Upgradation and testing of signal conditioning electronics for SST-1 magnets

The magnet system of the SST-1 tokamak at the Institute for Plasma Research, Gandhinagar, India, consists of sixteen Toroidal field and nine poloidal field superconducting coils together with a pair of resistive PF coils, an air core ohmic transformer and a pair of vertical field coils for its various magnetic field requirements. Various cryogenic compatible sensors and voltage taps are installed in those magnets for its monitoring, operation, protection, and control during different machine operational scenarios like cryogenic cool down, Magnet current charging cycles including ramp up, flat top, plasma breakdown, dumping/ramp down and Cryogenic warm up. This poster gives overview of the Magnet signal conditioning electronics hardware, testing of signal conditioning electronics with VME based data acquisition hardware and the measures taken to counter combined errors due to electronics and VME hardware after long time running experience in SST-1 cryogenic cool down campaigns