Compared with single probe testing, the array eddycurrent probes had longer life and simpler mechanical design.
相比于涡流单探头，涡流阵列式探头使用寿命更长，机械设计也更为简单。
2
Detection circuit use impedance - voltage transformation method to detect changes in eddycurrentprobe impedance.
检测电路采用阻抗—电压变换法，检测涡流探头阻抗变化。
3
The system allows metal tube, bar and wire to pass through the eddycurrentprobe with variable high speed, and defects can be accurately located, marked and recorded.