| 摘要 |
A leak tester (1) for detecting leakage of gas in an article (2) being measured, comprising a pressurized gas supply (11), a section (19) for detecting the difference between the pressure of gas in the article (2) and the pressure of gas supplied from the pressurized gas supply (11), and a pressure regulating section (20) for making constant the pressure of gas supplied from the pressurized air supply (11). |
