Title :
Analysis of a dielectric measuring circuit using commercial software
Author :
Blair, D.T.A. ; Abravesh, H.
Author_Institution :
Dept. of Electron. & Electr. Eng., Strathclyde Univ., Glasgow, UK
Abstract :
The Microcap circuit-analysis package was used to study a measuring circuit when a step voltage is applied to a dielectric specimen in series with the circuit and an operational amplifier is employed to provide an output suitable for driving a recording device. The authors investigated the effects of connecting an operational amplifier into the circuit in two different modes: the voltage-follower mode and the current-voltage converter mode. The treatment of the offset voltage, bias current, and offset current is described. Results are given for the AD515L operational amplifier and the AD310/311 operational amplifier. The minimum acceptable amplifier performance is discussed
Keywords :
circuit analysis computing; dielectric measurement; operational amplifiers; software packages; AD310/311; AD515L; Microcap circuit-analysis package; bias current; commercial software; current-voltage converter mode; dielectric measuring circuit; dielectric specimen; minimum acceptable amplifier performance; offset current; offset voltage; operational amplifier; step voltage; voltage-follower mode; Capacitance; Circuit simulation; Current measurement; Dielectric devices; Dielectric measurements; Equivalent circuits; Frequency; Impedance; Software measurement; Voltage;
Conference_Titel :
Conduction and Breakdown in Solid Dielectrics, 1989., Proceedings of the 3rd International Conference on
Conference_Location :
Trondheim
DOI :
10.1109/ICSD.1989.69195
