Title :
Universal meter for measuring voltages at high impedances, micromicroamperes, and insulation resistance
Author :
Clark, W. R. ; Watson, R. E. ; Mergner, G. C.
Author_Institution :
Leeds and Northrup Company, Philadelphia, Pa.
Abstract :
A multipurpose instrument is described which can measure direct voltages in high-impedance circuits, small direct currents, and high resistances with good accuracy. The basic detector is a chopper-type stabilized feedback amplifier which is entirely a-c powered.
Keywords :
Current measurement; Electrical resistance measurement; Electron tubes; Instruments; Insulators; Resistance; Voltage measurement;
Journal_Title :
Electrical Engineering
DOI :
10.1109/EE.1954.6439186
