Talk:PPM Meter Alt
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Temperature Compensation
Has anyone added a temperature compensation function yet??
Shure, why not...
Use the circuit below.
No hard to find pieces , cheap and small sensor too
For the diode probe use a piece of shrink wrap tubing for waterproofing
The results for my probe are plotted on the next graph
The precision is pretty good if you make a 2 or 3 point calibration like the one on the above graph
" Sorry for the mess maybe someone will arrange it a little ;0) "
- thank you very much, this looks very easy to make! Wikisysop
