Research on the calibration method and evaluation of uncertainty in the instrument for radiosonde on JKZ3-1
After changing the model,the measuring instrument for radiosonde on Jkz3-1 produced by Nanjing Bridge Machinery Co.,LTD,is mainly used for L band high-altitude meteorological exploration work in meteorological data.At present,there is no verification regulation for calibration.In order to standardize the calibration work and ensure the the reliability of measurement data,we need to research on the calibration method and analyze the measured results.Firstly,The instrument is measured repeatedly at cal-ibration points.Then,each component is analyzed by non-statistical method and the specific value of uncertain component is calcu-lated by using a reasonable probability distribution.Finally,the expanded uncertainty is obtained with determining inclusion factor.The results show that in addition to the uncertainty introduced by repetition,the Grade I standard platinum resistance thermometer,the temperature measuring bridge,the non-uniformity of temperature trough,the resolution of an instrument will mainly affect the un-certainty of measurement results in temperature.The standard digital barometer,the automatic pressure calibrator CPC6000,the reso-lution of an instrument will mainly affect the uncertainty of measurement results in atmospheric pressure.
the measuring instrument for radiosondeindication errorcalibrationmeasurement uncertainty
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