System and Method for Resistance Measurement
First Claim
1. A network analysis device for improved measurement of resistance, comprising:
- an AC component to transmit and measure a signal for determining a resistance of a cable;
a master unit comprising a master source impedance transmitter to a receiving device resulting in a first master impedance, a plurality of diodes and a plurality of output capacitors resulting in a second master impedance, and a plurality of shunt diodes resulting in a third master impedance, and at least one coupling connector for connecting the network analysis device at the master unit to the cable;
a remote unit comprising a remote source impedance transmitter to a receiving device resulting in a first remote impedance, a plurality of diodes and a plurality of output capacitors resulting in a second remote impedance, and a plurality of shunt diodes resulting in a third remote impedance, and at least one coupling connector for connecting the network analysis device at the remote unit to the cable; and
a correction component for improving the accuracy of the resistance of the cable by correcting for error in at least one of cable capacitance deviation from nominal, cable termination deviation from nominal, and nominal cable effects.
1 Assignment
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Accused Products
Abstract
A method for improved cable resistance measuring is provided comprising coupling a measurement test device comprising a master unit and a remote unit, via at least one connector, to at least one network cable and determining a terminating impedance using field calibration. The method additionally comprises transmitting an AC signal across the network cable for determining a resistance of the network cable, and measuring a length of the network cable. The method still further comprises measuring a capacitance of the network cable, and measuring an impedance of the network cable terminated by the measurement test device. The method additionally comprises extracting the resistance of the network cable from the impedance measurement, and correcting for error in at least one of capacitance, termination resistance, and nominal cable effects for a corrected resistance value.
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Citations
20 Claims
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1. A network analysis device for improved measurement of resistance, comprising:
- an AC component to transmit and measure a signal for determining a resistance of a cable;
a master unit comprising a master source impedance transmitter to a receiving device resulting in a first master impedance, a plurality of diodes and a plurality of output capacitors resulting in a second master impedance, and a plurality of shunt diodes resulting in a third master impedance, and at least one coupling connector for connecting the network analysis device at the master unit to the cable; a remote unit comprising a remote source impedance transmitter to a receiving device resulting in a first remote impedance, a plurality of diodes and a plurality of output capacitors resulting in a second remote impedance, and a plurality of shunt diodes resulting in a third remote impedance, and at least one coupling connector for connecting the network analysis device at the remote unit to the cable; and a correction component for improving the accuracy of the resistance of the cable by correcting for error in at least one of cable capacitance deviation from nominal, cable termination deviation from nominal, and nominal cable effects. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
- an AC component to transmit and measure a signal for determining a resistance of a cable;
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11. A method for improved cable resistance measuring, comprising:
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coupling a measurement test device comprising a master unit and a remote unit, via at least one connector, to at least one network cable; determining a terminating impedance using field calibration; transmitting an AC signal across the network cable for determining a resistance of the network cable; measuring agent of the network cable; measuring a capacitance of the network cable; measuring an impedance of the network cable terminated by the measurement test device; extracting the resistance of the network cable from the impedance measurement; and correcting for error in at least one of capacitance, termination resistance, and nominal cable characteristics for a corrected resistance value. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification