Output impedance of the DUT is compared to the resistance of a reference resistor, and the comparator provides a control signal based on whether {HEAD ~ the output impedance} falls within {TAIL ~ the pre} set percentage variance of the reference resistance 
Output impedance of the DUT is compared to the resistance of a reference resistor , and the comparator provides a control signal based on whether { HEAD ~ the output impedance } falls within { TAIL ~ the pre } set percentage variance of the reference resistance
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH