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Summary report of fuel rod displacement sensor for LOFT

Technical Report ·
DOI:https://doi.org/10.2172/5553392· OSTI ID:5553392
Qualification tests conducted for a period of 700 hours of each of three displacement measuring (LVDT) sensors confirmed applicability of the design for use in the Loss-of-Fluid-Test (LOFT) reactor. Operationally, the sensor satisfies all specified requirements for LOFT. Even for imposed temperature transients at rates up to 100/sup 0/F/s, the indicated displacement remained within the allowed maximum error band of +-10% of reading. The 0.625-inch O.D. by 5.5-inch long sensor exhibited a linearly related signal output variation for displacement variations of up to 1-inch range. Long term operation at temperatures of 100/sup 0/F to 800/sup 0/F caused no perceptible permanent change of operating characteristics.
Research Organization:
Hanford Engineering Development Lab., Richland, WA (USA)
DOE Contract Number:
EY-76-C-14-2170
OSTI ID:
5553392
Report Number(s):
HEDL-TC-1619
Country of Publication:
United States
Language:
English