An FPGA-Based Quench Detection and Continuous Logging System for Testing Superconducting Magnets
2013
A quench detection system for testing
superconducting magnetswith two concurrent data logging modes was developed at Fermilab. This system consists of two functional components: An active quench detection component, which is based on a reconfigurable input/output module with a field-programmable gate array, and a
data loggercomponent based on a set of simultaneous sampling
data loggermodules. The
data loggercomponent has two concurrent modes of operation: A fast logger mode that is triggered to capture a user specified window of data at rates up to 10 kHz, and a continuous
data loggermode that can log data at rates between 0.1 and 100 Hz continuously using the same
data loggers. The system was designed with a modular structure using commercially available hardware along with in-house developed programmable
isolation amplifiers. This approach makes the new system easily scalable for multiple magnets or magnets with more complex coil and lead voltage tap configurations. The new system has been used for testing the MICE Spectrometer Solenoid. A detailed description of the system along with test results is presented in this paper.
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