This is a quick demo of how we vibration-test our next-gen autopilots at 3D Robotics labs. Two big bass speakers are programmed to generate vibrations at a range of frequencies, and the autopilots are mounted on a structure that's driven by them in two dimensions. We then measure the output from the autopilots to look for aliasing and harmonics, which helps us design the internal vibration-insulating foam, brass masses around the sensors, physical shape and software filters.
This particular setup compares two autopilot modules with different vibration-damping, each with two redundant sensor packages. The aim is to design the vibration-damping so that all the normal vibrations from motors and props are handled well.