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Measurement of 1/f noise using a contact-free current-driving scheme

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2 Author(s)
Sumihisa Hashiguchi ; Faculty of Engng., Yamanashi Univ., Kofu, Japan ; Yoshitaka Suzuki

A method is proposed to measure the 1/f noise of resistance materials without using current driving contacts. Alternating current is induced in a ring-shaped sample by an AC magnetic flux. Good agreement was obtained between data using this method and the conventional four-probe method. The contact-free method is superior for measuring the 1/f noise in those materials upon which ohmic contacts are difficult to form.

Published in:

IEEE Transactions on Instrumentation and Measurement  (Volume:IM-31 ,  Issue: 3 )