Study on the relationship between the size change and the measured flow value of the Parshall flumes open channel weir tank flowmeter |
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| K. F. Zhang, S. Zhang, B. Gao, W. H. Zhou, L. S. Yang |
- Abstract:
- At present, as an important measuring instrument for measuring sewage discharge, the principle of open channel flowmeter is the functional relationship between liquid level and flow. By measuring the liquid level of water flow in the tank, and then according to the flow value of the relationship between liquid level and flow in the corresponding Parshall flume, therefore, the accuracy of Parshall flume size is closely related to its measurement accuracy. In this paper, we introduce a kind of adjustable size of Parshall flume. Through experiments, we find out the relationship between the flow rate and the standard flow rate under different sizes, and then use the method of multiple regression to fit the correction equation.
- Keywords:
- Parshall flumes; error correction; measured flow value
- Download:
- IMEKO-TC9-2019-110.pdf
- DOI:
- 10.21014/tc9-2022.110
- Event details
- IMEKO TC:
- TC9
- Event name:
- FLOMEKO 2022
- Title:
19th International Flow Measurement Conference 2022
- Place:
- Chongqing, CHINA
- Time:
- 01 November 2022 - 04 November 2022