>But what on Earth is a "piezo gyro"? Probably something along the lines of the devices described at the link below - a "solid state" gyro made from micromachined silicon. It doesn't actually spin, it vibrates a little like a bell, but is able to detect rotation and thus is able to tell a correction system how to counteract it.
http://www.siliconsensing.com/rscience/how.htm It's also used in the Segway stabilisation mechanism. Rob ******************************************************************** This email and any attachments are confidential to the intended recipient and may also be privileged. If you are not the intended recipient please delete it from your system and notify the sender. You should not copy it or use it for any purpose nor disclose or distribute its contents to any other person. ********************************************************************

