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Negative pressure helium leak detection system

Negative pressure helium leak detection system

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Schematic diagram of system principle
basic function
1. Empty the inner part of the inspected workpiece;
2. Carry out pressure maintaining inspection for inspected workpiece with large leakage;
3. Spray helium on the surface of the inspected workpiece;
4. The helium mass spectrometer is used to automatically judge whether the leakage rate of the workpiece is qualified.
Technical parameters and advantages and disadvantages
1. High detection accuracy;
2. Qualitative and quantitative;
3. Helium consumption is high;
4. The cost of equipment is low.

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