| 摘要 |
PURPOSE:To conduct a test still through remote operation by providing an wear quantity detecting function element to a probe shoe. CONSTITUTION:The probe shoe consists of a slide part, a wear quantity detection unit 2, and a fixed part 3 for storing it. Then when the wear of the slide part advances until the unit 2 is contacted, a wear quantity detecting unit amplifier 5 which applies a voltage to the unit 2 as a wear detecting circuit forms a closed circuit through the ground and supplies a current. This current is detected by the amplifier 5 and then a signal is sent to a control circuit 7 through a signal processing circuit 6 to stop flaw detecting operation or make a warning display. Thus, the test can be conducted still through remote operation. |
