Project M is a proposed project to land an operational humanoid robot on the moon in 1000 days (M is the Roman numeral for 1000). The humanoid (called a Robonaut) will travel to the moon on a small lander fueled by green propellants, liquid methane and liquid oxygen. It will perform a precision, autonomous landing, avoiding any hazards or obstacles on the surface. Upon landing, the robot will deploy and walk on the surface performing a multitude of tasks focused on demonstrating engineering tasks such as maintenance and construction; performing science of opportunity (i.e. using existing sensors on the robot or small science instruments); and simple student experiments.
As with most autonomous vehicle projects, the NASA RR-1 Lander requires many sensors to fully control its flight. Design engineers contacted Acuity for a solution to measure the altitude of their RR-1 Lander. The AR3000 Distance Sensor was proposed to measure the real-time height of the vehicle to 300 meters above the ground at high sampling speeds.