A simple earthquake seismograph - seismometer, EMF coil - magnet pickup sensor

This is only a demonstration of a simple coil - magnet sensor for a seismograph earthquake seismometer.
It can easily replace fixed size alnico "U" shaped magnets for the available coil on hand; with the correct size of the magnets themselves being predetermined
by the diameter of the coil. The thickness of the coil is easily adjusted for by simply spacing the magnets apart while leaving some air space on either side of the coil itself for motion movement sensing.

For those interested in amateur seismology, they are invited to visit the
"Public Seismograph Network" on the internet for a world of more
information.

Category:

Science & Technology

Tags:

• seismograph
• seismometer
• coil
• magnet
• EMF
• sensor
• neodymium
• earthquake

[smellanalan]

Wow very impressive! like I said experiments as such are new to me, but that is pretty darn cool seeing the magnetic field using the key chain.

[pyrolytic]

@smellanalan Yes, some magnets possess exceptional magnetic strength and they can be visually

interesting both in what they exhibit, and of course there are many daily uses of magnets we utilize.

[electrovlog]

Very interesting experiment. That may be an useful idea for an improved version of my pendulum sensor.