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Patent Searching and Data


Title:
OPTICS SENSOR STRUCTURE FOR DETECTING WATE OR OIL LEAKAGE INSIDE A CONSERVATOR HAVING HAVING A BLADDER OR MEMBRANE
Document Type and Number:
WIPO Patent Application WO/2013/009507
Kind Code:
A3
Abstract:
Optical sensor structure senses the presence of liquid in a sealed conservator tank. The sensor structure includes a sensor head having a body with first and second opposing ends, a plurality of perforations through the body and spaced between the first and second ends, and a mirror disposed at the second end. The perforations are constructed and arranged to receive and hold fluid therein. The sensor head is constructed and arranged to rest on a surface of a bladder. The sensor structure includes a light source, a first fiber optic cable between the light source and the first end of the body, a light detector, and a second fiber optic cable between the light detector and the first end of the body. The amount of light received by the light detector is reduced when liquid, instead of air, is in at least some of the perforations in the body.

Inventors:
CHEIM LUIZ A V (US)
Application Number:
PCT/US2012/045183
Publication Date:
April 25, 2013
Filing Date:
July 02, 2012
Export Citation:
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Assignee:
ABB TECHNOLOGY AG (CH)
CHEIM LUIZ A V (US)
International Classes:
G01M3/38
Domestic Patent References:
WO2011079357A12011-07-07
Foreign References:
JP2008249617A2008-10-16
GB1051462A1966-12-14
JPS6040934A1985-03-04
Attorney, Agent or Firm:
STEMBERGER, Edward, J. et al. (2000 M Street N.W.,Suite 70, Washington DC, US)
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