Angular rate sensor

  • 15-Feb-2010 01:33 EST
MEMS_IMU press release photo.JPG

The Tamagawa Seiki MEMS (microelectromechanical systems) gyro yaw rate sensor distributed by AdvanTech International uses LiNbO3 to achieve high resolution and high stability under the harshest environments. Available separately or as a small three-axis, prepackaged inertial measurement unit, this technology minimizes vibration and withstands operating temperatures to 125°C (257°F). Applications include electronic stability control, navigation, parking assist, intelligent cruise control, precrash safety systems, adaptive headlamps, airbags, and rollover protection. The LiNbO3-based piezoelectric sensor delivers both a high response speed and a large force with a small circuit size as compared to capacitive, electromagnetic, or thermal MEMS sensors. The key properties of the LN crystal enhance the following characteristics in the sensor: chemical stability/resistance, temperature stability (high Curie temperature), high electromechanical coupling constant, high Q-value, and lead-free.

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