Detection, identification, and monitoring of various composite-damage types such as impact damage, delaminations, etc. using angle-beam coupled guided waves and methods and systems that permit excitation with angle-beam techniques of certain composite-material guided-wave modes that cannot be excited in isotropic metals with angle-beam methods.

Disclosed is an apparatus for ultrasonic inspection of a multi-layered, ML, plate with a stiffener attached on a first surface of the ML plate. The apparatus includes a transmitter directing a first ultrasonic beam along a first guiding medium to the ML plate, along a first axis at an angle to the first surface, the first axis being within a transmission angle with respect to a first normal perpendicular to the first surface, and a receiver for receiving a transmitted ultrasonic beam originating from the first beam after passing through the ML plate along a second axis of a second guiding medium for directing the transmitted beam. The apparatus is configured for setting the transmission angle of the first axis of the first beam to let the second axis pass through a location beneath the stiffener beneath the first surface to which the stiffener is attached.

A variable angle transducer interface block apparatus and related systems and methods are disclosed. The variable angle transducer interface block apparatus has an interface block having a mounting receiver. The interface block is positioned proximate to a material wall. A curved mounting structure is movably connected to the mounting receiver. A transducer is mounted on the curved mounting structure, wherein an angle of an acoustic signal transmitted by the transducer into the material wall is adjustable by movement of the curved mounting structure relative to the mounting receiver.

The present disclosure provides a non-destructive detecting method for weld residual stress and a probe using the same, in the above method, detecting is performed by an ultrasonic detecting probe in contact with a detected portion of a workpiece to be detected, wherein when the weld residual stress of an intersecting curve weld bead of surfaces of cylinders is detected, for the same position of the intersecting curve weld bead, one of the residual stress of an axial direction of the cylinders and the residual stress of a circumferential direction of the cylinders is detected as a principal stress. For the surface of the cylinder at one side of the intersecting curve weld bead, the detecting of the weld residual stress of the surface of the cylinder can be realized only by using an ultrasonic detecting probe having one type of curved surface.

Disclosed is a scanning system including a mechanism base; a carriage, with a first carriage side attached to a first base side and a second carriage side connected to a drive mechanism, wherein the carriage is configured to move the mechanism base; a probe associated with the carriage, the probe having a first side and a second side; an actuator assembly including an actuator and a housing having a first side and a second side, wherein a first housing side is connected to the actuator and a second housing side is connected to the carriage; and an adjustable mount having a first side and a second side, wherein a first mount side is attached to the second housing side and the second mount side is attached to the first probe side, wherein the actuator assembly is configured to maintain the second probe side in a constant contact with an object.

A reflection-diffraction-deformation flaw detection method employs a transverse wave oblique probe. When an ultrasonic transverse wave encounters a defect during propagation, a reflected wave, a diffracted wave, and a deformed wave are generated. Through a comprehensive analysis of these waves, the presence or absence of the defect is determined by the reflected wave having reflection characteristics and the diffracted wave having the diffraction characteristics. The shape and size of the defect are determined by the deformed wave having deformation characteristics, namely the deformed surface wave generated at the endpoints of the defect which propagates on the defect surface. Furthermore, by the combination of paths trailed by the deformed surface wave, the deformed transverse wave, and the deformed longitudinal wave that are generated by the defect as well as that trailed by the transmit transverse wave, causes of all those waves in the screen can be revealed.

An ultrasonic transducer that includes a delay line, an active piezoelectric element, and interposing metal conductive layer between the delay line and active piezoelectric element. The delay line and active piezoelectric element are joined so that ultrasonic waves may be coupled from the active piezoelectric element into the delay line or from the delay line into the active piezoelectric element. A via is formed, using a milling operation, in the active piezoelectric element to expose the edge of the interposing metal conductive layer between the delay line and active piezoelectric element. A conductive layer makes electrical contact between the interposing metal conductive layer and the surface of the active piezoelectric element to allow an electrical connection to be made from the surface of the active piezoelectric element to the interposing metal conductive layer.

An ultrasonic phased array transducer assembly having a single housing in which a plurality of phased array transducer subassemblies are mounted at a skewed angle relative to a leading face of the housing and to each other, with each transducer mounted on composite wedge(s) at different orientations within the housing.

Various embodiments include methods for creating an analysis data set for an evaluation of an ultrasonic test of an object comprising: providing a first and second measurement data set, each based on an ultrasonic measurement of a region of the object and a SAFT analysis thereof; associating a first equivalent defect size with a volume element of the first measurement data set associated with at least a portion of the region; associating a second equivalent defect size with a volume element of the second measurement data set associated with at least the portion of the region; creating the analysis data set having at least one volume element which is associated with at least the portion of the region; and associating a third equivalent defect size with the volume element of the analysis data set, wherein the third is formed from the maximum of the first and second sizes.

An ultrasonic transducer that includes a delay line, an active piezoelectric element, and interposing metal conductive layer between the delay line and active piezoelectric element. The delay line and active piezoelectric element are joined so that ultrasonic waves may be coupled from the active piezoelectric element into the delay line or from the delay line into the active piezoelectric element. A via is formed, using a milling operation, in the active piezoelectric element to expose the edge of the interposing metal conductive layer between the delay line and active piezoelectric element. A conductive layer makes electrical contact between the interposing metal conductive layer and the surface of the active piezoelectric element to allow an electrical connection to be made from the surface of the active piezoelectric element to the interposing metal conductive layer.