K R Hearne and S A Nixon 1967 Br. J. Appl. Phys. 18 325 doi:10.1088/0508-3443/18/3/310
A method for measuring transient arc electrode temperatures
K R Hearne and S A Nixon
Show affiliationsA photoelectric pyrometer has been constructed to measure steady and transient temperatures of carbon and graphite arc electrodes. A description of the device and its calibration is given, together with some observations of electrode temperature decays in the range 4000-1300°K following arc interruption. The pyrometer has a response time of 100 μsec and for this application is therefore sufficient to follow most transients faithfully. Also, the spectral sensitivity peak is in the near infra-red at 1.55 μm, rendering it relatively insensitive to light from the plasma. At temperatures above 2500°K the pyrometer has considerable spatial selectivity in that the field of view includes only a very small area of the electrode surface (a disk of diameter 0.007 in.).
- PACS
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07.20.Ka High-temperature instrumentation; pyrometers
85.60.-q Optoelectronic devices
07.57.Kp Bolometers; infrared, submillimeter wave, microwave, and radiowave receivers and detectors
- Subjects
- Dates
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Issue 3 (March 1967)
Received 23 March 1966
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A method for measuring transient arc electrode temperatures
K R Hearne and S A Nixon 1967 Br. J. Appl. Phys. 18 325
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