Optical transducer and method for the simultaneous...

Details Optical transducer and method for the simultaneous... Optical transducer and method for the simultaneous...

2007-12-11

2007-12-11

Connelly-Cushwa, Michelle (Department: 2874)

Optical waveguides

Optical waveguide sensor

Including physical deformation or movement of waveguide

C385S037000

Reexamination Certificate

active

11191243

ABSTRACT:
An optical transducer100, 200and method for the simultaneous measurement of downhole pressure and temperature in a single- or multi-point configuration including a body10a/10bwith an elastic membrane50onto which at least one Bragg grating60a/60bis attached, and at least an additional Bragg grating60b/60acontained on the same optical fiber30. The elastic membrane50conveys strain proportional to the pressure and temperature conditions to which is submitted said transducer to at least one Bragg grating60a/60b, the portion of light not reflected by the Bragg gratings60a, 60bcontinues along the remaining of the optical fiber30.

REFERENCES:
patent: 6016702 (2000-01-01), Maron
patent: 6276215 (2001-08-01), Berg
patent: 6278811 (2001-08-01), Hay et al.
patent: 6439055 (2002-08-01), Maron et al.
patent: 6519388 (2003-02-01), Fernald et al.
patent: 6668656 (2003-12-01), Fernald et al.
patent: 6888972 (2005-05-01), Berg et al.
patent: 6898339 (2005-05-01), Shah et al.
patent: 6913079 (2005-07-01), Tubel

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