06 September 2011
Gyroscope will make cars safer says ADI
Analog Devices has unveiled an iMEMs gyroscope that it claims provides unmatched shock and vibration immunity for automotive applications.
The ADXRS800 features a patented differential quad beam architecture designed to minimise the influence of linear shock and vibration. According to the company, as well as being the most stable automotive grade gyro available, a continuous electromechanical self test feature ensures the integrity of its output signal.
ADI claims that, unlike alternative MEMS gyros, the ADXRS800's architecture enables accurate performance in harsh automotive environments without the need for system level counter measures. Sensitivity to linear acceleration is specified at 0.03°/sec/g, vibration rectification is 0.0002°/sec/g2, noise rate density is 0.02°/sec/vHz at 105°C and null offset variation is 3°/s maximum over temperature and product life.
The company adds that the gyro delivers better offset stability compared to alternatives without the need for calibration, and power consumption is 6mA under typical conditions.
"A stability control system needs accurate inertial signals at all times, especially when harsh vibrations and shocks are present," said Thomas Wessel, vice president, Automotive, Analog Devices. "Safety critical auto applications like this benefit greatly from the ADXRS800's vibration immunity. The continuous self test feature is also key to realising fail safe system performance according to the highest industry standards. The innovations that this part delivers will make cars safer."
Author
Chris Shaw
Supporting Information
Websites
http://www.analog.com/pr/ADXRS800
Companies
Analog Devices
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