Location and intensity prediction of wave energy

In summary, you cannot determine the location of a sound source or intensity of vibration from afar without resorting to a doppler effect.
  • #1
OTed
2
0
Hello forum,
Is there any method of knowing the location of source and probably intensity of vibration from afar without sorting to a doppler effect?
This is in the same as our auditory sense, when people call us at a distance we could easily approximate how far they are and the volume they speak
 
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  • #2
What are you talking about? Very generally speaking you can only say that the information about the energy and momentum of fields is in their energy-momentum-stress tensor which follows via Noether's theorem from the action principle, underlying their equation of motion.
 
  • #3
If you have multiple microphones, you can do some kind of triangulation. If you measure the phase delay between them you can get good information about the direction of the source. And intensity is always measured by the microphone.
 
  • #4
Hi OTed
welcome to PF :smile:

OTed said:
Is there any method of knowing the location of source and probably intensity of vibration from afar without sorting to a doppler effect?

I suspect you meant to say ... resorting to Doppler effect"...

if neither sound source nor receiver are moving ... there is no Doppler
and where one of them is moving, Doppler only tells you about the speed of one of them in relation to the other
OTed said:
This is in the same as our auditory sense, when people call us at a distance we could easily approximate how far they are and the volume they speak

we cannot do that as you suggest ... as we have no information as to if the person we are hearing is close and speaking quiet or loud or visa versa ... distant and speaking loud or quite

We might be able to use other senses eg. sight and see if the person is visibly close or far, but we still have no direct knowledge on how quiet or loud the person is speakingDave
 
  • #5
OTed said:
Hello forum,
Is there any method of knowing the location of source and probably intensity of vibration from afar without sorting to a doppler effect?
This is in the same as our auditory sense, when people call us at a distance we could easily approximate how far they are and the volume they speak

Are you referring to the inverse scattering problem?
 

1. What factors affect the location of wave energy?

The location of wave energy is primarily affected by the proximity to the coast, depth of the water, and the strength and consistency of the waves in a particular area. Other factors such as wind patterns, ocean currents, and topography can also play a role.

2. How is the intensity of wave energy predicted?

The intensity of wave energy is predicted through the use of mathematical models and data collected from buoys, satellites, and other instruments. These models take into account factors such as wave height, period, and direction to estimate the potential energy that can be harnessed.

3. Can wave energy be predicted accurately?

While there have been significant advancements in wave energy prediction, it is still a relatively new field and there is room for improvement. The accuracy of predictions depends on the availability and quality of data, as well as the complexity of the mathematical models used.

4. How do scientists determine the best locations for wave energy projects?

Scientists use a combination of data analysis, computer simulations, and on-site testing to determine the most suitable locations for wave energy projects. They also consider factors such as environmental impact, infrastructure availability, and economic feasibility.

5. Can wave energy be predicted in real-time?

Real-time prediction of wave energy is possible through the use of advanced technology and data processing. This allows for more accurate and timely information for wave energy projects, as well as for safety and navigation purposes in coastal areas.

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