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Measurement of Sub-Surface Microstructures Based on a Developed Ultrasonic Atomic Force Microscopy
2022
Applied Sciences
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The combination of acoustic technique for sub-surface detection and atomic force microscopy (AFM) for measurement with high resolution is a potential method for studying the subsurface structure of workpiece ...
For this purpose, contact-resonance AFM (CR-AFM) is a typical technique. ...
After that, the difference between the collected real-time probe contact resonance frequency and the reference frequency is used as a feedback signal, and the piezoelectric ceramic is controlled to drive ...
doi:10.3390/app12115460
fatcat:3ggiarc4inh23bpqtdln5a7vaa
Residue detection for real-time removal of paint from metallic surfaces
2001
Advanced Nondestructive Evaluation for Structural and Biological Health Monitoring
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Issues that affect the sensory data in dynamic conditions are addressed while providing real-time real feedback for the control of the paint stripper speed of travel. ...
To assure efficient paint stripping feedback data is required to control the travel speed by monitoring the paint thickness before and during the stripping process. ...
Bill Ross, NREC, CMU for his helpful technical comments and suggestions. ...
doi:10.1117/12.434165
fatcat:ot4towjkencc3ias5hdrwxx534
Study of DNA properties under controlled conditions using AFM based nano-robotics
2007
2007 7th IEEE Conference on Nanotechnology (IEEE NANO)
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The recent development of Atomic Force Microscopy (AFM) based nano-robotics seems to be a promising solution. ...
The electrical properties of DNA are studied under controlled conditions. ...
behavior models, real-time force information, and local scanning information. ...
doi:10.1109/nano.2007.4601356
fatcat:74ctsu7ilnghzik4jirjbsiapu
Interface Design and Control Strategies for a Robot Assisted Ultrasonic Examination System
[chapter]
2014
Springer Tracts in Advanced Robotics
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A force controller maintains a constant contact force between the transducer and the patient's skin while the robot drives the transducer to the desired anatomical locations. ...
The ultrasound imaging system is connected to a 3D visualization application which registers in real time the streaming 2D images generated by the transducer and displays the resulting data as 3D volumetric ...
Sébastien Grange from Force Dimension, and Dr. Brook Jeffrey from the Stanford University Medical Center for their valuable comments and suggestions during the development of this project. ...
doi:10.1007/978-3-642-28572-1_7
fatcat:2zp6rwh3obctxiasmckuujvea4
Interface sensing and cutting of ultra-thin film based on UV-assisted AFM
2015
2015 IEEE 15th International Conference on Nanotechnology (IEEE-NANO)
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Furthermore, the real-time material/interface sensing is still absent when cutting on ultra-thin film. ...
This new approach for sensing and cutting ultra-thin film is validated by our experimental results conducting on ultra-thin films with different thickness at nanoscale. ...
Hence, it is very necessary for a real-time interface sensing and cutting method for ultra-thin film based on UV-assisted AFM. ...
doi:10.1109/nano.2015.7388780
fatcat:sjblubsfsndm3irjg5gcngbnj4
Integrating force, tactile and proximity sensing for a flexible robotic system through a modular design
[chapter]
1991
Engineering Systems with Intelligence
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distance sensors and algorithms for sensor-based control. ...
Here, we are essentially concerned with sensory integration for fine motion control, the following subjects being addressed: the architecture of the control system integrating force/torque, tactile and ...
For the real-time path control communications we have developed a PC-AT bus board based on a microcontroller of the Intel MCSS1 family. ...
doi:10.1007/978-94-011-2560-4_29
fatcat:3yzth2csmbdbvphl24yzgqtauq
Effects of Vibration Amplitude on Microstructure Evolution and Mechanical Strength of Ultrasonic Spot Welded Cu/Al Joints
2017
Metals
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The effects of vibration amplitude on the interface reaction and mechanical strength of the Cu/Al joints were systematically investigated in ultrasonic spot welding (USW) experiments. ...
Metals 2017, 7, 471 2 of 12 the quality of an ultrasonic welded joint is quite sensitive to the variation of welding parameters, such as frequency, vibration amplitude, clamping force and welding energy ...
A moderate clamping force is indispensable to generate intimate contact between the welded samples. ...
doi:10.3390/met7110471
fatcat:hqispc76gnc5ni2dljc4c4udty
A Review of Surface Haptics: Enabling Tactile Effects on Touch Surfaces
2020
IEEE Transactions on Haptics
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2020 pre-print arXiv:2004.13864v1 fatcat:lohjhip7vrcthdadrlk6nizt54
This review primarily covers the tactile interactions of human fingers or hands with surface-haptics displays by focusing on the three most popular actuation methods: vibrotactile, electrostatic, and ultrasonic ...
