G - Physics – 01 – R
Patent
G - Physics
01
R
324/45
G01R 31/28 (2006.01) G01R 27/02 (2006.01) G01R 31/08 (2006.01)
Patent
CA 1216630
Abstract A method and apparatus for testing circuit boards using two or a small number of probes for making resistive and radio frequency impedance measurements e.g. capacitive measurements. The combination of resistive and impedance measurements substantially reduces the number of tests required to verify the integrity of a circuit board. The impedance or capacitive "norm" values used in testing the circuit boards can be obtained by operating the system in a learning mode. Analysis of the data provides not only fault detection but also can indicate approximate fault location.
449003
Burr James B.
Burr Robert P.
Christophersen James C.
Crowell Jonathan C.
Keogh Raymond J.
Kollmorgen Technologies Corporation
Macrae & Co.
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