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![](https://cedrat-technologies.com/wp-content/uploads/2023/04/Actuator2004_P25_Micromotor_based_on_film_permanent_magnets-5.jpg)
Micromotor based on film permanent magnets
19 June 2023
A design of a single phase step micro motor is presented. The rotor has been optimised to induce the greatest magnetic energy using film permanent magnets. A special study has been performed to select the most advantageous magnetisation direction and the structure has been chosen taking into account micro technologies characteristics and the present know-how available for realisation of prototypes. A scale 2 prototype has already been realised. Its special air gap tuning for film magnet test is presented, as well as first torque measurements.