Method and eddy current test probe for the inspection of screws

Details Method and eddy current test probe for the inspection of screws Method and eddy current test probe for the inspection of screws

1985-11-06

1988-11-29

Strecker, Gerard R.

Electricity: measuring and testing

Magnetic

With means to create magnetic field to test material

324240, 324262, G01N 2790, G21C 1700

Patent

active

047884991

ABSTRACT:
A method for the inspection of screws with an eddy current test probe including an insulating material body having a linear contact surface and at least one coil disposed in the body, includes orienting the coil transverse to threads of a reactor pressure vessel setscrew to be inspected, feeding high-frequency alternative current through the at least one coil, generating a coil field covering at least two threads, and guiding the linear contact surface along the threads, and a device for carrying out the method.

REFERENCES:
patent: 2519367 (1950-08-01), Gunn et al.
patent: 2958818 (1960-11-01), Cowan et al.
patent: 3036266 (1962-05-01), Hulls
patent: 3495166 (1970-02-01), Lorenzi et al.
patent: 3939404 (1976-02-01), Tait
patent: 4547962 (1985-10-01), de Walle et al.

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