Results 31 to 40 of about 365,426 (318)
Ultrasonic metal sheet thickness measurement without prior wave speed calibration [PDF]
, 2013 Conventional ultrasonic mensuration of sample thickness from one side only requires the bulk wave reverberation time and a calibration speed. This speed changes with temperature, stress, and microstructure, limiting thickness measurement accuracy ...
Dixon, S. +4 more
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AIP Advances, 2023 In this paper, a theoretical model of underwater acoustic wave propagation, based on the transfer matrix method, is employed to calculate acoustic wave transmission through a 1D solid–fluid superlattice (SFSL) with multiple solid constituents.
Sai Zhang, Huizi He, Baiqiang Xu, Wei Lu
doaj +1 more source
A noncontact ultrasonic platform for structural inspection
, 2011 Miniature robotic vehicles are receiving increasing attention for use in nondestructive testing (NDE) due to their attractiveness in terms of cost, safety, and their accessibility to areas where manual inspection is not practical. Conventional ultrasonic
Summan, Rahul +9 more
core +1 more source
Flextensional ultrasonic piezoelectric micro-motor [PDF]
, 2006 This paper presents the experimental design, construction, and operational characteristics of a new type of standing wave piezoelectric ultrasonic micro-motor.
Leinvuo, Joni T. +3 more
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Deep Learning-Based Geometric Optimization of CMUT Phononic Crystals for SAW Control
Applied SciencesCapacitive micromechanical ultrasonic transducers (CMUTs), as microelectromechanical systems (MEMS) devices, have broad application prospects in ultrasonic imaging and sensing.
Gang Chen +4 more
doaj +1 more source
Diabetology & Metabolic Syndrome, 2023 Background The studies of the effect of diabetes on the stiffness of Achilles tendon (AT) tissue remain inconclusive, we believe it is necessary to find a reliable method which can be used to detect the stiffness changes of the AT in the diabetic state ...
Xinxin Huang +8 more
doaj +1 more source
Diversity in ultrasonics [PDF]
Journal of Medical Ultrasonics, 2014 I recently had the opportunity to read about research on ecological surveys involving wild animals such as penguins, seals and whales. A technique called ‘‘bio-logging’’ involves the attaching of small positioning devices to the bodies of animals to better understand what they do and where.
openaire +2 more sources
Non-Contact Laser Ultrasound Detection of Internal Gas Defects in Lithium-Ion Batteries
SensorsNon-contact laser ultrasonic detection technology provides an innovative solution for evaluating the internal conditions of lithium-ion batteries (LIBs), offering significant advantages in gas defect assessment and structural defect identification.
Dongxia Tang +4 more
doaj +1 more source
Design and Test of Peanut Root-Disk Full-Feeding Longitudinal Axial Flow Pod-Picking Device
Agronomy, 2023 To improve the pod-picking efficiency of the combine harvester for both peanut seedlings and peanuts, a longitudinal axial flow pod-picking device is designed in this study. The fixation and adjustment modes of the pod-picking rod were determined.
Xiaodong Liu +3 more
doaj +1 more source
Ultrasonic distance sensor improvement using a two-level neural network [PDF]
, 1995 This paper discusses the performance improvement that a neural network can provide to a contactless distance sensor based on the measurement of the time of flight (TOF) of an ultrasonic (US) pulse.
Ferraris, Franco +13 more
core +1 more source