UV/Vino
| Projects | |
|---|---|
| Participants | V |
| Skills | |
| Status | Active |
| Niche | Electronics |
| Purpose | World domination |
Interface older style UV/Vis detectors with a nanode instead of a chartrecorder, write interpretation software
Got a couple of different Uv/VIS detectors from the mid 80's (2 Varian's, 1 is not really operational since the deuterium lamp is very weak and then there is a nice straighforward really oldskool one but i cannot remember the brand) they are normally hooked up to a chart recorder the varian ones seem to send a 0-12V signal and the other one a 0-1v signal corresponding to the Au (absorbance). The plan is to connect these detectors with the a/d converter of the nanode, write a program for the nanode that makes it read the analog port at a defined interval and then print the 10bit value including a timestamp and write software that reads the data provided by the nanode to interpretate the signals over a defined timeline (HPLC run time) providing a textual and graphical presentation.
For the lulz i started to play around with SDL libraries to draw the peaks but this does not feel very sane and im switching to PyGTK, a great oportunity to get to learn a bit more on this (and of course feel free to bash my code once it is done because it _will_ bee ugly)
planning:
1. Solder nanode kit together - done (after sitting quietly in a corner soldering half a sunday :P).
2. Measure the peak voltage at full absorbance on both spectrometers, the varian should give 12v at full absorbance and thus needs to bee downregulated to a bit under 5V. Knowing nothing about electronics i learned atleast that a series of resistors is a bad idea due to non constant load therefore i hope a simple voltage regulator will suffice but if anyone has input on this i would love to hear about it. The other detector is supposed to give 1v at full absorbance If correct then the 1 volt can hopefully bee ranged. - About to check this out (06-03-2013)
3, Write a simple program for the nanode to do the writing. - Wrote a simple program for this and will improve/add features once the GUI is somewhat together
4. Write a simple GUI that will draw the absorbance peaks niceley over a timeframe using PyGTK. - Reading tutorials :)
