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Title: Correlation Of Ultrasound And Pressure In Vortex Shedding Flow-Meters
Author: H. Windorfer, V. Hans
Source: Flomeko 2000
Year Published: 2000
Abstract: Using ultrasound for the detection of vortex frequency in a vortex shedding flow-meter is a powerful combination. The demodulated timesignal of the ultrasound differs from the known timesignal received by the pressure sensor. The optimisation of bluff-bodies for the generation of well defined vortices requires a visualisation of the vortex street and the correlation of pressure and ultrasound for the enlightenment of the differences. Measuring the timedependent pressure plot around the bluff body shows the correlation between the modulation of the ultrasonic signal and the pressure structures separating from the bluff body.

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