Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1988-04-05
1989-06-27
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
350 9610, H01J 516, H01J 4014
Patent
active
048432342
ABSTRACT:
An apparatus and method for measuring the tip location of a consumable electrode in an electric arc furnace employing an optical fiber with high temperature capability and an optical time domain reflectometer.
REFERENCES:
patent: 4289398 (1981-09-01), Robichaud
patent: 4407561 (1988-10-01), Wysocki
patent: 4592932 (1986-06-01), Biswas et al.
patent: 4621896 (1986-11-01), Logakos et al.
patent: 4733933 (1988-03-01), Pikulski
Berthold John W.
Carter H. Randy
Edwards Robert J.
Kalka Daniel S.
Matas Vytas R.
Nelms David C.
Oen William L.
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