Volume 41 Issue 8
Sep.  2012
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Article Navigation >  Infrared and Laser Engineering  > 2012  >  41(8): 2107-2111

Yang Yuanhong, Duan Weiqian, Gao Lijuan. Field calibration method for the reflection type polarization maintain optic fiber temperature sensor[J]. Infrared and Laser Engineering, 2012, 41(8): 2107-2111.
Citation: Yang Yuanhong, Duan Weiqian, Gao Lijuan. Field calibration method for the reflection type polarization maintain optic fiber temperature sensor[J]. Infrared and Laser Engineering, 2012, 41(8): 2107-2111.
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Field calibration method for the reflection type polarization maintain optic fiber temperature sensor

  • 1.

    Department of Opto-electonics,School of Instrument Science and Opto-electronics Engineering,Beihang University,100191 Beijing,China

  • Areflectiontypepolarizationmaintainopticalfibertemperaturesensorwasdesigned.The operationprinciplewasintroducedandthesensingequationwasgiven.Analysisindicatedthatthe propagationlossvarietywasthemainfactorwhichmadesensingequationparameterschange.So,inthe applicationfieldwheretheopticalpathstructureofsensormightbere-assembled,theparameters calibrationwasnecessary.Basedonthecharacteristicandtherelationofsensoropticalsectionoutput signalandthesensingequationparameters,thepropagationlosscouldbeseparatedfromthesensor initializationparametersandasimpleandpracticalfieldcalibrationmethod,withwhichthewholesensing equationparameterscouldbecalibratedwhenthetemperatureatthesensorprobewasgiven,was proposedandthecalculationequationwasestablished.Anexperimentalsensorsystemwasbuiltandthe calibrationexperimentsweremadebychangingthepropagationloss.Thedateobtainedwereanalyzed andcomparedwithpolynomialfittingandmodelcalculation.Theresultprovesthefieldcalibration technologyandthesensingtemperatureprecisioncanbebetterthanupanddown0.5℃beforeandaftercalibration.
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通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

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Field calibration method for the reflection type polarization maintain optic fiber temperature sensor

  • 1. Department of Opto-electonics,School of Instrument Science and Opto-electronics Engineering,Beihang University,100191 Beijing,China

Abstract: Areflectiontypepolarizationmaintainopticalfibertemperaturesensorwasdesigned.The operationprinciplewasintroducedandthesensingequationwasgiven.Analysisindicatedthatthe propagationlossvarietywasthemainfactorwhichmadesensingequationparameterschange.So,inthe applicationfieldwheretheopticalpathstructureofsensormightbere-assembled,theparameters calibrationwasnecessary.Basedonthecharacteristicandtherelationofsensoropticalsectionoutput signalandthesensingequationparameters,thepropagationlosscouldbeseparatedfromthesensor initializationparametersandasimpleandpracticalfieldcalibrationmethod,withwhichthewholesensing equationparameterscouldbecalibratedwhenthetemperatureatthesensorprobewasgiven,was proposedandthecalculationequationwasestablished.Anexperimentalsensorsystemwasbuiltandthe calibrationexperimentsweremadebychangingthepropagationloss.Thedateobtainedwereanalyzed andcomparedwithpolynomialfittingandmodelcalculation.Theresultprovesthefieldcalibration technologyandthesensingtemperatureprecisioncanbebetterthanupanddown0.5℃beforeandaftercalibration.

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