Acoustic wave propagation

29359 best questions for Acoustic wave propagation

We've collected 29359 best questions in the «Acoustic wave propagation» category so you can quickly find the answer to your question!

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☑️ What are wave propagation?

Propagation of disturbance suffered by a particle in a medium is called wave propagation Wave Propagation is a term used to estimate the actions and characteristics of a wave of motion either in solids, liquids, gasses, or electrical radio type waves by the environment it is in and what factors affect those waves behaviors.

☑️ Antenna and wave propagation?

Yes, it certainly is appropriate to mention those things together, as the principles of their interaction are so inexorably intertwined.

☑️ What is sky wave propagation?

  • Skywave propagation also known as the skip is a type of radio wave propagation. It is either the reflected or refracted back waves to the earth from the ionosphere which is an electrically charged layer of the upper atmosphere.

☑️ What is space wave propagation?

What are the applications of sky wave propagation?

  • Applications of space wave propagation A line of sight communication and satellite communication Radar communication Microwave linking

☑️ What is speed wave propagation?

  • The speed of propagation vw is the distance the wave travels in a given time, which is one wavelength in a time of one period. In equation form, it is written as v w = f λ. v w = f λ. From this relationship, we see that in a medium where vw is constant, the higher the frequency, the smaller the wavelength.

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Video answer: Acoustic wave therapy for peyronie's- is this a scam?

Acoustic wave therapy for peyronie's- is this a scam?

Video answer: Ed treatment cellutone acoustic wave therapy utah

Ed treatment cellutone acoustic wave therapy utah

Video answer: Drug-free, non-invasive acoustic wave therapy for ed

Drug-free, non-invasive acoustic wave therapy for ed

Video answer: The phoenix - quick start guide

The phoenix - quick start guide

Top 29339 questions from Acoustic wave propagation

We’ve collected for you 29339 similar questions from the «Acoustic wave propagation» category:

What is the direction of wave propagation?

  • The "direction of wave propagation" is the direction of a wave's energy flow, and the direction that a small wave packet will move, i.e. the direction of the group velocity. For light waves, this is also the direction of the Poynting vector . On the other hand, the wave vector points in the direction of phase velocity.

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What does wave propagation mean in physics?

  • propagation - the movement of a wave through a medium. physical phenomenon - a natural phenomenon involving the physical properties of matter and energy. Doppler effect , Doppler shift - change in the apparent frequency of a wave as observer and source move toward or away from each other.

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What are the types of wave propagation?

Hint: There are three types of modes of propagation of electromagnetic waves: Ground wave propagation, Space wave propagation and Skywave propagation.

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How to find direction of wave propagation?

directions of propagation. To find the direction of propagation of an E&M wave, point the fingers of the right hand in the direction of the electric field, curl them toward the direction of the magnetic field, and your thumb will point in the direction of propagation.

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What is optimum frequency in wave propagation?

The most effective frequency at a specified time for ionosperic propagation of radio waves between two specified points: also known as Frequency Optimum Traffic; Optimum Traffic Frequency

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What is meant by electromagnetic wave propagation?

In simple words, electromagnetic waves are oscillations produced due to crossing over of an electric and a magnetic field. The direction of the propagation of such waves is perpendicular to the direction of the force of either of these fields as seen in the above figure.

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How does pressure affect sound wave propagation?

Only the temperature is changing the speed of sound.

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What is the space wave propagation frequency?

Space wave propagation frequency is nothing special, it is the same frequency of the wave in question, for example WLAN Wifi produces 5.2 GHz radio wave from your computer or from router, so that would be the the space wave propagation frequency in question

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How much does acoustic wave therapy cost?

  • Acoustic Wave Therapy costs between $150 and $300 per session. Costs vary according to the region where you live and the area of your body you're having treated. Full treatments can cost between $900 and $1200. Follow up maintenance treatments can add to that cost.

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What does acoustic wave treatment (awt) involve?

  • AWT (Acoustic Wave Treatment) involves introducing acoustic waves into affected regions of the body. Medical applications for these acoustic waves go back to 1980; they have been successfully used in pain therapy and in treating a wide range of other conditions. Recent studies show that acoustic waves have beneficial biological effects that, in aesthetic treatment, may lead to activation of metabolic processes and stimulation of connective tissue.

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How long does acoustic wave therapy last?

Each Acoustic Wave Therapy treatment lasts about 15 minutes, with clients returning for treatments once a week for six weeks. No anesthesia is necessary and the clients can return to their daily activities immediately, as there is a non-invasive and painless procedure.

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Is acoustic wave therapy effective for ed?

This treatment is especially helpful for men with a mild version of ED. Studies have provided evidence that shock wave treatment still supplied incredible improvements for more than 75% of patients involved.

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How the surface acoustic wave is generated?

Surface acoustic waves are generated by converse piezoelectric effect at the input transducer and they are converted back to an electrical signal at the output transducer by direct piezoelectric effect.

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Velocity of ultrasonic wave using acoustic grating?

