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US 12,704,428 B2Granted
Sensors for measuring pressure and temperature
AssigneeSimmonds Precision Products, Inc.
InventorsKristen Brosnan, Peter J. Carini
Life of this patent
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Abstract
A Fabry-Pérot sensor assembly includes an optical element defining a Fabry-Pérot optical cavity therein. A sensor ferrule is affixed to the optical element. The sensor ferrule is configured to physically connect to an optical fiber, aligning the optical fiber optically with the cavity. The optical element includes a LaGd doped hafnium or zirconium oxide ceramic or Nd:YAG ceramic or single crystals.
Claims19
A Fabry-Perot sensor assembly comprising:
- an optical element defining a Fabry-Perot optical cavity therein, wherein the optical element comprises:
- a first optical member comprising an endplate with an at least partially mirrored surface;
- and
- a second optical member connected directly to the first optical member and axially adjacent to the first optical member with respect to a longitudinal axis of the Fabry-Perot sensor assembly;
- and
- a sensor ferrule affixed to the second optical member, wherein the sensor ferrule defines a bore extending along the longitudinal axis to the second optical element;
- wherein at least one of the first and second optical members is formed from a zirconate ceramic comprising at least one rare earth metal, or is formed from a hafnate ceramic comprising the at least one rare earth metal.
4 more elements
A Fabry-Perot sensor assembly comprising:
- an optical element defining a Fabry-Perot optical cavity therein, wherein the optical element comprises:
- a first optical member comprising an endplate with an at least partially mirrored surface;
- and
- a second optical member connected directly to the first optical member and axially adjacent to the first optical member with respect to a longitudinal axis of the Fabry-Perot sensor;
- and
- a sensor ferrule affixed to the optical element, wherein the sensor ferrule is configured to physically connect to an optical fiber, optically aligning and spacing the optical fiber with the optical cavity, and wherein at least one of the first optical member and the second optical member is formed from a yttrium aluminum garnet (YAG) ceramic doped with a rare earth metal or is formed from a YAG single crystal doped with the rare earth metal.
3 more elements
Dependencies are inferred from the claim text.