DrDaq Earthquake sensor

Post any suggestions about sensors to be used with the DrDAQ here
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17Tui011

DrDaq Earthquake sensor

Post by 17Tui011 » Sun Mar 13, 2011 11:35 pm

Are there any information on making, or buying, a low cost earthquake sensor I could use with my DrDaq?
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targetpin
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Joined: Thu Jul 05, 2012 8:13 am

Re: DrDaq Earthquake sensor

Post by targetpin » Thu Jul 05, 2012 8:20 am

Only one I have seen is in a radioshack book. It was a long tube (3 feet) with a suspended magnet over a hall sensor. Tube was screwed to the bed rock and I think the magnet has to be heavy to avoide being effected by the earth's magnetic field.
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alain
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Joined: Sun Jan 27, 2013 8:37 pm

Re: DrDaq Earthquake sensor

Post by alain » Sun Jan 27, 2013 8:44 pm

I use piezo electric transducer connected to the scope input of DrDAQ. You can also connect the piezo transducer to your computer (line in or micro input) and use Audacity (for example). I can give you more details for the second solution (in french but with full pictures). Sorry, I don't speack english very well :(
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alain
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Re: DrDaq Earthquake sensor

Post by alain » Wed Jun 19, 2013 1:04 pm

I use the USB DrDAQ to measure "seismic waves" and simultaneously measure the stresses acting on the "fault". You will find all the details here (in french, sorry!) : https://sites.google.com/site/desideesp ... ontraintes
You have to download the pdf file named "enregistrer les contraintes et les ondes"
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