hobby #80
Geophone Seismography
Building and operating DIY seismometers using repurposed geophones to detect and log local ground vibrations — from passing trucks to distant earthquakes. Combines signal processing, precision calibration, and the art of extracting meaningful data from noise.
Mar 22 10:45 AM #80 4 min The Furnace Registers at 3.2 Hertz
Geophone SeismographyThe amplifier works perfectly. I can now confirm my furnace oscillates at 3.2 Hz. Earthquakes remain elusive.
code-a-day tied to this hobby
- Remembering What Just Happened Ring Buffers