Magnetostriction

In a MTS linear-position or liquid-level sensor, a sonic strain pulse is induced in a specially designed magnetostrictive waveguide by the momentary interaction of two magnetic fields. One field comes from a movable permanent magnet which passes along the outside of the sensor tube, the other field comes from a current pulse or interrogation pulse applied along the waveguide. The interaction of the two magnetic fields produces a strain pulse, which travels at sonic speed along the waveguide until the pulse is detected at the head of the sensor.

The position of the magnet is determined with high precision by measuring the elapsed time between the application of the interrogation pulse and the arrival of the resulting strain pulse. Consequently, accurate non-contact position or liquid-level sensing is achieved with absolutely no wear to the sensing components.

The sensor is composed of four key elements:

• Waveguide sensing element
• Integral sensing and output conditioning electronics module(s)
• A protective, product-compatible applications housing designed to provide the right combination of environmental protection and physical mounting configurations for a wide variety of installation possibilities.
• An external permanent magnet.

There are two classic applications of this technology – one where the magnet is attached to a machine part to sense linear position, and the other where the magnet is placed inside a float (designed for a specific density) and the sensor then measures liquid level.

Now, guys, do you have any idea of what you just read? I myself don't even have a single clue! lolz!

Lately I've been fed with these kind of information as the development of my product has been up and running and it has been giving me indigestion as I need to have some knowledge of what might be utilize in the second stage of the development works. How I wish I could mix it into a cup of 3 in 1 coffee...