The ultrasonic waves generated with the help of a quartz crystal inside the liquid in a container sets up standing wave pattern consisting of nodes and anti-nodes. The nodes are transparent and anti-nodes are opaque to the incident light. In effect the nodes and anti-nodes are acts like grating(a setup of large number of slits of equal distance) similar to that of rulings in diffraction grating. It is called as acoustic grating or aqua grating. Hence, by using the condition for diffraction, we can find the wavelength of ultrasound and thereby the velocity of sound in the liquid medium.

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Who invented the bose acoustic wave system?

The man who gave his name to the company and stereo music in a small package to the planet goes by the name of Amar Bose. Apparently he did have help from others but his name is best known through the world of high quality sound

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Why do short wave broadcast services use sky wave propagation?

They can bounce (be deflected) by the ionosphere to (possibly) circle the globe. Other frequencies are limited to line of sight.

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Why sky wave propagation is better at night?

What are the advantages of sky wave propagation?

  • Thus in sky wave propagation signal can be transmitted to a larger distance. In this way, sky wave propagation eliminates the disadvantages associated with ground wave propagation. An important factor of ionospheric wave propagation is – skip distance. And skip distance is defined as the minimum distance on the surface of the earth from where ...

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Does amplitude of electromagnetic wave change with propagation?

How is the energy of an electromagnetic wave related to its amplitude?

  • Explain how the energy of an electromagnetic wave depends on its amplitude, whereas the energy of a photon is proportional to its frequency Anyone who has used a microwave oven knows there is energy in electromagnetic waves. Sometimes this energy is obvious, such as in the warmth of the summer Sun.

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What do you mean by propagation of wave?

  • as by natural reproduction.
  • The process of spreading to a larger area or greater number; dissemination.
  • is transmitted through a medium such ...

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How to find direction of propagation of wave?

  • directions of propagation. To find the direction of propagation of an E&M wave, point the fingers of the right hand in the direction of the electric field, curl them toward the direction of the magnetic field, and your thumb will point in the direction of propagation.

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What are the disadvantages of ground wave propagation?

  • We know that ground wave propagation is usually suitable for the transmission of low-frequency electromagnetic signals (usually up to 2 or 3 MHz ). Also, another major disadvantage associated with ground wave propagation is that it is suitable only for short-range operation.

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Who developed the wave theory of light propagation?

Christiaan Huygens

In his Traité de la Lumière (1690; “Treatise on Light”), the Dutch mathematician-astronomer Christiaan Huygens formulated the first detailed wave theory of light, in the context of which he was also able to derive the laws of reflection and refraction.

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What are the applications of sky wave propagation?

what do you think (question mark)

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How to calculate propagation speed of a wave?

  • The speed of propagation vw is the distance the wave travels in a given time, which is one wavelength in a time of one period. In equation form, it is written as v w = f λ. v w = f λ. From this relationship, we see that in a medium where vw is constant, the higher the frequency, the smaller the wavelength.

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What is dielectric soil and radio wave propagation?

How are radio waves propagated on the Earth?

  • Radio waves may be propagated in one or more of five modes, depending upon the medium into which they are launched and through which they pass. These modes are: 1. Free space propagation, where radio waves are not influenced by the earth or its atmosphere. 2. Ground wave propagation, where radio waves follow the surface of the earth. 3.

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What does fading mean in radio wave propagation?

  • Fading is a deviation of the attenuation that a signal experiences over certain propagation media. It may vary with time, position and/or frequency Time cy Signal fading Classification of fading: large-scale fading (gradual change in local average of signal level)

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What are the advantages of sky wave propagation?

  • Thus in sky wave propagation signal can be transmitted to a larger distance. In this way, sky wave propagation eliminates the disadvantages associated with ground wave propagation. An important factor of ionospheric wave propagation is – skip distance. And skip distance is defined as the minimum distance on the surface of the earth from where ...

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What are principal planes in antenna wave propagation?

The principal plane in wave propagation is the E-plane and the H-plane of an antenna. The E-plane consists of the electric field vector, and by convention, it's the direction in which the wave is said to be 'polarized'. The H-plane consists of magnetic field vector of the wave. The electric field vector and the magnetic field vector are perpendicular to each other, and the direction in which the wave propagates (moves) is perpendicular to both of them.

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What do you mean by radio wave propagation?

  • Radio Wave Propagation. • Radio propagation is the behavior of radio waves when they are transmitted, or propagated from one point on the Earth to another, or into various parts of the atmosphere.

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How is the propagation of sound wave possible?

  • Propagation of sound: The propagation of sound wave is not possible through vacuum. The medium here can be gas, liquid or solid. The speed of sound when it is travelling through a medium depends on the type of medium. The speed of sound when travelling through air is 343 m/s or 1,235 km/h.

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How to find the direction of wave propagation?

  • My question is how to now determine the propagation direction. I figured out the velocity from the wave equation 1 v 2 = 6 2 but this gives me a negative and positive value for v. Which one is correct? I don't really know how to tell this from the expression. Thank you!

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Why are tsunami wave propagation speeds so slow?

  • Disclaimers: This model does not model the deep ocean characteristics of tsunami. Wave propagation speeds are slow due to the depth of inches rather than miles. So that one gutter can be emptied into another, there must be a flexible water proof hinge between the middle gutter section and the wave generation gutter.

