What is ultrasonic flow transmitter and what is working principle of ultrasonic flow transmitter and how to configuration and calibration full details.

 


Ultrasonic Flow Transmitter: Principles & Calibration.


An ultrasonic flow transmitter is a type of flow meter that uses ultrasonic waves to measure the flow rate of a fluid. It is a non-intrusive type of flow meter, meaning it does not require any parts to be inserted into the fluid flow path. Ultrasonic flow transmitters are commonly used in a variety of industries, including oil and gas, chemical processing, water treatment, and HVAC systems.


Working Principle of Ultrasonic Flow Transmitter:



The basic working principle of an ultrasonic flow transmitter is that it sends ultrasonic waves through a fluid in a pipe and measures the time it takes for the waves to travel between two transducers. The transducers are placed on opposite sides of the pipe, with one transducer sending the ultrasonic wave and the other transducer receiving it. The ultrasonic wave travels faster in the direction of the flow than against it, so the difference in the time it takes for the wave to travel between the transducers in each direction can be used to calculate the velocity of the fluid. The velocity measurement can then be combined with the cross-sectional area of the pipe to calculate the flow rate of the fluid.


Configuration and Calibration of Ultrasonic Flow Transmitter:


To configure and calibrate an ultrasonic flow transmitter, several steps need to be taken:


Step 1: Mounting the Transducers - The first step is to mount the transducers on the pipe. The transducers should be placed on opposite sides of the pipe and should be aligned correctly to ensure accurate measurements.


Step 2: Setting up the Electronics - The next step is to set up the electronics of the flow transmitter. This involves configuring the settings for the specific application, including the pipe diameter, fluid type, and temperature range.


Step 3: Performing Zero Calibration - Before the flow transmitter can be used to measure flow, it must be zero calibrated. This involves setting the flow transmitter to read zero when there is no flow in the pipe.


Step 4: Performing Velocity Calibration - The final step is to perform a velocity calibration. This involves measuring the actual flow rate in the pipe using another method, such as a flow meter, and comparing it to the readings from the ultrasonic flow transmitter. Any discrepancies can then be corrected by adjusting the flow transmitter's calibration settings.


Conclusion:


Ultrasonic flow transmitters are an effective and accurate way to measure fluid flow rates in a variety of applications. They are non-intrusive, meaning they do not require any parts to be inserted into the fluid flow path. The working principle of an ultrasonic flow transmitter is based on the time it takes for ultrasonic waves to travel between two transducers. The configuration and calibration process involves mounting the transducers, setting up the electronics, performing zero calibration, and performing velocity calibration. With proper configuration and calibration, ultrasonic flow transmitters can provide highly accurate and reliable flow rate measurements.

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