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    Fluidic temperature sensor system
    1.
    发明授权
    Fluidic temperature sensor system 失效
    流体温度传感器系统

    公开(公告)号：US3566689A

    公开(公告)日：1971-03-02

    申请号：US3566689D

    申请日：1968-10-17

    Applicant: GEN ELECTRIC

    Inventor： RINGWALL CARL G ,  KELLEY LONNY R

    IPC: F15C1/00 ,  G01K11/22 ,  G01K1/16 ,  G01K11/24

    CPC classification number: F15C1/005 ,  G01K11/22 ,  Y10T137/2065 ,  Y10T137/2142

    Abstract: A FLUIDIC TEMPERATURE SENSING SYSTEM ADAPTED FOR MEASURING AN AVERAGE TEMPERATRE IN A REATIVELY LARGE REGION UTILIZES THE PHASE SHIFT CHARACTERISTIC OF A LONG FLUID TRANSMISSION LINE. A TEMPERATURE SENSING TUBE AND PREHEATER TUBE ARE ARRANGED IN A REGION WHOSE TEMPERATURE IS TO BE MEASURED AND A VARIABLY PRESSURIED FLUID IS CIRCULATED THROUGH THE SENSOR TUBE. THE FLUID AT THE INPUT END OF THE SENSOR TUBE IS EXCITED BY A CONSTANT FREQUENCY FLUIDIC OSCILLATOR TO PROVIDE THE PRESSURE VARIATION, AND A FLUIDIC PHASE DISCRIMINATOR IS CONNECTED ACROSS THE TUBE FOR DETECTING A PHASE SHIFT OF THE PRESSURE WAVE IN ITS TRANSMISSION THROUGH THE SENSOR TUBE. THE PHASE SHIFT ACROSS THE SENSOR TUBE OF FIXED LENGTH IS PROPORTIONAL TO THE ABSOLUTE TEMPERATURE OF THE FLUID WITHIN THE TUBE, AND IF THE TUBE IS EXPOSED TO VARYING TEMPERATURE THE PHASE SHIFT REPRESENTS AN AVERAGE TEMPERATURE.

    Fluidic temperature sensor
    2.
    发明授权
    Fluidic temperature sensor 失效
    流体温度传感器

    公开(公告)号：US3618385A

    公开(公告)日：1971-11-09

    申请号：US3618385D

    申请日：1966-06-30

    Applicant: GEN ELECTRIC

    Inventor： KELLEY LONNY R ,  BROWN FORBES T

    IPC: G01K11/22

    CPC classification number: G01K11/22 ,  Y10T137/2065

    Abstract: THE DISCLOSURE SHOWS A TEMPERATURE SENSOR FOR OBTAINING A MEASUREMENT OF THE TEMPERATURE OF A HOT GAS STREAM ENTERING THE TURBINE OF A GAS TURBINE ENGINE. THE SENSOR COMPRISES A POWER NOZZLE WHICH IS CONNECTED TO THE HOT GAS STREAN OF THE ENGINE. THE FLUID STREAM DISCHARGED ROM THE NOZZLE IMPINGES ON A V-SHAPED DIVIDER SPACED OUTWARDLY THEREFROM. THE DIVIDER CAUSES THE POWER STREAM TO ALTERNATELY PRESSURIZE ELONGATED CHAMBERS ON OPPOSITE SIDES THEREOF. THESE CHAMBERS ARE VENTED BY VENTS HAVING A COMBINED AREA APROXIMATELY ONE-HALF THE AREA OF THE NOZZLE. AN OUTPUT PRESSURE SIGNAL IS DERIVED FROM ONE OF THE CHAMBERS. THE RATE AT WHICH THIS PRESSURE SIGNAL VARIES GIVES AN ACCURATE MEASUREMENT OF THE TEMPERATURE OF THE HOT GAS STREAM IN THE TURBINE ENGINE. A GRANSDUCER IS EMPLOYED TO PROVIDE AN ANALOG READOUT OF THE MEASUREMENT.

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