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General Public Area >> PicoScope >> 3423 to 4423 sample rate comparison https://yabb.autonerdz.com/cgi/yabb2//YaBB.pl?num=1238551292 Message started by Mick on Mar 31st, 2009 at 6:01pm |
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Title: 3423 to 4423 sample rate comparison Post by Mick on Mar 31st, 2009 at 6:01pm
I thought I would show the sample rate comparison from the 3423 to the 4423 in picture form.
The set ups are identical. First the scopes are set up with 2000 seconds on the screen cam_crk_at_2000sec_on_screen_4000.gif (96 KB | ) cam_crk_at_2000sec_on_screen_3000.gif (93 KB | ) |
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Title: Re: 3423 to 4423 sample rate comparison Post by Mick on Mar 31st, 2009 at 6:07pm
These are set up with 20 seconds on the screen
primary_at_20_sec_4000.gif (123 KB | ) primary_at_20_sec_3000.gif (118 KB | ) |
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Title: Re: 3423 to 4423 sample rate comparison Post by Mick on Mar 31st, 2009 at 6:14pm
These are with 100 seconds on the screen
cam_crk_at_100_sec_on_screen_4000.gif (88 KB | ) cam_crk_at_100_sec_on_screen_3000.gif (93 KB | ) |
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Title: Re: 3423 to 4423 sample rate comparison Post by Mick on Mar 31st, 2009 at 6:30pm
This is with 200ms on the screen
cam_crk_at_200ms_on_screen_4000.gif (92 KB | ) cam_crk_at_200ms_on_screen_3000.gif (90 KB | ) |
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Title: Re: 3423 to 4423 sample rate comparison Post by Mick on Apr 1st, 2009 at 7:45am
Just to update the last captures at 200ms on the screen.
You will notice that the sample rate was turned down on the 200ms capture while the 4000 was used, this still net us a better sample interval, [smiley=thumbsup.gif] Mick |
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Title: Re: 3423 to 4423 sample rate comparison Post by Earl Davis on Apr 1st, 2009 at 9:14am
Mick,
Does this mean you approve of the 4000 scope :o It looks like you are getting familiar with it. 8-) How big are the files from the 4000 at 200ms if you save one screen? Earl |
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Title: Re: 3423 to 4423 sample rate comparison Post by Mick on Apr 1st, 2009 at 11:52am Earl Davis wrote on Apr 1st, 2009 at 9:14am:
Quote:
Quote:
Ah a question I can answer, if you mean at 200ms on the screen at 200MS then that would net you 6075 KB. If you mean 200ms at 2 MS then that would net you 1635 KB. Nice [smiley=gulp.gif] Mick |
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Title: Re: 3423 to 4423 sample rate comparison Post by Mick on Apr 1st, 2009 at 7:16pm
Hi Guys
Up until now I have been comparing the 3000 and 4000 series Pico scope by collecting frames with the 3000 and then changing to the 4000 and capture the same capture. But tonight I had the experience of a life time. I invited my friend Ray over with his laptop and 3423 Pico. We hooked up to a Honda accord secondary, we were both on the coil wire and I used the sync on another channel. There were times that the secondary kv was missed with the 3423 the sample rate difference was noticeable in most settings. The best part of the evening was when we used 10ms on the screen he used repeat trigger and I used rapid trigger, we started the both scopes at the same time and the results were repeated ,they were this. The 4423 captured 100 screens but the 3423 had only captured 50, we repeated this experiment over and over but the results were the same the 4423 captured twice as many frames, that means the 3423 missed 50% of the events. So I have been asked my opinion of this 4423 by many and the answer is.............. I should go on the road with this stuff, I bet I could become quite a celebrity. A couple of laptops 3 gig of ram in each........New York here I come I can see the big lights on Broadway............. Man get back on track Mick gees it’s a Pico you know Right Right. Yes guys it’s a 4423 for me very very impressed with the performance. Side by side live is the way to view the difference. Mick |
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