04-06-2013, 12:03 PM
PRESENTATION ON MAGNETOSTRICTIVE MATERIALS
[attachment=54720]
Discovery
The effect was first identified in 1842 by James Joule when observing a sample of nickel
Cause Of Magnetostriction
Internally, ferromagnetic materials have a structure that is divided into domains,each of which is a region of uniform magnetic polarization.
When a magnetic field is applied the boundaries between the domains shift and the domains rotate, both of these effects cause a change in the material's dimensions.
CHARACTERISTICS
It is a type of a smart material
They can operate at higher temperatures
They can also undergo higher strains and lower input voltages.
It is a reversible material feature
In the absence of the magnetic field, the sample shape returns to its original dimension
It only occurs in a material at temperatures below the Curie temperature
Temposonics
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.
FeONIC
is a commercial company specialising in the design and development of Magnetostrictive Audio products
This material was initially developed for sonar devices by the US Navy. The products developed by FeONIC use the unique force created by the change in shape of this smart material to vibrate structures such as floors, windows, walls and even the acoustically conductive structures of ships to produce highly intelligible wide bandwidth sound.
The company has developed a revolutionary new range of “F Drives” to create flat panel speakers with various applications in the transport, pro audio, domestic, consumer and commercial markets.
Conclusion
The appropriate manufacturing technologies for high volume applications have also been developed.
work in devising new structures and various combinations of different technologies still needs to be carried out to illustrate the capabilities of MS technology regarding superiority in functionality and reduction in costs
Potential applications of the technology in simple, high energy density structures with fast responses extend over a range of different industries including the medical industry and the automotive industry with their high volume requirements
[attachment=54720]
Discovery
The effect was first identified in 1842 by James Joule when observing a sample of nickel
Cause Of Magnetostriction
Internally, ferromagnetic materials have a structure that is divided into domains,each of which is a region of uniform magnetic polarization.
When a magnetic field is applied the boundaries between the domains shift and the domains rotate, both of these effects cause a change in the material's dimensions.
CHARACTERISTICS
It is a type of a smart material
They can operate at higher temperatures
They can also undergo higher strains and lower input voltages.
It is a reversible material feature
In the absence of the magnetic field, the sample shape returns to its original dimension
It only occurs in a material at temperatures below the Curie temperature
Temposonics
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.
FeONIC
is a commercial company specialising in the design and development of Magnetostrictive Audio products
This material was initially developed for sonar devices by the US Navy. The products developed by FeONIC use the unique force created by the change in shape of this smart material to vibrate structures such as floors, windows, walls and even the acoustically conductive structures of ships to produce highly intelligible wide bandwidth sound.
The company has developed a revolutionary new range of “F Drives” to create flat panel speakers with various applications in the transport, pro audio, domestic, consumer and commercial markets.
Conclusion
The appropriate manufacturing technologies for high volume applications have also been developed.
work in devising new structures and various combinations of different technologies still needs to be carried out to illustrate the capabilities of MS technology regarding superiority in functionality and reduction in costs
Potential applications of the technology in simple, high energy density structures with fast responses extend over a range of different industries including the medical industry and the automotive industry with their high volume requirements