Analysis of error data of ultrasonic flow meter online experiment comparison

Abstract: The online experiment comparison error data analysis information of ultrasonic flow meter is provided by excellent flow meter and flow meter manufacturers. At present, with the acceleration of industrialization and urbanization! The demand for urban residential water and industrial water has greatly increased, followed by the continuous expansion and continuation of pipelines, and the requirements for water metering have also been put on the agenda. On the main line, basic. More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following is the details of the online experiment comparison error data analysis article of ultrasonic flowmeter. At present, with the acceleration of industrialization and urbanization! The demand for urban residential water and industrial water has greatly increased, followed by the continuous expansion and continuation of pipelines, and the requirements for water metering have also been put on the agenda. On the main line, the electromagnetic flowmeter is basically used as the measurement basis, and in the section of the branch line entering the household, the measurement is performed by a water meter. The water meter can be tested once a year. It is nothing more than an occasional interruption of the water supply, which will not cause a major impact. However, the electromagnetic flowmeter installed on the main line cannot be disassembled every time it is tested, because once the water supply is interrupted, it will cause many inconveniences. It is for this reason that the most popular method for calibrating measuring instruments such as online electromagnetic flowmeters is to connect an ultrasonic flowmeter in series, and judge the accuracy and reliability of the online instrumentation through the readings of the ultrasonic flowmeter. Faced with the error between the ultrasonic flowmeter and the online instrument, how should we correctly analyze the reliability of the online instrument? This premise: In its calibration cycle, the ultrasonic flowmeter is generally within 12 months from the last third-party calibration, which is considered to be within the calibration cycle. Generally speaking, in my personal experience, if the error between the ultrasonic flowmeter and the online flowmeter is±Within 2.0%, the accuracy of the on-line instrument can be considered acceptable. If it exceeds this range, it is considered that the online instrument has a certain deviation. The on-line instrument needs to be corrected. Because the national standard for the accuracy of ultrasonic flowmeters is recognized as±1.0% (although there are currently ultrasonic flowmeters with±0.5%), if the accuracy of the on-site online measuring instrument±0.5% (also has an accuracy of±0.2%), this error is allowed to±1.5%, plus human factors, so the uncertainty is±2.0% is more appropriate. So how to minimize the impact of human factors? First of all, an ultrasonic flowmeter with high quality must be selected. As a calibration instrument, its accuracy, repeatability and stability must have certain requirements. In the field measurement, the scientific measurement method is to take the existing online instrument as the center, and select two measurement points in the two equidistant measurements of the existing instrument. Each measurement point is at 1 point and 2 points of its section , each test is performed once, and then the accumulated data of 4 times before and after is divided by 4, and the obtained data is compared with the online instrument. At this time, the comparison of data is relatively reliable. The above views only represent personal views, and I look forward to peer exchanges and guidance (), thank you very much! The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'Data Analysis of Online Experiment Comparison Error of Ultrasonic Flow Meter'
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