Nuclear Magnetic Resonance uses vacuum insulated superconducting magnets at liquid Helium temperature. The SRG Technology can measure the insulation vacuum quality and its change over time, especially during manufacturing and in case of service (magnet at ambient temperature).

Grids / Cables

Superconducting cables are used for loss free electrical energy transport. Besides the efficiency gain, the power density is increased significantly, meaning the same power can be transferred through a small diameter cable ( cm² ) while conventional lines would have to use multiple wires over long distances (m²), especially in cities where it may be the only suitable method. Superconducting cables work at liquid Helium or liquid Nitrogen temperature, vacuum insulated. The vacuum insulated electrical power lines are “per definition long”, theses tubes have a very bad aspect ratio for the generation and measurement of vacuum. The SRG Technology should be able to measure the insulation vacuum quality at different points of the cable during manufacturing, in case of service and, in principle, products can be developed that measure continuously. Applications during operations need to be discussed with our applications specialists.

The page Cryo Technology contains a picture of our SRG VIM-1 in action at a vacuum insulated or vacuum jacketed pipe.

No need to open the sealed vacuum chamberIdeal for monitoring sealed vacuum systems
Easy to connect to port
No electrical feedthroughsChamber remains sealed
Electromagnetic/Mechanical measurementDoes not affect pressure or gas composition
Insensitive to vacuum process and temperature conditions
All-metal Sensor (in metal or glass tube)Contactless measurement provides long-term stability
High accuracy direct vacuum measurement
No component to fail or replace
Cost effective Sensor concept
Glass sensor tube maybe removed and be disposed of before shipment
Removeable Sensor head/readoutElectronics remain protected
Measurement and mounting on demand
One head for multiple sensors
Heads are universal, fit all sensors
High intrinsic accuracy/reproducibilityNo adjustments: Sufficient accuracy for most applications
Long term stability for years
No electronics remain after measurementCorrosion and “outdoor” weather resistant
One-button operationNo special training or specialist needed
Protection cap and magnet for storageNo breakage risk or damage of the ball´s surface
Remote PC controlUser friendly
Serviceable sensorQuick and easy to clean and reassemble
Single connection to multiple units via RS-485 interfaceSimultaneously monitors multiple vacuum chambers