Why rugged connectivity matters in cryogenic conditions
The new white paper "Fischer FiberOptic at cryogenic temperatures" presents the performances of a Fischer FiberOptic Series connector when tested at low temperatures (1.9 Kelvin) at the European Organization for Nuclear Research’s (CERN) SM18 test facility. Fiber optic is rarely used in such extreme conditions.
Authored by Jean-Baptise Gay, Project Manager at Fischer Connectors, the white paper outlines the key factors to be taken into account when using fiber optic sensors in cryogenic environments, e.g. for temperature and strain monitoring in superconducting magnets. These include insertion and return losses and cool-down measurements to determine optical and sealing performance.
The CERN tests demonstrated that the Fischer FiberOptic Series connector operates effectively at cryogenic temperatures, with a minimal effect on insertion and return losses, and on optical and sealing performance. This connectivity solution is therefore robust enough to deliver precision optical performance in cryogenic as well as in other extreme applications.
Liquefied natural gas (LNG) pipelines, where temperatures can drop to approximately -180°C, are another example of an application that depends on robustness to ensure reliable, long-term performance. As demonstrated in the CERN tests, optical fiber can be used to monitor temperatures along the pipeline even in extreme cold.
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