The use of fiber optics for remote temperature measurement in fission product release tests
A system for remote temperature measurement in a highly hostile environment was developed. Fiber optic cables were used to conduct light signals from a high temperature induction furnace inside a hot cell to automatic two-color pyrometers mounted outside the cell. This system was calibrated with manually operated, disappearing-filament optical pyrometers and high temperature thermocouples. This technique has provided reliable temperature data in several fission product release tests of highly irradiated reactor fuel at temperatures up to 2425/degree/C. Compared to the previously used temperature measurement method, this technique afforded the ability to obtain more data from a smaller investment of assembly time and hot cell space, and it also increased safety through a reduction in radiation hazard to personnel and instrumentation. 3 refs., 12 figs.
- Research Organization:
- Nuclear Regulatory Commission, Washington, DC (USA). Div. of Systems Research; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 6193626
- Report Number(s):
- NUREG/CR-4721; ORNL/TM-10366; ON: TI89010768
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
47 OTHER INSTRUMENTATION
FIBER OPTICS
DATA TRANSMISSION
FISSION PRODUCT RELEASE
TEMPERATURE MEASUREMENT
CABLES
CALIBRATION
EXPERIMENTAL DATA
HOT CELLS
OPTICAL PYROMETERS
PERFORMANCE
REACTOR FUELING
REACTOR INSTRUMENTATION
REACTOR SAFETY
TESTING
THERMOCOUPLES
VERY HIGH TEMPERATURE
COMMUNICATIONS
DATA
EQUIPMENT
INFORMATION
LABORATORY EQUIPMENT
MEASURING INSTRUMENTS
NUMERICAL DATA
PYROMETERS
SAFETY
220502* - Nuclear Reactor Technology- Environmental Aspects- Radioactive Effluents
440300 - Miscellaneous Instruments- (-1989)
220900 - Nuclear Reactor Technology- Reactor Safety