| 摘要 |
To measure the resistance from one end of a conductor (4) to the other or between conductors, for the purpose of testing them, by establishing an electric current in the conductor, without any mechanical contact therewith, this method includes providing opposite and proximate to the conductor (4)a plate (2) that has a plurality of conductive zones (8, 10) capable of being individually taken to any adjustable electric potentials, applying a beam of particles (7) to a first point (C) of the conductor (4) to extract electrons from it, and injecting electrons at a second point (B) of the conductor (4).
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