Patent · US Expired

Electrode integrity checking

US6392416B1 · kind B1 · utility

39Cited by
12References
24Claims
0Family size

Assignee

Inventor

Key dates

Filing dateAug 10, 2000
Grant dateMay 21, 2002
Priority date—
Expiry dateAug 10, 2020

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01R31/2829
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

Impedance between potential sensing electrodes of a high impedance meter is measured by applying a ramp waveform through a capacitor coupled to one of the electrodes to generate a substantially constant current, a measure of impedance being obtained by comparing this to the potential developed across the electrodes when a different current is flowing.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.