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首页> 外文会议>2014 Third Mediterranean Photonics Conference >Fiber Bragg Grating sensors based monitoring system for superconducting accelerator magnets
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Fiber Bragg Grating sensors based monitoring system for superconducting accelerator magnets

机译：基于光纤布拉格光栅传感器的超导加速器磁体监控系统

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摘要

New generation of accelerator magnets for high energy applications currently designed, manufactured and tested at the European Organization for Nuclear Research (CERN) require the implementation of precise cryogenic sensors with long-term robustness and reliability able to withstand cryogenic temperature and to monitor the mechanical stresses affecting the winding during all the stages of his service life, assembly, cool down and powering. Monitoring the mechanical behavior of the magnet from assembly to operation is a critical task which aims to assure the integrity of the magnet and to safely handle the coils made of new brittle material. This contribution deals with the first successful embedding of Fiber Bragg Grating sensors in a subscale Nb3Sn dipole magnet in order to monitor the strain developed in the coil during the cool down to 1.9 K, the powering up to 15.8 kA and the warm up, offering new perspectives for the development of a complementary sensing technology based on fiber optic sensors.
机译：目前，由欧洲核研究组织（CERN）设计，制造和测试的用于高能应用的新一代加速器磁体需要实现具有长期耐用性和可靠性的精密低温传感器，以承受低温并监测机械应力。在使用寿命，组装，冷却和供电的所有阶段都会影响绕组。从组装到运行的整个过程中，监控磁体的机械性能是一项至关重要的任务，旨在确保磁体的完整性并安全地处理由新的脆性材料制成的线圈。该成果涉及将光纤布拉格光栅传感器首次成功嵌入亚标Nb3Sn偶极磁体中，以便监视在冷却至1.9 K，供电至15.8 kA和预热期间线圈中产生的应变，从而提供了新的解决方案。基于光纤传感器的互补传感技术的发展前景。

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