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Title: Eight channel - 16 bit, bidirectional analog to digital monitoring and control system

Conference ·
OSTI ID:10114295

The DIII-D tokamak facility is currently upgrading its electron cyclotron resonance heating (ECH) system. The new system is based on 110 GHz gyrotrons developed by Varian. As part of this upgrade, the superconducting magnet power supplies were required to be remotely controlled and monitored accurately. The 110 GHz gyrotron superconducting magnet has eight coils, that are energized by current regulating power supplies. An analog to digital (A/D) system was designed to allow remote coil current monitoring and power supply programming. The A/D system is an eight channel multiplexed, 16 bit, bidirectional, fiber optically linked, analog to digital telemetry system. Design concerns and trade-offs will be discussed as will the results of in system use.

Research Organization:
General Atomics, San Diego, CA (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
AC03-89ER51114
OSTI ID:
10114295
Report Number(s):
GA-A-20604; CONF-910968-61; ON: DE92005445
Resource Relation:
Conference: 14. IEEE symposium on fusion engineering,San Diego, CA (United States),30 Sep - 3 Oct 1991; Other Information: PBD: Nov 1991
Country of Publication:
United States
Language:
English