Matt Redmond writes:

Memsic (http://www.memsic.com) makes some single and dual axis
accelerometers.  My coworker has their 2-axis demo board ($25) sitting on
his desk - pretty cool.

I think one limitation of accelerometers in a 3-D environment is that
centrifugal force can play tricks on them.  For example,  in a coordinated
turn in an airplane, you're pulling 1G straight down the yaw axis - your
roll-axis sensor wouldn't register the roll I don' think.

Thanks. Yes, the Memsic evaluation boards are very well priced and cool.

I'm using these devices in a directional drilling application, and surveys
are only taken when the sensor is stationary, so centrifugal forces won't be
an issue, but I'll follow that train for future reference.

--
http://www.piclist.com hint: To leave the PICList
mailto:piclist-unsubscribe-request@mitvma.mit.edu