Schlieren Imaging

Idea

Schlieren Imaging is a technique proposed by the German physicist August Toepler in 1864 to study supersonic motion. We are using this tool to see the ultrasound wave and its propagation. The sound wave is propagation by the vibration of the air. When the air vibrates, the air will be either denser or less.

Setup

Version 1

The optical setup is shown below.

The light source is a high power led to make sure the light is bright enough.

Measurements

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