Highly stable digital MEMS gyroscope for dynamic applications

Highly stable digital MEMS gyroscope for dynamic applications

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TDK Corp. introduces the Tronics Gypro4300, a highly stable and vibration-resistant digital MEMS gyroscope for dynamic applications. The gyro is also ideally equipped for use in vehicles.

The Tronics Gypro4300 features an input measurement range of ±300 °/s, a bandwidth of 200 Hz and a latency of 1 ms, and has a closed-loop architecture that ensures high linearity and stability in dynamic environments. The Gypro4300 is the first product in the new Gypro4000 high-performance MEMS digital gyroscope platform, which complements the AXO300 digital closed-loop accelerometer platform.

With an excellent bias instability of only 0.5 °/h as a typical value (2 °/h maximum) and an ARW (Angular Random Walk) of 0.1 °/√h, the Gypro4300 offers a miniaturised, digital MEMS high-performance gyroscope with a low SWaP (Size, Weight and Power) value, paving the way for a new generation of high-precision positioning, navigation and stabilisation functions in dynamic applications such as rail vehicles, land vehicles, VTOL (Vertical Take-Off and Landing) aircraft and UAV (Unmanned Aerial Vehicles), marine and underwater systems, drilling and surveying instruments.

Compact, robust gyroscope for use in high-vibration environments

The Gypro4300’s closed-loop architecture provides high vibration damping of 0.5 °/h/g² in harsh conditions. The gyroscopes are housed in a hermetically sealed, ceramic J-lead miniature enclosure that offers long operating and storage life, as well as high compliance with the stringent temperature cycling requirements of critical applications. They feature hard-coded electronics with a 24-bit SPI digital interface for rapid integration into INS (Inertial Navigation Systems), IMU (Inertial Measurement Units) and AHRS (Attitude and Heading Reference Systems). To minimize mechanical coupling in multi-axis applications, the Gypro4300 is available for three frequency ranges.

Thanks to its miniature package and low power consumption, Gypro4300 offers a digital, low-cost and low-power alternative to bulky, expensive and power-hungry solutions such as DTG (Dynamically Tuned Gyros) and FOG (Fiber Optical Gyroscopes). Thanks to its solid-state architecture, which reduces the number of internal components and system complexity, the Gypro4300 has an MTBF of more than 1,000,000 hours, which is ten times more than established DTG and FOG solutions with similar performance. In addition, the built-in self-test provides both an initial check of the sensor’s integrity and a continuous functional test during operation.

The Tronics Gypro4300 gyros are ideally complemented by the AXO300 high-performance digital accelerometers, which use the same SMD J-lead ceramic package and digital interface to enable cost-effective integration, mounting and board reliability, even in rapidly changing temperature conditions.

The Gypro4300 is available for sample and customer evaluation directly from Tronics or through specialised distribution channels such as TEXIM in Europe. Rapid evaluation of the sensors can also be done with an Arduino-based evaluation kit that offers built-in test functions such as reading and recording outputs, recalibration and digital self-testing.

more information: www.tdk.com

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Mike is the founder and editor of Electronics-Lab.com, an electronics engineering community/news and project sharing platform. He studied Electronics and Physics and enjoys everything that has moving electrons and fun. His interests lying on solar cells, microcontrollers and switchmode power supplies. Feel free to reach him for feedback, random tips or just to say hello :-)

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