The Doppler Flow Meter has been in use for decades because it measures flow velocity without intruding into a body or process. Moreover, the Doppler shift principle finds application in various everyday scenarios. For instance, it is utilized in measuring blood flow, open channels, and liquid velocity in closed pipes.
Types of Doppler Flowmeter
EESIFLO 3000 SERIES Doppler Flow Meter
A Doppler flow meter accurately measures the flow velocity of liquids or gases within pipes by emitting ultrasonic waves into the fluid and analyzing the frequency shift of the reflected waves. This principle, based on the Doppler effect, describes how waves change in frequency when reflected off moving objects.
Key features of Doppler flow meters include their capability for permanent installation on pipes, providing continuous and reliable flow measurements without direct contact with the fluid. This capability makes them ideal for various industrial and commercial applications.
Furthermore, these flow meters typically include a local display for real-time flow rate information, enabling operators to monitor fluid flow on-site. They also feature a 4-20 mA output signal, which facilitates seamless integration with control systems and data acquisition devices standardized in industrial instrumentation.
Doppler flow meters come in various configurations to meet specific operational needs. They commonly support both 110 VAC and 220 VAC power supplies, ensuring compatibility with different electrical systems used in various regions and industries.
In industrial settings, Doppler flow meters excel in applications involving fluids with particles or bubbles that reflect ultrasonic waves, enabling accurate measurements. Typical uses include monitoring flow rates in wastewater treatment plants, chemical processing facilities, cooling systems, and HVAC installations.
EASZ 10-P Portable Doppler Flowmeter
The battery-operated handheld Doppler flowmeter uses the Doppler Shift Principle to accurately measure flow velocities in liquids containing small particles or air. It operates across various pipe sizes and applications, making it ideal for environments where traditional mechanical flowmeters struggle, such as with slurry pumps.
This portable device emits ultrasonic waves into the fluid using the Doppler effect. These waves reflect off particles or bubbles in the liquid, and the frequency shift between emitted and received waves indicates flow velocity. It calculates and displays real-time flow rates on its built-in screen.
Designed for ease of use in the field, the flowmeter is portable for on-the-spot measurements without complex installation. Its compact, battery-operated design provides flexibility to assess flow conditions quickly in diverse industrial settings.
Key features include robust construction suitable for harsh environments and the capability to handle challenging fluids like slurries. Intuitive controls and a clear display interface make operation straightforward for field technicians and engineers.
Applications for the handheld Doppler flowmeter include monitoring slurry pump outputs, assessing flow rates in processes where air or small particles are present in liquids, and troubleshooting flow issues where traditional methods are impractical or unreliable.
What applications are suitable for Doppler Flow Meter:
– Wastewater flow
– Sludge flow
– Raw sewage flow
– Pipes with abrasive liquids, such as limestone slurry
– In dredging applications
– In various mining scenarios where rocks, stones, solids, and other materials damage conventional flowmeters
– At slurry pump outlet flow
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