Fiber optic temperature sensor using liquid component fiber
Patent 4201446 Issued on May 6, 1980. Estimated Expiration Date: 
October 20, 1998. 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.
October 20, 1998. 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 3051038 3626758 3841731 Optical temperature probe Semiconductor temperature sensor Patent #: 4136566 InventorsAssigneeApplicationNo. 05/953154 filed on 10/20/1978US Classes:385/125, Utilizing nonsolid core or cladding356/44, With sample engaging rod or tube372/34, PARTICULAR TEMPERATURE CONTROL374/161, Change of optical property385/12OPTICAL WAVEGUIDE SENSORExaminersPrimary: Levy, Stuart S.Attorney, Agent or FirmInternational ClassesG02B 6/02 (20060101)G01K 11/00 (20060101) G02B 6/032 (20060101) G01K 11/32 (20060101) AbstractThis invention provides apparatus for remote temperature sensing by means of fiber optics in which the sensor is optical and passive, with no electrical power required at the sensor. The temperature-sensing section of the fiber optic makes use of a transparent liquid as core or cladding and in which the transparent liquid has a temperature-dependent index of refraction. | |
