| 摘要 |
<p>To test the integrity of waterproof cases (10) for cameras and like apparatus to be used underwater, a casing (10) with a detector (20) is provided. The air inside the casing is pressurized and the detector (20) indicates leakage based on the difference between the pressurized air and atmospheric pressure. A decrease in pressure of the initial level of pressurized air implies leakage.</p> |
