Title :
A new approach to estimating the main error of a primary transducer for an electromagnetic flowmeter
Author :
Michalski, Andrzej
Author_Institution :
Inst. of the Theor. of Electr. Eng. & Electr. Meas., Warsaw Univ. of Technol., Poland
fDate :
6/1/2001 12:00:00 AM
Abstract :
The existing methods for estimating the error caused by various flow parameters for electromagnetic flowmeters are based on nonhomogeneity in the distribution of a weight vector. The author presents a new numerical flow generator, called the moving stream method, that allows for an estimate of the primary error for a flowmeter during the design stage much more precisely than classical methods. It considers the contribution to measurement error that various flow velocities make within a measurement zone. The simulated flows account for all hydrologic conditions existing in the field
Keywords :
electromagnetic devices; electromagnetic induction; flowmeters; measurement errors; design stage; electromagnetic flowmeter; flow velocities; hydrologic conditions; measurement error; moving stream method; nonhomogeneity; numerical flow generator; primary error; primary transducer; weight vector; Density measurement; Electric variables measurement; Electrodes; Electromagnetic measurements; Fluid flow measurement; Hydrologic measurements; Magnetic field measurement; Transducers; Velocity measurement; Voltage measurement;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
