Test Principle Of Breathability Detector

- Nov 30, 2018-

Place the pre-treated specimen between the upper and lower test cavities, clamp, first vacuum treatment of the low-pressure cavity (lower cavity), and then vacuum the whole system, when the specified vacuum degree is reached, close the test cavity to the high pressure cavity (upper cavity), and ensure that a constant pressure difference (adjustable) is formed on both sides of the specimen.so that the gas will penetrate from the high pressure lateral low pressure side under the action of differential pressure gradient, and through the monitoring and treatment of the internal pressure on the low pressure, the barrier parameters of the tested sample can be obtained.