| 摘要 |
PROBLEM TO BE SOLVED: To provide a fatigue test device capable of precisely measuring vibrational frequency. SOLUTION: This test device to carry out a vibrational fatigue test of a pipe built-in wire building in a pipe is capable of precisely finding lowering of gas pressure by removing influence of the gas pressure due to a temperature change by converting pressure of gas in the pipe of sample 1 detected by a pressure sensor 4 provided on the sample 1 in the pipe of the pipe built-in wire of which gas is sealed to constant temperature in real time by a personal computer 12. Additionally, it is possible to automatically stop a vibrational mechanism of the test device from its result.
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