Geophones/accelerometers/geosensors/vibration pick-ups

cedric.peyronnet_at_unilim.fr
Date: 12/06/04 

Date: 6 Dec 2004 04:11:22 -0800

Hi,

(Automatic translation from french)

I am searching informations concerning geophones / accelerometers /
geosensors / vibration pick-ups...
It acts in my case, of applications to the field of the AUDIO, having
for goal the recording of audio signals in the frequency band 10Hz ~
250 Hz.

My concern is to be able to collect as well as possible these
frequencies by contact (metal structures for example).

At present, I use simple piezo, but their sensitivity to this range
remains very weak even null (Some ideas to improve them accordingly?).

I thus direct myself towards the use of
geophones/accelerometers/"geosensors" which are intended for the very
low frequencies.

I seek experience feedbacks, advices in the field of AUDIO (Products,
DIY, contacts, etc).

Thanks

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