Issue 41 Unmanned Systems Technology December/January 2022 PteroDynamics X-P4 l Sense & avoid l 4Front Robotics Cricket l Autonomous transport l NWFC-1500 fuel cell l DroneX report l OceanScout I Composites I DSEI 2021 report
96 GSML cameras, seven USB I/Os, two HDMI 2.0s, and many more besides, with even higher passive cooling than the Sentry-X thanks to a much larger integrated heat sink,” Callaghan said. The heat sink allows users to activate the AGX’s ‘MAX-N’ mode, a peak performance setting that allows the highest core performance, fully using the system’s capabilities. This can be critical for AI applications across edge computing, object classification, high- traffic obstacle avoidance and more. Fizoptika unveiled the G181, its first ever triple-axis FOG product, which it says is ideal for UAV, gimbal and image stabilisation applications. “Until now, we’ve only ever manufactured single-axis gyroscopes, but over the past year we’ve been developing this three-axis gyro, which is now ready for production,” said Arthur Tua. “We’ve also completed designs for an IMU that uses the new gyro, and we’ll start manufacturing it once the electronics supply chains are sorted out.” The G181 has an angular random walk of 0.015 º / √ h, an input range of 300 º /s, and measures 46 mm in diameter and 111 mm in length. It is available in aluminium or µ-metal (a nickel-iron alloy for magnetic shielding) housings. The company also showcased several of its other latest designs, including its VG191A, a single-axis FOG weighing 30 g (40 g if housed in µ-metal) and giving a dynamic range of 250 º /s as well as a bias stability of 1 º /h. “The VG191A is configured for analogue interfaces; we also provide a VG191AD, which communicates digitally and has a 300 º /s range,” Tua added. Northrop Grumman LITEF unveiled an upcoming new single-axis MEMS gyro called the μCORS (micro Coriolis Rate Sensor), which is aimed at achieving similar performance to single- axis FOGs but with reduced price, power consumption and size. “The system is well-suited to the stabilisation of antennas, radars, optical sensors and other pointed systems, as well as flight control and AHRS applications,” said Kai Dlouhy. “It’s at the prototype stage now, and production will start by the end of 2022.” The μCORS gives a bias in-run stability to 0.5 º /h, a bias repeatability within 1 º /h and an angular random walk within 0.08 º / √ h. It measures 50 x 50 x 25 mm, weighs 80 g, and its peak power consumption is below 2 W, with a data rate output of up to 1024 Hz. Trackwise displayed one of the latest versions of its thin, flexible circuit products currently used in the wings of an unnamed electric aircraft for powering and controlling its flaps and ailerons. “Our flex circuits are only fractions of millimetres thick, and are custom- manufactured with tabs running outwards for plugging into servos as well as the aircraft’s BMS and other onboard systems,” commented Bartholomew Day. Each flexible circuit can incorporate dozens of wires while being just a few millimetres thick and 70-90% the weight of standard wiring harnesses, and their flat shape enables them to flex tightly in their forward axis around enclosures with minimal risk of wear and tear. December/January 2022 | Unmanned Systems Technology Fizoptika’s G181 triple-axis FOG Early sight of the μCORS single-axis MEMS gyro from Northrop Grumman LITEF One of the latest Trackwise flexible circuits
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