FIELD: measuring processes and equipment, namely devices for non-destruction control of electrically conductive and ferromagnetic materials. SUBSTANCE: eddy current transducer having two similar measuring coils, capacitor includes additional coil and operational amplifier. Resistive member is in the form of potentiometer whose mean terminal through capacitor is connected with inverse inlet of operational amplifier whose non-inverse inlet is grounded. Additional coil is connected in series and in accordance with first outlets of measuring coils; said first outlets are also connected with terminals of potentiometer. AC voltage is supplied to second outlet of each measuring coil in counter phase; its outlet is outlet of operational amplifier. EFFECT: enhanced accuracy of measurement, improved resolution of eddy-current transducer. 10 cl, 6 dwg
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Authors
Dates
2003-06-27—Published
2000-12-28—Filed