INERTIAL NAVIGATION SENSORS
Digital MEMS accelerometers and gyros
Precision acceleration and angular rate measurement for inertial navigation
Tronics is the only manufacturer of high-performance MEMS inertial sensors that provides both closed-loop accelerometers and gyros with a digital interface and SMD package. Our tactical-grade digital acceleration and angular rate sensors have a small form factor and low power consumption, making them a cost-effective alternative to analog quartz accelerometers and Fiber Optic Gyros (FOG).
Inertial MEMS accelerometer:
Discover AXO®315
AXO®315 is a high performance, closed-loop, single-axis in-plane digital MEMS accelerometer which offers a lower cost alternative to quartz accelerometers at a fraction of their size, weight and power consumption. Its hermetic SMD package combined with its 24 bits SPI interface eases its integration and reduces the BOM.
With a 1 year composite bias repeatability of 1 mg under demanding temperature and vibrations conditions, the AXO®315 overpasses all commercially available MEMS accelerometers and is a perfect candidate for integration into high performance Inertial Measurement Units (IMU) and Inertial Navigation Systems (INS).
Inertial MEMS gyro:
Discover GYPRO®4300
The GYPRO®4300 is a high performance, closed-loop digital MEMS gyroscope with ± 300 °/s input range that offers a lower cost alternative to entry-level Fiber-Optic Gyroscopes (FOG) at a fraction of their size, weight and power consumption. It features a hermetic SMD ceramic package and a 24 bits SPI interface that ease its integration and reduce the BOM.
Its superior bias instability of 0.4°/h make GYPRO® 4300 an industry-leading MEMS sensor to build high performance IMU (Inertial Measurement Units) for attitude and motion control systems, as well as INS (Inertial Navigation Systems) for GNSS-aided positioning and navigation in dynamic applications
Key performances
- ±14 g range, single-axis in-plane accelerometer
- 1 year composite bias repeatability: 1 mg
- 1 year composite scale factor repeatability: 600 ppm
- Vibration rejection: 20 μg/g²
- Noise: 15 μg/√Hz
- Temperature range: -55°C to +105°C
Key performances
- ± 300 °/s range, single-axis gyroscope
- Bias instability: 0.4 °/h (typ), 2°/h (max)
- Angular Random Walk: 0.07 °/√hr
- Vibration rejection: 0.5 °/h/g²
- Residual scale factor over temperature range: 160 ppm
- Latency: ≤ 1 ms
- Mean Time Between Failure (MTBF): > 1 000 000 hours
- Available in 3 resonent frequency configurations to minimize mechanical cross-coupling in multi-axis applications
Key features
- 24-bit digital SPI interface
- Initial and continuous self-test
- Factory-calibrated over temperature
- Closed-loop architecture for best-in class vibration rejection and linearity
- Hermetic ceramic SMD package
- Non classified under dual-use export control
- REACH and RoHS compliant
Key applications
- INS (Inertial Navigation System) for GNSS-assisted positioning and navigation of ground vehicles & trains
- AHRS (Attitude & Heading Reference System)
- MRU (Motion Reference Units)
- IMU for precision robotics and remotely operated vehicles
- Test instrumentation
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