Apparatus and methods for measuring resistance of conductive...

Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – Lumped type parameters

Reexamination Certificate

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C324S691000, C324S724000

Reexamination Certificate

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10427473

ABSTRACT:
Apparatus and methods for measuring the electrical resistance of conductive materials are disclosed. In one embodiment, an apparatus includes a housing, and first, second, third, and fourth conductive members projecting outwardly from the housing. The conductive members are engageable with an electrically-conductive material at a plurality of points distributed along a measurement axis. In an alternate embodiment, at least some of the conductive members include a spring-loaded portion such that a contact portion of the conductive member projects outwardly from the housing by a variable distance. In operation, the electrical resistance of the electrically-conductive material is determinable from a known current applied between the first and fourth conductive members, and a voltage measured between the second and third conductive members.

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AZom.com, Tungsten, Printed from the internet Nov. 14, 2006, 3pgs.
Nelson, Rick, High Speeds and Fine Precision Knock PCB Traces Off Pedestal, Test & Measurement World, Jan. 1, 2000, pp. 1-5, Newton, MA, USA.

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