By Steve Bush 19th March 2019
On the slopes of a volcano in Panama, is a company making seismographs using Raspberry Pis. 4.5 Hz Geophone Sensor Vertical
Called Raspberry Shakes, their performance is high enough for them to be connected to some international earthquake monitoring networks.
OSOP is the name of the company, based in Palmira, on Volcan Baru.
Raspberry Shake 1D is the base model (pictured), which senses in one dimension and costs under $400. It includes a Raspberry Pi, a high-resolution data acquisition board, and a single geophone.
Raspberry Pi 2D and 3D have two or three geophones for two and three dimensional sensing, then the 4D variant goes back to a single geophone, backed by a 3D mems accelerometer.
For a lower cost entry, at $160 there is a kit with one geophone and an analogue interface board – to which a user can add their own Raspberry Pi and case. Any necessary software can be downloaded from the company website. There is a little non-kit DIY information here.
Depending on model, the geophones are either Racotech Geophysical Instruments RGI-20DX 4.5 Hz (395Ω, vertical axis) or Sunfull PS-4.5B (375Ω vertical and horizontal).
The company also runs an on-line visualisation tool, called Station View, through whihc anyone with a web connection can see what any active Raspberry Shake in the world has seen over he last 10 minutes.
The simpler products are aimed at citizen scientists, education, hobbyists, makers and enthusiasts – although apparently USGS (US geological survey) and the Oklahoma Geological Survey use them.
There is also a Raspberry Shake Pro, which is the one compatible with earthquake early warning, and has three accelerometers and three orthogonal 4.5 Hz geophones (and optional infra-sound sensor for volcano monitoring) with a 24bit 144dB digitiser.
Before you get your wallet out, some licencing conditions are attached to these products – caveat emptor.
Your email address will not be published. Required fields are marked *
Get our news, blogs and comments straight to your inbox! Sign up for the Electronics Weekly newsletters: Mannerisms, Gadget Master and the Daily and Weekly roundups.
Read our special supplement celebrating 60 years of Electronics Weekly and looking ahead to the future of the industry.
Read the Electronics Weekly @ 60 supplement »
Read the first ever Electronics Weekly online: 7th September 1960. We've scanned the very first edition so you can enjoy it.
Read the very first edition »
Keep up with developments relating to space technology - satellite technology, PNT, thermal imaging, SatIoT, spaceports and more
View our busy aerospace section »
Read our special supplement celebrating 60 years of Electronics Weekly and looking ahead to the future of the industry.
Read the Electronics Weekly @ 60 supplement »
Read the first ever Electronics Weekly online: 7th September 1960. We've scanned the very first edition so you can enjoy it.
Read the very first edition »
Keep up with developments relating to the Internet of Things (IoT) - Industrial IoT, sensors, Edge AI, battery technology, SatIoT and more
View our popular Internet of Things section »
Keep up with developments relating to Power electronics - MOSFETs, batteries, PSUs and more, for example
Geophone Element View our busy Power section »