Mechanical Strain Measurements in High-Field Low-Temperature Superconducting Magnets

Optical fiber sensors based on Fiber Bragg Grating (FBG) technology are used to monitor the mechanical behavior of the magnet's coils from its assembly at room temperature to its powering at cryogenic temperatures. The development of this instrumentation required several years of research and development effort to validate the precision and accuracy of FBGs based measurements in cryogenic conditio...