FPGAbased Quench Detection System for Super-FRS Super ferric Dipole Prototyp

Key words: 
• quench detection /
• FPGA /
• data acquisition /
• quench protection

Abstract:  The quench detection system for SuperFRS superferric dipole prototype magnet of FAIR has been designed and built. The balance bridge was used to detect quench signal. In order to avoid blind zone of quench detection， two independent bridges were used. NI PXI7830R FPGA was used to implement filter to quench signal and algorithm of quench decision and to produce quench trigger signal. Presample technique was used in quench data acquisition. The data before and after quench could be recorded for analysis later. The test result indicated that the quench of the dipole’s superconducting coil could be reliably detected by the quench detection module.