MICRO DIFFERENTIAL EDDY CURRENT PROBE USING AMORPHOUS CORE AND 2-DIMENSIONAL SENSOR USING THE SAME

摘要

Purpose: meeting, identical 2 dimensional sensors for being arranged to be fabricated in micro-dimension and CCD camera type is provided are sung using the other eddy current probe of an elementary errors of amorphous core and one 2 dimensional sensors. Construction: the other eddy current probe of an elementary errors using amorphous core includes about one core spool (1a, 1b), sense coil (3a, 3b), a gasket (2) and an excitation coil (4). Core spool (1a, 1b) includes nonmagnetic and non-conductive material, and an amorphous core is inserted in the hole formed on a tail spindle of spool. Sense coil (3a, 3b) is in the opposite direction wound on spool. Gasket (2) is a non-conductor and is inserted between spool. Excitation coil (4) is wound on gasket.