napatova referencia

[balu]

Ved si to dnes patricne preberieme s dodavatelom :)


> On 3 Jul 2020, at 06:51, Jaroslav Buchta <jaroslav.buchta na hascomp.cz> wrote:
> 
> To me taky hned napadlo kdyz jsem to docetl :-D
> Dne 03.07.2020 v 6:39 Zuffa Jan napsal(a):
>> No mal by si zavolat do Fluke...
>> A nahlasit problem. :)
>> 
>> j.
>> 
>> -----Original Message-----
>> From: Hw-list [mailto:hw-list-bounces na list.hw.cz] On Behalf Of Daniel Valuch
>> Sent: 2. júla 2020 18:27
>> To: hw-list na list.hw.cz
>> Subject: Re: napatova referencia
>> 
>> Neviem uplne presne ako je ta Zenerka vyrobena na kremiku, v kazdom pripade je to burried zener, t.j. pod povrchom a uplne prekryta oxidom, aby sa tam nedostavali ziadne vonkajsie vplyvy, teda okrem teploty.
>> 
>> Ten skok je ca. 4ppm, co nie je vo svete beznych suciastok nijak vela, ale v pripade mojej referencie ma vylozene sere, pac doteraz (za rok) bola priblizne rovnako stabilna ako Fluke 8588A s ktorym ju meriam :-)
>> 
>> b.
>> 
>> 
>>> On 02/07/2020 14:19, Tomas Dresler wrote:
>>> Ze by v tom PN prechodu Zenerky cestovala nejaka nečistota? Je to vetsinou docela diskretni...
>>> 
>>> --
>>> S pozdravem
>>> 
>>> Tomáš Dresler
>>> +420 606 756 606
>>> 
>>> -----Original Message-----
>>> From: Hw-list [mailto:hw-list-bounces na list.hw.cz] On Behalf Of Daniel
>>> Valuch
>>> Sent: Thursday, July 2, 2020 1:47 PM
>>> To: hw-list na list.hw.cz
>>> Subject: Re: napatova referencia
>>> 
>>> hmmm, zaujimave. 30uV pukance su tam posledne 4 dni stale. Uz sa to trochu ustalilo a v jednom stave je to aj pol dna, vytvoril sa novy stav zhruba v strede. Ked sa vratim asi ju otvorim a prebehnem niekolko krat teplovzduchom alebo to necham otvorene cyklovat v klimatickej komore.
>>> Som zvedavy ci sa tie defetky uvolnia
>>> 
>>> http://dvaluch.web.cern.ch/temp/referencia/pukance.png (uplne dole,
>>> Vzener)
>>> 
>>> b.
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