Vortex flow meters were first introduced in the 1970s to cater to industrial needs. From then on the market has grown, but not as spectacularly as ultrasonic flow meters or magnetic flow meters in terms of market size. These flow meters work on the principle called the von Kármán Effect. This principle is concerned with the behavior of fluids when an obstacle is placed in the direction of flow. It has been observed that under the right conditions, the obstacle’s presence actually generates a series of vortices called the Kármán Vortex Street. This phenomenon has been observed in liquids, steam, and gas, and in other diverse conditions like cloud layers while passing an island and white water rapids.
Calculating the flow
According to experts, in a vortex flow meter, the obstacle is an object with a broad but flat front end known as a bluff body. The bluff body is mounted at right angles to the flow stream and the velocity of the flow is directly proportional to the frequency with which the vortices are formed. You can calculate the rate of flow by calculating the area of the pipe and multiplying it by the number of vortices generated. There are different kinds of techniques used to detect a vortex. A vast majority of the vortex flow meters use piezoelectric sensors, while some use a capacitive sensor. A few of the vortex flow meters use an ultrasonic sensor to detect the presence of a vortex.
Types of Vortex flow meters
Essentially, there are three types ofvortex flow meters. These include multivariable, smart or single variable, and conventional vortex flow meters. These flow meters are segmented based on the fluid type: liquid, gas, saturated steam or super heated steam. Additionally, there are vortex flow meters that are segmented according to sensing technology, like piezoelectric vortex flow meters, ultrasonic vortex flow meters and conventional vortex flow meters.
Choosing the best Vortex flow meters
Vortex flow meters are used mostly in the process industry, though they are also used in other utility applications. Some of the industries where vortex flow meters are used include oil and gas, food and beverage, chemicals, pharmaceuticals, water and other commercial utility industries. So, if you are looking for the best vortex flow meters, you will have to first determine your application needs and then determine the most suitable type for meeting those needs.
This article is written by author who is offerings like flow meter, Vortex flow meter, vortex flow meters,Flow Meters etc.Please visit for more details at http://www.clarksol.com | 
