NSTL国家科技图书文献中心

1. Crack Depth Evaluation and Imaging Using Lamb Wavefield Measurements by a Movable PZT Sensor NSTL国家科技图书文献中心

Pasadas, Dario Jeron... | Barzegar, Mohsen ... - 《IEEE sensors journal》 - 2024,24(22) - 37514～37523 - 共10页

摘要： collecting wavefield* measurements for damage detection* | ) using ultrasonic* Lamb waves with a movable contact* | used to measure the wavefield* in the plate. From the* | wavefield data collected by the measurement system, the | In this article, nondestructive testing (NDT

关键词： Lead zirconate titanate | Imaging | Receivers | Dispersion | Acoustics | Reflection | Ultrasonic variables measurement | Testing | Velocity measurement | Sensor phenomena and characterization...

2. Ultrasonic displacement measurements from local absorption of ultrasound in thermochromic liquid crystal sensors NSTL国家科技图书文献中心

Turvey M. | Trushkevych O.... - 《Ultrasonics》 - 2024,141 - 共5页

摘要： dependent on ultrasonic* displacement. Measurements of the* | used for measuring the wavefield* produced by an* | in non-destructive testing. Typical wavefield | ultrasonic waves. The result is a colour scale that varies | resonant modes of a flexural ultrasonic* transducer were*

关键词： Liquid crystal | Ultrasound sensor | Wavefield imaging

3. Thickness Measurement of Metal Components Using Guided Waves and Fully Non-contact PL-SLDV System NSTL国家科技图书文献中心

Andrew Campbell | Wenfeng Xiao ... - 《Health Monitoring of Structural and Biological Systems XVIII: At SPIE Smart Structures + Nondestructive Evaluation.25-28 March 2024.Long Beach, California, United States》 - Health Monitoring of Structural and Biological Systems (conference) - 2024, - 129511A.1～129511A.7 - 共7页

摘要： conjunction with multidimensional wavefield measurements | convert time-space wavefield* measurements to frequency* | noncontact/remote ultrasonic* Lamb wave NDE system and* | multidimensional wavefield* signals for evaluation. Enhancements* | Effective NDE inspection systems and methods

关键词： Lamb waves | Scanning Laser Doppler Vibrometer | Pulsed Laser | PL-SLDV | Material Evaluation | Thickness Measurement

4. Application of Iterative Elastic SH Reverse Time Migration to Synthetic Ultrasonic Echo Data NSTL国家科技图书文献中心

Grohmann, Maria | Niederleithinger, Er...... - 《Journal of Nondestructive Evaluation》 - 2024,43(1) - ARTN 1～ - 共16页 - 被引量：2

摘要：The ultrasonic* echo technique is widely used* | objects for thickness measurements, geometry | improve ultrasonic* imaging of complex concrete* | , considers all wavefield* types and thus, can handle complex* | ultrasonic echo SH-wave data generated with a concrete

关键词： Concrete Structures | Ultrasonic Echo Technique | Elastic Reverse Time Migration | Synthetic Aperture Focusing Technique | Horizontally Polarized Shear Waves | CONCRETE | FIELD | REBARS | CRACKS | WAVES...

5. Ultrasonic pitch-catch measurement wavefield analysis and casing reflection suppression NSTL国家科技图书文献中心

Shaopeng Shi | Hua Wang ... - 《Geoenergy Science and Engineering》 - 2024,234 - 212591,2-19～ - 共19页

摘要：Ultrasonic pitch-catch measurements are | receivers in ultrasonic* pitch-catch measurement adds to* | tackle these challenges,we first analyze the wavefield | increasingly recognized in cement bond evaluations for their | unique ability to discern between light cement and mud

关键词： Ultrasonic pitch-catch measurement | Wavefield analysis | Flexural waves | Casing reflection | Phase-shift interpolation | Median filter

6. Deep learning approach for delamination identification using animation of Lamb waves EI 工程索引 NSTL国家科技图书文献中心

Ullah, Saeed | Ijjeh, Abdalraheem A...... - 《Engineering Applications of Artificial Intelligence: The International Journal of Intelligent Real-Time Automation》 - 2023,117(Pt.A) - 105520～ - 共17页 - 被引量：12

摘要：, among which ultrasonic* guided waves, particularly Lamb* | , apart from piezoelectric pointwise measurements, laser | Doppler vibrometry has been used for full wavefield | measurements of propagating Lamb waves. Damage imaging can be | large dataset of full wavefield* images resulting from*

关键词： Lamb waves | Structural health monitoring | Semantic segmentation | Delamination identification | Deep learning | Autoencoder | ConvLSTM | DAMAGE DETECTION | COMPOSITE STRUCTURES | NEURAL-NETWORKS...

