These are from a Zippo barbecue lighter, with the load being 1000
Megohms; a Fluke 80k-40 driving a 10 Megohm scope probe.

So, the voltages are 1000X indicated!

I posted the best responses, many of the others were mundane.

The damped oscillations are interesting, and being as constant as they
are from hit to hit I suspect there's a mechanical resonance in the
igniter structure which is squeezing and stretching the piezo after the
hammer hits it.


JF

On Mon, 22 Sep 2008 10:54:17 -0500, John Fields
wrote:

These are from a Zippo barbecue lighter, with the load being 1000
Megohms; a Fluke 80k-40 driving a 10 Megohm scope probe.

So, the voltages are 1000X indicated!

I posted the best responses, many of the others were mundane.

The damped oscillations are interesting, and being as constant as they
are from hit to hit I suspect there's a mechanical resonance in the
igniter structure which is squeezing and stretching the piezo after the
hammer hits it.


JF

Several of my built-in ones have died this past summer (after 10
years), I'm guessing from the heat. Fortunately they seem to be a
standard size snap-in item in this town ;-)

...Jim Thompson
--
| James E.Thompson, P.E. | mens |
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I love to cook with wine Sometimes I even put it in the food