Industrial IMUs target autonomous machines

November 13, 2017 //By Graham Prophet
Analog Devices (Norwood, MA) has added five high-performance inertial measurement units (IMUs) that address the navigation- and safety-related needs of industrial applications in a range of emerging markets, while also reducing their system complexity and cost.

The ADIS16470, ADIS16475 and ADIS16477 IMUs are small, surface-mount devices spanning a range of performance, cost, and application-suitability needs. The ADIS16465 and ADIS16467 IMUs offer similar performance advantages in a more ruggedized enclosure option.

They offer a new level of performance-for-cost ratio to unmanned aerial vehicle (UAV) applications where consumer-grade sensors have fallen short of ideal performance and have failed to meet reliability goals. These new IMUs bring the same benefits to Autonomous Machine applications in fields such as Smart Agriculture where the demands of such rugged equipment previously forced a choice between cost-challenged, highest-grade sensors or performance-limited commercial sensors.

All of the IMUs provide six degree-of-freedom (DoF) sensing via triple-axis MEMS-based accelerometers and gyroscopes, and are focused on the demands of the Industrial "Internet of Moving Things" and its need for precise geolocation. Their performance allows systems to characterize motion accurately despite turbulence, vibration, wind, temperature, and other environmental disturbances, resulting in more-accurate navigation and guidance, and/or instrument stabilization.

These high-grade sensors reduce or eliminate the need to improve performance via added test, components, calibration, or software measures. The ADIS1646x and ADIS1647x IMUs are specifically designed to reject what are otherwise significant error sources, such as ‘g’-influence, cross-axis sensitivity, and temperature and mechanical stress related drifts.

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