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Flow measurement can be measures in number of ways. This article provides information on Ultrasonic flow meter Cheap Michael Palardy Jersey , vortex flow meter and portable ultrasonic flow meter. Let us start discussing these one by one.


Using the principle of ultrasound, ultrasonic flow meter is used to measure the velocity of a liquid or gas. They don’t use moving parts and thus are inexpensive to use and need very less maintenance. They are highly affected by density, velocity and temperature of the flowing medium. There are three kinds of ultrasonic flow meters; transmission, reflection and open channel flow meters. Transmission flow meters can be divided into intrusive and non-intrusive varieties. Flow meters that use Doppler shift are reflection or Doppler flow meters. Ultrasonic flow meter works on the principle that measures the difference of the transit time of ultrasonic pulses that transmit signals through the flow. Also, the difference between the two transmit times is used to calculate the flow rate. They are also more accurate and reliable than any other system. Ultrasonic flow measurement technology consists of transit-time technology Cheap Mike Adams Jersey , where the two transducers both as an ultrasonic transmitter and receiver; Ultrasonic Doppler technology, in which two ultrasonic transducers are employed in the system and lastly cross- correlation measurement, in which turbulence at a certain distance are correlated. Let us now talk about vortex flow meter and portable flow meter in detail.


Vortex flow meter is also known as the vortex shedding flow meter or oscillatory flow meter. It measures the vibration of the downstream vortexes caused by a barrier in the moving stream. Vortex flow meter and velocity of the flow are interrelated to each other. The rate at which these vortices shed is given by the following equation:


f = SVL


Where,
f = the frequency of the vortices


L = the characteristic length of the bluff body


V = the velocity of the flow over the bluff body


S = Strouhal Number and is a constant for a given body shape


Let us discuss the applications, advantages and disadvantages of the vortex flow meter.


Applications

Condensate measurement Potable water Ultrapure & de-ionized water Acids Solvents

Advantages

It has no moving parts. It is inexpensive. It is accurate and reliable. It doesn’t involve lot of maintenance. It is easy to install It is high long term stability It is not affected by density and temperature. It is widely used in the oil Cheap C.J. Anderson Jersey , gas, pulp & paper industries.

Disadvantages

Not a good choice for liquid fluid velocities. Minimum length of the straight-run pipe if fixed. Sometimes, installation also doesn’t provide for the straight-run pipe, so one needs to be very careful.

Portable Ultrasonic flow meter is non-invasive for closed pipe and open channel applications. It involves minimum installation, low cost and no pressure loss and this makes portable ultrasonic flow meter the best choice than any other system. It is also suitable for balancing Cheap Da'Norris Searcy Jersey , cooling, heating and pollution control. The PT878 is an example of portable ultrasonic flow meter that is used to measure both clean liquid and the liquid that contains bubbles. It can easily be installed and runs within minutes.


Hopeful, that the article explains clearly about the different types of flow meters and this shall help you can making the right selection of the flow meter; be it ultrasonic flow meter, vortex flow meter or portable ultrasonic flow meter.


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