Principle analysis of Yokogawa vortex flowmeter
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This post was last edited by yuchenchf on 2017-4-22 08:39. I. Structural diagram of the Yokogawa vortex flowmeter: A triangular prism is inserted into the pipeline; as the fluid flows past, it causes the prism to swing laterally, and two crystals located inside the prism generate signals of different amplitudes. The signal located above is greater than the signal below. The crystal on top represents the flow signal, while the one below represents the vibration signal. When vibration occurs, the vibration signals are close to each other, while the flow signals differ significantly; by subtracting the two signals, the flow signal is obtained. II. Structural diagram of the built-in sensor core III. Raw signals from the gas pipeline output
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Could you also provide a detailed introduction to the vortex flow meters from E+H, Rosemount, and Coriolis in the same way?
It’s not detailed enough; the piezoelectric crystals in the Yokogawa vortex street are each divided into two halves, so in reality it can be said that there are 4 such crystals. Yokogawa is highly sensitive to lateral vibrations perpendicular to the left and right sides of the sensor; it cannot withstand vibrations in these two directions. I have physical photos of Yokogawa and Rosemount. Those who are interested in Rosemount, Yokogawa, E+H, and Coriolis flowmeters can delve into a more in-depth discussion.