Vortex Flow meter
نوامبر 6, 2016Variable Area Flow meter
نوامبر 6, 2016Ultrasonic flow meter
Independent of fluid conductivity and pressure
Pipe diameter range: 100mm to 6,500 mm
Flow velocity :0.01 m/s to 25 m/s
Accuracy: 1% of measured valve.
Display with current (4-20ma), voltage, pulse and relay.
An ultrasonic flow meter is a type of flow meter that measures the velocity of a fluid with ultrasound to calculate volume flow. Using ultrasonic transducers, the flow meter can measure the average velocity along the path of an emitted beam of ultrasound, by averaging the difference in measured transit time between the pulses of ultrasound propagating into and against the direction of the flow or by measuring the frequency shift from the Doppler effects. Ultrasonic flow meters are affected by the acoustic properties of the fluid and can be impacted by temperature, density, viscosity and suspended particulates depending on the exact flow meter. They vary greatly in purchase price but are often inexpensive to use and maintain because they do not use moving parts, unlike mechanical flow meters.
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