Title :
Widely extended new method for measuring the impedance (C xRx) at high frequencies with applications
Author :
Ichijo, Bunjiro ; Masuda, Yoshiharu ; Tarao, Norio ; Sada, Minoru
Author_Institution :
Hamamatsu Hygienic Coll., Japan
fDate :
2/1/1989 12:00:00 AM
Abstract :
A method is described for the accurate measurement of the equivalent parallel capacitance Cx and resistance Rx of very high loss materials at high frequencies. The important characteristic of the method is its capability of measuring the value of Cx extending from 10-2 to 106 pF and Rx from 10 to 100×106 Ω. The authors measure the humidity of tea leaves and rockwool by measuring the capacitance Cx of specimens irrespective of the value of Rx
Keywords :
capacitance measurement; dielectric measurement; electric impedance measurement; humidity measurement; 1×10-2 to 1×106 pF; 10 to 100×106 ohm; electric impedance measurement; equivalent parallel capacitance; humidity of tea leaves; rockwool; very high loss materials; Capacitance measurement; Circuit testing; Dielectric measurements; Electrical resistance measurement; Equivalent circuits; Frequency measurement; Humidity measurement; Impedance measurement; Loss measurement; Switches;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
