On Measurement Uncertainty of a Vortex Flowmeter
Abstract
Measurement uncertainty of a T-shaped flowmeter was examined with a gas flow calibration facility, for Reynolds numbers, <i>Re</i><sub>d</sub>, in a range of 2.56 × 10<sup>4</sup> - 1.56 × 10<sup>5</sup>. The total uncertainty interval of the Strouhal values deduced from a Fourier spectral analysis was ±0.745 %, and the linearity of the data was ±1.78 %. Meanwhile, a scheme based on pulses counting in reference to the analog signals measured gave the total uncertainty interval of the meter factor as ±0.568 %, with the linearity ±1.89 %.
Event details
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- tc9-2004