Explaining Working Of A Magnetic Flow Meters

A magnetic flow meter (mag flow meter) is a volumetric flow meter which does not have any moving parts and is perfect for wastewater applications or any grimy fluid which is conductive or water based. Magnetic flow meters will for the most part not work with hydrocarbons, distilled water and some non-aqueous plans).

Magnetic Flow Meters screen the influent, which touches base at the site’s three huge force mains from various areas over the county.

Things being what they are the conductivity of the liquid doesn’t go into that calibration constant. Here’s one approach to consider it. Suppose, for straightforwardness, that the flow velocity is uniform. At that point we should take a gander at the entire circumstance from the reference frame very still as for the liquid. In that reference frame that has a pure magnetic field in the lab becomes to some extent an electric field. In nice cgs units, the electric field E in that frame is E=(v/c)B, where B is the lab magnetic field, to lowest order in v/c. So that implies that in these units, with c= speed of light, :

V= (v/c)BL.

Here V is in statvolts, B is in Gauss, and L is in centimetres.

Conversion to SI units or others isn’t hard.

V (in volts)= v(in meters/second) * B (in tesla) * L (in meters).

In a genuine instrument, the liquid speed isn’t constant all through the tube, being biggest in the middle, so the successful “L” may be somewhat not quite the same as the basic geometrical distance, if for “v” you utilize the normal velocity.

In the event that you utilize this voltage to drive an external circuit that implies that some current is flowing at right edges to the magnetic field and to the liquid flow. The magnetic field applies a force on that present, in the bearing restricting the liquid flow. So whatever work is finished by the current needs to originate from work done by whatever is pushing the liquid flow, generally as you suspected.

Basic Principles and Advantages entailed – Magnetic Flow Meters

When a flowing conducting fluid is subjected to a diagonally magnetic field, the flowing conducting fluid cuts the magnetic field and sources a voltage to be stimulated. This induced voltage is comparative to the liquid swiftness, i.e., flow rate.

Construction

A conducting fluid is flowing through a non-magnetic and non-conducting pipe, that flow rate is to be calculated. Two electrodes are linked in opposite sides of pipe carrying the conducting fluid. These electrodes get in touch with flowing conducting fluid. The pipe is surrounded by an electromagnet that creates a magnetic field.

Benefits

These Magnetic Flow Meters does not cause barrier to flow and hence cause no drop in pressure. For ability, it does not matter if the flow is laminar or turbulent. It gives exact results. Its constancy is high, i.e., it gives a standard performance for an extensive period of time. It can handle greasy materials and liquids comprising of suspended solids. The dimension is self-regulating of temperature, pressure, viscosity and density.

Working Principle

The theory of operation for the magnetic flow meter is based on the Faraday’s Law of Electromagnetic Induction.

When a conductive fluid flows through the magnetic field, a small voltage (u) is stimulated. This voltage is relative to the speed of the flow and is precisely measured by two stainless steel electrodes mounted opposite each other inside the metering pipe. The two electrodes are linked to an advanced electronic input circuitry that processes the signal and in turn feeds it to the microprocessor inside the electronics module. The microprocessor then computes the volumetric flow and directs the various outputs on the terminal board.

Magnetic Flow Meters: Basic Principles and Advantages entailed

When a flowing conducting liquid is subjected to a crossways magnetic field, the flowing conducting liquid cuts the magnetic field and sources a voltage to be induced. This induced voltage is relative to the liquid velocity, i.e., flow rate.

Construction

A conducting liquid is flowing through a non-conducting and non-magnetic pipe, which flow rate is to be calculated. Two electrodes are connected in opposite sides of pipe carrying the conducting liquid. These electrodes get in touch with with the flowing conducting liquid. The pipe is bounded by an electromagnet that produces a magnetic field.

Advantages

These Magnetic Flow Meters does not cause obstruction to flow and therefore cause no drop in pressure. For capacity, it does not matter whether the flow is turbulent or laminar. It gives precise results. Its consistency is high, i.e., it gives a standard performance for an extended period of time. It could handle greasy materials and liquids consisting of suspended solids. The dimension is self-regulating of pressure, temperature, density and viscosity.