboelectric nanogenerator largely determines the output performance of the triboelectric nanogenerator; however, the current quantitative research The relationship between the contact area and the output performance mainly depends on software simulation. There are few reports on experimental research, and there is no relevant test and characterization equipment. It is impossible to detect the relationship between the voltage output performance of the polymer film and its contact area in real time.

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