LSM303 - single proof mass?

[trung]

Posted on May 07, 2015 at 04:07

I'm a researcher at the University of Sydney using an

http://www.adafruit.com/product/1604

to create a prototype measuring instrument. My background is in Civil engineering, so I'm not too versed in electronics.

To help evaluate the performance of the instrument, I need to know whether its 3-axis accelerometer (LSM303) is comprised of 3 separate single-axis accelerometers, or if the sensing is done with a single proof mass. It would be great to have a citeable source for this information also.

This kind of information is available in this

http://www.st.com/web/en/resource/technical/document/technical_article/DM00034730.pdf

for gyroscopes but I haven't been able to find a similar article for STM accelerometers.