#qi-hardware IRC log for Monday, 2016-03-28

DocScrutinizer05hmm, shouldn't01:02
DocScrutinizer05I don't see any loop without hard termination condition01:03
DocScrutinizer05it either terminates after SAMPLES loops, or it moves Vc1 to max or min01:04
DocScrutinizer05only oscillation could cause endless looping, like with every iterating function that doesn't converge01:05
DocScrutinizer05actually when i loops get more rather then less, you're not converging and tend towards oscillation or saturation. As a safeguard you could decrease the feedback (size of INCREMENT) in such case, each time i loopcount N > i loopcount N-101:09
DocScrutinizer05err < of course01:09
DocScrutinizer05actually when i loops get less rather than more, you're not converging and tend towards oscillation or saturation. As a safeguard you could decrease the feedback (size of INCREMENT) in such case, each time i loopcount N < i loopcount N-101:10
DocScrutinizer05you prolly start with one loop for i, and you should end with SAMPLES loops for i. When the number of i loops per iteration is not monotonically increasing, the algo is in trouble (though I can't fugure how that could happen when you don't increase feedback beyond factor 1)01:13
DocScrutinizer05hey THATS a fuse: /home/jr/Bilder/share-service/20150114_003.jpg15:07
DocScrutinizer05oops15:08
DocScrutinizer05http://maemo.cloud-7.de/share-service/20150114_001.jpg15:09
rohDocScrutinizer05: hehe.. proper hv fuse in rupture proof16:15
DocScrutinizer05Agilent DVM16:16
DocScrutinizer05now Keysight16:17
rohwell.. every cat2 or better needs that16:17
rohnot sure about cat116:17
DocScrutinizer05well, I've seen tons of those flimsy dia5*20mm blowfuses16:19
DocScrutinizer05but this is a real monster compared to those16:19
rohhttps://de.wikipedia.org/wiki/Messkategorie pdf on the bottom16:19
rohyou'll need a 1000V proof fuse to get a 600V rating i guess (cat2) ... one usually gets 1000V proof standart electrical gear nowadays (china can do that)16:20
rohafaik most recent gear we would buy is cat3 or better anyhow ;)16:21
rohi also got some meters with small 5x20 fuses... just dont use em for stuff in fuseboxes outside of a proper fused lab environment and everything should be fine16:23
DocScrutinizer05CAT-III16:23
DocScrutinizer05600V16:23
DocScrutinizer05except for the separate 10A jack16:24
roheh.. your voltage range isnt fused usually16:25
DocScrutinizer05IR 20kA min16:25
rohonly the seperate jacks for current are16:25
DocScrutinizer05it's a all but 10A range jack16:25
DocScrutinizer05V Ohm µA diode capacitor temperature16:26
DocScrutinizer05I actually dispise that a bit16:26
DocScrutinizer05too easy to turn the dial knob from V to A16:26
rohhehe.. thats why gossen has extra jacks and a shutter16:27
DocScrutinizer05it's only crappy Agilent ;-)16:27
rohsoooo sad ;)16:28
DocScrutinizer05U1233A16:28
rohnice. very compact16:29
rohi like the probe holders on the back16:30
DocScrutinizer05yes, though they are less useful than you'd hope for16:31
rohoh. gotta run and move before it rains16:31
DocScrutinizer05me too16:31
rohbbl16:31
--- Tue Mar 29 201600:00

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