Patent ID: 6243652
Filing Date: 2001-06-05
Classification: G01R

Abstract:
A voltage measurement system for measuring the voltage across a sample electrical device comprising:an amplifier connected to said sample electrical device for amplifying the signal presented at the output of said sample electrical device via an alternating current source;a digitizer connected to said amplifier for digitizing said signal, said signal comprising pulses;a digital peak detector connected to said digitizer and comprising a capture memory device, said digital peak detector being programmed to generate pulse capture windows, to determine changes in the polarity of said signal, and to control when data relating to at least one of said pulses occurring in at least one of said pulse capture windows is stored in said capture memory device in accordance with said pulse capture windows and the polarity o f said signal;a root mean square memory device for storing samples of said signal at predetermined intervals; anda processing circuit programmable to generate peak-scaled-to-root-mean-square data using data stored in said capture memory device and true root mean square data using said samples stored in said root mean square memory device.