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How are plane waves related to wave propagation?

  • Consider a material in which B = „H D = †E J = ‰= 0: (1) Then the Maxwell equations read r¢E = 0 r¢B = 0 r£E = ¡ 1 c @B @t r£B = „† c @E @t : (2) Now we do several simple manipulations that will become second nature. First take the curl of one of the curl equations, e.g., Faraday’s law, to flnd r£(r£E) = r(r¢E) ¡r2E = ¡ 1 c @ @t (r£B) = ¡ „† c2

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Is the bose acoustic wave cd3000 factory repaired?

  • These are some of the typical symptoms we have encountered with the Bose Acoustic Wave/CD2000, CD3000. We maintain a large inventory of original replacement parts. Older units that are no longer factory repairable can generally be repaired by Us.

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What is the cost of acoustic wave therapy?

  • Acoustic Wave Therapy costs between $150 and $300 per session. Costs vary according to the region where you live and the area of your body you're having treated. Full treatments can cost between $900 and $1200.

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How is the surface acoustic wave ( saw ) excited?

  • A surface acoustic wave (SAW) is most conveniently excited on a piezoelectric crystal using an interdigitated electrode pattern, or interdigital transducer (IDT). A surface acoustic wave (SAW), also called a Rayleigh wave, is essentially a coupling between longitudinal and shear waves.

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How does a surface acoustic wave filter work?

  • Surface-Acoustic-Wave Filters. A surface-acoustic-wave (SAW) filter consists of an input transducer that generates a surface-acoustic-wave replica of the signal, a polished piezoelectric substrate that acts as the propagation path for the waves, and an output transducer that converts the delayed acoustic waves back to an electrical signal.

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Are there any studies on acoustic wave therapy?

  • When you go on the Gainswave website and click on the tab thats says "Clinical Research" the page will be plastered with studies pertaining to "low intensity* extracorporeal shock wave therapy" for the treatment of erectile dysfunction. But they dont display a single study on " Acoustic wave therapy" for the treatment of erection.

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What was the first bose acoustic wave system?

  • The waveguide is claimed to improve low-frequency sound "from a small enclosure by guiding air through two 26” folded wave guides". The first "Wave" product was the "Acoustic Wave Music System" (AWMS-1), which was a tabletop mini-hifi system that was introduced in 1984.

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How does acoustic wave therapy improve blood flow?

  • During acoustic wave therapy, the sound waves of varying energy trigger neovascularization ( 1 ), i.e., the formation of new function networks of blood cells for improved blood flow. In simpler terms, acoustic wave therapy stimulates the growth of new blood vessels alongside opening existing blood vessels and improving blood circulation in ...

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When did the acoustic wave radio come out?

  • That waveguide technology became the basis of the Acoustic Wave Music System, released in 1985, and the smaller Wave AM/FM radio, released in 1993, and dozens of other varieties since. (Fun fact: The company also produced a massive subwoofer, designed for large group events like movies, that relies on the same technology as the Wave.

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How is the propagation of a spin wave described?

  • The propagation of spin waves is described by the Landau-Lifshitz equation of motion: where γ is the gyromagnetic ratio and λ is the damping constant. The cross-products in this forbidding-looking equation show that the propagation of spin waves is governed by the torques generated by internal and external fields.

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How is the propagation of a mechanical wave limited?

  • The distance of the wave’s propagation is limited by the medium of transmission. In this case, the oscillating material moves about a fixed point, and there is very little translational motion. One intriguing property of mechanical wave is the way they are measured, which is given by displacement divided by wavelength.

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How does the propagation of an electromagnetic wave occur?

  • Electromagnetic Wave Propagation. The changing magnetic field, in turn, induces an electric field so that a series of electrical and magnetic oscillations combine to produce a formation that propagates as an electromagnetic wave.

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How to determine the direction of a wave propagation?

  • For a particular section of the wave which is moving in any direction, the phase must be constant. So, if the equation says y ( x, t) = A cos ( ω t + β x + ϕ), the term inside the cosine must be constant. Hence, if time increases, x must decrease to make that happen.

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What is a wave that requires medium for propagation?

Mechanical waves

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Which is the speed of propagation of a wave?

  • The speed of propagation v w is the distance the wave travels in a given time, which is one wavelength in a time of one period. In equation form, it is written as In equation form, it is written as v w = λ T v w = λ T

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What does angle mean in old radio wave propagation?

What do you mean by radio wave propagation?

  • Radio Wave Propagation. • Radio propagation is the behavior of radio waves when they are transmitted, or propagated from one point on the Earth to another, or into various parts of the atmosphere.

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How does the propagation of a sound wave occur?

  • Propagation of Sound Waves When an object vibrates, it creates kinetic energy that is transmitted by molecules in the medium. As the vibrating sound wave comes in contact with air particles passes its kinetic energy to nearby molecules. As these energized molecules begin to move, they energize other molecules that repeat the process.

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Propagation of sound wave through solid liquid and gas?

it is waste

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