On 5/4/2012 10:24 AM, andy pugh wrote: > On 3 May 2012 11:27, andy pugh<bodge...@gmail.com> wrote: > >> Accelerometers are not especially expensive. > Thinking about it, in the context of a machine tool a strain gauge > applied to the frame would tell you all you need to know, and they are > very cheap. Other uses would include measurement of cutting forces and > frame deflection. > > http://uk.rs-online.com/web/p/strain-gauges/0632180/ > It's getting a bit long in the tooth, but this 1989 survey of sensor options may still be useful http://www.dtic.mil/cgi-bin/GetTRDoc?AD=ADA220405
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