초록 ▼

A system for monitoring the temperature of a plurality of turbine blade shroud segments includes indicia carried by each shroud segment. A sensor produces input signals in response to the indicia. A temperature sensor measures the temperature of the sensor producing the input signals. A first circui

A system for monitoring the temperature of a plurality of turbine blade shroud segments includes indicia carried by each shroud segment. A sensor produces input signals in response to the indicia. A temperature sensor measures the temperature of the sensor producing the input signals. A first circuit, responsive to the temperature sensor, corrects the input signals to compensate for the effects of temperature on the sensor. A second circuit determines the temperature of each shroud segment based on the corrected input signals.

대표청구항 ▼

A system for monitoring the temperature of a plurality of turbine blade shroud segments, comprising: indicia means carried by each shroud segment; first sensor means for producing input signals in response to the plurality of shroud segments passing said first sensor means, said input signals having

A system for monitoring the temperature of a plurality of turbine blade shroud segments, comprising: indicia means carried by each shroud segment; first sensor means for producing input signals in response to the plurality of shroud segments passing said first sensor means, said input signals having a variation in magnitude caused by said indicia means; temperature sensor means for measuring the temperature of said first sensor means; first circuit means responsive to said input signals and said temperature sensing means for producing scaled input signals, said scaled input signals being substantially free of the effects of temperature on said first sensor means; and second circuit means responsive to said first circuit means for determining the temperature of each shroud segment based on said scaled input signals. A method for monitoring the temperature of a plurality of turbine blade shroud segments each carrying indicia means, comprising the steps of: sensing eddy currents generated in each shroud segment to produce input signals; measuring the temperature of the means for sensing the eddy currents; correcting the input signals based on the temperature of the means for sensing the eddy currents to compensate for the effects of temperature; determining the difference in magnitude between that portion of the corrected input signals responsive to the shroud segment and the magnitude of that portion of the corrected input signals responsive to the indicia means; and determining the temperature of each shroud segment based on said difference in magnitude.