7. (73)Application of Elastic P-SV Reverse Time Migration to Synthetic Ultrasonic Echo Data from Concrete Members NSTL国家科技图书文献中心

Grohmann Maria | Niederleithinger Ern...... - 《Journal of Nondestructive Evaluation》 - 2023,42(3) - 1～18 - 共18页 - 被引量：2

摘要：The ultrasonic* echo technique is frequently* | structures for thickness measurements, geometry | . To improve ultrasonic* imaging of complex structures* | ) algorithms, RTM is a wavefield* continuation method in time* | tested the elastic RTM routine on synthetic ultrasonic

关键词： Concrete structures | Ultrasonic echo technique | Elastic reverse time migration | Synthetic aperture focusing technique

8. An approach for improving SHM systems with GUW detection and embedded sensors by a planar gradient acoustic impedance matching NSTL国家科技图书文献中心

Max Rottmann | Wolfgang E. Weber - 《PAMM》 - 2023,23(3) - n/a～n/a - 共8页

摘要： induce a guided ultrasonic* wave or wavefield monitored* | example, fibre‐metal‐laminates. The sensor measurements | results in a distortion of the wavefield, for example | and reflection of the wavefield, a functionally | Abstract For technical structures, such as

关键词： acoustic impedance matching | composite testing | fiber metal laminate (FML) | functionally graded material (FGM) | guided ultrasonic waves (GUW) | material characterization | structural health monitoring (SHM) | sensor integration

9. Application of a U-Net Convolutional Neural Network to Ultrasonic Wavefield Measurements for Defect Characterization NSTL国家科技图书文献中心

Joshua D. Eckels | Isabel F. Fernandez ... - 《Rotating Machinery, Optical Methods & Scanning LDV Methods: Proceedings of the 39th IMAC, A Conference and Exposition on Structural Dynamics 2021, v.6》 - IMAC Conference and Exposition on Structural Dynamics - 2022, - 167～181 - 共15页

摘要： segmentation on simulated ultrasonic* wavefield images of a* | technique that utilizes steady-state ultrasonic* excitation* | and laser Doppler vibrometer (LDV) measurements* to* | traditional time-of-flight ultrasonic* NDE techniques* | augmented wavefield* dataset for the purpose of defect*

关键词： Convolutional neural network | Nondestructive evaluation | Structural health monitoring | Ultrasonic wavefield measurements | Acoustic wavenumber spectroscopy

NSTL主题词： Defect characterization | Neural network | Ultrasonics

10. Chapter 17 Multilayer Input Deep Learning Applied to Ultrasonic Wavefield Measurements NSTL国家科技图书文献中心

Cole N. Maxwell | Justin L. Dalton ... - 《Data Science in Engineering: Proceedings of the 40th IMAC, A Conference and Exposition on Structural Dynamics 2022, v.9》 - IMAC Conference and Exposition on Structural Dynamics - 2022, - 143～156 - 共14页

摘要： spectroscopy (ASSESS) is an ultrasonic* NDE technique that* | characterize defects. Processing the resultant wavefield | wavefield maps, producing pixel-wise thickness maps which | Nondestructive evaluation (NDE) methods | provide a way to monitor structures which can decrease

摘要： collecting wavefield* measurements for damage detection* | ) using ultrasonic* Lamb waves with a movable contact* | used to measure the wavefield* in the plate. From the* | wavefield data collected by the measurement system, the | In this article, nondestructive testing (NDT

关键词： Lead zirconate titanate | Imaging | Receivers | Dispersion | Acoustics | Reflection | Ultrasonic variables measurement | Testing | Velocity measurement | Sensor phenomena and characterization...

摘要： dependent on ultrasonic* displacement. Measurements of the* | used for measuring the wavefield* produced by an* | in non-destructive testing. Typical wavefield | ultrasonic waves. The result is a colour scale that varies | resonant modes of a flexural ultrasonic* transducer were*

关键词： Liquid crystal | Ultrasound sensor | Wavefield imaging

摘要： conjunction with multidimensional wavefield measurements | convert time-space wavefield* measurements to frequency* | noncontact/remote ultrasonic* Lamb wave NDE system and* | multidimensional wavefield* signals for evaluation. Enhancements* | Effective NDE inspection systems and methods

关键词： Lamb waves | Scanning Laser Doppler Vibrometer | Pulsed Laser | PL-SLDV | Material Evaluation | Thickness Measurement

摘要：The ultrasonic* echo technique is widely used* | objects for thickness measurements, geometry | improve ultrasonic* imaging of complex concrete* | , considers all wavefield* types and thus, can handle complex* | ultrasonic echo SH-wave data generated with a concrete

关键词： Concrete Structures | Ultrasonic Echo Technique | Elastic Reverse Time Migration | Synthetic Aperture Focusing Technique | Horizontally Polarized Shear Waves | CONCRETE | FIELD | REBARS | CRACKS | WAVES...

