High Performance MEMS Accelerometers & Gyros
Railway Applications
Inertial sensors are part of the multiple sensing technologies that can be found inside a train or on the trackside infrastructure to ensure a high quality of service. Thanks to their high level of stability under shocks and vibrations, Tronics’ high-performance MEMS accelerometers and gyros enable advanced railway applications such as GNSS-assisted navigation, odometry, train localization and positioning, acceleration, and inclination measurement, as well as infrastructure monitoring.
Discover AXO®301
High resolution ±1 g MEMS accelerometer
Compliant with EN61373 railway standard for shocks & vibrations
Discover AXO®305
High performance ±5 g MEMS accelerometer
Discover GYPRO®4300
High stability ±300 °/s digital gyroscope
High stability MEMS inertial sensors for train localization
For train positioning, odometry and navigation systems, Tronics’s high precision MEMS inertial accelerometers and gyros are assembled into a compact IMU (Inertial Measurement Unit) or INS (Inertial Navigation System). Fusion algorithms combines inertial data with other information, like GNSS signal, wheel sensors, LIDAR, etc, to provide the train position with a high level of accuracy.
Tronics AXO®305 ±5 g accelerometer demonstrates a 1 mg composite bias for high precision train positioning. It is ideally complemented by GYPRO®4300, a high stability 300 °/s rate gyro that exhibits an ARW of 0.07 °/√h and a bias instability of 0.4 °/h.
Their fully digital architecture with 24-bit SPI output removes the need for discrete components on the PCB and drastically simplifies their integration at system-level.
High resolution MEMS accelerometer for train acceleration and tilt measurement
Measuring acceleration or inclination with high precision is key to maximize passenger comfort and keep the train in nominal safety conditions. Thanks to its 50 g resolution, Tronics’ AXO301 ±1 g MEMS accelerometer enables precise tilt and acceleration/deceleration measurement. It is compliant with EN61373 railway standard for vibrations and shocks (mounting on train axles).
Precision sensors for infrastructure monitoring
Thanks to their high stability and resolution, Tronics’ AXO MEMS accelerometers and GYPRO MEMS gyros provide a digital, low-SWaP and performance-equivalent alternative to analog quartz accelerometers and Fiber Optic Gyros (FOG) for integration into precise infrastructure monitoring and Track Geometry Measurement Systems (TGMS).
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