MEMS Inertial Sensor Solutions, IMUs, Gyroscopes and MEMS Accelerometers for Unmanned Vehicles

Upgraded Inertial Sensors Released for Marine Applications

By Mike Ball / 06 Oct 2021

Silicon Sensing marine inertial systems

Silicon Sensing has confirmed that it will be introducing new MEMS-based inertial sensors at the Ocean Business 2021 exhibition. These new products include the company’s highest-performing silicon MEMS IMU (inertial measurement unit), and new compact gyros.

The DMU41 is a non-ITAR, high-performance IMU measuring just 50x50x50mm and weighing less than 200g. It has 54% lower volume and is 42% lighter than its predecessor, the DMU30, and also consumes significantly less power. These significant decreases in scale and power consumption combine with a performance that competes directly with heavier, larger, and more costly fibre optic gyro (FOG)-based products. The DMU41 provides ultra-precise motion sensing for marine applications such as UUV (unmanned underwater vehicle) and AUV (autonomous underwater vehicle) control and navigation, as well as precision surveying and mapping.

The CRH03 is a new compact stand-alone single axis gyro for maritime platform stabilization, guidance and control and precision surveying. Also non-ITAR restricted, the CRH03 consumes 30% less power than its predecessor the CRH02, and incorporates enhancements including new drive electronics and improvements to the sensor head. The gyro is highly tolerant to external vibration and delivers comparable bias characteristics to FOG and DTG (dynamically tuned gyros). It is available in five rate ranges, including a new option of 10 degrees per second.

The CRS39A gyro, designed for use in the harshest of environments, is an upgrade to the established CRS39 unit, reducing volume by 40% by moving from two boards to a single board. This makes it easily installed in space-limited applications. Upgraded MEMS and electronics have also delivered notable performance enhancements in bias instability, angle random walk and noise and vibration tolerance. Multiple on-board temperature sensors allow the gyro’s performance to be specifically tuned to the conditions found in extreme operating environments.

Steve Capers, General Manager of Silicon Sensing, commented: “Our engineering team has worked hard to develop these important new non-ITAR products, and we are proud to introduce them to the market at Ocean Business. Each offers critical new choices for operators in the marine sector, where there is a constant drive for better and more sustained performance even in the most severe surface and subsurface conditions. We look forward to showcasing these, and our full range of inertial sensors and systems, to current and future customers at the show.”

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Posted by Mike Ball Mike Ball is our resident technical editor here at Unmanned Systems Technology. Combining his passion for teaching, advanced engineering and all things unmanned, Mike keeps a watchful eye over everything related to the unmanned technical sector. With over 10 years’ experience in the unmanned field and a degree in engineering, Mike’s been heading up our technical team here for the last 8 years. Connect & Contact