Long-term stable optical sensor arrangement, especially a...

Details Long-term stable optical sensor arrangement, especially a... Long-term stable optical sensor arrangement, especially a...

2011-07-12

2011-07-12

Porta, David P (Department: 2884)

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

C250S343000, C250S344000, C250S339130, C356S432000, C436S144000, C073S001060, C073S001020, C385S012000

Reexamination Certificate

active

07977638

ABSTRACT:
The present invention relates to optical sensor arrangements, especially sensors of the type that can be used in motor vehicles and which can detect hydrogen in a gaseous measured medium. According to the invention, an optical sensor arrangement has the at least one radiation source (108) for emitting radiation, the at least one measuring transducer which modifies its optical characteristics in response to the presence and/or concentration of at least one analyte in a measured medium (104) and is arranged so that it interacts with at least part of the emitted radiation (110), a first detector unit (112) for capturing a change in radiant intensity due to the changed optical characteristics of the measuring transducer and for outputting a first measuring signal and a light conducting body (106) which is transparent to the emitted radiation, wherein the measuring transducer, which is sensitive to the analyte, is arranged on at least one surface of the light conducting body (106) so that the emitted radiation impinges on a surface of the measuring transducer which faces away from the measured medium (104).

REFERENCES:
patent: 4661320 (1987-04-01), Ito et al.
patent: 4755667 (1988-07-01), Marsoner et al.
patent: 4872759 (1989-10-01), Stich-Baumeister et al.
patent: 5783152 (1998-07-01), Nave
patent: 6006582 (1999-12-01), Bhandari et al.
patent: 6704470 (2004-03-01), Schneider et al.
patent: 6762871 (2004-07-01), Yoshimura
patent: 6843102 (2005-01-01), Shulga et al.
patent: 2002/0148948 (2002-10-01), Hensel
patent: 2004/0061919 (2004-04-01), Tench et al.
patent: 61201141 (1986-09-01), None
patent: 62170828 (1987-07-01), None
patent: 2005-83832 (2005-03-01), None
patent: 2005265590 (2005-09-01), None
patent: WO 00/75634 (2000-12-01), None
Okuhara et al., “Influence of phase transformation in Pd hydride on the recovery characteristics of optical hydrogen sensors,” Bulletin or Material Science, vol. 22, No. 6, Oct. 1999, pp. 999-1001, Indian Academy of Sciences.
Michael A. Butler “Micromirror Optical-Fiber Hydrogen Sensor” Sensor and Actuators B 22 (1994) pp. 155-163 (9pages).
K. Ito and T. Ohgami “Hydrogen Detection Based on Coloration of Anodic Tungsten Oxide Film” Feb. 24, 1992, p. 938-940.

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