In-situ calibration of local power measuring devices for nuclear

Details In-situ calibration of local power measuring devices for nuclear In-situ calibration of local power measuring devices for nuclear

1981-01-30

1984-04-03

Cangialosi, Sal

Induced nuclear reactions: processes, systems, and elements

Testing, sensing, measuring, or detecting a fission reactor...

Temperature or pressure measurement

374 1, G21C 1700

Patent

active

044407165

ABSTRACT:
An electrical heater cable is positioned within an assembly of multiple junction thermocouple cables associated with the elongated gamma heated body of a local power measuring unit to electrically heat the body from an external source during a calibration period. The signal outputs of the thermocouples are measured during the calibration period for steady state analysis of the signal response to changes in heating rate produced either by additional electrical heating, by abrupt termination of electrical heating or by supply of sinusoidally varied heating current to the heater cable.

REFERENCES:
patent: 3599474 (1971-08-01), Brown et al.
patent: 3632985 (1972-01-01), Bare et al.
patent: 4031355 (1977-06-01), Leonik, Jr.
patent: 4298430 (1981-11-01), Rolstad et al.
patent: 4313792 (1982-02-01), Smith
Gamma Thermometer Developments, for LWR, Leyse et al. (10/78), pp. 1-10.

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