验证用于溯源雨量计的实验室方法

Q3 Engineering

Acta IMEKO Pub Date : 2024-03-11 DOI:10.21014/actaimeko.v13i1.1322

Catarina Ferreira Simões, Álvaro Silva Ribeiro, Maria Céu Almeida, D. Covas, Luís Dias, Gustavo Coelho

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引用次数: 1

摘要

本研究旨在开发一种实验室方法，用于对降雨量称重仪进行溯源，包括对测量不确定性进行评估。采用的程序与非自动称重仪器类似。采用静态方法实现降水量秤的校准偏差。用于评估测量不确定性的方法以非线性数学模型为基础。采用蒙特卡罗法计算不确定度，并按照传统的《测量不确定度表达指南》（GUM）方法验证估计值。用于计算降雨量的数学模型的输入量的测量不确定性也需要特定的校准程序。结果表明，通常用作气象监测网络和数据建模参考的雨量称重仪可达到的精度水平。

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Validation of a laboratory method for the traceability of a rainfall weighing gauge

This study aims to develop a laboratory method for the traceability of a rainfall weighing gauge, including an evaluation of the measurement uncertainty. The adopted procedure is similar to the one used for the non-automatic weighing instruments. A static approach is followed to achieve the calibration deviation of the precipitation scale. The method used to evaluate the measurement uncertainty is based on a nonlinear mathematical model. The Monte Carlo method is used to calculate uncertainties and validate estimates following the conventional Guide to the Expression of Uncertainty in Measurement (GUM) approach. Measurement uncertainty contributions of input quantities to the mathematical model used to calculate rainfall also require specific calibration procedures. Results show the accuracy level achievable with rainfall weighing gauges commonly used as a reference for meteorological monitoring networks and data modelling.

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来源期刊

Acta IMEKO Engineering-Mechanical Engineering

CiteScore

2.50

自引率

0.00%

发文量

期刊介绍： The main goal of this journal is the enhancement of academic activities of IMEKO and a wider dissemination of scientific output from IMEKO TC events. High-quality papers presented at IMEKO conferences, workshops or congresses are seleted by the event organizers and the authors are invited to publish an enhanced version of their paper in this journal. The journal also publishes scientific articles on measurement and instrumentation not related to an IMEKO event.