Ultrasonic-interferameter , Physics

Assignment Help:

Ultrasonic-interferameter

1.defenition

2.applications

3.uses

4.free lenth

5.Compressibility

Ans)An Ultrasonic Interferometer is a easy and direct device to determine the ultrasonic velocity in liquids with a high degree of accuracy.

The principle used in the measurement of velocity (V) is based on the accurate determination of the wavelength (λ) in the medium. Ultrasonic waves of called as frequency (f) are produced by a quartz plate fixed at the bottom of the cell. These waves are reflected by a movable metallic plate kept parallel to the quartz plate. If the separation among these two plates is exactly a total multiple of the sound wavelength, standing waves are formed in the medium. This acoustic resonance gives rise to an electrical reaction on the generator driving the quartz plate and the anode current of the generator becomes maximum.

If the distance is now increased or decreased and the variation is exactly one half wavelength (λ/2) or multiple of it, anode current again becomes maximum. If the separation among quartz plate and metallic plate is changed by d among two successive maximum anode current, then
d = λ/2...(1)
From the knowledge of wavelength (λ), the velocity (V) can be obtained by the relation :
V = λ × f =2df....(2)

 


Related Discussions:- Ultrasonic-interferameter

Verify gauss theorem in electrostatics, Verify Gauss' theorem in electrosta...

Verify Gauss' theorem in electrostatics. Apply it to search the electric field strength at a point near a long straight conductor carrying electric charge.

Finding time period and frequency, find time period and frequency of vibrat...

find time period and frequency of vibration of water level in a limb of manometer executing simple harmonic vibrations

Deduce the conditions for constructive abd destructive, In Young's double s...

In Young's double slit experiment, deduce the conditions for (i) constructive, and (ii) destructive interference at a point on the screen. Draw a graph showing variation of the res

Truck rear ends car- momentum and collisions, Truck Rear Ends Car Colli...

Truck Rear Ends Car Collisions among objects are governed through laws of momentum and energy. While a collision occurs within an isolated system, the total momentum of the sys

Define Irrotational flow, Although it needs not concern us further, we also...

Although it needs not concern us further, we also consider that the flow is irrotational. To check for this property, let a tiny grain of dust goes with the fluid. Although this te

Advantages and disadvantages of three phase system, Advantages and disadvan...

Advantages and disadvantages of three phase system over single phase System A) In a single phase circuit the power delivered is pulsating. In three phase system the total power

Telescope, Working of terrestrial telescope

Working of terrestrial telescope

Explain term pitch, Pitch: It is the characteristics of a sound by whic...

Pitch: It is the characteristics of a sound by which we can distinguish among a grave and shrill sound is known as pitch. It depends on frequency of the vibrating body and expr

Explain moseleys law, What do you mean by Moseley's law? Explain briefly it...

What do you mean by Moseley's law? Explain briefly its importance. Explain the origin of X-ray spectra. Describe continuous and characteristic x-ray spectrum.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd