And Gilles, great work with the indi driver for Cam86
Please note that my driver is for Cam84, not Cam86 !
For sure il will also try to make another one for Cam86, but only when i'll have a working board, wich might be long (children, wife, work...)
I have a D40 sensor that is still in the carrier. I was planing to debayer it and have removed the cover glass. But I broke the DSLR so I cannot track the progress of the debayering.
I could remove it from the carrier with the DMSO and use the future Cam86 for checking of the progress of debayering but I am not sure if it will survive the DMSO bath without the cover glass.
How deep does the DMSO bath need to be? Does the whole sensor get submerged?
I have a D40 sensor that is still in the carrier. I was planing to debayer it and have removed the cover glass. But I broke the DSLR so I cannot track the progress of the debayering.
I could remove it from the carrier with the DMSO and use the future Cam86 for checking of the progress of debayering but I am not sure if it will survive the DMSO bath without the cover glass.
How deep does the DMSO bath need to be? Does the whole sensor get submerged?
i think whatever you do, it will be difficult to avoid the DMSO enters the sensor: for all the glue to disappear you must stir and scrape
Gilles.
Have you seen last posts on the Ukrainian forum ?
These guys are awesome !
Where do they find time for all these investigations ? really ? Where ?
unless it's not a question of time, but a question of knowledge...
No seller for that on ebay...
hi,
I put the copy of my message sent to the Ukrainian for a few tests:
I have not yet received my cxd1267 but I mounted the Cam to do the cooling test.
For me the PMW is not good: Test 1
Cam, fan and TEC powered with 7.5 V, PWM CAM86= -12 ° C under ambient temperature in 6 minutes, and is very long to go up after the capture Test 2
Cam, fan 12 V and TEC 5.7 V, PWM CAM86 = -15 ° C under ambient temperature in 4 minutes and is very long to go up after the capture Test 3
Cam, fan 12 V and TEC 5.7 V, no PWM (bang bang per switch) = -22 ° C under ambient temperature in 2 minutes and goes up very quickly after stop of 3 seconds
I think we should try for assembly as me:
1 / PWM 100% until good temperature and 60% after and during capture
...How deep does the DMSO bath need to be? Does the whole sensor get submerged?
Hi Luka...just enough to cover the Lens or pins. No need to agitate solution or assy. Just leave for a few days and away it will come away.
Sorry been sick for last 1.5 weeks damn flu or something. Got infected...worst man flu ever! Just received dual stage TEC TES2-19003. Will test and also try new VT1 switch IRF7832.
Sorry stuck atm talking to a man about a PSU. My DIY is not working I need a new PSU now. Hopefully soon within a few days.
I tested the TES2-19003 @12V DC....managed down to -22ºC in 10 mins (was -17ºC in 5 mins, ambient 20ºC) @2.2A, a delta of 42ºC!
That said we need something constant not something minimum. However I get the impression this TEC would easily run at -15ºC ~-18ºC in camera but I need to try different try different combinations of power first.
My new thermoelectric controller display changes from points of a ºC to whole ºC when it reaches -10ºC. Limited digits....bummer!
Hello everyone
Just a word to tell you that my Cam86 works but I have a problem with the cooling which once all mounted does not give good result 10 ° less than at room temperature. Stay tuned .....
Hello everyone
Just a word to tell you that my Cam86 works but I have a problem with the cooling which once all mounted does not give good result 10 ° less than at room temperature. Stay tuned .....
Hello everyone
Just a word to tell you that my Cam86 works but I have a problem with the cooling which once all mounted does not give good result 10 ° less than at room temperature . Stay tuned .....
Hi Pat.....excellent work...but hey your hair looks....fuzzzy!
Been a little stuck atm...I had small bug that got worse then the damn Melbourne Asthma storm of the century hit. This buggered me quite a bit. Finally on steroids...should be good to go soon.
But I'm still suffering from "bench PSU fixation". I need one to finalise my TEC tests as my PSUs cut out between 10V DC to ~8V DC...right where I need to test!....mumble mumble.
I missed out on some neat HP 224B's on fleabay now looking at Korad KA-3005D (or 3005P)to pickup from wavecom....hopefully on Monday. Then I had to fix my CRO.....urgggh!
Cool story though...
Last edited by wasyoungonce; 25-11-2016 at 08:31 PM.
Wish I had the time. Great project and I have D70 CCD. Project burn out.
Is this of any help for your TEC calculations.
TEC hot side (TH) formula; where
TA = air temperature
Q = heatload - active + passive
Calculate Heatsink RQ
TH = TA + (V*I + Q)RQ
Transposing;
Heatsink Rating C/W
RQ = (TH - TA)/(V*I +Q)
or, substituting W for V*I
RQ = (TH – TA)/(W + Q)
Calculate copper plate passive heat load
Passive heat load formula Qp = kAD/L where;
k = the conductivity value of the material
A = the area of the conduction source
D = the differential between air temperature and component temperature.
L = the length of the conductive medium
k (kappa) of copper = 348 - steel k = 56 - fibreglass or plastic attributed k = 0.04.
Sensor active heat load
~250mW / MP - just an estimate.
I've attached an RQ calculator which is interesting to play with. Based on the TH formula above.