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 The
Paddle Wheel Flowmeter is offered in several different designs.
These flow meters consist of a paddle wheel located in the flow
path of the flow meter. As fluid flow causes the paddle wheel
to rotate, an electrical (AC) voltage is generated in a magnetic
pick up coil, mounted on the meter housing (body), located immediately
adjacent to the flow path. As each paddle wheel passes through
the magnetic field, a pulse is generated. The waveform produced
is a modified sine wave that approaches a pure sine wave as
the wheel speed increases. The frequency of the AC signal is
proportional to the flow rate through the meter.
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