摘要：Ultrasonic pitch-catch measurements are | receivers in ultrasonic* pitch-catch measurement adds to* | tackle these challenges,we first analyze the wavefield | increasingly recognized in cement bond evaluations for their | unique ability to discern between light cement and mud

关键词： Ultrasonic pitch-catch measurement | Wavefield analysis | Flexural waves | Casing reflection | Phase-shift interpolation | Median filter

关键词： Lamb waves | Structural health monitoring | Semantic segmentation | Delamination identification | Deep learning | Autoencoder | ConvLSTM | DAMAGE DETECTION | COMPOSITE STRUCTURES | NEURAL-NETWORKS...

摘要：The ultrasonic* echo technique is frequently* | structures for thickness measurements, geometry | . To improve ultrasonic* imaging of complex structures* | ) algorithms, RTM is a wavefield* continuation method in time* | tested the elastic RTM routine on synthetic ultrasonic

关键词： Concrete structures | Ultrasonic echo technique | Elastic reverse time migration | Synthetic aperture focusing technique

摘要： induce a guided ultrasonic* wave or wavefield monitored* | example, fibre‐metal‐laminates. The sensor measurements | results in a distortion of the wavefield, for example | and reflection of the wavefield, a functionally | Abstract For technical structures, such as

关键词： acoustic impedance matching | composite testing | fiber metal laminate (FML) | functionally graded material (FGM) | guided ultrasonic waves (GUW) | material characterization | structural health monitoring (SHM) | sensor integration

关键词： Convolutional neural network | Nondestructive evaluation | Structural health monitoring | Ultrasonic wavefield measurements | Acoustic wavenumber spectroscopy

NSTL主题词： Defect characterization | Neural network | Ultrasonics

摘要： spectroscopy (ASSESS) is an ultrasonic* NDE technique that* | characterize defects. Processing the resultant wavefield | wavefield maps, producing pixel-wise thickness maps which | Nondestructive evaluation (NDE) methods | provide a way to monitor structures which can decrease

关键词： Ultrasonic wavefield | Convolutional neural network | Acoustic steady-state excitation spatial spectroscopy

NSTL主题词： Machine Learning | Ultrasonics | multilayers | Ultrasonic measurement

4008-161-200 800-990-8900

国家科技图书文献中心

摘要： collecting wavefield measurements for damage detection | ) using ultrasonic Lamb waves with a movable contact | used to measure the wavefield in the plate. From the | wavefield data collected by the measurement system, the | In this article, nondestructive testing (NDT

关键词： Lead zirconate titanate | Imaging | Receivers | Dispersion | Acoustics | Reflection | Ultrasonic variables measurement | Testing | Velocity measurement | Sensor phenomena and characterization...

摘要： dependent on ultrasonic displacement. Measurements of the | used for measuring the wavefield produced by an | in non-destructive testing. Typical wavefield | ultrasonic waves. The result is a colour scale that varies | resonant modes of a flexural ultrasonic transducer were

关键词： Liquid crystal | Ultrasound sensor | Wavefield imaging

摘要： conjunction with multidimensional wavefield measurements | convert time-space wavefield measurements to frequency | noncontact/remote ultrasonic Lamb wave NDE system and | multidimensional wavefield signals for evaluation. Enhancements | Effective NDE inspection systems and methods

关键词： Lamb waves | Scanning Laser Doppler Vibrometer | Pulsed Laser | PL-SLDV | Material Evaluation | Thickness Measurement

摘要：The ultrasonic echo technique is widely used | objects for thickness measurements, geometry | improve ultrasonic imaging of complex concrete | , considers all wavefield types and thus, can handle complex | ultrasonic echo SH-wave data generated with a concrete

关键词： Concrete Structures | Ultrasonic Echo Technique | Elastic Reverse Time Migration | Synthetic Aperture Focusing Technique | Horizontally Polarized Shear Waves | CONCRETE | FIELD | REBARS | CRACKS | WAVES...

