Ultrasonic Meter

Definition - What does Ultrasonic Meter mean?

An Ultrasonic Meter, also known as Sonic Meter or Ultrasonic Flow Meter, is an equipment which measures the velocity of a fluid flowing through a pipeline by transmitting ultrasonic sound waves across the pipeline. If the frequency of these waves remains unchanged, it means that the pipeline is empty and not operational; however, if any fluid or gas is flowing inside the pipeline, the frequency of the ultrasonic waves changes because of Doppler Effect. If the velocity is high, the frequency of the sonic wave shifts linearly.

Petropedia explains Ultrasonic Meter

Ultrasonic meters are mainly installed at city gates, in stations or at certain places where the custody transfer of natural gas or any other petroleum liquid takes place. They are helpful in determining the accurate amount of gas or liquid transferred from one party to another. Both parties once satisfied during custody transfers allow no teething problems between them.

Ultrasonic meters are of three types, i.e., time transit flow meters, Doppler shift flow meters and open channel flow meters. Some of the benefits of using sonic meters or ultrasonic flow meters are:

  • Accurate accounting of petroleum fluid or gas transfers.
  • Accurate measurements in high pressure and temperature conditions.
  • Low maintenance costs.
  • Highly reliable and self diagnosing.
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