Solid-liquid triboelectrification charge measurement device

Abstract

The invention relates to a solid-liquid triboelectrification charge measuring device, which comprises a motion control module, a Faraday cup, a charge measuring module and a liquid container, whereinthe Faraday cup comprises an inner cup and an outer cup; the liquid container is used for containing to-be-detected liquid; the motion control module is used for controlling the to-be-measured solid to enter the to-be-measured liquid for friction motion, pulling the to-be-measured solid out of the to-be-measured liquid, moving the to-be-measured solid into the Faraday cup and moving the to-be-measured solid out of the Faraday cup; and the charge measuring module is used for measuring the difference value of the potential difference between the inner cup and the outer cup of the Faraday cup, and calculating the transferred charge quantity after the solid to be measured and the liquid to be measured are electrified by friction according to the difference value. The solid-liquid triboelectrification charge measuring device provided by the invention can accurately and effectively measure the amount of charge transferred after solid and liquid triboelectrification.

Description

technical field [0001] The disclosure relates to the field of charge measurement, in particular to a solid-liquid triboelectric charge measurement device. Background technique [0002] Triboelectrification is a common physical phenomenon with a long history of research. This physical phenomenon widely exists in two-phase friction processes such as solid-solid, solid-liquid, and solid-gas. Among them, solid-liquid triboelectrification has been widely used in various fields, for example, in the fields of energy, microfluidics, biochemistry, etc. Some mechanistic explanations for solid-liquid triboelectrification in various fields are relatively lacking. The main reason for this phenomenon is the lack of methods and equipment that can accurately measure the amount of charge transfer at the solid-liquid interface. [0003] The existing methods and equipment in the related art include electrostatic electrode induction method, Kelvin probe force microscope (KPFM) and Faraday cup ...

AI Technical Summary

Problems solved by technology

Among them, solid-liquid triboelectrification has been widely used in various fields, for example, in the fields of energy, microfluidics, biochemistry, etc. Some mechanistic explanations for solid-liquid triboelectrification in various fields are relatively lacking. The main reason for this phenomenon is the lack of methods and equipment that can accurately measure the amount of charge transfer at the solid-liquid interface.

[0003] The existing methods and equipment in the related art include the electrostatic electrode induction method, the Kelvin probe force microscope (KPFM) and the Faraday cup measurement method, but there are problems such as uncontrollable measurement error and low accuracy.

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