>    Please share your opinions on the Analog Devices
>    accellerometers. Are these good enough to provide
>    useful srong motion data in large arrays? Or are
>    they really only suited to emergency switching?



Doug,
It depends on what exactly you want to record. Your geophones should be
good for most local events up to the point of felt shaking. The Analog
Devices accelerometers overlap this a little bit and would then be good up
to the point of total destruction.  I can't find the reference just now but
I think I read that the recent quake in Turkey had accelerations of up to
0.3 G. That and much weaker are within the capabilities of the Analog
Devices parts.

Jim Hannon



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