| ??? 07/01/08 18:30 Read: times Msg Score: -1 -1 Answer is Wrong |
#156350 - here we go again Responding to: ???'s previous message |
To allow a minimum of two samples in A and B in each sector (dark or white), poll time T should be less than
T (sec)=15/(N*V) .... and you will read wrong every time high frequency noise appear. The sampling frequency must be as good as or better than the highest frequency noise you see. If you e.g. happen to sample a change of a but not the change of b you get a false reversal. Erik |
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