Re: Spark gap physics.
Dave Bell the formula is Current * sqrt((2*Voltage*Mass)/Ce.
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Richard Andrews
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#147427
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Re: Spark gap physics.
Do you mean that you are using the spark gap as an EHT voltmeter? LTspice will simulate a 1Gohm/volt conventional analogue peak voltmeter, which would seem to be simpler and more accurate.
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John Woodgate
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#147426
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Re: Spark gap physics.
This sounds like a very interesting project! Out of curiosity, how do you measure thrust with a spark gap? Dave Sent: Thursday, July 13, 2023 12:45 PM To: [email protected] Subject: EXTERNAL: Re:
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Bell, Dave
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#147425
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Re: Spark gap physics.
The spark gap is important to me because I am simulating an ion thruster I created. A proper spark gap will allow me to measure thrust.
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Richard Andrews
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#147424
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Re: Spark gap physics.
I'm not familiar with the spark gap usage, nor the exploding wire thing. As I see it, mainstream electronics does not use spark gaps because they are too variable. There are effects due to the small
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Bonkers
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#147423
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Re: Spark gap physics.
"the uniqueness can be measured, but not anticipated prior to the event." The limitations of a conventional spark gap? can be reduced somewhat by using an? exploding wire between two electrodes.
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imnoexpertbut
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#147422
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Re: POSH (Powershell) tool to manage "user approved" LTspice cmp files
Hello eewiz I've uploaded a .zip file containing powershell script "DoLTspiceUpdate_ps1_20230713.txt". You will need to rename this .txt file to "DoLTspiceUpdate.ps1". To run the script: 1. Open
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eetech00
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#147421
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Re: Spark gap physics.
#1 rule, It is not deterministic. Every spark gap is unique at some level. There is a distribution curve that can be exploited, in terms of multiple sampling and ratiometric sampling. Both amplitude
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ron davison
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#147419
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Re: Spark gap physics.
It's always negative differential resistance, whether in an arc, a Gunn diode, the input into a loaded boost converter.? If not ballasted you can make a negative resistance oscillator. The term
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Bonkers
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#147418
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Re: Spark gap physics.
There is an old GE databook on Neon lamps online that discussed adding radioactive gas to certain (apparently not all) lamps and why. Once I downloaded it I lost track of where I found it. I worked at
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murrayatuptown
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#147417
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Re: Spark gap physics.
A video I want to share: https://www.youtube.com/watch?v=r04e45E-wSc
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Richard Andrews
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#147416
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Re: Warning: Multiple definitions of model ...
I got my invite awhile ago. Qspice will download it's installation files and quit because it doesn't run on wine.
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Richard Andrews
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#147415
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Re: Warning: Multiple definitions of model ...
You're a better subject (victim?) than I, who received the invitation a few weeks ago. Have at it, Tony. Donald
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Donald H Locker
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#147414
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Re: Spark gap physics.
@Mike, nice retirement job, much appreciated by many. I did a similar thing, a charged inductor that spikes into a capacitor, to make a big "ping" at the LC frequency, it was driving an ultrasonic
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Bonkers
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#147413
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Re: Spark gap physics.
It¡¯s still in a restricted beta. Google QSPICE to find the signup site.
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Mike Engelhardt
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#147412
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Re: Spark gap physics.
Recovery time is also dependent on the recombination time for the gaseous ions involved not just on the circuit time constants. Recombination times are typically in the order of ten microseconds or
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Bruce Griffiths
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#147411
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Re: Warning: Multiple definitions of model ...
Well, who'd have thought... Out of the blue, I received an invitation to be a beta tester this evening. ? -- Regards, Tony
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Tony Casey
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#147410
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Re: Spark gap physics.
Is the QuickSpice good for downlaod & use? ________________________________ Sent: Wednesday, July 12, 2023 2:31 PM To: [email protected] <[email protected]> Subject: Re: [LTspice] Spark gap physics.
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Robin Gangopadhya <robin@...>
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#147409
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Re: Spark gap physics.
Gap geometry affects the field strength for a given gap width. With infinite plane parallel electrodes the voltage required to achieve the critical field strength is proportional to the electrode
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Bruce Griffiths
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#147408
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Re: Spark gap physics.
yep. LTspice was my retirement job
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Mike Engelhardt
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#147407
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