| 摘要 |
PCT No. PCT/FR95/01321 Sec. 371 Date Jun. 3, 1996 Sec. 102(e) Date Jun. 3, 1996 PCT Filed Oct. 11, 1995Two electrical wires are connected to the surface of an electrically conductive solid body at two measurement points located on either side of a crack in the surface of the body. The two wires form a thermoelectric couple. A constant DC current is applied to the body. The two wires are connected to a device for measuring the extent of the crack and another device for measuring the temperature of the crack. By measuring the potential difference during application and interruption of the DC electric current to the body, it is possible to simultaneously obtain a measurement of the extent of the crack and a measurement of the temperature of the crack.
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