| abstract |
Small-size, highly-sensitive, high-powered shock-wave ultrasonic device for testing highly absorbent bodies such as rock, marble, refractories or metals at high temperature, exceeding 1000 °C, said device comprising the following elements: n -mechanical shock-wave ultrasonic generator; (A) n -detector transducer; (B) n-means for synchronizing signal between generator and detector; (5) n -means for recording transmitted signal. (12) |