Motion Sensor Researchers use high-speed motion sensor OptiTrack cameras mounted around the test area to monitor the mechatronic arm exoskeleton's effect on simulated shooting. Army photo by Doug LaFon SHARE: Download: Full Size (0.95 MB) Tags: laboratory, apg, materials science, arl, dan baechle, maxfas, exoskeleton, carbon fiber, sciences-for-lethality and protection, human sciences, u.s. army research Credit: Doug LaFon VIRIN: 150702-A-ZZ999-999.JPG Photo Gallery