Spring release mechanism for electromagnetic acoustic transducer

Details Spring release mechanism for electromagnetic acoustic transducer Spring release mechanism for electromagnetic acoustic transducer

1995-02-24

1998-04-21

Brock, Michael

Measuring and testing

Vibration

By mechanical waves

324219, 324262, 33DIG1, G01N 2904

Patent

active

057419736

ABSTRACT:
In an electromagnetic acoustic transducer or EMAT, a spring release mechanism comprises a frame or carriage and, if necessary at least one movement element for permitting movement across a surface of a workpiece. A magnet is movable against the surface past the frame or carriage and a base supports the magnet. The spring is connected between the frame and the base for biasing the base away from the frame to urge the magnet away from the surface.

REFERENCES:
patent: 4449408 (1984-05-01), Brooks et al.
patent: 4510447 (1985-04-01), Moyer
patent: 4769598 (1988-09-01), Krieg et al.
patent: 5254944 (1993-10-01), Holmes et al.
patent: 5514956 (1996-05-01), Maxfield et al.

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