Ultrasonic beam aiming apparatus and method for nondestructive t

Details Ultrasonic beam aiming apparatus and method for nondestructive t Ultrasonic beam aiming apparatus and method for nondestructive t

1990-04-02

1992-04-28

Williams, Hexron E.

Measuring and testing

Vibration

Sensing apparatus

G01D 532

Patent

active

051077094

ABSTRACT:
The accurate positioning of an ultrasonic beam (21) to nondestructively test an object (11) is achieved by an ultrasonic beam aiming apparatus (10) including an ultrasonic transducer (20) generating an ultrasonic beam (21) having a focal point (22) and axis (23), and a point-source lamp (30) and mirror (31) generating a visible light beam (32) having a focal point (33) and axis (34). The visible light beam focal point (33) is selectively coaxially movable into and out of coincident at points exterior and interior to the object (11). The location of the ultrasonic beam focal point (22) may be found by aligning the ultrasonic beam focal point (22) and the visible light beam focal point (33) to coincide at an alignment spot, and moving the aligned ultrasonic beam focal point (22) to a point of interest within the object while maintaining the visible light beam focal point (33) at the alignment spot.

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patent: 3728027 (1973-04-01), Watanabe
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patent: 4274289 (1981-06-01), Weiss et al.
patent: 4484569 (1984-11-01), Driller et al.
patent: 4554834 (1985-11-01), Prinz et al.
patent: 4760304 (1988-07-01), Oliver

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