Has anyone worked with electrets?

  • Context: Undergrad 
  • Thread starter Thread starter jonjacson
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SUMMARY

Electrets are materials that exhibit a quasi-permanent electric charge, analogous to how magnets exhibit a permanent magnetic field. They are commonly utilized in condenser microphones due to their ability to maintain an electric field without a continuous power supply. Users can find electrets available for purchase in various electronics stores or online. Previous discussions on this forum provide additional insights into the applications and properties of electrets.

PREREQUISITES
  • Understanding of electret materials and their properties
  • Familiarity with condenser microphone technology
  • Basic knowledge of electrical charge and fields
  • Experience with sourcing electronic components
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  • Research the applications of electrets in audio technology
  • Explore the manufacturing process of electret materials
  • Investigate the differences between electrets and traditional capacitors
  • Learn about the various types of electrets available for purchase
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Electronics enthusiasts, audio engineers, and anyone interested in the applications of electrets in technology and audio equipment.

jonjacson
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Everyone has magnets, but I was wondering what is their electrical equivalent. OBviously an electron is charged but I can't manipulate it.

I have found this:

https://en.wikipedia.org/wiki/Electret

Do you know this materials? Is it possible to purchase some electrets in a store?
 
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Electrets are commonly used in condenser microphones.
 
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Try a search on the forum for electret in thread titles, you'll find lots of previous discussion.
 

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