Abstract:
An ultrasonic testing system includes one or more matrix array ultrasonic probes, a probe positioning assembly, and an analyzer. The assembly is configured to position the probes for ultrasonic communication with a target, such as a wheel, including at least one coupling validation geometry. Each of the probes is configured to emit a validation ultrasonic signal directed towards a coupling validation geometry within the wheel, measure its emitted validation ultrasonic signal after reflection from a respective coupling validation geometry, and at least one of emit an ultrasonic inspection signal and measure an inspection ultrasonic signal reflected from a defect positioned within an inspection area of the wheel. The analyzer is configured to receive the measured validation ultrasonic signal and the measured inspection ultrasonic signal, determine that the measured validation ultrasonic signal matches a reference validation signal, and output a first notification representing validation of the measured inspection ultrasonic signal.
Abstract:
The invention relates to a method for retrieving bolt length measurements of a bolt securing two parts of a structure, wherein the bolt has a bolt head including a top surface and a threaded part including a bottom surface and wherein an ultrasonic transducer comprises a power supply, a transducer element and a communication interface, the method comprising the steps of: attaching one ultrasonic transducer to either the top surface or the bottom surface of the bolt by means of a coupling agent, performing a plurality of bolt length measurements by means of the ultrasonic transducer, and transmitting at least one of the plurality of bolt length measurements or derived information hereof from the ultrasonic transducer to a control device.
Abstract:
Disclosed is an ultrasound array comprising a plurality of ultrasound transducer elements (20) on a carrier (10), said carrier further carrying an actuator arrangement (30, 30') of a material having an adjustable shape in response to an electromagnetic stimulus, e.g. an electro activepolymer or optically responsive polymer, wherein the material is arranged to change the orientation of said ultrasound transducer elements in response to said stimulus. This facilitates configurable beam shaping and/or body contour matching with the ultrasound array. An ultrasound system (100) comprising such an ultrasound array is also disclosed.
Abstract:
A system for inspecting railroad rail (10) using phased array ultrasonic technology includes both high-speed and high-resolution inspection modes that obviate the need for an operator to dismount the truck (12) to perform detail inspection. In high-speed inspection mode, the phased array probes (30-36) operate at fixed angles with respect to the rail (10) to identify potential rail defects as the vehicle (12) moves along the rail (10). The vehicle (12) can then return to the location of a potential rail defect and switch to a high-resolution inspection mode in which the phased array probes (30-36) sweep over a range of beam angles at the location of a potential rail defect.
Abstract:
The invention encompasses systems and methods for detecting and/or monitoring the integrity and/or condition of cement, structures incorporating cement including, for example, highways, bridges, buildings, and wellbores using Nano-Electro-Mechanical System (NEMS)-based and/or Micro-Electro-Mechanical System (MEMS)-based data sensors. The disclosure further encompasses systems and methods of monitoring the integrity and performance of a structure and the surrounding formation of structure through the life of the structure using NEMS/MEMS-based data sensors.
Abstract:
A method for the nondestructive testing of a test object by ultrasound, the method including generating a pulsed ultrasonic field in the test object by means of an array of individually drivable ultrasonic transmitting transducers acoustically coupled to the test object, by the ultrasonic transmitting transducers each being driven with a specific analog transient excitation signal, wherein each analog transient excitation signal is generated based on an ultrasonic transmitting transducer-specific stored digital transient excitation function, receiving resulting echo signals from the test object by means of an array of individually drivable ultrasonic receiving transducers, with each ultrasonic receiving transducer providing an analog time-resolved echo signal, temporarily storing the time-resolved, transducer-specific, digitized echo signals in the form of an echo signal set, and applying a plurality of different reception processing rules to the echo signal set.
Abstract:
An ultrasound diagnostic apparatus includes: a probe that includes a transducer array including transducers, which are activated as a first transducer group and a second transducer group, is configured to transmit ultrasound waves by at least one transducer included in the first transducer group and at least one transducer included in the second transducer group, and to detect echo signals from an object; and a controller configured to select a number of transducers to be activated in the first transducer group and in the second transducer group based on the object or a measurement result, generate echo images from the echo signals, and measure an object change movement speed, which is a speed at which a change in the object moves, from the echo images.
Abstract:
A hollow structure like a pipeline is inspected using an array of ultrasound transmitters located within the hollow structure distributed over different radial directions from a center of the array. Parameters such as ellipticity, defining a shape and/or orientation of an inner surface of a wall of the hollow structure are first determined based on measured delays between transmission of ultrasound pulses from the transmitters to reception of first reflections of those ultrasound pulses. Parameters may be used that define an elliptically shaped cross-section of the inner wall surface for example. Next an ultrasound wavefront composed of joint transmissions from the transmitters along at least a sector of the array is transmitted, using relative time delays between waves transmitted by the respective ones of the transmitters to compensate for estimated differences between travel times from the transmitters to the shape defined by the parameters. Reflections of the joint transmissions are detected. The reflections may be detected by computing derivatives with respect to frequency of phase values of Fourier transforms of the reflected signals and detecting peaks in the size of the computed derivatives of the phase values.
Abstract:
A pulse-wave ultrasound production well tubing wireline logging method using a logging tool (0) communicating via a wireline to a surface read-out unit, - said logging tool provided with a frustoconical ring-shaped linear ultrasound transducer array (04) comprising ultrasound transducer elements (041 ), - the tool arranged for switching between a PW echo backscatter imaging processing mode and a Doppler measurement processing mode, for transmitting, - generating a number (n) of digital signals, and beam-forming said signals to represent ultrasound beams (A,B), converting said digital signals to voltage signals, connecting the voltage drive signal channels to oppositely directed consecutive series of said transducer elements (041 ), and transmitting wave pulses as said two opposite ultrasound beams (A) and (B) to the fluid in the tubing; and - for receiving, - receiving returning signals and converting to analogue voltage signals, amplifying the voltage signals, converting them to digital signals and beamforming them, and combining the digital signals to a received digitized ultrasound time signal series for each ultrasound beam (A) and (B), - in said PW backscatter mode, forming a an ultrasound image data for beams (A) and (B), - in said Doppler mode, producing Doppler measurements for said focused point for each beams (A) and (B) - sending images and Doppler measurement to the surface read-out unit.