HIGH-TEMPERATURE CONDUCTOR EDDY-CURRENT CONVERTER Russian patent published in 1995 - IPC

FIELD: measurement technology. SUBSTANCE: converter includes case 1, insulating frame 2, ferrite toroidal core 3, inductance coil 4 and short-circuited current circuit made in the form of coaxial cylinders 5 and 6 and separated by layer 7 of insulation material and sensitive element 9 presenting linear conductor connecting diametrically opposite points of corresponding cylinders on working butt of converter. Expansion of temperature range of operation of converter is provided thanks to removal of inductance coil 4 with ferrite core 3 from zone of measurement. Proposed design of converter also provides for protection of ferrite core 3 and inductance coil 4 of converter against corrosive action of medium in measurement zone. EFFECT: expanded operational capabilities thanks to enlargement of temperature range in measurement zone. 2 dwg