What is a magnetostrictive device?
Magnetostrictive transducers: electromechanical devices that use magnetostriction, an effect found in some ferromagnetic materials that changes dimension in response to the application of a magnetic field.
What is magnetostrictive probe?
A magnetostrictive probe is built by suspending a ferromagnetic metal wire inside a long stem. Electronics at the top of the stem generate an electrical pulse that travels down the wire, at regular intervals. This creates the first magnetic field.
Where is hysteresis used?
It is mostly used to retain a memory, for example, hard disks, magnetic tape, and credit cards. Hysteresis is applied in many artificial systems such as in thermostats and Schmitt triggers which are designed to prevent unwanted frequent or unwanted rapid switching.
What is magnetostrictive sensor used for?
Magnetostrictive sensors – applications Magnetostrictive transducers are used for position measurement. The sensors are especially used to measure the stroke of hydraulic cylinders. Their cylindrical design predestines magnetostrictive transducers for industrial application and the installation in hydraulic cylinders.
What is a magnetostrictive material?
Magnetostrictive materials are a class of smart materials that can convert energy between the magnetic and elastic states. For this reason, magnetostrictive materials and devices based on these materials are often referred to as transducers.
What is the difference between magnetostrictive material and piezoelectric material?
A magnetostrictive material has the property of mechanically deforming its structure, when exposed to a magnetic field. A piezoelectric material can be polarized and create an electric field under mechanical stress (direct effect).
Can magnetostrictive materials be used for actuation and sensing?
Due to the bidirectional nature of this energy exchange, magnetostrictive materials can be employed for both actuation and sensing.
Does magnetostriction exist in iron and steel?
Although some features of the magnetostriction in iron and steel still need additional explanation, the main features of the magnetostriction are accounted for.