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High precision dynamic measurement method for axial clearance based on time division multiplexing with dispersive interferometry.

open access: yesOptics Express, 2023
Rotor-stator axial clearance is a crucial design parameter affecting rotating machines' efficiency and safety. To accurately measure the dynamic axial clearance in high-speed machinery, a precise method based on time division multiplexing with frequency ...
F. Duan   +6 more
semanticscholar   +1 more source

Dispersion Compensation for Atom Interferometry [PDF]

open access: yesPhysical Review Letters, 2004
A new technique for maintaining high contrast in an atom interferometer is used to measure large de Broglie wave phase shifts. Dependence of an interaction induced phase on the atoms' velocity is compensated by applying an engineered \emph{counter phase}.
Roberts, Tony D.   +3 more
openaire   +3 more sources

Improving Surface Wave Retrieval From Traffic Noise by Deconvolution of the Decomposed Wavefield

open access: yesEarth and Space Science, 2023
Traffic noise is an important type of passive seismic data because it usually includes strong dispersive surface wave components and can be easily accessed.
Weiping Cao   +5 more
doaj   +1 more source

Spatial-dispersion cancellation in quantum interferometry [PDF]

open access: yesPhysical Review A, 2009
To Appear in Phys. Rev. A.
Simon, D. S., Sergienko, A. V.
openaire   +2 more sources

Optimal Dispersion Condition to Distinguish OPD Directions of Spectrally-Resolved Interferometry [PDF]

open access: yes한국정밀공학회지, 2017
Spectrally resolved interferometry (SRI) is an attractive technique to measure absolute distances without any moving components. In the spectral interferogram obtained by a spectrometer, the optical path difference (OPD) can simply be extracted from the ...
Young Ho Yun, Dae Hee Kim, Ki-Nam Joo
doaj   +1 more source

Investigation of Time-Lapse Changes with DAS Borehole Data at the Brady Geothermal Field Using Deconvolution Interferometry

open access: yesRemote Sensing, 2022
Distributed acoustic sensing (DAS) has great potential for monitoring natural-resource reservoirs and borehole conditions. However, the large volume of data and complicated wavefield add challenges to processing and interpretation.
Hilary Chang, Nori Nakata
doaj   +1 more source

Platicon dynamics in photonic molecules

open access: yesCommunications Physics, 2023
Coherent dissipative structures known as platicons can be reliably generated in photonic molecules, resulting in deterministic and reproducible microcombs derived from a continuous-wave pump. However, the supermode spectrum of standard photonic molecules
Israel Rebolledo-Salgado   +8 more
doaj   +1 more source

Dispersed reference interferometry

open access: yesCIRP Annals, 2013
Abstract Dispersed reference interferometry (DRI) is a potentially useful technique for applications such as absolute displacement, surface topography and film thickness measurement. A bulk optic implementation of a short coherence dispersed reference interferometer is described with the chromatic dispersion applied using two matched transmission ...
Haydn Martin, Xiangqian Jiang
openaire   +2 more sources

In-vivo bone response to titanium screw implants anodized in sodium sulfate [PDF]

open access: yesActa Cirúrgica Brasileira, 2014
PURPOSE: To evaluate the early bone response to a nanotextured dental implant treated with sodium sulfate (Na2SO4), using a rabbit model. METHODS: Twelve animals were randomly divided into group 1 (Control) - machined implants and group 2 (Test ...
Flávio Alexandre Lima Pinheiro   +6 more
doaj   +1 more source

Study on the Friction Characteristics and Fatigue Life of Manganese Phosphate Coating Bearings

open access: yesLubricants, 2023
In this study, the tapered roller bearing was adopted to explore the effect of the manganese phosphate coating on the friction, wear, and lifespan of bearings. Line friction samples with and without a manganese phosphate coating were prepared.
Lijie Hao   +6 more
doaj   +1 more source

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