Workshop

ECC is a popular device that nicely demonstrates the laws of physics. We decided to build a small one for the pre-Christmas physics show here at the Faculty of Electrical Engineering, Czech Technical University in Prague Fyzikální čtvrtky | FEL ČVUT . Warning: The device is extremely dangerous in terms of electric shock hazard. Do […]

Generation of various magnetic fields is basic activity needed for magnetic sensors development testing and calibration. Ideally one can take advantage of a system that can generate an arbitrary vector of magnetic field. In this case a triaxial coil system is needed. Often the coils are made as Helm-holtz coil system (two circular coils per […]

Česká verze níže… This post documents a fun demonstration experiment made for Maker Faire Prague 2021. Somewhere in our big faculty cellar we found an unused spare part of a flywheel intended probably for Mig-21 fighter jet attitude indicator. It looked as a very precisely made piece of engineering, so it would very inappropriate to […]

Bachelor thesis project by Vaclav Zeleny under a supervision of David Novotny – the goal was to design and manufacture a magnetic field display usable as a fun tool for discovering magnetism but also for serious applications (e.g. easy work with permanent magnets). A matrix of Hall sensors (8 x 8 in a single module) […]

Magnetometer calibration – by rotating non-magnetic platform in a static magnetic field and by rotating the field around a static magnetometer…

Software defined instruments are very useful tools, specific hardware can be used in many ways depending on the software (firmware). At the Laboratory of Videometry students are developing various SDIs under the supervision of Associate professor Jan Fischer. The instruments proved to be very useful both for home education as well as an entry level […]

Electro-magnetic “ring launcher” Fun project to demonstrate basic physics to general public…

Proton precession magnetometer is an interesting device that uses effects of quantum mechanics. Together with a relatively simple electronics one can get a precise scalar magnetometer… sounds simple but the practical realization can be a bit tricky. We played with this topic a bit, so below you can find some technical details which might be […]