G - Physics – 01 – V
Patent
G - Physics
01
V
G01V 3/12 (2006.01) G01R 31/08 (2006.01) G02B 6/50 (2006.01) H04B 10/08 (2006.01) G01R 31/327 (2006.01)
Patent
CA 2251443
To locate a defective one of filter/voltage arresters (20 1, 20 2, 20 3, 20 4,... 20n-1), each associated with a corresponding one of splice cases (18 1,18 2, 18 3, 18 4,... 18n-1) on a buried fiber-optic cable (10), an operator employs a locating apparatus (24) to detect the presence of an AM signal within a prescribed frequency range that is radiated when the filter/voltage arrester becomes defective. By determining the location along the cable where the AM signal has its greatest strength, the operator can accurately establish the location of the defective filter/voltage arrester, thereby avoiding unnecessary excavation of each splice case.
Eslambolchi Hossein
Huffman John Sinclair
At&t Corp.
Kirby Eades Gale Baker
LandOfFree
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