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Accurate instrumentation is essential for maintaining efficient and reliable industrial process control. However, the performance of transmitters and valve positioners can deteriorate over time due to wear, environmental influences, and signal drift. This study evaluates the effect of calibration on the accuracy of industrial transmitters and the operational reliability of valve positioners. Calibration was performed using traceable reference standards, and instrument performance was assessed based on measurement error, repeatability, linearity, hysteresis, and valve positioning accuracy.
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Chukwuemeka et al. (2026) studied this question.
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