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Fourier analysis of an electric oscillator circuit

Fourier analysis of an electric oscillator circuit

VP1.7.7.3

Fourier analysis of an electric oscillator circuit (P1.7.7.3)

Coupled oscillator circuit with its Fourier transform (P1.7.7.3)

Fourier analysis of an electric oscillator circuit

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Description

In the experiment P1.7.7.3, the frequency spectrum of coupled electric oscillator circuits is compared with the spectrum of an uncoupled oscillator circuit. The Fourier transform of the uncoupled, damped oscillation is a Lorentz curve

in which the width increases with the ohmic resistance of the oscillator circuit. The Fourier-transformed signal of the coupled oscillator circuits shows the split into two distributions lying symmetrically around the uncoupled signal, with their spacing depending on the coupling of the oscillator circuits.

Components of equipment sets

2	56214 4	Coil, 500 turns
2	57815 4	Capacitor, 1 µF, STE 2/19
1	57910 4	Pushbutton (NO), STE 2/19
1	57719 4	Resistor, 1 Ω, STE 2/19
1	57720 4	Resistor, 10 Ω, STE 2/19
1	57721 8	Resistor 5.1 Ohm, STE 2/19
1	57723 4	Resistor, 20 Ω, STE 2/19
1	57732 4	Resistor 100 Ohm, STE 2/19
1	57681 4	Plug-in board safety socket, 20/10
1	524013 8	Sensor-CASSY 2
1	524220 4	CASSY Lab 2
4	500621 4	Safety experiment cable, 50 cm, red
4	500622 4	Safety experiment cable, 50 cm, blue
1		additionally required: PC with Windows XP/Vista/7/8/10 (x86 or x64)

Experiment Instructions

PDF (Description from CASSY Lab)

P1.7.7.3 Fourier analysis of an electric oscillator circuit

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Fourier analysis of an electric oscillator circuit

Description

Components of equipment sets

Experiment Instructions

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