摘要：Ultrasonic pitch-catch measurements are | receivers in ultrasonic pitch-catch measurement adds to | tackle these challenges,we first analyze the wavefield | increasingly recognized in cement bond evaluations for their | unique ability to discern between light cement and mud

关键词： Ultrasonic pitch-catch measurement | Wavefield analysis | Flexural waves | Casing reflection | Phase-shift interpolation | Median filter

摘要：, among which ultrasonic guided waves, particularly Lamb | , apart from piezoelectric pointwise measurements, laser | Doppler vibrometry has been used for full wavefield | measurements of propagating Lamb waves. Damage imaging can be | large dataset of full wavefield images resulting from

关键词： Lamb waves | Structural health monitoring | Semantic segmentation | Delamination identification | Deep learning | Autoencoder | ConvLSTM | DAMAGE DETECTION | COMPOSITE STRUCTURES | NEURAL-NETWORKS...

摘要：The ultrasonic echo technique is frequently | structures for thickness measurements, geometry | . To improve ultrasonic imaging of complex structures | ) algorithms, RTM is a wavefield continuation method in time | tested the elastic RTM routine on synthetic ultrasonic

关键词： Concrete structures | Ultrasonic echo technique | Elastic reverse time migration | Synthetic aperture focusing technique

摘要： induce a guided ultrasonic wave or wavefield monitored | example, fibre‐metal‐laminates. The sensor measurements | results in a distortion of the wavefield, for example | and reflection of the wavefield, a functionally | Abstract For technical structures, such as

关键词： acoustic impedance matching | composite testing | fiber metal laminate (FML) | functionally graded material (FGM) | guided ultrasonic waves (GUW) | material characterization | structural health monitoring (SHM) | sensor integration

摘要： segmentation on simulated ultrasonic wavefield images of a | technique that utilizes steady-state ultrasonic excitation | and laser Doppler vibrometer (LDV) measurements to | traditional time-of-flight ultrasonic NDE techniques | augmented wavefield dataset for the purpose of defect

关键词： Convolutional neural network | Nondestructive evaluation | Structural health monitoring | Ultrasonic wavefield measurements | Acoustic wavenumber spectroscopy

NSTL主题词： Defect characterization | Neural network | Ultrasonics

摘要： spectroscopy (ASSESS) is an ultrasonic NDE technique that | characterize defects. Processing the resultant wavefield | wavefield maps, producing pixel-wise thickness maps which | Nondestructive evaluation (NDE) methods | provide a way to monitor structures which can decrease

关键词： Ultrasonic wavefield | Convolutional neural network | Acoustic steady-state excitation spatial spectroscopy

NSTL主题词： Machine Learning | Ultrasonics | multilayers | Ultrasonic measurement

4008-161-200 800-990-8900

国家科技图书文献中心

摘要： collecting wavefield* measurements for damage detection* | ) using ultrasonic* Lamb waves with a movable contact* | used to measure the wavefield* in the plate. From the* | wavefield data collected by the measurement system, the | In this article, nondestructive testing (NDT

摘要： dependent on ultrasonic* displacement. Measurements of the* | used for measuring the wavefield* produced by an* | in non-destructive testing. Typical wavefield | ultrasonic waves. The result is a colour scale that varies | resonant modes of a flexural ultrasonic* transducer were*

摘要： conjunction with multidimensional wavefield measurements | convert time-space wavefield* measurements to frequency* | noncontact/remote ultrasonic* Lamb wave NDE system and* | multidimensional wavefield* signals for evaluation. Enhancements* | Effective NDE inspection systems and methods

摘要：The ultrasonic* echo technique is widely used* | objects for thickness measurements, geometry | improve ultrasonic* imaging of complex concrete* | , considers all wavefield* types and thus, can handle complex* | ultrasonic echo SH-wave data generated with a concrete

摘要：Ultrasonic pitch-catch measurements are | receivers in ultrasonic* pitch-catch measurement adds to* | tackle these challenges,we first analyze the wavefield | increasingly recognized in cement bond evaluations for their | unique ability to discern between light cement and mud

摘要：The ultrasonic* echo technique is frequently* | structures for thickness measurements, geometry | . To improve ultrasonic* imaging of complex structures* | ) algorithms, RTM is a wavefield* continuation method in time* | tested the elastic RTM routine on synthetic ultrasonic

摘要： induce a guided ultrasonic* wave or wavefield monitored* | example, fibre‐metal‐laminates. The sensor measurements | results in a distortion of the wavefield, for example | and reflection of the wavefield, a functionally | Abstract For technical structures, such as

摘要： spectroscopy (ASSESS) is an ultrasonic* NDE technique that* | characterize defects. Processing the resultant wavefield | wavefield maps, producing pixel-wise thickness maps which | Nondestructive evaluation (NDE) methods | provide a way to monitor structures which can decrease