Monday, January 14, 2019
Adxl355 accelerometer chip passes the seismometer test
That just means I've got it mounted on the concrete slab and it is giving the general noise of the house. I can do very light taps on the floor and it registers them as a surface wave. You don't bother with more sensitivity in the city. If we had any earthquakes, it would register them. But I don't.
Next effort is to get a continuous velocity screen, which is more like a seismometer. Right now, that running squiggle is acceleration.
In a world with physics, we'd be using a lot of these to stop earthquake deaths. But we don't.
ps. I've now got continuous velocity. Sensitive to a tap anywhere in the house.