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home > HO-ED-A-01A Screen Based Apparatus for Ultrasonic Diffraction Acousto Optic Effect > HO-ED-A-01A Screen Based Apparatus for Ultrasonic Diffraction Acousto Optic Effect

$HO-ED-A-01A Screen Based Apparatus for Ultrasonic Diffraction Acousto Optic Effect$

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$HO-ED-A-01A Screen Based Apparatus for Ultrasonic Diffraction Acousto Optic Effect$

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HO-ED-A-01A Screen Based Apparatus for Ultrasonic Diffraction Acousto Optic EffectScreen Based Apparatus for Ultrasonic Diffraction Acousto Optic Effect The Ultrasonic diffraction apparatus is used to study diffraction of light by ultrasonic waves. Ultrasonic sound refers to sound with a frequency greater than the human audible range (20Hz to 20 KHz). When an ultrasonic wave propagates through a medium, the molecules in that medium vibrate over very short distance in a direction parallel to the longitudinal wave. The apparatus

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Screen Based Apparatus for Ultrasonic Diffraction

Name: HO-ED-A-01A Screen Based Apparatus for Ultrasonic Diffraction Acousto Optic Effect
Brand: auxtoursdunmonde.com
SKU: 92052722983
Price: 787.50 USD
Availability: InStock
Rating: 4.2673000000000005 (332 reviews)

Acousto Optic Effect

The Ultrasonic diffraction apparatus is used to study diffraction of light by ultrasonic waves. Ultrasonic sound refers to sound with a frequency greater than the human audible range (20Hz to 20 KHz). When an ultrasonic wave propagates through a medium, the molecules in that medium vibrate over very short distance in a direction parallel to the longitudinal wave. The apparatus consists of a graduated rail and rail carriages appropriately fitted with a laser head, an RF oscillator, a glass tank mount with crystal holder and a screen.

The ultrasonic waves generated by the transducer travels down the medium (liquid)and gets reflected at the bottom (flat glass plate) of the cell. The incident and reflected waves interfere and a stationary / standing wave pattern is formed. The pattern can be observed on a screen or a wall and we can plot diffraction pattern on a graph paper for further calculations.

Experiment:

To find the velocity of ultrasonic wave in liquids

The velocity of ultrasonic wave in a liquid,

V = ʋ ʌ

Where υ is the frequency of the crystal oscillator and Λ is the wavelength of ultrasonic wave.

We have,

Λ = n λ / Sin θ

Where n is the order of diffraction, λ is the wavelength of the laser used and θ is the angle of diffraction.

θ = tan^-1 ( D / L )

D is the order length and L is the distance measured from the crystal oscillator to the detector.

To find the bulk modulus of the given liquid

The bulk modulus of the liquid,

β = ρ^V2

Where ρ is the density of the liquid and V is the velocity of the ultrasonic wave.

To find the compressibility of the liquid

The compressibility of a liquid is the reciprocal of bulk modulus,

K = 1 / ρ^V2

Where ρ is the density of the liquid and is V the velocity of the ultrasonic wave.

Specifications:

3 MHz crystal
Dimension	20 mm diameter x 0.7 mm thickness
Resonant frequency f_r	3 MHz ± 50 KHz
Resonant impedance Z_m	≤ 6 Ω.
Static capacitance Cs	570 0pF ± 15% @ 1 kHz
5 MHz crystal
Dimension	20 mm diameter x 0.4 mm thickness
Resonant frequency f_r	5 MHz ± 100 KHz
Resonant impedance Z_m	≤ 0.48 Ω.
Static capacitance Cs	3800 pF ± 20% @ 60 Hz/1 V