Product category:
Rotary Position, Tilt and Angular Sensors
News Release from: Systron Donner Automotive | Subject: Systron Donner Automotive MicroGyro
Edited by the Engineeringtalk Editorial
Team on 19 April 2007
Angular rate sensor uses piezoelectric
quartz
Pure piezoelectric crystalline quartz exhibits excellent stability over time, maintaining sensor specifications from the day it is installed.
The Systron Donner Automotive MicroGyro angular-rate sensor - the enabling technology behind the most sophisticated active vehicle safety systems - uses piezoelectric quartz for its MEMS tuning-fork sensing element Being nearly a perfect elastic material, pure piezoelectric crystalline quartz exhibits excellent stability over time, maintaining the sensor's specifications from the day it was installed
This article was originally published on Engineeringtalk on 22 Mar 2007 at 8.00am (UK)
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There are no stiction issues between the moving MEMS element and the stationary elements of the MicroGyro.
The quartz sensing-element high Q does not require a costly vacuum or extreme sealing requirements for operation.
In fact, Systron Donner Automotive leak tests 100% of production parts to ensure survival in the field for more than 10 years.
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The SPI digital output is fully calibrated at the factory, saving the customer the need (and expense) of complex hardware- and software-based compensation schemes.
Additional axes of sensing are achieved by simply adding another MicroGyro.
No daughterboard is required.
The MicroGyro is built to perform even during high-G loads.
Continuous Built-In Test technology provides true continuous monitoring of sensor health and simultaneous rate sensing, ensuring the MicroGyro's performance at all times.
The MicroGyro employs 20 additional self-monitors, adding even more fault detection.
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