TRD temperature sensor and electronics
October 18, 2010. 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 Re31832 Method and apparatus for monitoring and/or correcting of a physical characteristic Fiber optic temperature sensor Circuit for processing a digital signal Optical temperature measurement technique utilizing phosphors Temperature-sensitive optrode Multiplexing and calibration techniques for optical signal measuring instruments Optical temperature measurement techniques utilizing phosphors Optical temperature measurement techniques Temperature measuring apparatus Inventors
ApplicationNo. 599814 filed on 10/18/1990US Classes:374/161, Change of optical property250/227.21, With light chopping or modulation250/458.1, LUMINOPHOR IRRADIATION324/702, With radiant energy effects374/131, With radiation conducting element702/130Temperature measuring systemExaminersPrimary: Yasich, Daniel M.Attorney, Agent or FirmForeign Patent References
International ClassesG01K 011/20G01J 005/10 AbstractA temperature sensing system has a signal means which provides a signal representative of a temperature responsive luminescence, where the luminescence has a characteristic time-rate-of-decay. A means for comparison is connected to the signal means and samples the signal during two time intervals, the first interval overlapping the second. The averages of the samples are compared to provide a difference signal representative of the difference between the two measured averages. Control means coupled to the comparison means provide an output representing the temperature as a function of the time-rate-of-decay, by adjusting the overlapping intervals so that the difference signal converges to a preselected limit.Other References
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