Reliably to the finish line

In these areas, the GNSS signal is briefly shadowed and is therefore no longer available for position determination. With the help of the new high-precision MEMS angular rate sensors ASC 281 (uniaxial) and 283 (triaxial), vehicle navigation can be temporarily supported until the GNSS signal is available again. The ASC 281/283 gyroscope is a further development of the proven ASC 271 and 273 sensors, which among other things have been used very successfully for years for ride comfort and vehicle dynamics tests in various industrial sectors. In the new ASC 281/283 angular rate sensor, the already high bias stability of the ASC 271/273 has been increased by a factor of 75 (from 9.0°/h to now 0.12°/h) and the angular random walk has been further reduced (from 0.2 °/√h to now 0.017°/√h). Due to this high precision, the sensors meet particularly high requirements (Tactical Grade) with regard to the maximum achievable accuracy, which is otherwise only achieved by fiber optic gyroscopes (FOG).

The heart of the angular rate sensors are sensor elements that are based on robust MEMS vibration ring elements and offer a measuring range of ±100°/s or ±200°/s. Due to the design of the micromechanical silicon structures as well as the integration in reliable aluminum housings with IP67 protection class, both the ASC 281 and the ASC 283 are extremely insensitive to external shocks and vibrations. They are therefore ideal for use in harsh environmental conditionsThe

excellent temperature and long-term stability of the bias and scaling factor enable very accurate and reproducible angular velocity measurements in numerous applications. In addition to trains and autonomous or remote-controlled vehicles, possible application examples include AHRS (Attitude Heading Reference System), platform stabilization and ship orientation using gyrocompasses.