Magnetic Robots: Small‐Scale Magnetic Actuators with Optimal Six Degrees‐of‐Freedom (Adv. Mater. 23/2021)

Actuators for Active Magnetic Bearings

The literature of active magnetic bearing (AMB) technology dates back to at least 1937 when the earliest work that clearly describes an active magnetic bearing system was published by Jesse Beams [1]. Progress on the technology was modest until the late 1970s, when commercial development began to emerge as, for instance, described by Haberman and Liard in 1977 [2]. The state of the art in 1988 ...

Fluid Micropumps Based on Rotary Magnetic Actuators

A jet-type magnetically driven fluid micropump to drive conductive fluids has been designed, fabricated, and tested. The pump actuation is based on a rotary magnetic micromotor with fully integrated stator and coils operating with the rotor immersed in the fluid to be pumped, thereby driving the fluid from a inlet flow reservoir through integrated flow channels to an outlet flow reservoir. The ...

Magnetic Shape Memory Actuators for Fluidic Applications

Magnetic Shape Memory (MSM) actuators represent a new type of smart electromagnetic actuators where the MSM material elongates and contracts in a magnetic field. The MSM material has the ability to change its size or shape very fast and many million times repeatedly. Based on internally designed and produced Magnetic Shape Memory materials, the ETO GROUP has developed its new MAGNETOSHAPE® tech...

Micromachined Magnetic Actuators Using Electroplated Permalloy

Results on design, fabrication, and testing of silicon micromachined magnetic actuators are presented. Electroplated, low-stress permalloy (Ni80Fe20) material is the medium for magnetic interaction and force generation. The permalloy piece is supported by a structural plate, which consists of polycrystalline silicon thin film prepared by low-pressure chemical vapor deposition (LPCVD). Magnetic ...

Spacecraft attitude control using magnetic actuators