SELF-ACTING CALIBRATOR OF STANDARDS OF MEASURING AND COMPUTING COMPLEX Russian patent published in 2009 - IPC G01R35/00 

FIELD: physics, measuring.

SUBSTANCE: invention concerns the measuring technics, in particular, for metrological certification of multichannel multipurpose gauges of electrical quantities. High-speed key devices (multiplexers M1...M10) switched by signals of the microprocessor of the measuring and computing complex (MCC) are entered. Influence of resistance of key devices of multiplexers at the expense of feed of precision resistor sets RS1...RS7 SAC by a stable current is thus excluded. Calibrator outputs are connected to input circuits of operational MCC amplifiers. And feed of precision resistor sets RS1...RS7 by the "weighed" MCC cells is applied to separate types of data units for the purpose of an exception of the active devices (active neutralisation) in multiplexers (M1...M10) for error and noise reduction at formation of target voltages of the calibrator.

EFFECT: expansion of functionality.

16 cl, 29 dwg