| 摘要 |
PURPOSE:To enable reproducible stable measurement by adjusting the temperature of matching liquid in accordance with an output from a temperature sensor for detecting a temperature of an object to be examined which is located in a tank together with the matching liquid, so as to make the temperatures of them coincident with each other. CONSTITUTION:A heel 30 as an object to be examined is set into a measuring tank 23, and is fixed between ultrasonic transducers 24a, 24b. A temperature sensor 29 is made into contact with the object 30 to be examined so as to detect a temperature thereof. Matching liquid is poured into the tank 23 through a filling port 26 up to a level determined at a liquid level meter 25 so as to have a predetermined depth. A matching liquid temperature detecting means 16 adjusts the temperature of the matching liquid so as to make the temperature thereof coincident with the temperature of the object to be examined. Then, a main control part 17 causes an ultrasonic wave generation control means 13 to generate ultrasonic waves which is received by an ultrasonic wave detecting means 14, and the sound velocities and damping rates, and the like of the ultrasonic waves are calculated and stored in memory. Thereby it is possible to carry out reproducible and stable measurement. |
