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| A Method for Optimizing the Test Interval of the Online Measurement Instruments in Process Industry |
| GAO Zhi-yong,YAN Xing-lang,GAO Jian-min,CHEN Fu-min |
| Institute of Manufacturing Systems and Quality Engineering, Xian Jiaotong University, Xian, Shaanxi 710049, China |
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Abstract Considering the drawbacks of the recommended methods in determining the calibration interval of online measurement instruments in process industry, a method for optimizing the calibration interval of this kind of instruments is proposed. Firstly, the availability indices of the instruments are obtained using Markov state-space method. And then the Taguchi quality loss function is introduced into the objective function for accurately determining the optimal calibration interval under constraints of availability and cost. Finally, the proposed method is applied in a process industry, and the results show its effectiveness.
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Received: 19 December 2014
Published: 22 March 2016
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2016, Vol. 37 
