| 摘要 |
PURPOSE:To accurately measure a heat responsiveness and frequency responsive characteristics of a body to be tested by a method wherein a sharp step type temperature variation and temperature variation having high repetitive frequencies are applied to a body to be tested in a fluid. CONSTITUTION:A high temperature fluid H and a low temperature fluid C are induced into a casing 3 through an inlet nozzle 1H and an inlet nozzle 1C, respectively. The low temperature fluid C flows in a fluid passage 5 through a passage switch 4 and the temperature of a body 6 to be tested is retained in a low temperature. Whereas, the high temperature fluid H is interrupted by the passage switch 4 and passes through a passage installed otherwise to be run out. Next thereto, when the passage switch 4 is rotated by 90 deg., the high temperature fluid H flows in the fluid passage 5, thus, the body to be tested 6 is heated rapidly. |
