Title :
An autoranging voltmeter circuit without range resistors
Author_Institution :
DB Data Processing, New Rochelle, NY, USA
Abstract :
An autoranging circuit for digital voltmeter without range resistors is presented. The circuit uses a microprocessor-based time-averaging technique. This technique can achieve an accuracy comparable to a 41/2 digit DVM in 5-decade range. An autozero and autopolarity circuit is also presented.
Keywords :
computerised instrumentation; digital voltmeters; autopolarity circuit; autoranging voltmeter; autozero circuit; computerised instrumentation; digital voltmeter; microprocessor-based time-averaging technique; Accuracy; FETs; Frequency measurement; Microprocessors; Oscillators; Temperature distribution; Voltage measurement;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.1981.6312413
