Deleted member 74205
Light Dependent Resistors appear to have a spectral response; that is, at different wavelengths of light, the LDR will become less resistant than at others. For example, a cadmium sulphide LDR has a high response at 550 as shown at http://www.biltek.tubitak.gov.tr/gelisim/elektronik/dosyalar/25/LDR_NSL19_M51.pdf on page 2. This may adjust the response to light at a singe given light intensity.
I am trying to measure the change in light intensity from a singular light source as it varies with wavelength, so as you can imagine the above factor causes me a problem. Is/are there either a) a kind of LDR that as a completely uniform "spectral response" or b) other kinds of resistors which have different spectral responses that could be used to compensate for this one or c) another way of compensating for the problem?
The Attempt at a Solution
Other kinds of LDR which have the same response at different wavelengths
an LDR with a uniform spectral response
some kind of scale which adjusts for the problem
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