OpenIMU335RI for high performance inertial measurement

It delivers increased performance in key acceleration and gyro specifications. The OpenIMU335RI delivers best in class performance, including 1.3^o per hour bias instability (BI) and 0.1 ^o per root hour Angle Random Walk, making it ideal for 3DMG (3 Dimensional Machine Guidance), 3DMC (3 Dimensional Machine Control) and other applications requiring high performance inertial measurements.

ACEINNA’S OpenIMU335RI, and all ACEINNA’s Gen 3 products, are triple redundant - consisting of three independent 3-Axis Accelerometers and 3-Axis Gyros. The redundancy in ACEINNA’s Gen 3 products provides increased performance in key acceleration and rate sensor characteristics, and increased reliability and equipment uptime in the field. ACEINNA has implemented a proprietary algorithm that detects a failing sensor and automatically and seamlessly eliminates it from the solution, allowing equipment to continue normal operation using the remaining sensors.

OpenIMU335RI is packaged in a rugged sealed housing with an Ampseal 16, six position connector. It includes CAN J1939 and RS232 interfaces for network connectivity. The miniature housing is formed using an over-molding process delivering a completely sealed solution which prevents any possible water ingress and is durable under tough environmental conditions. It is specified to work from an unregulated nine to 32V supply and is fully qualified for use in 12 and 24V vehicle systems. A 3D magnetic field sensor is available as an option for applications requiring 9-DOF IMUs.

“This new IMU adds to ACEINNA’s successful line of 6 and 9-DOF IMUs and provides even higher performance for designs that need it,” said Michael DiGangi, Executive VP of ACEINNA. “It is the same size and has the same electrical interface as our popular OpenIMU300RI and MTLT305D sensors, giving existing customer an upgrade path to higher performance without redesign.”

The OpenIMU335RI uses a powerful ARM M4 CPU with a Floating Point Unit. The OpenIMU335RI module runs the OpenIMU open-source stack that includes an optimised full-state Kalman Filter for Attitude and GPS-Aided Position-Velocity-Time (PVT) measurement. For developers, the open-source environment allows for algorithm optimisation for specific vehicle or application dynamics and custom messaging. A free development tool-chain based on Microsoft VS Code supports PC, MAC, and Ubuntu. Data logging and visualisation are supported with ACEINNA Navigation Studio, a free web based graphical user interface.

The new OpenIMU335RI is available for purchase from the ACEINNA directly as well as from our network of worldwide distribution partners.