Results 51 to 60 of about 2,481,576 (395)
MODELLING OF EXTRINSIC FIBER OPTIC SAGNAC ULTRASOUND INTERFEROMETER USED FOR DISPLACEMENT MEASUREMENTS [PDF]
Journal of Fundamental and Applied Sciences, 2012 Ultrasonic waves are used extensively in nondestructive testing both for characterization of material properties, in this paper, we describe a fiber optic sensor suitable for detection of ultrasonic waves. This sensor is based on an extrinsic fiber optic
S. BENHAMIDA, F. Rehouma
doaj
Omni-Directional Scanning Localization Method of a Mobile Robot Based on Ultrasonic Sensors
Sensors, 2016 Improved ranging accuracy is obtained by the development of a novel ultrasonic sensor ranging algorithm, unlike the conventional ranging algorithm, which considers the divergence angle and the incidence angle of the ultrasonic sensor synchronously.
Wei-Yi Mu +5 more
doaj +1 more source
A Review of Transparent Sensors for Photoacoustic Imaging Applications
Photonics, 2021 Photoacoustic imaging is a new type of noninvasive, nonradiation imaging modality that combines the deep penetration of ultrasonic imaging and high specificity of optical imaging.
Danyang Ren +3 more
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Wireless recording of the calls of Rousettus aegyptiacus and their reproduction using electrostatic transducers [PDF]
, 2008 Bats are capable of imaging their surroundings in great detail using echolocation. To apply similar methods to human engineering systems requires the capability to measure and recreate the signals used, and to understand the processing applied to ...
D A Waters +13 more
core +1 more source
The lives of others: an interactive installation [PDF]
, 2020 “The lives of others” is an interactive audiovisual installation that is based on a voyeuristic approach of the binomial inside / outside and private / public, between the finished product presentable to the public and the mechanism that generates it ...
A.Robotics +5 more
core +1 more source
Optical fiber sensor for ultrasonic detection at high temperature
Nihon Kikai Gakkai ronbunshu, 2017 Because of the stable material property of optical fiber up to 1000℃, fiber-optic Bragg grating (FBG) sensor is considered as one of possible ultrasonic sensors used at ultrahigh temperature.
Fengming YU, Yoji OKABE
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A method of precise measurement of air speed in mine ventilatio
Gong-kuang zidonghua, 2014 In view of problem that it is hard to precisely measure time of pulse arriving at receiving sensor due to presence of start-up process when ultrasonic sensor receives ultrasonic pulse signal, the paper proposed a method of precise measurement of air ...
SA Xianchun, CAO Juan, WANG Ning
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Sensors, 2023 Reconstruction of the acoustic relaxation absorption curve is a powerful approach to ultrasonic gas sensing, but it requires knowledge of a series of ultrasonic absorptions at various frequencies around the effective relaxation frequency.
Kun Shen +4 more
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Oil film measurement in polytetrafluoroethylene-faced thrust pad bearings for hydrogenerator applications [PDF]
, 2006 There is a growing trend in the replacement of the babbit facing in thrust pad bearings with a composite polytetrafluoroethylene (PTFE) surface layer. The PTFE-faced bearings have been shown to allow a greater specific pressure, reduce thermal crowning ...
Drinkwater, B.W. +3 more
core +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Bone tumours present significant challenges for affected patients, as multimodal therapy often leads to prolonged physical limitations. This is particularly critical during childhood and adolescence, as it can negatively impact physiological development and psychosocial resilience.
Jennifer Queisser +5 more
wiley +1 more source