Electricity: measuring and testing – Conductor identification or location – Inaccessible
Patent
1981-04-23
1983-09-13
Krawczewicz, Stanley T.
Electricity: measuring and testing
Conductor identification or location
Inaccessible
324421, G01R 2702
Patent
active
044045182
ABSTRACT:
A method and device is disclosed for the measurement of contact resistances of galvanic surfaces. Such contact resistances are subject to very great fluctuations. In order to measure the contact resistance, several wire pieces are provided with the galvanic surface. These wire pieces are stacked crosswise over one another and are pressed against one another with a defined pressure. The total resistance is measured between the uppermost and lowermost wire piece, and this total resistance is then divided by the number of points of contact.
REFERENCES:
Garte: "What Designers Need to Know about Low-Voltage Contacts"-Electronics-vol. 48-Oct. 3, 1975-pp. 105-107.
Kameoka et al.: "Very High and Very Low Resistances . . . ", Hewlett Packard Journal-vol. 22-No. 7-Mar. 1971.
Olsowski: "Prazisions-Konstant-Stromquelle . . . ", Elektronik-(Germany)-vol. 7-p. 88-Apr. 5, 1979.
Pivnichny et al.: "Four-Point Method Tests Solder Joints", Electronics (USA)-vol. 48-No. 7-p. 106-Apr. 3, 1975.
Zezulka: "A New Method for Evaluation of Contact Resistance", Sdelovaci Tech. (Czechoslovakia)-vol. 27-No. 3-Mar. 1979.
Boone Didier
Cousin Rolf
Krawczewicz Stanley T.
Siemens Aktiengesellschaft
Solis Jose M.
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