Cryostats Leak Detection System
Some military applications require the use of low temperatures to operate properly. This is the case for telescopes using infrared receivers, which must be sufficiently cooled so as not to radiate parasitic energy to the measurements.
In order to do so, it is necessary to implement nitrogen or liquid helium cryostats to reach temperatures of the order of a few degrees (Kelvin degrees).
Alliance Concept, with more than 25 years of experience in designing industrial solutions for leak testing, using Helium and H2 tracer gas (among others), provides stable and reliable systems for your cryostats production.
For this recent problem, we have developed an Helium Leak Detection System based on the so-called global spraying method. Placed in an appropriate testing chamber, the parts to be tested, connected to a pumping system, are vacuumed of their air. The chamber is filled in with pressurized helium. If there is a defect in the parts, the helium will be sucked through these micro-defects due to the vacuum created by the pumping and then detected by the analysis cell.