Sound focusing
- In stock with stable lead times — single units or complete sets
- Size, appearance and interaction can be adapted to the museum’s theme
- For science museums, campus science rooms, community science centers and mobile science museums
- Export packing and overseas on-site installation support
1. Content: Exhibition items: Place two large concave mirrors on opposite sides of the booth, with the concave surfaces facing each other. Sound waves propagate from your mouth to a parabolic surface, where they are reflected onto another parabolic surface. As the parabolic surface focuses the sound onto the ring, your partner can hear your voice clearly near the ring. The focus of its sound waves is at the position of the ring. If you are alone, you can ask visitors or tour guides around you for help. If you stand between two paraboloids, you become an unconscious eavesdropper on others' conversations.
2. Principle:
Sound focusing refers to the phenomenon where a concave surface forms a concentrated reflection of sound waves, causing the reflected sound to focus on a certain area, resulting in a particularly loud sound in that area.
Principle of Sound Wave Reflection
This exhibition utilizes the principle of sound wave reflection. When sound waves are reflected by the surface of a large object, the reflection line and the incident line are on both sides of the normal of the reflection surface, and the reflection angle is equal to the incident angle (reflection law). Sound waves can also be reflected by large concave mirrors and converge at a single point, a phenomenon called acoustic focusing.
3. Purpose: To demonstrate the reflection and focusing of sound through two large spherical paraboloids. Exhibition items allow the audience to understand the conditions and principles required for the formation of sound focusing through the interaction of two participants, and to gain a preliminary understanding and experience of this phenomenon.