Thermocouples

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Revision as of 19:09, 15 February 2019 by Phughes (talk | contribs) (added details of neutral beam tank getter and in-vessel center stack thermocouples)
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Ex-Vessel

Coils

Center Stack

In-Vessel

Shells

Neutral Beam Tank Getter

Mounted to the back (LTX side) of the neutral beam tank baffle to measure getter temperature. Roughly centered in port A-B (φ=22.5°).

Thermocouple Feedthrough
ID
Location
Port
Mil-C Connector
TC Connector
D1
Bottom (1.75" up)
Section B-C
Left 2.75" CF
Right
D2
Middle (5.0" up)
Section B-C
Left 2.75" CF
Bottom
D3
Upper (8.5" up)
Section B-C
Left 2.75" CF
Left

Center Stack

Mounted under the heat shield in section P-A (φ=0°).

Thermocouple Feedthrough
ID
Location
Port
Mil-C Connector
TC Connector
CS1
Bottom
Section B-C
Left 2.75" CF
Top
CS2
Lower
Section B-C
Right 2.75" CF
Right
CS3
Middle
Section B-C
Right 2.75" CF
Bottom
CS4
Upper
Section B-C
Right 2.75" CF
Left
CS5
Top
Section B-C
Right 2.75" CF
Top

Acquisition

64 total channels, 32 on back of shells (8 on each), rest on centerstack and coils. Shell thermocouple feedthrough are on top and bottom one bay on either side of heater feedthroughs. All connections go to breakout boxes on cable trays north and south of the vessel, then to digitizer in L209 racks. Data acquired on LTX-β in control room via LabView interface, which can display, plot, and store the data.

Related Pages

Diagnostics

Magnetics (Local): Reentrant array | Toroidal array | Saddle coils | Shell eddy sensors
Magnetics (Areal): Poloidal flux loops | Loop voltage | Diamagnetic loop | IP Rogowski
Spectroscopy: Thomson scattering | ChERS | X-ray spectroscopy | Spectrometry | Vacuum UV spectroscopy
Microwaves: Reflectometry | Interferometry
Physical Probes: HFS edge probes | LFS SOL probes | RFEA
Operational Diagnostics: Ion gauges | Coil current monitors | Thermocouples | RTDs