| 摘要 |
PURPOSE:To enable efficient observation without being acted by adverse effect due to the change in temp. of the circumference or during observation, by providing a heat generator and a temp. detection means to a specimen stand to control the temp. of an ultrasonic wave propagating medium. CONSTITUTION:A specimen stand 27 has an upper flat surface capable of mounting a specimen and is formed so as to have a lid shape and mounted to the upper part of a support plate 31 through a heat insulating member 34. A flat plate shaped heater 36 is mounted to the back surface inside the specimen stand 27 through an insulating sheet 35. A fine temp. detecting insert slot 38 is formed from the notch part 37 formed to the upper side part of the specimen stand 27 to the center of the specimen stand 27 and a temp. detecting rod shaped thermistor 39 is arranged in said slot 38. The thermistor 39 is connected to a temp. controller to control the flat plate-shaped heater 36.
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