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Dave's Circuits
Circuits designed by David Johnson, P.E.

Master Category List - Dave's Circuits
 Last Updated on: Friday, August 29, 2008 02:35 PM


Geophones    Motion Detectors 

Home Made Geophone Detects Foot Stomp
A home made geophone is made from a strong magnet, a coil of wire and a rubber band. The circuit is sensitive enough to detect the vibrations of a nearby foot stomp.  It could be used as an earthquake detector.

Click on Drawing Below to view PDF version of Schematic

Circuit Geophone Foot Stomp Detector designed by Dave Johnson, P.E.

Geophones    Motion Detectors 
Master Schematic Category List - David A. Johnson, P.E.
 

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