Hydrodynamic ultrasonic probe

Patent · Tue Jan 01 00:00:00 EST 1980

OSTI ID:863511

Day, Robert A ^[1]; Conti, Armond E ^[2]

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1. Livermore, CA
2. San Jose, CA

An improved probe for in-service ultrasonic inspection of long lengths of a workpiece, such as small diameter tubing from the interior. The improved probe utilizes a conventional transducer or transducers configured to inspect the tubing for flaws and/or wall thickness variations. The probe utilizes a hydraulic technique, in place of the conventional mechanical guides or bushings, which allows the probe to move rectilinearly or rotationally while preventing cocking thereof in the tube and provides damping vibration of the probe. The probe thus has lower friction and higher inspection speed than presently known probes.

• Research Organization: General Electric Co., Boston, MA (United States)
• DOE Contract Number: E(04-3)-893
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4189944
• OSTI ID: 863511
• Country of Publication: United States
• Language: English

Related Subjects

hydrodynamic
ultrasonic
probe
improved
in-service
inspection
lengths
workpiece
diameter
tubing
interior
utilizes
conventional
transducer
transducers
configured
inspect
flaws
wall
thickness
variations
hydraulic
technique
mechanical
guides
bushings
allows
move
rectilinearly
rotationally
preventing
cocking
tube
provides
damping
vibration
friction
speed
presently
probes
probe utilizes
ultrasonic inspection
wall thickness
ultrasonic probe
thickness variation
improved probe
/73/