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When a magnetic material changes shape or size in response to the application of a magnetic field, this is referred to as magnetic shape memory (MSM). There are two different kinds of MSM effects.
The first one happens in a twinned magnetically ordered material, where the magnetic field applied causes the crystallographic axes to be irreversibly reoriented.
Any class of computer memory systems made up of a massive arrangement of microscopic torus-shaped structures made of a hard magnetic substance that may be magnetised in one of two directions is known as magnetic-core memory, also known as core memory or magnetic-core storage.
This actuator uses a unique magnetic shape memory alloy that, when exposed to a magnetic field, exhibits reversible strain deformation more than 10%. The material remains in its strained state after the magnetic field is removed.
The Global Magnetic shape memory actuator market accounted for $XX Billion in 2023 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2024 to 2030.
A push-pull type actuator made with a magnetic shape memory alloy has been created by NASA Goddard Space Flight Center.
The actuator’s nanoscale accuracy and self-position sensing enable reliable and accurate actuation with applications ranging from straightforward locking mechanisms to precise optical instrument pointing.
The actuator’s position is preserved when the magnetic field is removed or the device is turned off because to the innovative magnetic shape memory alloy’s special features, which enable rapid actuation up to thousands of times per second.
This actuator makes use of a brand-new magnetic alloy with shape memory, which shows reversible strain deformation of more than 10% in the presence of a magnetic field. The material keeps its stretched state after the magnetic field is turned off.
This material is used in the actuator design along with a reversible magnetic circuit to enable push-pull type actuation.
Advantages include the ability to rapidly actuate up to a kHz frequency range, nanometer actuation precision, high dynamic range, self-position detection, and position maintenance when the device is turned off. Uses include release/restraint mechanisms, fast steering mirrors, and optical pointing devices.
