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Helium Leak Detection in Vacuum Chambers

Helium leak detectors are used to test the performance of seals used in vacuum chambers. Ferrotec of Woolwich in London produces ferrofluid materials for these seals to meet the most extreme performance requirements. To test the seals, they are mounted on a vacuum chamber connected to a helium leak detector, which sprays helium onto the feedthrough and measures the leak rate during static and dynamic running. To measure the starting and running torque of the seal and the power loss, Ferrotec uses Sensor Technology’s non-contact TorqSense.

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