New multi-rod linear actuator for direct-drive, wide mechanical band pass applications

In this paper, a new multi-rod linear actuator is presented. This actuator has been developed for high thrust density and wide mechanical bandpass applications. The multi-air-gap concept will first be illustrated and explained. Its advantages will be highlighted thanks to finite-element method optimizations. Next, the multi-rod prototype technology will be discussed. Lastly, experimental measurements for prototype forces will be provided.