BarsMonster

Moscow, Russia

3.14.by

Age: 32

Software developer (in love with C++). Hardware geek (FPGA's, STM32, AVR, crazy stuff from discrete components), love LED indicators (7-segment, alphanumeric). Trying to understand ASIC design & manufacturing better at the moment. Also, trying to wrap my head around lens design, but that is not going to be that easy.

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Dec
12
awarded Popular Question
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11
awarded Notable Question
Dec
11
awarded Popular Question
Dec
7
answered diffraction grating
Dec
4
awarded Popular Question
Nov
25
comment Spectrum of generic $\mathrm{CO_2}$ laser
I only have few ZnSe lenses. So for a rough spectrometer I still need suitable diffraction grating and detector. Regarding the specs - there are nothing else, Chinese manufacturers only care about raw output power, that's it. If it is only one line - that would already answer my question, but I am not sure it supposed to be 1 line without line selection.
Nov
23
comment Spectrum of generic $\mathrm{CO_2}$ laser
This is Chinese glass sealed 40W CO2 laser. Building spectrometer for 10um range might be quite challenging task )
Nov
23
revised Spectrum of generic $\mathrm{CO_2}$ laser
added 64 characters in body
Nov
22
comment Spectrum of generic $\mathrm{CO_2}$ laser
It's a sealed tube - if I put anything at the output I'll loose power. The question is "how broad" could it be? Is it 0.1um wide? 1um wide?
Nov
21
comment Altium: reuse schematic AND pcb layout
But this involve "copying" layout, this means that it will be extremely painful to make any changes afterwards. I am looking for a way to be able to modify all these copies later without huge pain of modifying 100's of copies.
Nov
18
awarded Benefactor
Nov
18
awarded Scholar
Nov
18
accepted Products of Lead(II) nitrate decomposition
Nov
16
awarded Tumbleweed
Nov
15
comment Products of Lead(II) nitrate decomposition
That looks very close. Important difference though is that there should have been no water in the system, Lead (II) nitrate decomposition goes at 250C, when no humidity is left. So yes, there was plenty of oxygen but no water.
Nov
14
comment Products of Lead(II) nitrate decomposition
Hmm... Is N2O4 stable enough to form a separate layer (i.e. shouldn't NO2 form inside N2O4 layer and vice versa)? I had an impression that It should have been very hard to separate N2O4 and NO2 "gravitationally"...
Nov
12
awarded Supporter
Nov
12
awarded Popular Question
Nov
10
awarded Promoter
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10
awarded Student
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