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Acoustic beats - Displaying on the oscilloscope

Acoustic beats - Displaying on the oscilloscope

VP1.7.1.2

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Description

The experiment P1.7.1.2 demonstrates the wave nature of sound. Here, acoustic beats are investigated as the superposing of two sound waves generated using tuning forks with slightly different frequencies f₁ and f₂ . The beat signal is received via a microphone and displayed on the oscilloscope. By means of further (mis-) tuning of one tuning fork by moving a clamping screw, the beat frequency

is increased, and the beat period (i. e. the interval between two nodes of the beat signal)

is reduced.

Components of equipment sets

1	41472 8	Resonance tuning forks, pair
1	58626 8	Multi-purpose microphone
1	575302	Oscilloscope 30 MHz, digital, PT1265
1	57535 4	Adapter, BNC/4 mm, 2-pole
1	30011 4	Saddle base

Experiment Instructions

PDF (Experiment description)

P1.7.1.2 Acoustic beats - Displaying on the oscilloscope

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Acoustic beats - Displaying on the oscilloscope

Description

Components of equipment sets

Experiment Instructions

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