Ultrasonic testing device and method
AssigneeThe Standard Oil Company
InventorsLee A. Sheridan, Gary S. Kovener, Bernard Ostrofsky, Hilbert J. Nebelsiek
Life of this patent
Estimating the term…
Abstract
This invention relates to an apparatus and method for non-destructive ultrasonic testing, such as flaw detection and thickness measurement, of elongated bodies, such as pipes and rods or coatings thereon. Ultrasonic signals are sent and received by transducers held in a rotating member while being substantially submersed in an acoustically transmitting liquid such as water. The rotating member is supported by bearings which are resistant to the transmitting liquid.
Claims20
An apparatus for the ultrasonic non-destructive testing of elongated bodies or coatings thereon comprising a rotating member holding one or more cylindrical focus transducers, said transducers capable of sending ultrasonic pulses and receiving corresponding echo pulses back as said rotating member is rotated on the axis relative to the body being tested while said body moves axially with respect to said rotating member, said apparatus containing water resistant bearings, functionally disposed for supporting the rotating member.
An apparatus for the non-destructive ultrasonic testing of elongated bodies comprising:
- a rotating member holding one or more cylindrical focus transducers and capable of rotation about the axis of an elongated body;
- a static member;
- and
- bearings functionally disposed so that said bearings support the rotating member within the static member and said bearing being resistant to an acoustically transmitting liquid.
An apparatus for the non-destructive ultrasonic testing of elongated bodies which comprises a rotor member holding one or more cylindrical focus transducers, and a static member which supports said rotor member by means of bearings, said apparatus being substantially immersed in an acoustically transmitting liquid, and said bearings being resistant to physical or chemical attack by said liquid.
A method for the ultrasonic non-destructive testing of elongated bodies or coatings thereon comprising rotating an apparatus holding one or more cylindrical focus transducers while said transducers send ultrasonic pulses and receive corresponding echo pulses back as said apparatus is rotated on the axis relative to the body being tested while said body moves axially with respect to said apparatus and while said apparatus is substantially submersed in an acoustically transmitting liquid.
An apparatus for the ultrasonic non-destructive testing of elongated bodies or coatings thereon comprising a rotating member holding one or more transducers, said transducers capable of sending ultrasonic pulses and receiving corresponding echo pulses back as said rotating member is rotated on the axis relative to the body being tested while said body moves axially with respect to said rotating member, said apparatus containing Torlon bearings, functionally disposed for supporting the rotating member.
An apparatus for the non-destructive ultrasonic testing of elongated bodies comprising:
- a rotating member holding one or more transducers and capable of rotation about the axis of an elongated body;
- a static member;
- and
- Torlon bearings functionally disposed so that said bearings support the rotating member within the static member and said bearings being resistant to an acoustically transmitting liquid.
An apparatus for the non-destructive ultrasonic testing of elongated bodies which comprises a rotor member holding a transducer or transducers, and a static member which supports said rotor member by means of Torlon bearings, said apparatus being substantially immersed in an acoustically transmitting liquid, and said bearings being resistant to physical or chemical attack by said liquid.
Dependencies are inferred from the claim text.