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Acoustic waves Apparatus: PHD015600

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Référence : PHD 015 600



Acoustic waves Apparatus: PHD015600 2/4

One acoustic wave is a disturbance of the local pressure which is propagated, at constant speed, within a material medium.


This unit enables the study of the behaviour of these disturbances, or sound waves, within the air, with the different experiments:

Reflection of a progressive wave on an obstacle.
Refraction of a progressive wave within a medium.
• Diffraction of a progressive wave through one slot, one side or a hole. This experiment is carried out with ultrasounds for
wavelength scale convenience.
Standing waves corresponding to the transmission of a progressive wave to one obstacle, in normal incidence. This reflected wave interfers with the incident wave to generate one wave called “standing wave”.
Interferency to one source, such as Young’s slots & Fresnel’s mirrors. Experiments carried out with ultrasounds.
Interferency to two sources for the study of the influence of phase, amplitude & beats. Experiments carried out with ultrasounds.
• Wave propagation inside the Kundt’s tube. This tube is a cylinder inside which an acoustic wave is transmitted by loud speaker.
One obstacle is generally located into the tube, in order to generate one cavity, & inside this cavity, a near-standing wave system prevails.

The kit includes :
Composition:

• 1 Kundt's Kundt
• 2 microphones
• 2 amplifiers
• 2 loudspeaker (one of them can be adjusted to the Kundt's tube)
• 1 dual ultrasound transmitter
• 1 microphone for ultrasound
• Set of mechanical modules : 2 benches with goniometric coupling, 1 set of plates and rods to create adjustable slit, dual slit, screen



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DIDALAB
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78990 ELANCOURT (France)
Phone : +33.1.30.66.08.88 Mail:didalab@didalab.fr
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