Temperature sensor and extensometer for electrical power cables

Details Temperature sensor and extensometer for electrical power cables Temperature sensor and extensometer for electrical power cables

2009-07-13

2010-12-07

Caputo, Lisa M (Department: 2855)

Thermal measuring and testing

Temperature measurement

By a vibratory effect

C374S141000, C374S117000, C374S045000, C374S055000, C374S006000, C702S130000, C702S159000, C367S127000, C367S129000, C367S099000, C073S001810, C073S001820, C073S628000, C073S597000, C073S632000

Reexamination Certificate

active

07845847

ABSTRACT:
A thermometer and extensometer for cables and conductors is described. The travel time of one or more acoustic signals along a conductor is used to determine the temperature along the conductor and the length of the conductor. The acoustic frequency is selected to minimize temporal dispersion of the propagating acoustic energy. The technique can be used to measure the temperature of the windings in a transformer or other electrical apparatus.

REFERENCES:
patent: 4035762 (1977-07-01), Chamuel
patent: 5044769 (1991-09-01), Kulczyk et al.

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