| 摘要 |
A leak tester which detects leakage of a gas from a measured object, the leak tester including a source of a pressurized gas which supplies the pressurized gas, a differential pressure detecting section which detects a pressure difference between the pressure of a gas in the measured object and the pressure of a pressurized gas supplied by the source of the pressurized gas, and a pressure adjusting section which makes the pressure of the pressurized gas supplied by the source of the pressurized gas constant. |
