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SEISMOGRAPH AMPLIFIER PHOTOS

Seismograph Pre-amplifier design:
Updated on October 3, 2013.


Pre-amplifier circuit design updated on October 3, 2013.

WE BUILT A 2nd UNIT NOVEMBER 7, 2013. HERE ARE THE PHOTOS OF THE INSIDE.

This one will be connected to an AF6T-0.1H-1K-BC-EB antenna buried in a vertical case. The antenna will be covered (90 percent) with fine dry sand inside the case so it will not move except when the ground moves during a locally felt earthquake. This allows detection of the actual wideband waveforms of an earthquake. The magnetic field for the sensing source is supplied by the Earth's natural 0.5 gauss magnetic field.


Pre-amplifier November 7, 2013.


Pre-amplifier November 7, 2013.


Pre-amplifier November 7, 2013.


Pre-amplifier November 7, 2013.

VIEW ALL EARTHQUAKES RECORDED WITH THE ANTENNAS