Method and apparatus for measuring impedance across pressure...

Details Method and apparatus for measuring impedance across pressure... Method and apparatus for measuring impedance across pressure...

2006-04-25

2006-04-25

Deb, Anjan (Department: 2858)

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Lumped type parameters

C324S525000

Reexamination Certificate

active

07034554

ABSTRACT:
The difference in voltages measured upstream and downstream of a pressure junction in a power distribution system produced by the energizing power is divided by the measured current to calculate a value that is a function of the impedance of the pressure junction, which is monitored for deterioration. To eliminate noise resulting from dividing a small number by a large number and transients in the power distribution system, the impedance is calculated from the squares of the voltage differences and currents for a large number of samples, and the change between successive calculations is limited to produce a stable median value.

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