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Ultrasonic Flow Meters

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Ultrasonic flow meters are available in both single and dual-sensor versions though models using two sensors are more common and may be more accurate. Ultrasonic flow meters are ideal for wastewater applications or any dirty liquids that are conductive or water-based. Read More…

Ultrasonic Flow Meters Ultrasonic flow meters are flow meters that use sound to determine flow rate. An ultrasonic flow meter is a volumetric flow meter that requires particulates or bubbles in the flow.
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Leading Manufacturers

Monterey, CA  |  831-373-0200

Sierra manufacturers high performance mass flow meters and controllers for nearly any gas, liquid or steam. Customers choose Sierra when they need an accurate and repeatable flow measurement, short delivery lead times, expert flow advice and long term support. When it matters, choose Sierra. Visit www.sierrainstruments.com.

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Sierra Instruments $$$

Sturtevant, WI  |  262-886-2695

SIKA is a developer and manufacturer of flow control products and a wide variety of other measuring and monitoring systems. Our inventory includes flow sensors, flow meters, flow switches, and many more. We know that flow solutions aren't one-size-fits-all, which is why we provide consultation and flow management solutions that are individualized and customized to your requirements. When you choose SIKA, you will receive efficient, durable products and customer service tailored to your needs.

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SIKA USA $$$

Peabody, MA  |  978-535-6060

Founded in 1921, KROHNE has become a worldwide manufacturer and supplier of flow measurement devices. Our product lines specialize in flowmeters such as ultrasonic flowmeters, vortex flowmeters, mass flowmeters and more. We also offer complete batching systems as well as loading software, thermometers, pressure sensors, level management devices and virtually any other process instrument you need.

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KROHNE, Inc. $$$

Irvine, CA  |  800-325-1405

The flow meters that we are able to provide will withstand the tests of time in order to provide a long lasting value! We have locations in thirty five countries worldwide and we are dedicated to being wherever you need us to be! We have the knowledge and the capability to work with you closely in order to come up with the perfect product to suit your needs! Visit our website today to learn more about what we may do for you!

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Burkert Fluid Control Systems $$$

Tempe, AZ  |  480-240-3400

Flow Technology specializes in liquid flow meters, gas flow meters, water flow meters, mass flowmeters, ultrasonic flowmeters and air flow meters. Flow Technology is recognized worldwide for providing high-accuracy flow metering solutions with unmatched flow measurement resources.

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Flow Technology, Inc. $$$
placeholder image Sierra Instruments SIKA USA KROHNE, Inc. Burkert Fluid Control Systems Flow Technology, Inc.

Ultrasonic flow meters are ideal in situations where low-pressure drop, chemical compatibility, and low maintenance are required. However, ultrasonic flow meters will generally not work with distilled water or drinking water because they are too clean and pure in which case water flow meters are the best option. These flow meters are made out of metal such as steel when used inline.

Transi-Flo I Ultrasonic AC Powered Flow Meter Ultrasonic Flow Meters - Hoffer Flow Controls, Inc.

Important considerations to keep in mind while choosing an ultrasonic flow meter include the size of the pipe, the minimum/maximum flow rate required, and the minimum/maximum process temperature and pressure needed. Also, determining whether a handheld or continuous process monitor is necessary is also important. Many meters of this kind do not need to be part of the pipe system but can be installed outside of the piping. Ultrasonic flow meters are widely used by many industries that work with free flowing liquids.

The basic principle of operation employs the Doppler Effect which is the term used to refer to a shift in frequencies when an ultrasonic signal is reflected by discontinuities in the form of suspended particles or bubbles in motion. Ultrasonic sound is transmitted through a transducer into a pipe with flowing liquids. The solid particles or air bubbles reflect the ultrasonic wave with a slightly different frequency that is directly proportional to the rate of flow of the liquid. A second transducer picks up the reflecting waves and reports the difference. This process allows the meter to get an accurate measure of the liquid's flow rate.

Clamp-on type flow meters are another option. They measure the flow through the pipe without requiring any parts to be exposed to the stream, ensuring that corrosion and other effects from the fluid will not damage the sensors. Plastic or metal-housed transducers are placed on opposite sides of a pipe and are connected to a handheld electronic device that can provide a reading as well as trend patterns and other details.

Many designs besides clamp-on types are portable, a feature particularly useful for acting as a backup for a preexisting flow meter or for double-checking existing meters in a number of locations.

Ultrasonic flow meters may be specially adapted to measure the flow rate of gasses while others are meant for use in open channels. Flow switches may be added if a report or alarm is desired.

Ultrasonic Flow Meter Informational Video

 
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