What is ultrasonic open channel flow meter and Why Do We Use Them?

Ultrasonic open channel flow meter is an ideal device for channels, flumes and weirs. It uses ultrasonic reflection to determine the distance from the bottom of the ultrasonic probe to the water surface. The elapsed time between when the signal is transmitted and when it is received determines the water level.

If you are looking for more details, kindly visit gallopsensor.

Key Benefits of Holykell Ultrasonic Open Channel Flow Meters

-Reliable performance with impressive accuracy.

-Non-contact measurement adopted, with little maintenance required since no moving parts.

-Simple to Install with a long operational life -Immune to the effects of crystallization, silting, suspended solids and grease, corrosive medium

-Different output signals and power supply supported

-Easy to setup and remote monitoring can be realized through wireless module

Want more information on electromagnetic flow transmitter? Feel free to contact us.

-Run as an economical flow/level/total volume monitoring solution.

-Harsh working environment capable, for example, when the operational environment is with floating, foam, steam, high temperature, it can still work fine. We have solutions.

An ultrasonic open channel flow meter uses ultrasonic reflection to determine the distance from the face of the ultrasonic transducer to the surface of the water.  The elapsed time between when the signal is transmitted and when it is received determines the water level.  The ultrasonic transducer acts as both a pulse emitter and an echo receiver.

Note that the speed of sound is varies with air temperature, so for accurate flow measurement, the transit time must be corrected for speed of sound changes caused by air-temperature changes.  Many ultrasonic transducers have temperature sensors built in, but others may require a stand-alone temperature sensor.   

It is also important that the temperature sensor / ultrasonic transducer not be dramatically hotter (cooler is not usually a problem) than the air temperature - a sensor sun shade may be necessary.

Ultrasonic flow meters are: