Broadband Laser Ultrasonic Excitation and Multi-band Sensing for Hierarchical Automatic Damage Visualization

Thai, Mai Thanh; Ahmed, Hasan; Hong, Seung-Chan; Lee, Jung-Ryul; Ihn, Jeong‐Beom

doi:10.1007/s42405-019-00210-4

Cited by 4 publications

(3 citation statements)

References 13 publications

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“…It must be emphasized that this practice has been working well so far without any rigorous investigation to prove its positive correlation to the damage detection rate. Only recently, a hierarchical analog filter (hardware) [149] that rapidly sweeps various frequency ranges from a broadband sensor input and automatically determines the optimal frequency band for the damage evaluation is available. Though this technology was demonstrated not for the G-UPI systems, its potential and compatibility with G-UPI are worth further investigation.…”

Section: Spatial Sampling Ratementioning

confidence: 99%

Guided ultrasonic waves propagation imaging: a review

Chia¹,

Lee²,

Harmin³

et al. 2023

Meas. Sci. Technol.

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This article presents a comprehensive review of the laser-based guided ultrasonic waves propagation imaging (G-UPI) system and respective signal/data processing methods related to the nondestructive testing and evaluation of thin-walled structures. The primary goal of this study is to review and recognize various processing methods, explain the working principles of the most influential methods, and highlight outstanding capabilities. In addition, the suitability of the methods for multiple types of damage and defect in various materials and structures are presented. At the same time, success stories of difficult-to-inspect cases are highlighted. Its secondary goal is to compare and discuss the merits and demerits of the laser-scanning part of the system for ultrasound generation and acquisition to provide a guideline for scanning scheme or hardware selection. Finally, the potential challenges and prospects of the G-UPI are discussed. It is expected that this review would serve as an entrance key for newcomers and a reference point for researchers to explore the opportunities for further improvement in the laser ultrasound-based evaluation of critical engineering structures.

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Section: Spatial Sampling Ratementioning

confidence: 99%

Guided ultrasonic waves propagation imaging: a review

Chia¹,

Lee²,

Harmin³

et al. 2023

Meas. Sci. Technol.

Self Cite

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“…[117,118] The strain gauge can be designed on a small scale to integrate into miniature surgical tools and devices with waterproof capability. [119] However, this type of sensor can be affected by electromagnetic noise and temperature changes that may lead to inaccurate results. [120][121][122][123][124][125] Figure 5 shows a surgical instrument with integrated force feedback for MIS.…”

Section: Force Sensing For Surgical Roboticsmentioning

confidence: 99%

Advanced Intelligent Systems for Surgical Robotics

Thai

Phan

Hoang

et al. 2020

Advanced Intelligent Systems

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Surgical robots have had clinical use since the mid‐1990s. Robot‐assisted surgeries offer many benefits over the conventional approach including lower risk of infection and blood loss, shorter recovery, and an overall safer procedure for patients. The past few decades have shown many emerging surgical robotic platforms that can work in complex and confined channels of the internal human organs and improve the cognitive and physical skills of the surgeons during the operation. Advanced technologies for sensing, actuation, and intelligent control have enabled multiple surgical devices to simultaneously operate within the human body at low cost and with more efficiency. Despite advances, current surgical intervention systems are not able to execute autonomous tasks and make cognitive decisions that are analogous to those of humans. Herein, the historical development of surgery from conventional open to robotic‐assisted approaches with discussion on the capabilities of advanced intelligent systems and devices that are currently implemented in existing surgical robotic systems is reviewed. Also, available autonomous surgical platforms are comprehensively discussed with comments on the essential technologies, existing challenges, and suggestions for the future development of intelligent robotic‐assisted surgical systems toward the achievement of fully autonomous operation.

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“…The signals are decoded synchronously using a data acquisition device (QPIDe Data Acquisition Device, QUANSER, Canada) and MATLAB Simulink (Mathworks, Inc., USA). The signal from the pressure sensor is passed through a digital lowpass filter to eliminate high-frequency noise [34,35]. The instantaneous displacement of the fluid volume is calculated from the displacement of the syringe plunger and its geometry.…”

Section: ) Elongation Testmentioning

confidence: 99%

Soft Microtubule Muscle-Driven 3-Axis Skin-Stretch Haptic Devices

et al. 2020

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In the real world, people heavily rely on haptic or touch to manipulate objects. In emerging systems such as assistive devices, remote surgery, self-driving cars and the guidance of human movements, visual or auditory feedback can be slow, unintuitive and increase the cognitive load. Skin stretch devices (SSDs) that apply tangential force to the skin via a tactor can encode a far richer haptic space, not being limited to force, motion, direction, stiffness, indentation and surface geometry. This paper introduces novel hand-worn hydraulic SSDs that can induce 3-axis tangential forces to the skin via a tactor. The developed SSDs are controlled by new soft microtubule muscles (SMMs) which are driven by hydraulic pressure via custom miniature syringes and DC micromotors. An analytical model is developed to characterize the responses of SMM output in terms of force and elongation. A kinematic model for the motion of the 3-axis SSD is also developed. We evaluate the capability of the tactor head to track circular reference trajectories within different working spaces using an optical tracking system. Experimental results show that the developed SSDs have good durability, high-speed, and can generate omnidirectional shear forces and desired displacement up to 1.8 N and 4.5 mm, respectively. The developed SMMs and SSDs created in this paper will enable new forms of haptic communication to augment human performance during daily activities such as tactile textual language, motion guidance and navigational assistance, remote surgical systems, rehabilitation, education, training, entertainment, or virtual and augmented reality.

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Broadband Laser Ultrasonic Excitation and Multi-band Sensing for Hierarchical Automatic Damage Visualization

Cited by 4 publications

References 13 publications

Guided ultrasonic waves propagation imaging: a review

Guided ultrasonic waves propagation imaging: a review

Advanced Intelligent Systems for Surgical Robotics

Soft Microtubule Muscle-Driven 3-Axis Skin-Stretch Haptic Devices

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