FIELD: measurement technology. SUBSTANCE: device has sensory element, position transformer, electromagnetic power amplifier and an amplifier having n- cascade DC amplifier. Compensating coil of the electromagnetic power amplifier and scaling resistors are connected to amplifier output. J-cascade DC amplifier is additionally introduced into design. Connection point of the last two scaling resistors is connected to the first cascade input of the j-cascade DC amplifier Connection point of the first scaling resistor and the second output of the compensation coil is connected to j-th cascade output. EFFECT: high accuracy of measurements. 2 cl, 3 dwg
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Authors
Dates
2003-02-27—Published
2001-06-05—Filed