1.  There are two approaches of leak detection in helium mass spectrometer, 1 is typical leak detection, the other is reverse diffusion leak detection. The theory of inverse diffusion is revealed in the determine. https://www.labideal.com is to connect the analyzed piece to 1 stop of the outlet of the molecular pump, and the leaked helium enters the mass spectrometer tube mounted in the air inlet conclude of the pump from the outlet of the molecular pump from the exhaust course of the pump and is detected.
2.  This leak detection strategy is based on the different compression ratio (the ratio of the force at the outlet of the molecular pump to the force at the inlet) of the molecular pump for distinct mass of gasoline, that is to say, it is designed with various degrees of reverse diffusion of diverse gases.The reverse diffusion leak detection technique enables large internal strain of the inspected parts. The sfj-231 / 241 helium mass spectrometer leak detector can attain 1000Pa (typically, the traditional leak detector is under .05pa). It is appropriate for the detection of massive containers or gadgets with big leakage, and it is also suited for the detection of suction gun leak. The reverse diffusion technique also has the benefits of not simple to be polluted and extended filament lifestyle.
3.  View far more vacuum components at www.labideal.com.
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