TF’s new UTF03HR transducer works in combination with TF control units, in their ‘flow measurement’ configuration, to provide flow measurement of open channels using non-contact ultrasound when using a suitable primary measuring device such as a channel or weir.
The UTF03HR operates at 125kHz. The higher the frequency of the transducer, the better its resolution and the higher the accuracy of the resulting measurement. According to the terms of the UTF03HR, a system must achieve an overall accuracy of at least ±8% in a 24-hour period. An important factor in improving accuracy is the location of the transducer. The accuracy of the flow measurement is fundamentally related to the distance over which the measurement is taken, so it is vital that the transducer face is positioned as close to the liquid as possible. The unique design of the UTF03HR allows it to be positioned only a few mm above the maximum liquid level. The UTF03HR is the first ultrasonic transducer without an upper dead zone beyond its length. Add to this the reflective canopy that reduces the effect of heat radiated by the sun. UTF03HR is therefore the most advanced, most effective and most accurate ultrasonic transducer for open channel flow measurement. UTF03HR can be positioned up to 1000m from its control unit, minimising installation costs through the use of a simple shielded interconnecting cable. TF controllers are configured to calculate the flow rate when used with a suitable primary metering device.