量測系統不確定度之評估－以電阻校正系統為例

Uncertainty Evaluation of Measurement Systems - A Case Study of Resistance Calibration System

程中慶(Chung-Ching Cheng)

指導教授 ： 楊康宏

中原大學/電機資訊學院/工業與系統工程研究所/碩士(2014年)

https://doi.org/10.6840/cycu201400488

摘要

本研究主要是以國際標準組織(International Organization for Standardization, ISO)所修訂之「量測不確定度表示方式指引(Guide to the Expression of Uncertainty in Measurement, GUM)」為依據，並加入NASA的「Measurement Uncertainty Analysis Principles and Methods」來做評估分析，使用經中華民國國家度量衡標準實驗室(NML)定期追溯校正之多功能校正器 (FLUKE 5700A)與自校型多功能數位電表(WAVETEK 1281)之直流電阻為標準器，並依照直流電阻重複性校正的標準作業程序，針對上述的兩種儀器設備進行各種不確定度評估之計算。
在評估過程中，根據ISO GUM 之量測不確定度八大評估步驟，並加入特性要因圖以確保相關的不確定度因素免於遺漏，針對電量校正實驗室執行電阻校正評估可能產生的A 類評估標準不確定度與B 類評估標準不確定度進行分析，使用統計分析方法歸納數據，將A 類標準不確定度降至最小，達成有效的執行量測能力。加入NASA的「Measurement Uncertainty Analysis Principles and Methods」來做評估分析，期能與ISO GUM 之量測不確定度比較，結果顯示Pre-GUM的不確定度低於ISO GUM的不確定度。因此本研究除了藉由ISO GUM 系統量測不確定度評估方式之外，並使用Pre-GUM系統量測不確定度評估方式，供業界做為參考與研究的另一種選擇。

關鍵字

不確定度

並列摘要

The study is based on ISO (International Organization for Standardization, ISO) as amended by the ‘degree of measurement uncertainty representation guidelines’ (Guide to the Expression of Uncertainty in Measurement, GUM) as the basis, and added NASA's ‘Measurement Uncertainty Analysis Principles and Methods’ to do assessment analysis on DC resistance with retroactive periodic calibration of Multi-Function Calibrator (FLUKE 5700A) and Selfcal Digital Multimeters (WAVETEK 1281) by National Measurement Laboratory R.O.C (NML) . According to the DC resistance repetitive calibration standard operating procedures to conduct a variety of computing degree of uncertainty assessment.
Assessment to determine the degree of the eight steps in accordance with ISO GUM of measurement uncertainty and added Cause & Effect Diagram to ensure that the relevant factors of uncertainty from omission. Using statistical analysis of data summarized, so that Class A degree of uncertainty to a minimum standard, to achieve effective execution measurement capabilities. Join NASA's "Measurement Uncertainty Analysis Principles and Methods" do assessment analysis, hoping to determine the degree of measurement uncertainty compared with the ISO GUM, the results show that Pre-GUM uncertainty is less than the ISO GUM uncertainty. This study provides ISO GUM system measurement uncertainty assessment methods beyond, and to provide Pre-GUM system measurement uncertainty assessment methods in order to provide an alternative to the industry as a reference and research.

並列關鍵字

Uncertainty

參考文獻

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