Converting sound to electrical energy

Click For Summary
Converting sound energy to electrical energy using piezoelectric materials is feasible and has been utilized in applications like ceramic cartridges for record players and microphones. While piezoelectric devices can generate electrical signals from sound, the amount of energy produced is minimal, typically only a few milliwatts. This low output is insufficient for practical resource use, as significant sound levels required for energy generation could be harmful to human health. The discussion highlights the limitations of sound energy conversion and the challenges in harnessing it as a viable energy source. Overall, while the technology exists, its practical applications are limited due to energy output constraints.
titothomas
Messages
1
Reaction score
0
Is there any possibility to converting sound energy to electrical energy by using piezo electric material.
 
Engineering news on Phys.org
Yes. It has been done for over 50 years in ceramic cartridges for record players and in some microphones.
 
titothomas said:
Is there any possibility to converting sound energy to electrical energy by using piezo electric material.
Also used inguitar pickups
 
Moderator's note: posts on a new topic were moved from original thread to newly created thread.
 
titothomas said:
Is there any possibility to converting sound energy to electrical energy by using piezo electric material.

It used to be done all the time with the POT device (POT = plain old telephone)

http://www.packetworks.net/res/pub/images/phone_red.jpg
 
I thought plain old telephones used a carbon mic.
 
I think Av... is correct,I also don't think old fashioned phones used piezo crystals as microphones or speakers
 
I think the question is more to do with what we mean by 'Energy'. Is it 'Energy' as a detectable signal or 'Energy' in the quantity that could be used as a useful resource.
As has been stated dozens of times before, there is just not enough 'Energy' around, in the form of sound, to provide us with any significant amount as a resource. A few milliWatts (maximum) is just not enough to make a significant difference to our lives.
To live in any conditions where there would be enough sound level to drive any of our equipment would involve wearing ear protectors and doing ourselves physical harm, probably. Do you want to live in the Dartford Tunnel or at the end of a Heathrow runway?
 

Similar threads

  • · Replies 74 ·
3
Replies
74
Views
8K
  • · Replies 6 ·
Replies
6
Views
2K
  • · Replies 22 ·
Replies
22
Views
2K
  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 7 ·
Replies
7
Views
3K
  • · Replies 1 ·
Replies
1
Views
1K
  • · Replies 4 ·
Replies
4
Views
2K
  • · Replies 1 ·
Replies
1
Views
667
  • · Replies 7 ·
Replies
7
Views
2K
  • · Replies 10 ·
Replies
10
Views
3K