helium mass spectrometer leak detector system for electric vacuum device
Posted on Wed, 01 Jul 2020 06:12:17 +0000
At present, the commonly used reference leak in helium mass spectrometer leak detector system is thin-film helium leakage. The standard leak of 10-8 PA · m3 / S is generally used to calibrate the low-order leakage rate of 10-10 PA · m3 / s. The quantitative results of leak detection are more reli...
Read More