MULTICHANNEL DEVICE MEASURING ROOT-MEAN-SQUARE VALUE OF VOLTAGE Russian patent published in 2003 - IPC

FIELD: measurement technology. SUBSTANCE: proposed multichannel device measuring root-mean-square value of voltage has eight n=8 input buses 1-8, eight voltage repeaters 9-16, low-pass filters 17, 23, amplifier 18,24 with controllable gain factor with control inputs 19, 25, detectors 20, 26, 53 of root-mean-square values, inputs 21, 27, 49, 65 of information register 22, analog multiplexer 28, two counters 29, 30, two differential comparators 31, 32, resistive divider 33 built on resistors 34, 35, analog keys 36, 37, 38, AND gate 39, two OR gates 40, 41, generators 42 of stable periodic pulses, former 43 of short pulses, digital-to-analog converter 44, reference voltage bus 45, capacitors 46, 47, detectors 20, 26 of low-pass filters, bus 48 of device reset to zero, active integrator 52, analog keys 56, 57, 58, 2 x 2 AND-OR 59, gate NOT 60, resistors 61, 62, 63, capacitor 64. EFFECT: enhanced informativity. 1 cl, 6 dwg