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Comparison and discussion on rainfall sensor verification and calibration devices

Liu Jun;Zhao Qingyi;Wei Yunfang;Yang Zhiwei;Jilin Meteorological Instrument Metering and Calibration Station;Changchun Meteorological Instrument Research Institute;  
On the premise of ensuring calibration quality,for the sake of saving the cost,the contrast experiment is carried out among 4rainfall sensor verification devices owned by our company.The errors in calibration quality of rainfall senor measured by different devices are analyzed.The results show that the cost performance of ZBC5rainfall verification device,JJS1tipping bucket rainfall sensor calibration instrument, JJS2rainfall calibrator and JJS3rainfall detection system are all relatively high,which are suitable for being the verification device of the rainfall sensor.And the JJS1tipping bucket rainfall sensor calibration instrument and JJS2rainfall calibrator are used for the field calibration.The ZBC5rainfall verification device and JJS3rainfall detection system are applied in indoor verification and calibration.
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