Electricity: measuring and testing – Testing potential in specific environment – Voltage probe
Patent
1985-02-27
1988-01-26
Eisenzopf, Reinhard J.
Electricity: measuring and testing
Testing potential in specific environment
Voltage probe
324158P, 324158F, 324149, 30367, G01R 3102, G01R 1067
Patent
active
047219033
ABSTRACT:
Improvements in electrical test probes. The problem with known probes is that degree of penetration into a material being tested is inconsistent and complete penetration of protective coatings is not reliably achieved. The device and method of the invention provide consistent and reliable penetration and electrical contact. Probe assembly (30) includes a probe tip (44) for penetrating a protective coating (4). An off-center punch (42) transmits an axially outward impact force of a predetermined magnitude to tip (44) when tip (44) is urged against coating (4) to move tip (44) axially inwardly against the force of springs (56, 74). The force compressing spring (56) is suddenly released to allow spring (56) to apply an abrupt impact force to tip (44). The degree of impact and penetration may be adjusted for different coating thicknesses by adjusting the stiffness of spring (56).
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Harsch Franklin D.
Lazaro, Jr. Luis J.
Burns W.
Eisenzopf Reinhard J.
Pauly Joan H.
The Boeing Company
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