- Jan 4, 2012
:bowdown: Big THX for:
MarioMaster (circuit, help)
ARG (data logger, help)
Thanks for watching! :beer:
THX ARG!Looking good mate!
Nice job on the DIY PCB
THX crazyspaz!Frickin sweet! How much did the whole thing cost you? Looks great as well.
This is quite a lot but still worth it. Great work on this.THX ARG!
2x DC connector (male, female)
1x project box
cca 100 €
How to prepare calibration tool?Hm, unless you got them metered elsewhere with a calibrated LPM the assumed power isn´t a good value to calibrate a DIY LPM. 1.6A in doesn´t mean you get 1.6W out. The output can be somwhere between 900mW and at best 1.6W. All depending to the efficiency of each diode, the optics and your batteries quality.
You better build a calibration tool like I did or get your lasers metered with a calibrated LPM by using a lab powersupply as the power source while they get metered.
You need a small and thin aluminum plate that fits on the TEC. 10x10 Ohm SMD resistors and for example a constant current source like a LM317. You solder the SMD resistors to an "S" while making sure the buttom of this construct is totally flat and glue it on the aluminum plate by also using some thermal paste for better heat transfer. Then of course some leads going to the constant current source. On top of the plate with the resistors you glue some sytyro foam as an heat isulator so the entire heat will be directed to the TEC.How to prepare calibration tool?