| 摘要 |
FIELD: metallurgy. ^ SUBSTANCE: device contains detector element, signal cable and signal processing processor. Detector element allows metal case, and inside the detector element are tandemed: test coil, filling layer, drive winding and compensation winding. All winding are winded in spiral groove of insulation barriers and filling barriers, which consist of insulating sheets with grooves and filling insulating black with grooves, correspondingly, and each groove coil is shift lengthwise the axial direction of detector element one by one. ^ EFFECT: increasing of sensitivity and reliability of instrumentation. ^ 5 cl, 5 dwg, 1 ex |
