... Thyristor (SCR) composed of non-contact electronics, circuit, which with advantages of lower noise, long life, small volume, light weight ... yoke detectors or fillet weld detector CJX-A, the probe with active joints, wide utilization. Polar distances: 0 ~ 190 mm, lifting ... yoke detectors or fillet weld detector CJX-A, the probe with active joints, wide utilization. Polar distances: 0 ~ 190 mm, lifting ...