Ultrasonic Flow Meter
Ultrasonic flow meter works on the Transit Time or Time of Flight principle. The Flow meter unit utilizes two transducers that functions as both Ultrasonic transmitter and receiver. The transducers are either clamped on or inserted to the outside surface of the closed pipes. The transit time flow meter measures the time it takes for an ultrasonic signal transmitted from one transducer to cross the pipe and be received by second transducer. The flow is then measured by comparing the upstream and downstream time of Ultrasonic signal. With no flow through the pipe the transit time would be equal in both directions
For measuring the Flow of the medium, two ultrasonic pulses are
sent through the medium, one in the flow direction and other in
the opposite direction.
The transit time of the two pulses are then measured. The transit
time difference Δt between these two pulses gives the average
flow velocity on the propagation path of the Ultrasonic signals.
This can be used to obtain the average flow velocity on the
cross section of the pipe, which is proportional to the
volumetric flow.
We provide both Clamp-on Type and Insertion Type Ultrasonic Flow Meter.
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