| http://www.w3.org/ns/prov#value | - The relationship between the number of counts and the scan rate, with scan rate being defined as the rate of movement of the light beam across a bar code in terms of distance per unit time, is given by: I. (counts)=(clock rate)???(bar width)/(scan rate); and II. (scan rate)=K(scan frequency)???(distance between bar code and bar code reader), where K is a constant.
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