Honeywell To Bring Next-Generation Inertial Sensors To Unmanned Vehicles Segment Honeywell, with funding from the U.S. Defense Advanced Research Projects Agency (DARPA), is creating the next generation of inertial sensor technology that will one day be used in both commercial and defense navigation applications. Recently, findings gathered in Honeywell labs have shown the new sensors to be greater than an order of magnitude more accurate than Honeywell's HG1930 inertial measurement unit (IMU) product, a tactical-grade product with more than 150,000 units currently in use. An IMU uses gyroscopes, accelerometers and electronics to give precise rotation and acceleration data to enable a vehicle system to calculate where it is, what direction it is going and at what speed, even when GPS signals aren't available. There are various types of IMUs on the market and some – like the next-generation version currently under development – use sensors based on micro-electromechanical systems (MEMS) technology to precisely measure motion.