Seismometers for Schools and Others on a Budget!

Seismometer Assembly

TC1 Seismometer Sensor Assembly Instructions


Remove sensor components from box. Remove top ABS cap containing spring. Hook eyebolt containing magnets over bottom of spring.


Insert and lower the magnet assembly into top opening of acrylic tube. Ensure ABS cap sits snugly on tube, but do not force it or damage tube. Position magnet assembly inside white coil and copper damper. Top of magnet assembly should be even with top of white coil body. One magnetic pole should be inside coil body and one magnetic pole outside.



Damper magnet height should be about even or ¼” higher than top of copper damper tube. Heights are set before shipping, but if correction needed, turn magnets and nuts up or down eyebolt.


Use three adjusting legs on base (at right) to center magnets

like a bulls eye inside coil (A) and damper (B), with equal free space all around. Magnets must not touch inner walls, or

sensor will appear to be working but will never record an earthquake. Periodically, ensure everything is still centered. Spring can stretch or turn over time, so corrections may be needed.

A B




Plug sensor RCA cable into BSUdaq amplifier box; plug USB cable from BSUdaq amplifier box into computer.

Load three software programs onto computer:

AmaSeis: http://pods.binghamton.edu/~ajones/AmaSeis.html

Winquake: http://psn.quake.net/software.html#WinQuake

Arduino: http://arduino.cc/en/Guide/Windows

Set up email account to receive USGS earthquake notifications: http://earthquake.usgs.gov/

At left under the heading, Latest Earthquakes, click on Subscribe Earthquake Notification Service and follow directions for setting up an account.

For questions contact: tchannel@cableone.net or  mailto:ssis@cgiss.boisestate.edu/

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