I was reading these threads about seismographs: http://sydney.edu.au/science/uniserve_science/school/Seismograph/detector/index.html#sept http://arduino.cc/forum/index.php/topic,56217.0.html . The stages are: sensor (pendulum, gyroscope, etc) => preamp => analog to digital converter => computer W…

Preamps vs Analog to Digital Converter

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