- #1
Telemachus
- 835
- 30
Hi. I am willing to make an experiment with light. The idea is to have a light source (specifically a led light) and a photodiode to detect the light and make some spectroscopy. The photodiode has to detect the light in the same frequency that is emitted by the led.
I'm not an expert in electronics, so I don't really know where to start. The light led just has to be turned on at constant intensity all the time. But I would like to also have that intensity measured at the emission point to compare with the intensity detected by the diode at the other side of some material to be characterized. I had a lab of electronics lots of years ago, where we used protoboards and all that stuff, but I don't really know how to do this thing, how to build the circuits, and how to the detect the current induced by the diode and take it to a computer. My only contact with electricity was in that lab. I would also like to have the less noise to signal ratio as possible.
Any recommendations, ideas, or sources to get started?
Thanks.
I'm not an expert in electronics, so I don't really know where to start. The light led just has to be turned on at constant intensity all the time. But I would like to also have that intensity measured at the emission point to compare with the intensity detected by the diode at the other side of some material to be characterized. I had a lab of electronics lots of years ago, where we used protoboards and all that stuff, but I don't really know how to do this thing, how to build the circuits, and how to the detect the current induced by the diode and take it to a computer. My only contact with electricity was in that lab. I would also like to have the less noise to signal ratio as possible.
Any recommendations, ideas, or sources to get started?
Thanks.