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Re: Sparklength inquiry
Malcolm -
It is impossible to have coilers agree on simple and easy tests. There
certainly is no possibility of their agreeing to the more difficult tests
that coilers have been suggesting. It should be noted that more difficult
tests will always be less accurate such as determining Ep.
John Couture
----------------------------
At 05:43 AM 9/28/98 -0600, you wrote:
>Original Poster: "Malcolm Watts" <MALCOLM-at-directorate.wnp.ac.nz>
>
>I think there is an inherent problem with trying to measure
>length/power:
>
>> Original Poster: "John H. Couture" <couturejh-at-worldnet.att-dot-net>
>>
>>
>> JohnF, Greg, Bart -
>>
>> Apparently we all agree with the fact that the TC spark length is related
>> to input power. However, we differ in how this relationship varies with
>> power. For example the following listing compares the JohnF streamer sparks
>> with the JHCTES controlled spark lengths.
>>
>> Power Input JohnF JHCTES
>> 680 W 42" 15"
>> 2100 W 64" 35"
>> 8400 W 128" 97"
>> 10 KW 15' 9.3'
>> 26 KW 25' 18.3'
>> 33.6 KW 21' 23'
>> 67 KW 31' 38'
>> 109 KW 45' 55'
>> 134 KW 42' 64'
>> 538 KW 84' 180'
>
>For example, I have got to a foot of airstreamers under repetitive
>conditions with Ep around 0.6J and BPS=100 (= 60W!). Now, with just
>1 BPS and 3.5J I can also get to one foot (=3.5W!). I think there
>needs to be an Ep spec and see what an increase in BPS can do with
>that figure. A question then arises: can some coils do better at 3J
>and 1BPS than others? I am sure the answer is yes - in fact I know
>it is having conducted the test. Those power figures I've given are
>for a continuous input to whatever coil/capacitor configuration I
>used. Be interested to hear other comments on this.
>
>Malcolm
><snip>