Piezoelectric and air pressure

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Discussion Overview

The discussion revolves around the behavior of a piezoelectric crystal within a closed circuit when subjected to air pressure in a pressurized vessel. Participants explore the relationship between mechanical stress and the generation of voltage in piezoelectric materials, as well as the implications for practical applications like pressure transducers.

Discussion Character

  • Exploratory, Technical explanation, Conceptual clarification

Main Points Raised

  • One participant inquires about the effects of air pressure on a piezoelectric crystal in a closed circuit.
  • Another participant suggests that mechanical stress is necessary for generating a piezoelectric voltage and asks for more details about the specific setup.
  • A third participant proposes that air pressure could induce internal stress in the crystal, potentially leading to voltage generation, similar to the operation of pressure transducers.

Areas of Agreement / Disagreement

The discussion contains multiple viewpoints regarding the influence of air pressure on piezoelectric voltage generation, and no consensus has been reached on the specifics of how air pressure interacts with the piezoelectric material.

Contextual Notes

Participants have not provided detailed definitions or parameters for the piezoelectric device or circuit in question, which may affect the conclusions drawn from the discussion.

Adamant
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I was just wondering if anyone could explain to me what would happen to a piezoelectric crystal on a closed circuit in a pressurised vessel?
 
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Adamant said:
I was just wondering if anyone could explain to me what would happen to a piezoelectric crystal on a closed circuit in a pressurised vessel?
Near as I can tell, nothing at all. Can you provide more detail about what you are trying to do and what you think is happening? What kind of circuit? What kind of piezoelectric device?
 
I think he wants to know if only mechanical stress can cause a piezoelectric voltage, or if air pressure can do it also.
 
If air pressure causes an internal stress, then it can certainly cause a voltage. This is how many pressure transducers work.
 
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Locking per PM request to reboot the thread with better detail.
 

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