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Specifications
sound wave vibration Demonstrationsound wave vibration Demonstration ,This is our new creative series which used for junior middle school Innovation experimental ! new beautiful design and very eash to be used.
This device contains the speaker, foam balls, two plexiglass tube, base, LED lights, ammeter, switches and other components (as shown above).
Incident sound waves emitted from the speaker of the tube and the other end of the incident wave is reflected and standing waves superimposed on each other. When the music sounded, foam balls along the tube vibration, this phenomenon is a manifestation of the standing wave, the product in an intuitive way acoustic demo out.
VSWR is not confined to a particular region to spread the wave phenomenon is usually transmitted in the opposite direction by the two coherent superposition of waves generated.
The maximum amplitude point is called antinodes, the minimum point is called node. If you want to delve into, but also according to the formula (sonic frequency / wavelength) is calculated at the moment the sound frequency. Speed of sound: 330 m / s, the wavelength is the distance between two antinodes multiplied by 2.
The whole device specification 350 mm × 260mm × 330mm; using a common base of PVC molding, base size: 350mm × 260mm × 70mm; 10mm high legs using special rubber pads to prevent vibration and slipping.
LED volume indicator and current volume indicator fixed molding universal cradle; fixed power button on the front panel switch, LED power indicator, music, toggle buttons, and volume output control knob, speakers hidden in the base.
Simulation using foam gun, its specifications: Φ30mm and Φ20mm small ball;
Large barrel transparent plexiglass tube specifications: diameter Φ40mm, diameter Φ34mm;
Small barrel transparent plexiglass tube specifications: diameter Φ30mm, diameter Φ24mm;
Fixed plexiglass tube socket specifications: Φ80mmx170mm.
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