称重式降水传感器测量误差变化研究

doi:10.3976/j.issn.1002-4026.2023.01.016

Abstract

Abstract:

This paper proposes a field calibration method via standard weights accumulation to study the variation trend of the measurement error of the weighing precipitation sensor in an automatic meteorological station. Herein, the field calibration data of sensors from 2019 to 2021 are analyzed. Further, a calculation method is presented for measuring the error deviation degree and its variation trend with respect to the weighing precipitation sensor. The variation model of sensor deviation is obtained on the basis of the historical calibration data. The results show that the measurement error range and observation data quality are controllable. The overall deviation degree of the sensor is 2.1% of the standard value and its increase is 0.1% per year. This study can provide reference for predicting measurement errors and durability of meteorological sensors.

Key words: weighing precipitation sensor, measurement error, field calibration, deviation degree

CLC Number:

P414.9

QIU Shi, YANG Maoshui, SUN Yan, REN Yan, WU Juxiu. Research on measurement error variation of a weighing precipitation sensor[J].Shandong Science, 2023, 36(1): 124-130.

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References 12

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校准点	1	2	3	4	5	6	7
标准值	1.0	10.0	30.0	50.0	81.8	241.1	400.3
平均偏离程度	2.1%	0.9%	0.5%	0.5%	0.4%	0.5%	0.4%

校准点	1	2	3	4	5	6	7
标准值	1.0	10.0	30.0	50.0	81.8	241.1	400.3
偏离程度年变化率	0	0	0	0.10%	0.06%	0.04%	0.06%

Research on measurement error variation of a weighing precipitation sensor

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