A Comparative Study of a Variable Overlap-area Type and Conventional Types in the Inductive Precision Position Measurement System

자속경로 단면적 및 공극변화를 이용한 인던턴스형 초정밀 변위측정 시스템

  • Published : 2002.02.01


A variable air-gap type system is widely used for inductive precision position measurement systems. This type transducer has high sensitivity but lacks a linear measurement range due to structural nonlinearity. Furthermore, as measurement range increases, linearity error is also increased. The alternative is a variable overlap-area type system. The sensitivity of this type is determined by the initial air-gap dimension, keeps the original value and does not deteriorate linearity in spite of the variations of the measuring range.


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