Air leak testing
The automatic
air leak test equipment creates a rush or pressure difference between the area considered hermetic and the exterior of the body to be tested. Each system can perform this test with different methodologies.
Both systems are running a test cycle based on three basic steps:
- Filling, to pressurize the cavity under test
- Settling to stabilize the volume of air blown
- Try if you analyze the trend of the pressure in order to measure a possible decay over time
There are essentially four known methods for the measurement of type Δp/Δt: