Fiber optic interferometric thermometer with serially positioned fiber optic sensors
October 3, 2006. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3136310 Integrated indicator system for solvent removal Monitoring arrangement utilizing fiber optics Fiber optic energy sensor and optical demodulation system and methods of making same Multi-channel optical sensing system Optical sensing system Formation tester Refractive index temperature sensor Fiber coupler temperature transducer Optical transmission system InventorAssigneeApplicationNo. 06/915110 filed on 10/03/1986US Classes:250/227.27, With coherent interferrometric light356/478, Multiplexed sensor array356/479, Having a short coherence length source356/480Resonant cavityExaminersPrimary: Nelms, David C.Assistant: Messinger, Michael Attorney, Agent or FirmInternational ClassesG01K 5/00 (20060101)G01K 5/52 (20060101) G01K 1/02 (20060101) G01K 11/00 (20060101) G01K 1/00 (20060101) G01K 11/32 (20060101) AbstractA single fiber optical fiber temperature measuring device is provided for in vivo determination of temperature at a plurality of spaced points. The device includes a fiber optical temperature sensing device having at least first and second optical fiber sensors which optical fiber sensors are positioned at the measurement sites and at least two fiber optical sensors are connected to a divided interferometer associated with an opto-electronic demodulator which has an output signal representing the temperature at the sensed sites. The device also has utility in industrial or chemical temperature sensing applications. | |
