The Design and Optimization of Optic Fiber Isolation Amplifiers for EAST Quench Detection System

Abstract

Quench detection signals could associated with several thousands high volts to ground at some fault cases during EAST operation process .Detection system should be withstood 10 kV to ground and isolated with followed control units safety according to the design standards.Optical fiber amplifiers could be isolated high volts with control units and also eliminated noise effectively in long-distant transmission. The following optimization design had been realized to improve their electrical performance greatly .The design principles & the following optimization design of the amplifiers and related experiments results had been covered in the paper. Amplifier is the loss of the protection unit of the top class of ultra-protection, the voltage signal to the cable in a superconducting device voltage is very small, once quench 10KV high-voltage ground, if you do not take the high pressure and isolation of high-handed measures,strong high pressure will bash our class after the second compensation equipment, hardware equipment and acquisition system, power supply circuit, the amplifier performance stability, reliability and lasting protection play a crucial role in the loss of ultra-protection system, it acts as a striker's role, to play the role of ties also signal down-level transmission.