Another sonar history lesson ...
Why are piezos sometimes labeled "crystals" or "crystal elements" ...??
Rickie
Another sonar history lesson ...
Why are piezos sometimes labeled "crystals" or "crystal elements" ...??
Rickie
www.podunkideas.com <--Click here
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https://www.crappie-gills-n-more.com/
https://cornfieldfishinggear.com/
------------------------>> Pro Staff Sonar Advisor
Has to do with the arrangement of the atoms in the material forming elements that repeat in a three dimensional lattice to form a crystalline structure. Or something like that. Or, could be as simple a early piezos were quartz crystals.
Remember something like this in physics when studying semiconductors and silicon structures (1,0,0),(0,0,1), (0,1,0) Miller Indices, etc.. Now my head hurts thinking about it..
-danny
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HMMMM .... I would have thought it was the other way around .....certain crystals exhibit piezoelectric characteristics ..... so the term piezo is actually a shortcut name for a piezoelectric crystal...
We must have mistakenly been signed up for the advanced class ...
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Looking for the one that makes it all worthwhile.
Quote ... in part ...
The word "piezo" is derived from the Greek word for pressure. In 1880 Jacques and Pierre Curie discovered that pressure generates electrical charges in a number of crystals such as quartz and tourmaline; they called this phenomenon the "piezoelectric effect". Later they noticed that electrical fields can deform piezoelectric materials. This effect is called the "inverse piezoelectric effect".
Fundamentals of Piezo Technology
Quartz and Tourmaline = crystal Earth elements ...
From that same link ... Quote ...in part ...:
The industrial breakthrough came with Piezoelectric Ceramics, when scientists discovered that barium titanate adopts piezoelectric characteristics on a useful scale when an electric field is applied.
Rickie
www.podunkideas.com <--Click here
------------
https://www.crappie-gills-n-more.com/
https://cornfieldfishinggear.com/
------------------------>> Pro Staff Sonar Advisor
I am with Kozmo on this one! Good to learn something for the day!
Proud Member of Team Geezer!