Inspection method
AssigneeKobe Steel, Ltd.
InventorsKota Nomura, Yasuhiro Wasa, Toshihide Fukui
Life of this patent
Estimating the term…
Abstract
A method for inspecting a test object for defects by using an ultrasonic probe including a transmitter, a wedge, and a receiver, the method comprising: placing the ultrasonic probe on the test object; transmitting ultrasound from the transmitter into the wedge such that surface waves propagate along a surface area of the test object; and determining that there is a defect in a part of the test object overlapped with the wedge when the receiver receives an ultrasonic echo, after the transmission of the ultrasound by the transmitter, in a time shorter than a time required to receive a front end-reflected ultrasonic echo produced by reflection of the surface waves at a front end of the wedge.
Claims3
A method for inspecting a test object for defects using an ultrasonic probe that includes a transmitter for transmitting ultrasound, a wedge holding the transmitter at an angle allowing the ultrasound transmitted from the transmitter to propagate as surface waves along a surface area of the test object, and a receiver for receiving an ultrasonic echo produced by reflection of the ultrasound, the method comprising the steps of:
- placing the ultrasonic probe on the test object;
- transmitting the ultrasound from the transmitter into the wedge such that the surface waves propagate along the surface area of the test object;
- and
- determining that there is a defect in a part of the test object overlapped with the wedge when the receiver receives an ultrasonic echo, after the transmission of the ultrasound by the transmitter, in a time shorter than a time required to receive a front end-reflected ultrasonic echo produced by reflection of the surface waves at a front end of the wedge in a propagation direction of the surface waves.
Dependencies are inferred from the claim text.