THE ANALYSIS OF DIELECTRICS' SURFACE POTENTIAL MEASURING TECHNIQUE BASED ON A CURRENT FEEDBACK SCHEME
Abstract
The comparative analysis of time-varying probe methods of measurement of a surface potential is held. Regarding contactless measurement of dielectrics' surface potential in a wide range of meanings, a current feedback scheme is found to be optimal. Advantages of this scheme are high spatial resolution, a wide measuring range and an independence of output signal on a probe-to-surface gap in a certain range of gap meanings. Metrological characteristics of the scheme are analyzed resulting in a mathematical expression for a normalized methodical measurement error.
About the Authors
A. K. Tyavlovsky
Belarusian National Technical University
Belarus
Belarus
A. L. Zharin
Belarusian National Technical University
Belarus
Belarus
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Review
For citations:
Tyavlovsky A.K., Zharin A.L. THE ANALYSIS OF DIELECTRICS' SURFACE POTENTIAL MEASURING TECHNIQUE BASED ON A CURRENT FEEDBACK SCHEME. Devices and Methods of Measurements. 2011;(2):136-144. (In Russ.)
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