b'Left: A laser transmitter, part of a test station for mea-suring accuracy of a lidar pulse. Each of the red circuit boards operates different laser transmitter modules, measuring how much a laser changes or degrades over time. Middle: An Argo test en-gineer assembling the sensor head that sits on top of the lidar systems rotating plat-form. The platform revolves 10 times per second as it sends laser pulses into its environ-ment to create a 3D point cloud of its surroundings. Right: A test station monitor-ing a cylinder that is rotating a dummy mass with the same weight and distribution as the lidar sensor head. FullBook_Mar24.indb 29 4/25/21 6:42 PM'