The invention comprises a device (10) for testing a test object (40), comprising an excitation system (13) for generating broadband ultrasound pulses (12′) in the test object, a detection system (20) for detecting ultrasound waves (21), which are generated through the broadband ultrasound pulses (12′) in the test object (40) and emitted by the test object (40). The device (10) comprises a processing unit (30) for processing the detected ultrasound waves (21), while the excitation system (13) being one of a thermoacoustic emitter or a pulsed laser and the detection system (20) is a broadband detection system. The excitation system (13) comprises a modulator (11) for modulating the broadband ultrasound pulses (12′). Furthermore, the invention comprises a method for testing a test object.

Disclosed is an inspection probe of an inspection system that includes an ultrasonic probe that is freely movable on a test object and irradiates the test object with an ultrasonic wave to detect a reflected wave, and a calculation unit that executes arithmetic processing according to a detection result according to the ultrasonic probe to acquire a flaw detection result of the test object. The inspection probe includes a chassis that is freely movable on a sheet material where a two-dimensional pattern disposed on the test object and indicating a position on the test object is drawn. The ultrasonic probe is fixed to the chassis so that an incident point of an ultrasonic wave that is incident onto an opposing surface of the test object from the ultrasonic probe is within an angle of view of the reader which reads the two-dimensional pattern.

A device for inspection of a tubular piece includes a cart including plural elemental ultrasound transducers distributed along at least a first direction and a guide which cooperates with an exterior surface of the piece to position the cart such that the first direction essentially corresponds to a direction transverse to the tubular piece. A control electronics, connected to the electroacoustic transducers, includes a memory storing the timed excitation laws and a controller that applies in succession a respective timed excitation law to subsets of mutually adjacent elemental transducers along the first direction. The timed excitation laws are designed so that the elemental transducers of the respective subsets jointly produce incident beams of ultrasonic waves propagating along respective directions inclined relative to a direction normal to the exterior surface of the tubular piece.

According to one embodiment, a control method includes setting a transmission angle of an ultrasonic wave to a standard angle. The control method further includes transmitting an ultrasonic wave at the set transmission angle and detecting an intensity of a reflected wave from an object. The control method further includes calculating a tilt angle based on a gradient of the intensity. The tilt angle indicates a tilt of the object. The control method further includes resetting the transmission angle based on the tilt angle.

A method for use in connection with installing a cable into a conduit having a first conduit end and a second conduit end, comprising the steps of —providing the cable with a metallic attribute, —providing within or proximate to the conduit, sensing means for sensing the metallic attribute, —introducing the cable into the first conduit end and driving it towards the second conduit end and —detecting that the sensing means has sensed the metallic attribute by sensing a change in inductance levels of the sensing means.

The disclosure relates to a measurement of the wall thickness of samples such as pipes, containers or panels in which the interior or underside is inaccessible and to a measurement of the layer thickness of coatings or linings of the samples. Disclosed are special measuring arrangements using ultrasonic transmitters and ultrasonic receivers with pitch-catch and pulse-echo configurations, and the associated method for determining the wall thickness without prior knowledge of the sound velocity in the sample. Measuring individual layer thicknesses of a multilayered system without prior knowledge of their sound velocities is also disclosed. The method and the measuring arrangement allow the wall thickness to be measured independently of the knowledge of the sound velocity of the sample. This reduces the measurement uncertainty for the wall thickness and inner diameter of the pipe and thus reduces the measurement uncertainty for a clamp-on ultrasonic flow meter.

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.

According to one embodiment, a control method includes setting a transmission angle of an ultrasonic wave to a standard angle. The control method further includes transmitting an ultrasonic wave at the set transmission angle and detecting an intensity of a reflected wave from an object. The control method further includes calculating a tilt angle based on a gradient of the intensity. The tilt angle indicates a tilt of the object. The control method further includes resetting the transmission angle based on the tilt angle.

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.

A transducer assembly for use in determining a health state of a joint (45) between first and second joined parts (42, 44); the transducer assembly comprising a transducer module (50) comprising a transducer element (100) for transmitting or receiving an ultrasonic signal to or from, respectively, the joint, and a mounting part (52) comprising an internal wedge portion (70), formed integrally with the mounting part (52), to which the transducer element (100) is fixed permanently so that the transducer module forms a unitary replaceable module.