Introduction to the Ultrasonic gas meter

An Ultrasonic gas meter uses sound waves to determine the speed at which a fluid flows through a pipe. Under non-flowing conditions, the frequency of the ultrasonic wave transmitted into the pipe is the same as the frequency it reflects from the fluid. Under flow conditions, the frequency of the reflected wave is different due to the Doppler effect. When the fluid is moving faster, the frequency shift increases linearly. The transmitter processes the signals from the transmitter and reflected waves to determine the flow rate. Here are some answers.

Here is the content list:

• An Ultrasonic gas meter is used for flow measurement.

• An Ultrasonic gas meter is available in sizes up to 72 inches or larger.

An Ultrasonic gas meter is used for flow measurement.

The Smart ultrasonic gas meter transmits and receives ultrasonic waves between the sensors in the upstream and downstream directions of the pipe. Under no-flow conditions, the time required between the sensors upstream and downstream is the same. Under flow conditions, the upstream wave moves more slowly and takes more time than the downstream wave (which is faster). When the fluid is moving faster, the time difference between upstream and downstream increases. The transmitters process the upstream and downstream times to determine the flow rate. They account for around 12% of all flow meters sold. This technology can be very accurate and is used for regulated transfers of gas and oil fluids, meaning accurate accounting of expensive fluids. High turndown (readable down to full scale or as a percentage of the top reading), can handle high pressures, repeatable (consistent), can handle extreme temperatures, can be clamped to the outside of the pipe for use without penetration, low maintenance, highly reliable and self-diagnostic.

Some Ultrasonic gas meters use clamp-on sensors that can be mounted on the outside of the pipe without any wetted parts. A portable Intelligent ultrasonic gas meter using clamp-on sensors allows temporary flow measurements to be made. Clamp-on sensors are particularly useful when the pipeline cannot be disturbed, for example in power and nuclear industry applications. In addition, clamp-on sensors can be used to measure flow regardless of construction materials, corrosion and wear. Attractively, however, the use of clamp-on sensors introduces an additional ultrasonic interface that can affect the reliability and performance of these flow meters. In particular, if not properly applied and maintained, attenuation of the ultrasonic signal can occur at the interface between the clamp-on sensor and the outer pipe wall and between the inner pipe wall and the fluid.

An Ultrasonic gas meter is available in sizes up to 72 inches or larger.

An Ultrasonic gas meter is typically used to measure the velocity of liquids that allow ultrasonic waves to pass through, such as water, molten sulfur, cryogenic liquids, and chemicals. Transit time designs are also available for measuring the flow of gases and vapors. Be careful as liquids that cannot pass ultrasound, such as many types of slurry, limit the penetration of ultrasound into the liquid. In Ultrasonic gas meters, opaque fluids can restrict the ultrasonic waves from penetrating too close to the pipe wall, which can reduce accuracy or cause the meter to fail to measure. When the opaque fluid weakens the ultrasonic waves to the point where they cannot reach the receiver, the GPRS ultrasonic gas meter will not work.

With Ultrasonic gas meters, it is important to ensure that the fluid can adequately conduct the ultrasound, as the meter will not measure when the ultrasound cannot penetrate the water flow between the sensors. Similarly, an ultrasound must be able to penetrate the fluid for the meter to operate accurately. When the fluid is relatively opaque and does not penetrate the fluid, the meter tends to measure the velocity of the fluid at or near the pipe wall, which can cause significant measurement errors and lead to meter failure. With IoT ultrasonic gas meter, it is important to ensure that the fluid reflects the ultrasound sufficiently, as the meter will not work without the reflected ultrasound signal.

For more Ultrasonic gas meter-related questions, please feel free to ask us. With many years of accumulated experience in R&D and production, we can provide you with more product services and technical support! Our official website is https://www.kinhilgas.com/.