Underwater Electromagnetic Actuator
Designed a fully constrained SolidWorks assembly for an underwater electromagnetic rotary actuator based on Ampère-force torque generation. Integrated magnets, coil, bearings, and waterproof interfaces while applying parametric control of magnet–coil spacing (±0.2 mm tolerance). The model directly translated electromagnetic theory into manufacturable mechanical geometry.
The video demonstrates controlled rotational motion generated purely by electromagnetic torque. An embedded drive and sensing system (Arduino, encoder, load cell, current sensing) enabled real-time feedback and repeatable actuation. Experimental torque–angle–current data were used to validate and calibrate the mathematical model.
Structural components were fabricated using FDM 3D printing and assembled with coated magnets and sealed bearings for submerged testing. The modular design allowed rapid geometric iteration and reliable experimental validation of multiple configurations.