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Re: [TCML] Spark gap
Hi Bart, All,
How about just hanging a microphone within hearing distance and running it
through an audio spectrum analyzer or just scoping the mic output it with a
signal generator on the second channel in X-Y mode?
In a message dated 2/25/08 11:40:07 P.M. Eastern Standard Time,
Sound is a viable option. I'll consider that. I'll start with the
photons first, but I'll keep that in mind. Not only the pitch which can
give a rough guesstimate, but maybe better resolution using sound as a
trigger, "level" set of course, but certainly possible. As I've already
hinted at, I'd like to measure the voltage drop of each bang across the
gap (eventually) over a duration. I'm contemplating the approach to that.
Scott Bogard wrote:
> perhaps this is a very inaccurate approach, but, spark gaps all emit a
> certain pitch sound. This is especially noticeable on rotary gaps. You
> could use a tone generator to match the pitch of your spark gap, and
> calculate the BPS through the frequency of the sound. As I said that
> will only give a rough estimate of the breaks per second (400ish...).
> You would probably be better off to put a photo sensor close to the
> spark gap, put it through a filter, and measure the flashes per second
> with an oscilloscope, as Bart already suggested. Just musing.
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