1 / 7

Piezoelectricity

Piezoelectricity. GLY 4200 – Lecture 3 –Fall, 2014. Pierre and Jacques Curie. Pierre and Jacques Curie discovered piezoelectricity in 1881. Piezoelectric Effect Diagram. Illustration of Piezoelectric Effect. Generation of current by compression. Lighting a Neon Bulb.

erica-oneil
Download Presentation

Piezoelectricity

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Piezoelectricity GLY 4200 – Lecture 3 –Fall, 2014

  2. Pierre and Jacques Curie • Pierre and Jacques Curie discovered piezoelectricity in 1881

  3. Piezoelectric Effect Diagram

  4. Illustration of Piezoelectric Effect • Generation of current by compression

  5. Lighting a Neon Bulb • Demonstration of piezoelectricity

  6. Ion Generation • Cellophane is wrapped around nylon strings and pulled down • The strings repel each other • A gun, containing a piezoelectric crystal, is aimed at the string • Pulling the trigger causes the gun to emit positive ions • Negative ions are emitted when the trigger is released • When the trigger is released, the strings relax

  7. Polarization • Pi = dijkσjk • where • Pi is the polarization vector, • dijk is the piezoelectric modulus, and • σjk is the stress tensor

More Related