Zero Point Motion Inertial Measurement Units (ZPM IMU)

Zero Point Motion has built a chip-scale motion sensor that is 100 times less noisy than existing commercial alternatives, using laser light to detect movement with unprecedented precision. Today’s inertial sensors—the tiny chips that tell a drone which way is up or a phone when you’ve turned—accumulate errors over time. This drift makes them useless for GPS-free navigation after a few minutes, and limits their accuracy to centimetres at best. ZPM’s sensors, based on cavity optomechanics, reduce that noise by a factor of 100, meaning errors build up more than five times slower. This closes a long-standing gap between laboratory-grade performance and mass-market affordability. If the technology succeeds, drones could navigate autonomously in GPS-denied environments such as underground tunnels or inside buildings. Augmented and virtual reality headsets could track head and hand movements with sub-millimetre precision, making virtual objects feel physically stable. More broadly, any system that relies on dead reckoning—robots, autonomous vehicles, or indoor navigation apps—could operate far longer without external reference signals, quietly improving the reliability of infrastructure that most people never think about.