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

Conference · Fri Nov 01 04:00:00 EST 1991

DOI:https://doi.org/10.1109/FUSION.1991.218715· OSTI ID:10114295

Allen, J C; Callis, R W; Cary, W P; Harris, T E; Nerem, A

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
• Country of Publication: United States
• Language: English

Related Subjects

665412
70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700460
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANALOG-TO-DIGITAL CONVERTERS
COMPUTERIZED CONTROL SYSTEMS
DOUBLET-3 DEVICE
ECR HEATING
FUELS
HEATING AND FUELING SYSTEMS
MICROWAVE AMPLIFIERS
MODIFICATIONS
MONITORING
SUPERCONDUCTING DEVICES
SUPERCONDUCTING MAGNETS