Evaluation of measurement accuracy and analysis of error sources in pointer-type pressure gauges
In order to determine the possible errors and their sources in the daily use of pointer-type pressure gauges and improve the accuracy of measurement results,the measurement system analysis(MSA)combined with orthogonal experimental design was applied to the precision evaluation and error analysis of pressure gauges.By analyzing the repeatability and reproducibility of the measurement data,it was determined that the system has certain error.The method of orthogonal experimental design was used to further investigate the sources of error.By changing the measurement personnel,horizontal reading angle and vertical reading angle,the results showed that the measurement personnel had a greater impact on the measurement results,followed by the horizontal reading angle and the vertical reading angle with the least impact.The improvement ideas and optimization measures to reduce the measurement error were put forward about the measuring method and installation position of the pressure gauge.According to the error sources of the pressure gauge,it is suggested that the operation process should be standardized and the position of the pressure gauge should be correctly installed to reduce the measurement error.
pointer-type pressure gaugeserror analysismeasurement system analysis
万方数据
维普
