Waves from cement bond logging with a sonic logging-while-drilling tool (LWD-CBL) are often contaminated with tool waves and may yield biased CBL amplitudes. The disclosed LWD-CBL wave processing corrects the first echo amplitudes of LWD-CBL before calculating the BI. The LWD-CBL wave processing calculates a tool wave amplitude and a phase angle difference as the difference of the phases between the tool waves and casing waves. The tool waves are then used to correct the LWD-CBL casing wave amplitude and remove errors introduced from tool waves. In conjunction with the sets of operations described, the LWD-CBL wave processing also include array preprocessing operations. Array preprocessing may employ variation of bandpass filtering and frequency-wavenumber (F-K) filtering operations to suppress tool wave.

Systems and methods for improved ultrasonic testing are provided. An ultrasonic testing system can include an ultrasonic probe and an ultrasonic controller in electrical communication with the ultrasonic probe. The ultrasonic probe can include a plurality of ultrasonic transducers. The ultrasonic controller can be configured to generate one or more driving signals operative to cause the plurality of ultrasonic transducers to generate respective ultrasonic waves. A combination of the ultrasonic waves can form an ultrasonic waveform having one or more characteristics specified by the one or more driving signals. The ultrasonic controller can be further configured to change the one or more driving signals to adjust at least one characteristic of the ultrasonic waveform.

Systems and methods for improved ultrasonic testing are provided. An ultrasonic testing system can include an ultrasonic probe and an ultrasonic controller in electrical communication with the ultrasonic probe. The ultrasonic probe can include a plurality of ultrasonic transducers. The ultrasonic controller can be configured to generate one or more driving signals operative to cause the plurality of ultrasonic transducers to generate respective ultrasonic waves. A combination of the ultrasonic waves can form an ultrasonic waveform having one or more characteristics specified by the one or more driving signals. The ultrasonic controller can be further configured to change the one or more driving signals to adjust at least one characteristic of the ultrasonic waveform.

The present invention discloses a method for extending the detection range of a structural health monitoring (SHM) system. A structure being monitored is scanned multiple times. A scan with no collection delay covers an original detection area of the SHM system. Scans with collection delays cover extended detection areas. The SHM system's detection range is extended when results of multiple scans with different collection delays are combined.

A scanning system for imaging structural features below the surface of an object, the scanning system comprising a transducer module configured to transmit ultrasound signals towards an object and to receive ultrasound signals reflected from the object whereby data pertaining to an internal structure of the object can be obtained; an analysis module coupled to the transducer module and configured to analyse received ultrasound signals to identify a feature in the received ultrasound signals; and a gating module configured to gate received ultrasound signals in dependence on the identified feature.

A scanning system for imaging structural features below the surface of an object, the scanning system comprising a transducer module configured to transmit ultrasound signals towards an object and to receive ultrasound signals reflected from the object whereby data pertaining to an internal structure of the object can be obtained; an analysis module coupled to the transducer module and configured to analyse received ultrasound signals to identify a feature in the received ultrasound signals; and a gating module configured to gate received ultrasound signals in dependence on the identified feature.

Provided is an ultrasonic testing device with which it is possible to suitably detect internal defects in an article to be tested. For this purpose, the ultrasonic testing device comprises: an ultrasonic probe that generates ultrasonic waves and transmits the same to the article to be tested, and that receives reflected waves reflected from the article to be tested; and a computation processing unit. The computation processing unit: (A) sets a gate indicating a start time and a time duration for a subject of analysis of the reflected waves; (B) as pertains to each of a plurality of measurement points, (B1) acquires a reflection signal indicating the intensity of the reflected waves at each time, (B2) calculates a difference signal that is the difference between the reflection signal and a reference signal, and (B3) calculates a feature amount with respect to the difference signal within the gate; (C) detects defects on the basis of the feature amounts for the plurality of measurement points; and (D) outputs information indicating the depth of the defects along the transmission direction of the ultrasonic waves.

Provided is an ultrasonic testing device with which it is possible to suitably detect internal defects in an article to be tested. For this purpose, the ultrasonic testing device comprises: an ultrasonic probe that generates ultrasonic waves and transmits the same to the article to be tested, and that receives reflected waves reflected from the article to be tested; and a computation processing unit. The computation processing unit: (A) sets a gate indicating a start time and a time duration for a subject of analysis of the reflected waves; (B) as pertains to each of a plurality of measurement points, (B1) acquires a reflection signal indicating the intensity of the reflected waves at each time, (B2) calculates a difference signal that is the difference between the reflection signal and a reference signal, and (B3) calculates a feature amount with respect to the difference signal within the gate; (C) detects defects on the basis of the feature amounts for the plurality of measurement points; and (D) outputs information indicating the depth of the defects along the transmission direction of the ultrasonic waves.

An ultrasonic wave inspection device includes: a transmitter that outputs ultrasonic waves toward an inspection object; a receiver that receives at least first ultrasonic waves passed through the inspection object, among the ultrasonic waves output from the transmitter; a member that regulates a second propagation path, the second propagation path being a portion of propagation paths through which the output ultrasonic waves reach the receiver, and the second propagation path being different from a first propagation path through which the first ultrasonic waves reach the receiver; and a signal controller that extracts ultrasonic waves of a predetermined time segment from at least the first ultrasonic waves, the predetermined time segment starting from a time when the first ultrasonic waves is received.

An ultrasonic wave inspection device includes: a transmitter that outputs ultrasonic waves toward an inspection object; a receiver that receives at least first ultrasonic waves passed through the inspection object, among the ultrasonic waves output from the transmitter; a member that regulates a second propagation path, the second propagation path being a portion of propagation paths through which the output ultrasonic waves reach the receiver, and the second propagation path being different from a first propagation path through which the first ultrasonic waves reach the receiver; and a signal controller that extracts ultrasonic waves of a predetermined time segment from at least the first ultrasonic waves, the predetermined time segment starting from a time when the first ultrasonic waves is received.