COMBINED MEASUREMENT OF FLOW VELOCITY AND FILLING WITHIN FULLY ELECTROMAGNETIC FLOWMETER FOR OPEN CHANNELS
Abstract
The paper presents practical aspects of the application of the least squares method as an algorithm for both flow velocity and filling measurements in the case of electromagnetic flowmeters for open channels. The method consists in fitting the flow signal with two waveforms that carry information about the measuring parameters. The basic drawbacks of the method caused by the necessity to perform numerical differentiation as well as by the differences between the signal components and the signal itself are presented together with the efforts to reduce them.
Event details
- Event
- XIX IMEKO World Congress
- Place
- Lisbon, PORTUGAL
- Time
- 6 September 2009 - 11 September 2009
- Website
- http://www.imeko2009.it.pt/