This site is maintained in order to present a seismometer project as an educational project for schools and students. The goal of the project is to build an inexpensive but highly precise seismometer, which offers high resolution and live data representation over the internet.
The project is divided in its entirety into three parts, of which the first one is the computer science part (software), another part is the electrical engineering part (electrical hardware), the third and last part consists of mechanical engineering (mechanical hardware: casing and fixture of the sensors).
The seismometer essentially consists of a geophone sensor, an analog-to-digital converter (ADC), a control unit and a casing. During the project time, different approaches will been tried out; they will be documented in the following posts. The project started in January 2019 and is work in progress. If possible, the project shall be extended to a 3D ultra precise seismometer, which is connected to the international IRIS network. IRIS is a consortium of over 100 US universities dedicated to the operation of science facilities for seismological data. IRIS programs contribute to scholarly research, education and earthquake hazard mitigation [https://www.iris.edu].
The best way to follow the project is to read all posts below in chronological order.
If you like the project or have questions or remarks, use the field for comments under each post. Please always stay polite. It should be self-evidently that hateful or impolite posts will be deleted from the administrator without hesitation [“I am paying for this microphone, Mr. Green!” as Ronald Reagan said…]. If you are a teacher or student, who wants to build a seismometer for your school class or for yourself, don’t hesitate to get in touch with me over Email.
From time to time I will post small update messages at the status section below.
The current version V0.2 of the seismometer is a proof of concept of the seismometer, which is able to visualize first data.
Currently I am preparing to set up the Raspberry Pi, the ADC and the geophone into the soil of my garden, but I need to drill through several walls, to attach pipes for the network and the power cable, to bore into the soil, prepare a casing and so on. Also the ADC needs a board to be fixed inside the casing. It will take a while until I find enough time to prepare everything as I am doing that in my free time.
Projected installation date
Since of my work, the projected date for installation in the ground moved to winter of 2019.
ADC raw resolution: 32 bits
ADC noise free bits: 19 bits
500 samples per second
Setup seimometer into the soil.