| http://www.w3.org/ns/prov#value | - The amplified signal on the signal path 108 is an analog signal (a DC signal) which is proportional to the intensity of the light received at the base junction of the photo-transistor 102 or, in other words, the analog signal on the signal path 108 is indicative of and more particularly proportional to the intensity of the light transfered between the sending end 16 of the sending light conductor
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