4단자 방식 계측장치

Four port type tester

Abstract

A four terminal type measuring device includes a measuring body comprising a DC power source and a detector, and a cable connected to both DC power source and detector to send the value measured to the detector. The cable includes a matcher, and four terminals are formed between the measuring body and the macher. The length between the matcher and the probes is very short, so that remove line resistance and impedance error. The measuring device is able to measure impedance accurately regardless of length and state of cable for measurment.
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