Nowadays, more and more large turbo molecular pumps or cryogenic pumps are being used to replace oil diffusion pump systems to prevent oil vapor pollution. Therefore, in the past decade, significant improvements and developments have been made to turbomolecular pumps both domestically and internationally.
Compared with oil diffusion pumps, turbo molecular pumps have the characteristics of fast start-up, less organic vapor pollution, and high ultimate vacuum Therefore, using a molecular pump as a high vacuum system in a helium mass spectrometer leak detector, even if the leak detector does not use a liquid nitrogen cold trap, the mass spectrometer chamber will not be severely contaminated and can maintain a low background or noise This is beneficial for improving the sensitivity and stability of helium mass spectrometer leak detectors, and prolonging the service life of ion sources.
The helium mass spectrometer leak detector has a wide mass range and can detect not only helium gas but also other gases. The molecular pump exhaust system replaces the diffusion pump exhaust system, which not only solves the pollution problem of oil vapor on the mass spectrometry chamber, but also makes a great contribution to the rapid start-up and shutdown of instruments.
There is no manual valve in the helium mass spectrometer leak detector, and an automatic control valve is now used to automatically adjust the error during operation. At the same time, a turbo molecular pump was used instead of an oil diffusion pump to eliminate potential oil reflux. Computer technology has also been applied in leak detectors. The operation, control, and output data are all automatically operated by computers. The typical oscilloscope has been replaced by a cathode ray tube imaging screen. The entire operation only needs to be automatically performed by pressing various buttons. You can also use the app to remotely control the leak detector and monitor the leak rate displayed in real-time.
Whether it is a flexible and reliable system for research and development, a heat treatment system for conventional industrial vacuum processing, or a fast and durable portable solution suitable for real-time leak detection in the workshop, corresponding solutions can be provided.
Our company can provide corresponding solutions, whether it is flexible and reliable R&D systems, traditional industrial vacuum processing heat treatment systems, or portable solutions suitable for real-time detection of workshop leaks. Alright, the above is an introduction to the difference between molecular pumps and oil pumps in helium mass spectrometer leak detectors. Have you learned?
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