Behavior of an ultrasound wave on a particle

In summary, you may be able to move the particles by controlling the phase difference between two transducers. However, you need more information on the project to be able to give a more specific answer.
  • #1
wt1987
4
0
Hello,

at the moment, I am working on my project of particle acoustic levitation, but I want to move the particles in a certain direction. In order to generate ultrasound wave for moving a particle, I want to use two transducers. Now, my question is: Has the reflection of those sound waves, which bounded on the opposite transducer, an influence on the moving particle?Thanks, in advance!
 
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  • #2
Welcome to PF.
Particles move towards the nodes of a standing wave pattern where there is less movement.
By controlling the phase difference between two transducers that are facing each other you will be able to move the standing wave pattern and so sweep the particles in the nodes into different positions.
We need more information on the arrangement of your project to be of more help.
 
  • #3
Thank you for your response.
About the project, the particles are located in a channel and have a certain velocity. With the transducers I want to change the moving direction of the particles and I want to simulate this in MATLAB or ANSYS. The problem for me is that I have never simulate such an application. There are many papers available of similar applications, but not about the simulation (how it is done). Do you have any hints for me to start with the simulation?

Thanks, in advance!
 
  • #4
wt1987 said:
About the project, the particles are located in a channel and have a certain velocity.
That reads like an empty patent application.
wt1987 said:
Do you have any hints for me to start with the simulation?
You have not actually described a situation, so I cannot have any idea how you should simulate the situation.
Is the channel horizontal or vertical? How certain is the velocity? What do you want to happen?
How many particles are in the channel at one time? How do they get into and out of the channel?

Why not just put a transducer at each end of the channel and experiment with transducer phase difference. Where will the nodes be? Consider what might happen if the frequency of the two transducers were offset by 0.1 Hz.
 
  • #5
Thanks for helping me, but now I want to make it in a different way.
I would kindly like to apologize for the inconvenience this may cause.
 

1. How does the size of a particle affect the behavior of an ultrasound wave?

The size of a particle can have a significant impact on the behavior of an ultrasound wave. Generally, smaller particles will scatter the wave more, while larger particles will absorb or reflect the wave. This is due to the relative size of the particle compared to the wavelength of the ultrasound wave.

2. Can ultrasound waves be used to manipulate particles?

Yes, ultrasound waves can be used to manipulate particles through a process called acoustic tweezing. This involves using the pressure of the ultrasound wave to move and control the position of particles in a liquid medium.

3. What happens to the ultrasound wave when it encounters a particle?

When an ultrasound wave encounters a particle, it can be scattered, absorbed, or reflected. The behavior of the wave depends on the size and properties of the particle, as well as the frequency and intensity of the ultrasound wave.

4. How do different materials affect the behavior of an ultrasound wave on a particle?

The behavior of an ultrasound wave on a particle can be affected by the material properties of both the particle and the surrounding medium. For example, particles with high acoustic impedance, such as metals, will reflect more of the wave than particles with low acoustic impedance, such as water.

5. Can ultrasound waves be used to study particles?

Yes, ultrasound waves can be used as a non-invasive method to study particles. By analyzing the behavior of the wave as it interacts with particles, scientists can gather information about the size, shape, and composition of the particles, as well as their distribution and movement in a medium.

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