COANDA FLOWMETER WITH ADXL105 ACCELERATION SENSOR

G. C. Sarbu, M. Hagan, M. Cretu
Abstract:
The geometric shape of the Coanda flowmeter produces a continuous, self-induced oscillation at a frequency that is linearly proportional to flow rate. As fluid passes through the meter, it will attach itself to one of the side walls as a result of the Coanda effect. A small portion of the flow is diverted through the feedback passage and travels around to the control port. This feedback flow disrupts the attachment of the main jet to the side wall. The main jet is now free and will attach itself to the other side wall due to the Coanda effect. The feedback action will repeat itself, and in the manner the meter body produces a sustained oscillation. As the main fluid stream oscillates between the two side walls, the flow in the feedback passages cycles between zero and maximum. the cycling of the flow in the feedback passages is detected by a sensor located in one of the feedback passages, while the sensor signal is conditioned by a signal conditioner.
Download:
IMEKO-TC4-2010-098.pdf
DOI:
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Event details
IMEKO TC:
TC4
Event name:
Instrumentation for the Information and Communication Technology Era
Title:
XVIIth IMEKO TC4 Symposium & 15th International Workshop on ADC Modelling and Testing (together with 3rd IMEKO TC19 Symposium)
Place:
Kosice, SLOVAKIA
Time:
08 September 2010 - 10 September 2010