DSEI 2023 | Show report reduces bias from 3o/hour to 1o/hour and has a magnetic response from 4o/hour/ Gauss to 0.1o/hour/Gauss. Reventec spoke with us about its newest fuel and oil-level sensors, which it showcased at DSEI with defence and security integrators in mind. The first was the LSM600-Heavy, which is ruggedised and comes in a contoured version to integrate into tanks with angled top plates – a way of increasing volume in the tank while maintaining access to the plate and insulation. “These are variations on the standardised capacitive level sensors we’ve supplied to motorsport for years, but they’ve been ruggedised for military environments, to make them more heavy-duty for UGVs in particular,” said Jack Birmingham. The LSM600-Heavy measures fluid levels accurate to ±0.5% and can be manufactured from stainless steel with IP69K-rated protection, to enable for instance jet-washing or steamcleaning, or salt water protection with 316 stainless steel. Hard-anodised aluminium is also available. Reventec also showed us its LSM100Micro, which is designed to be the company’s lightest level sensor yet, to meet the UAV market’s (and similar) requirements on weight reduction. To achieve this, lighter construction materials and components have been implemented. The exact weight will depend on the fuel tank and UAV integration case, but the company estimates it is 30% lighter than its next-lightest product. “All our electronics have been rated to EMC standards under Mil-Std 461F; we’re also getting a lot of interest in retrofitting discontinued fuel level sensors thanks to our ability to customise new units to fit into existing platforms and footprints,” Birmingham added. Rajant showcased its Peregrine series of BreadCrumbs, which it offers as quad transceiver, industrial-grade mesh platforms with a 2 x 2 MIMO interface and compatibility with 2.4 or 5 GHz among other frequencies, across military, licenced, public service and proprietary bands. “Peregrine units have been used in oil facilities, ports, military fixed sites, mines and other locations where persistent actionable information is needed in real time but where point-to-point communication is challenging, so they can create effective LOS connectivity from uncrewed vehicle to soldier, to command post,” Robert Castillo said. The Peregrine can achieve data rates of up to 2.3 Gbit/s over its four transceivers, each of which is capable individually of up to 866.7 Mbit/s and consumes 10 W in standard operations, up to a maximum of 34 W over a 48 V input. The system weighs 2946 g, measures 265 x 254 x 46 mm and is designed with an enclosure rated to IP67 protection, as well as USB and Ethernet connectivity. Rajant also discussed its DX2, a 123 g radio that consumes 2.8 W in normal operations and has a maximum data rate of 300 Mbit/s. It is designed as a smaller, single-channel system for UAVs with tighter SWaP budgets, which nonetheless might see use in mesh networks. Maxtena disclosed its development of the M10HCT-TNC helical antenna, which is designed as a tactical-grade GNSS antenna for L1, L2 and L5 navigation satellite constellations. It is aimed at high-precision and multifrequency autonomous operations, and is powered by the company’s patented HeliCore technology. The solution is ground-plane independent and has been optimised for low power consumption and minimal phase-centre variation over azimuth, 103 Uncrewed Systems Technology | December/January 2024 Reventec’s LSM600-Heavy fuel/oil level sensor Rajant’s DX2 for mesh networks
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