Recent content by johnny1985

even though i am interested in only 1 color i still have to use the diffraction grating? cause i thought by shining a 1color LED will be a more straight forward case

so by inserting an optical filter will help the PD detect the wavelength?

in figure1 they show the Absorbance Spectrum of Grape Kool-Aid and in figure 2 they showed Output Spectrum of Red LED or missed out something?

ok, but how come in the link i provided, they were able to use LABVIEW to plot "intensity vs wavelength" graph?? i will continue to understand the links you guys have provided and hopefully think of something,

so replacing the PD with a CCD array in my link will do better? but for the llink, if i were to shine a monocolor light it will give me the wavelength right? or wrong?

but from this i found, is it not doable? https://www.chem.wisc.edu/deptfiles/mcclain/Lab 4 LED Spectrometer 2010.pdfnot sure if this is the correct way to replace the NI-USB6008 interface, but my idea is instead of using NI-USB 6008 i will replace it with arduino UNO to my PC and use ENERGIA to...

Hi people not sure if this is feasible but this is the idea and like to hear your comments i wan 2 shine a specific color of light (could be colored LED, normal light,) to determine the wavelength n intensity of it, so i am thinking of using a photodiode and an opamp connected with a...