Advantages of Liquid Ultrasonic Flow Meterby Will S. Flow Meter and Switches
Water flow meters have become very important in the water and waste water industry. Accurately measuring the flow of liquid is vital in every operation of a water or waste water utility. Incorrect measurement affects the profit and loss margin of the company. There are even instances where an error in the measurement of the flow of water could create a disaster for the company. These devices are widely used in the water and waste water industry, particularly the ultrasonic type of water flow meter.
There are many reasons why an ultrasonic liquid flow meter is regarded more advantageous when it comes to the operation of the water and waste water process. These are non-intrusive. They produce ultrasonic signals to measure the flow in conduits.
This feature makes these devices ideal for different industries that require low maintenance costs. It is ideal for applications that require low pressure drops and chemical compatibility.
These ultrasonic flow meters utilize a shift in ultrasonic signals which reflect off the suspended particles or gas bubbles found in waste water. These bubbles and particles are often a disruption of the functions of an ordinary flow meter. The shifting of the frequencies - Doppler Shift technology is however cleverly utilized for the ultrasonic type. When the ultrasonic sound is beamed through the water, the bubbles and particles are reflected at a different frequency. The reflected echo is directly proportional to the flow rate of the medium flowing in the pipe.
Doppler types are not ideal for use on pipes that transport drinking water or clear liquids. Doppler type ultrasonic flow meters require particulates or aeration in the water. These are generally not found in pure or drinking water. When selecting this type of meter, make sure that you consider the different factors that would affect the functionality of the device. The most important one is to establish if the liquid is clean or contains suspended solids or entrained air. This is probably the most important factor and most errors arise from incorrect application of technology. The size of the pipes, material of construction, temperature and pressure, are all parameters required to ensure an accurate flow rate calculation by the meter.
Furthermore, you need to consider if the application requires a continuous process monitor, or a portable-handheld device. The greatest feature of this type of device is that it is non-intrusive and installed externally within a few minutes. Total cost of installation is often overlooked. The ultrasonic flow meter is installed at much lower cost than most meters without compromising the accuracy.
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Created on Feb 18th 2020 05:40. Viewed 183 times.
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