History of the construction in pictures
Electronics (that will add some energy that makes the pendulum keep on swinging) is tried out
The electronics is tried out
Interior picture from the firm that wound the coil with copper wire.
Self-made bobin, wound by hand with 0,6 km copper wire
The coil is now in a soft iron core
Fastening device
The fastening device (black part) is made on the school´s weld department
In this round, black disc is the suspension to be mounted
The suspension of the pendulum
The suspension is made in the industry program
The important Charron ring
The complete suspension
In the centre of the coil there is a case with 6 IR-diodes and a receiving set in the middle.
The wooden disc under the pendulum
The wooden disc under the pendulum is made by the wood program at Dackeskolan in Mjölby
The wooden disc with the coil mounted in the centre. The wooden disc with the coil in the centre.
The bob
The steel bob before the gilding
The steel bob was mirror-polished and got a thin (3µm) layer of gold
Construction of the electronics including the coil
Testing with different masses, lengths of suspension and electronic settings can be started. A second prototype, this time with a heavier bob and the completed pendulum.
The pendulum is about 6 metres high.
Mounting of definitive electronics.
Here are adjustments of settings in progress
Finally, the box with the electronics can be pushed under the wooden disc.
Preparations for the inauguration
The pendulum is camouflaged before the inauguration, when the cover is going to fall...
The completed Foucault pendulum
Back Photo Bo Göransson