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| Resin systems for high energy electron curable resin coated webs |
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| Plural layered coated abrasive |
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| Apparatus for humidifying a gas |
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| Atomizing and mixing apparatus |
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| Apparatus for impregnating water with CO.sub.2 using a stepped channel with multiple gas inlets |
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| Atmospheric deaerator unit |
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Hydrodynamic ultrasonic probe
| Details |
Inventors: Day, Robert A.; Conti, Armond E.;
Assignee: The United States of America as represented by the United States (Washington, DC)
Primary Examiner: Ciarlante; Anthony V.
Assistant Examiner:
Attorney, Agent or Firm: Lupo; R. V., Gaither; Roger S., Carnahan; L. E.
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. |
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DETAILED DESCRIPTION The present invention provides a probe for ultrasonic tube inspection systems which fills the above-mentioned need in the prior art.
The probe of this invention provides both lower friction and higher inspection speed, thus greatly reducing the problems associated with surface friction and the associated costs of inspection time.
The probe of this invention utilizes a hydraulic technique, rather than mechanical guides or bushings, to maintain the probe location.
The hydrodynamic ultrasonic probe of this invention allows for rectilinear and rotational movement of the probe while preventing cocking thereof in the tube and damping vibration of the probe.
Therefore, it is an object of the invention to provide an improved ultrasonic probe for inspection of workpieces, such as tubes, pipes, etc.
A further object of the invention is to provide a hydrodynamic ultrasonic probe which reduces friction and increases inspection speed of tubes, etc.
Another object of the invention is to provide an ultrasonic tube inspection probe which utilizes a hydraulic approach for maintaining the probe in proper position within the tube.
Another object of the invention is to provide an ultrasonic probe for tube, etc.
inspection which allows the probe to be maintained in the center of the tube while translated or rotated without physically touching the inside of the tube.
Other objects of the invention will become readily apparent to those skilled in the art from the following description and accompanying drawings.
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Liquid Purification 
