Magnetohydrodynamic inertial actuator

Centre National d'Etudes Spatiales CNES - 10/17/2016

Description

Inertia wheel with reduced dimension, high precision, virtually unlimited lifetime.

Benefits

Improved performance - High precision pointing device - Efficient kinetic moment
, high energy efficiency
 - Lower cost Virtually unlimited life - Reduced maintenance and very-low risk of breakage Optimized payload - Reduced weight and bulk

Innovations

Innovative technology - No hysteresis torque near zero speed - No material shaft - MHD motor using permanent magnet - PWM type power supply - Compact and reversible power A simple and efficient system - No wear part - Few mechanical components - Viscous damping type - Low micro-vibration level - Weight is mainly located towards the larger diameter and high energy efficiency

Sheet PDF