| 摘要 |
According to the invention, two electric lines (14,15) are connected to the surface of a solid electrically-conducting body (10) at two measuring points, situated to both sides of a fissure (11), such as to form a thermoelectric couple and said two lines (14, 15) are connected to a device (13), for measuring the extent of the fissure (11) and to a device (20), for measurement of the temperature near the fissure (11). The recording of the difference in potential between the two measuring points during two successive phases of application and interruption of a continuous electrical current in the body (10) permits the simultaneous production of a measure of the extent of the fissure and a measure of the temperature near the fissure. Of application to determination of the influence of temperature on the propagation of fissures. |
