Questions about a Piezo igniter

  • Thread starter Fischer777
  • Start date
  • #1
89
0
Questions about a Piezo igniter......

About how many times can one strike a piezo igniter before it wears out, or before it's electrical output is severely reduced?
 

Answers and Replies

  • #2
davenn
Science Advisor
Gold Member
9,444
8,346


hi there

if the constant deformation of the quartz crystal as its struck doesnt physically damage the crystal ... ie crack/shatter it, then I have no reason to believe that it would ever fail to produce a spark.
it is interesting to note tho (wiki...) that piezo igniters become unreliable at altitude...significantly so at >8000ft.

here's a page where a guy set up a test jig to test a piezo igniter. firing it 25 times a minute, at 111,000 strikes it was the mechanics that gave up, not the quartz crystal!!!!
http://www.gswagner.com/piezo/piezo.html

cheers
Dave
 
  • #3
89
0


Also, does a piezo lighter/igniter have a distinct 'positive' and 'negative' terminals, or does it create and rapid 'alternating current' (a strong negative voltage followed by an equally strong positive voltage)?
 
  • #4
davenn
Science Advisor
Gold Member
9,444
8,346


Also, does a piezo lighter/igniter have a distinct 'positive' and 'negative' terminals, or does it create and rapid 'alternating current' (a strong negative voltage followed by an equally strong positive voltage)?
I cant answer that, maybe one of the guru's can. I havent personally seen anything in print.

Dave
 

Related Threads on Questions about a Piezo igniter

  • Last Post
Replies
15
Views
3K
  • Last Post
Replies
7
Views
382
  • Last Post
Replies
1
Views
6K
  • Last Post
Replies
2
Views
684
  • Last Post
Replies
9
Views
6K
  • Last Post
Replies
2
Views
4K
Replies
2
Views
4K
  • Last Post
Replies
4
Views
961
  • Last Post
Replies
3
Views
1K
  • Last Post
Replies
2
Views
2K
Top