| http://www.w3.org/ns/prov#value | - According to some embodiments the scanhead(s) 70 generates analog output(s) which are amplified by an amplifier 58 and converted into a digital signal by means of an analog-to-digital converter (ADC) unit 52 whose output is fed as a digital input to a controller or processor such as a central processing unit (CPU), a processor or the like.
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