Positioning assembly for a transducer in a boresonic inspection

Details Positioning assembly for a transducer in a boresonic inspection Positioning assembly for a transducer in a boresonic inspection

1989-05-08

1991-02-12

Williams, Hezron E.

Measuring and testing

Vibration

By mechanical waves

73634, G01N 924

Patent

active

049914413

ABSTRACT:
An immersion base ultrasonic inspection system for interrogating the bore and near bore material of turbine and generator rotors by passing ultrasonic search units through the rotor bore. This system utilizes variable focus array inspection transducers in a shear mode inspection of the near bore material. The system includes a positioning assembly for a transducer which includes carriage means for supporting the transducer and a first positioning means for tilting one end of the carriage means in a radial axial plane whereby the transducer may be positioned at an angle to a longitudinal axis of the system. A second positioning means is provided for circumferentially rotating the transducer to a known and repeatable angular position. Position resolver means are coupled to the first and second positioning means.

REFERENCES:
patent: 3077768 (1963-02-01), Allardt et al.
patent: 3780571 (1973-12-01), Wiesener
patent: 3863496 (1975-02-01), Hiramatsu et al.
patent: 4282755 (1981-08-01), Gardineer et al.
patent: 4472346 (1984-09-01), Takeda et al.

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