Halbach magnets are a source of homogeneous magnetic field in an enclosed volume while keeping stray fields at minimum. Here, we present the design, construction, and characterization for stack two rings with 10 cm inner diameter providing (<100 ppm over 1.0×1.0×0.5cm3) around 105 mT, which will be used diamond based microwave-free widefield imaging setup. The final is performed novel fiberized...

Permanent magnet wall-climbing robots are widely used in the maintenance of tanks petrochemical industry and overhaul large-pressure pipelines hydropower industry. One difficulties is to achieve safe reliable adsorption robots. Based on Halbach array, a double-layer superposition magnetic circuit magnetization method designed this paper. Under same constraints, force permanent chuck increased b...

This paper proposes a design methodology for linear actuators, considering thermal and electromagnetic coupling with geometrical and temperature constraints, that maximizes force density and minimizes force ripple. The method allows defining an actuator for given specifications in a step-by-step way so that requirements are met and the temperature within the device is maintained under or equal ...

While electrical machine designers typically go to great lengths choose the optimal number of stator slots based on electromagnetic performance, often thermal aspects this selection are overlooked. This article investigates multi-domain impacts related slot selection, combining both and aspects. Taking an existing 42-kW 4-pole, 12-slot with Halbach-array surface-PM rotor, used within a more-ele...

When a magnetic bearing is used in the design of high-speed motor, no friction and wear occur because principle levitation; however, size entire system increases. An integrated motor with inserted inside rotor that can minimize increase system. In this study, method to reduce force ripple torque an through parameters for Halbach array permanent magnet tapering proposed. designing located rotor,...

In order to find a highly efficient, environment-friendly magnetic refrigerant, direct measurements of the adiabatic temperature change $\Delta T_{adb}$ is required. Here, in this work, simple setup for measurement presented. Using permanent magnet Halbach array with maximum field $1.8$ T and rate $5$ T/s, accurate determination possible system. The operating range system from $100$ K $400$ K, ...

This paper firstly explains how the stator slot PM (SSPM) machines have evolved from conventional flux reversal (FRPMs), by placing magnets over tooth tips or between tips. The influence of and configurations five types SSPM with various structures in slots, two three without tips, on electromagnetic performance are then investigated compared. It shows that, no matter what winding (non-overlapp...

The paper deals with the design and optimization of a novel magnetic switchable device based on Halbach array. The magnetic field in air gap is adjustable by rotating the center axis of adhesion mechanism so that the magnetic adhesion force is variable, and it is convenient for device to adsorb on and detach from the ferromagnetic workpiece or surface. The magnetic field model is established by...