Thinking About Using Arduino

So, in my spare time I've done some research into the many options I have for the portion of my densitometer circuit that receives the signal from the sensor and transforms it into a readable measurement of density.  The options range from having a completely analogue circuit with a readout supplied by an ammeter to a fully digitized system with an LCD display.  Because I have an interest in both analogue and digital technology, I will most likely go for a blending of the two.

In reading through online circuit schematics and expired patents, I've observed a number of variations.  One common early technique appears to employ the combination of a photoresistor and a wheatstone bridge.  This technique seems reasonable, but I'm not sure how stable or precise it is.  I will need to read more on the subject before making a decision.

Another possible solution in the digital realm is to try setting something up using an Arduino microcontroller.   The nice thing about this particular controller is that it is open source, very easy to use, the Arduino website seems very easy to understand, and many people are posting code for different applications on a number of forums.  Based upon my limited overview of what's on the web, I think it's fairly likely that there are a number of codes out there that I could adapt for use in my densitometer.  I've already ordered one Arduino microcontroller and some photoresistors, so my next steps will be to test them together in various configurations to see what works best.