You Should Know About Water Flow Sensor and Controller


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2020/12/17


A liquid flow controller gauges the amount of liquid that enters a vaporizer. But, in return, it controls the mass of the vapor. Simultaneously, a liquid flow sensor is used to gauge the amount of water passing through a tube.

There are several types of liquid flow sensors in the industry. Yet, each design has a unique law of operation as well as merits. In this guide, you will learn about the water flow sensor and controller.

Mechanical Water Sensors

Mechanical meters are the most used type of water flow meters. They gauge the liquid flow through the turbine spin with a shunt or propeller. The sensors work by gauging water flow speed in a tube, which causes either a turbine or piston to spin.

Usually, the liquid's volumetric flow rate is the same as the spinning speed of the blades. When using this type of liquid flow meter, do not use it when the water flow is low. Another demerit of this sensor is that it may clog up if the water used is dirty. 

Magnetic Sensors

Magnetic meters gauge the speed of water passing through a tube using a magnetic field. They work under Faraday's law, which says that liquid produces a voltage when it flows in a magnetic field.

If the liquid flows faster, then more voltage is created. Those voltages are the same as the water flow. Did you know that the voltage signs are created into the volumetric rate of flow by the electronics? Well, that is the truth of the matter.

The magnetic flow meter is not fit for custody transfer uses. That is because the sensor shows an intermediate accuracy. It can also not gauge pure water since pure water has no ions to be measured.

Ultrasonic Meters

Ultrasonic meters gauge the speed of water passing across the tube. They use the ultrasound to gauge the volumetric flow rate. In some of these meter designs, an ultrasonic sign is relayed to the side of the flowing fluid. Another signal is relayed against the flowing liquid upstream.

The sonic beat's time to move downstream is compared to the pulse's time to move upstream. That is how the sensor gauges the speed of a flowing fluid.

Liquid Flow Controller

A liquid flow meter uses an integrated flow rate meter and a control valve to control the flow rate. Depending on the flow rate you need, the controller will change the integrated valve as you wish. It also gives you the chance to operate the flow controller from many settings and positions. Liquid flow controllers can control the sample flow rate and on-demand chemical dilution and blend.

The liquid flow controller is vital due to its accuracy level. It also compensates for changes in many force settings, which allows for a stable flow rate.

Final Thoughts

As you have seen, liquid flow sensor designs are available to choose from depending on your needs. While selecting your next liquid flow controller, consider the maintenance needs and budget. That would help you be on the safe side.


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Published: 2020/12/17 - Updated: 2021/01/18
Total: 509 words


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