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Investigating the Damping of Motion in a Simple Pendulum through Induced Eddy Currents
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- 946
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- Sun Jun 07 2009
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... Investigating the Damping of Motion in a Simple Pendulum through Induced Eddy Currents Aim: The aim of my experiment is to determine the different permeances of several metals by measuring the effects of eddy current damping of the motion of a simple pendulum. Apparatus: The experiment involved the use of the following equipment: Electromagnet Power Supply Retort Stand w/ Boss & Clamp 3 rectangular pieces of metal, of equal volume. One of Aluminium, Copper, Titanium and Steel. A Pendulum Arm An Axle Two Small Axle Clamps, to hold the Pendulum Arm in place High Frame Rate Camera Method: To determine the effects of the induced eddy currents, I will measure the time taken for the pendulum to halve its maximum angle of deflection. I decided to use a starting angle of 30 degrees, large enough so as to minimise systematic error, but small enough that repeating the experiment wouldn't take excessively long. By connecting a video camera to a computer, I will manually













