Article ID Journal Published Year Pages File Type
726550 Journal of Electrostatics 2015 6 Pages PDF
Abstract

A novel method is proposed for non-contact measurement of static electricity distribution on a surface using focused ultrasound to excite movement of the charge. The focused ultrasound is generated by controlling individually the phases of 285 airborne ultrasound transducers, and it was demonstrated local excitation could be measured. An electric field is induced by local excitation of a charged object. The electric field intensity and phase are related to the surface potential and electrical polarity of the object, respectively. It is possible to measure static electricity distribution over an entire object surface by scanning the position of the focused ultrasound.

Related Topics
Physical Sciences and Engineering Engineering Electrical and Electronic Engineering
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