MULTICHANNEL DEVICE FOR MEASURING ROOT-MEAN-SQUARE VALUE OF VOLTAGE Russian patent published in 1995 - IPC

FIELD: measurement technology. SUBSTANCE: device has input buses 1-8, voltage followers 9-16, controlled amplifiers 18 and 24, filters 17 and 23, root-mean-square value detectors 20 and 26 provided with lower frequency filters, data registrar 22, reference voltage bus 45. Device also has analog multiplexer 28, counters 29 and 30, two comparators 31 and 32, resistive divider 33, analog switches 36-38, AND gate former 43, digital-to-analog converter 44; all the units are brought into the device newly. Control of the device may be improved due to automatic selection of amplification factor, number of outputs of the device may be reduced as well. EFFECT: improved efficiency of operation. 3 dwg