How does an electromagnetic flow meter work?

How does an electromagnetic flow meter work?

How does an electromagnetic flow meter work?

PRINCIPLES. Electromagnetic flow meters detect flow by using Faraday’s Law of induction. Inside an electromagnetic flow meter, there is an electromagnetic coil that generates a magnetic field, and electrodes that capture electromotive force(voltage).

What is electronic flow meter?

Electronic flow meters are industrial digital flow meters for fluid flow rate measurement. Electronic flow meters are suitable for Industrial liquid, water, natural gas, petrol, fuel, air, and more fluid flow. Electronic flow meters convert the monitored fluid flow into electronic signals.

Who invented the electromagnetic flow meter?

In 1952 the Dutch company Tobi-Meter introduced the first commercial magmeter. In 1962 the British scientist J.A. Shercliff published the “Theory of electromagnetic flow-measurement.” Today there are a few dominant global companies providing more than 200,000 magmeter instruments annually to all industries.

Is standard for electromagnetic flow meter?

Most electromagnetic flowmeters feature a meter size of 15 to 200 millimetres and a velocity range between 0.3 to 10 meters per second. The larger a flowmeter’s size, the higher its velocity capacity and the greater the flow rate it can measure.

What are the advantages of electromagnetic flow meter?

The electromagnetic flow meter provides rapid response to flow changes. It provides linear wide range. Measuring range setting can be optimized. It has ability to measure reverse flow.

Why are flow meters important?

Industrial companies use flow meters because the volumetric fluid flow is one of the most critical processes monitoring and control parameters in many industries including chemical, refining, oil and gas, water/wastewater, electricity, pharmaceutical, food and beverage, and others.

How do I choose a flow meter range?

When selecting a flow meter consideration must be given to:

  1. Flow measurement type – momentum (velocity), volumetric or mass flow measurement.
  2. Media – type of media (liquid, gas or slurry) and any special condition such as particulates in the media and viscosity of the media.

What is the working principle of an electromagnetic flow meter?

These meters are also called as Magflow or Electromagnetic Flow Meters. A magnetic field is applied to the metering tube, which results in a potential difference proportional to the flow velocity perpendicular to the flux lines. The physical principle at work is electromagnetic induction and mathematically defined as E=k*B*D*V.

Why use a magnetic flow meter?

Magnetic flow meters, also known as mag meters, are widely used in a variety of industrial field applications due to their reliable flow rate measurements and features such as low pressure loss and maintenance-free operation.

What is an electromagnetic flowmeter?

The electromagnetic flowmeter is an instrument for volume flux measurement. The flux measurement will not be influenced by the fluid density, viscosity , temperature, pressure and electrical conductivity changes. There is a linear relationship between the inducing voltage signal of sensor and the average velocity. Its accuracy is high.

How do magnetic flow meter work?

Magnetic flow meters works based on Faraday’s Law of Electromagnetic Induction . According to this principle, when a conductive medium passes through a magnetic field B, a voltage E is generated which is proportional to the velocity v of the medium, the density of the magnetic field and the length of the conductor.