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Shunt meters with segmental orifices

, : Shunt meters with segmental orifices. Transactions of the ASAE 21(4): 719-722

An inexpensive shunt meter to monitor irrigation flows is described. It is constructed using a segmental orifice, any household water meter, and standard piping. The discharge rating curves for several segmental orifices with different dam heights that can be used in 20.32 and 26.04 cm pipes are presented. Using these curves and a simple manometer, the shunt meter can be field adjusted to give the desired coefficient relating the total volume of flow to the volume indicated by the shunt meter.


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