We review the current technology underlying surface haptics that converts passive touch surfaces to active ones (machine haptics), our perception of tactile stimuli displayed through touch surfaces (human ...
It is highly difficult to measure or estimate the real area of contact, A real , which varies nonlinearly with the normal force. ...
doi:10.1109/toh.2020.2990712
pmid:32340960
fatcat:vyhlk3yc2bfqhpmstesg4m2zxu
Intelligent magnetic manipulation for gastrointestinal ultrasound
2019
Science Robotics
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We investigated and showed the feasibility of closed-loop magnetic control using digitized microultrasound (μUS) feedback; this is crucial for obtaining robust imaging in an unknown and unconstrained environment ...
We demonstrated the functionality of an autonomous servoing algorithm that uses μUS feedback, both on benchtop trials and in vivo in a porcine model. ...
Richard Mosses for effective ...
doi:10.1126/scirobotics.aav7725
pmid:31380501
pmcid:PMC6677276
fatcat:knxdpdmk7vbcvaxgbz4vjjopfm
Guest Editorial Introduction to the Focused Section on Optomechatronics
2010
IEEE/ASME transactions on mechatronics
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During last decade, much effort has been put on the development of real-time visual feedback and haptic control during nanomanipulation using AFM. ...
[2] realized an augmented reality system for AFM-based nanomanipulation by incorporating real-time visual feedback information to facilitate the manipulator. ...
doi:10.1109/tmech.2010.2052283
fatcat:s7ybg67rm5afbci67jcrotj7iy
Sensor-Enabled Multi-Robot System for Automated Welding and In-Process Ultrasonic NDE
2021
Sensors
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Full external positional control is achieved in real time allowing for on-the-fly motion correction, based on multi-sensory input. ...
The higher production rates of automated welding have increased the need for fast, robotically deployed Non-Destructive Evaluation (NDE), replacing current time-consuming manually deployed inspection. ...
The protocol is based on an interpolation cycle, which executes in real-time intervals of 4 ms for KRC (KUKA Robot Controller) 4 controller-based robots, and 12 ms for legacy KRC 2-based robots. ...
doi:10.3390/s21155077
fatcat:3ofryrhkrbbtfjpgo5hrfymdvy
Acoustics and atomic force microscopy for the mechanical characterization of thin films
2010
Analytical and Bioanalytical Chemistry
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High-frequency ultrasonic techniquesespecially acoustic microscopy-and atomic force microscopy (AFM) have been demonstrated to represent versatile tools for developing such methods. ...
techniques led researchers to develop some unique tools which allow one to perform not only spot measurements of the sample elastic modulus, but also to obtain both the qualitative imaging of mechanical ...
For ultrasonic AFM experiments, the sample is coupled with an ultrasonic transducer (UT) which is controlled either by a sinusoidal signal supplied by a signal generator (SG) for SLAM/AFAM or by a ramped ...
doi:10.1007/s00216-009-3402-8
pmid:20069282
fatcat:32lkysblundv7dvqavakucapui
Mechanisms of Friction Reduction of Nanoscale Sliding Contacts Achieved Through Ultrasonic Excitation
2018
Nanotechnology
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in the microscopic contact and the influence of the ultrasonic parameters on friction reduction are still elusive. ...
This study opens up a new door for the control of friction and wear, which is critical for the increased lifetime of AFM probes, N-/MEMS devices and would potentially bridge the gap between nanotribology ...
SK acknowledges support from the Canada Research Chairs (CRC) program and the Canada Foundation for Innovation (CFI). ...
doi:10.1088/1361-6528/aaf3cd
pmid:30523838
fatcat:57jehsbcmrhvdeax3iggedsyz4
Fabrication of soft gold microelectrode arrays as probes for scanning electrochemical microscopy
2012
Journal of Electroanalytical Chemistry
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The softness of the array leads to a bending and allows scanning in contact mode like brushing the sample surface. ...
Nanoparticulate gold ink was printed on polyimide Kapton HN Ò thin films. After sintering, a 200 nm thick Parylene C coating was deposited to cover and seal the gold tracks. ...
T. thanks for a grant of German Academic Exchange Service. ...
doi:10.1016/j.jelechem.2011.12.005
fatcat:fqcxtqy5ybdilmsr6hwz63zzvu
Application of the dual-frequency ultrasonometer for osteoporosis detection
2009
Ultrasonics
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Assessment of bone conditions is based on evaluating relative changes of the axial profiles of ultrasonic characteristics in long bones and utilizes bulk and guided acoustic waves. ...
Based on the ROC analysis, BUSS demonstrated 76% sensitivity and 70% specificity to DXAidentified osteoporosis. ...
N Sarvazyan for useful discussions. ...
doi:10.1016/j.ultras.2008.10.003
pmid:19036394
pmcid:PMC2788614
fatcat:t7ccph6b6rddvdculmbdljpn4e
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