Matches in SemOpenAlex for { <https://semopenalex.org/work/W2032630897> ?p ?o ?g. }
Showing items 1 to 91 of
91
with 100 items per page.
- W2032630897 endingPage "442" @default.
- W2032630897 startingPage "431" @default.
- W2032630897 abstract "When coherent light scatters from a surface, which is rough on the scale of the wavelength of the light, a speckle pattern is produced. The Laser Vibrometer measures target vibration velocity in the direction of the incident laser beam and typically samples a region of a speckle pattern on its photodetector. Target motions can cause the speckle pattern to change on the photodetector surface, particularly when target motions are non-normal to the direction of the laser beam. This speckle motion modulates the Doppler signal and adds noise to the demodulated output signal. Periodic target motions can cause the speckle noise to become pseudo-random and produce harmonic peaks, with the same fundamental frequency as the genuine target vibrations, which can be indistinguishable from the genuine target vibrations. Typical speckle noise levels are generally considered to be low-level, but they have not so far been adequately quantified. This paper reports preliminary results quantifying speckle noise levels using controlled experimental configurations incorporating periodic in-plane and tilt target motions. Working with commercial Laser Vibrometers, various target surface finishes and treatments are considered and speckle noise maps are produced for each configuration. For a tilting surface, speckle noise has been quantified at approximately 1 μm s−1/deg s−1 while, for surfaces with in-plane motion, the sensitivity to speckle noise has been estimated pessimistically at 0.1% of the in-plane velocity. Ultimately, these speckle noise maps will form a valuable practical resource for the Laser Vibrometer user." @default.
- W2032630897 created "2016-06-24" @default.
- W2032630897 creator A5077802503 @default.
- W2032630897 creator A5088081957 @default.
- W2032630897 date "2009-03-01" @default.
- W2032630897 modified "2023-09-28" @default.
- W2032630897 title "Introducing speckle noise maps for Laser Vibrometry" @default.
- W2032630897 cites W1585413888 @default.
- W2032630897 cites W2021542767 @default.
- W2032630897 cites W2040484118 @default.
- W2032630897 cites W2041917386 @default.
- W2032630897 cites W2075800505 @default.
- W2032630897 doi "https://doi.org/10.1016/j.optlaseng.2008.06.010" @default.
- W2032630897 hasPublicationYear "2009" @default.
- W2032630897 type Work @default.
- W2032630897 sameAs 2032630897 @default.
- W2032630897 citedByCount "49" @default.
- W2032630897 countsByYear W20326308972012 @default.
- W2032630897 countsByYear W20326308972013 @default.
- W2032630897 countsByYear W20326308972014 @default.
- W2032630897 countsByYear W20326308972015 @default.
- W2032630897 countsByYear W20326308972016 @default.
- W2032630897 countsByYear W20326308972017 @default.
- W2032630897 countsByYear W20326308972018 @default.
- W2032630897 countsByYear W20326308972019 @default.
- W2032630897 countsByYear W20326308972020 @default.
- W2032630897 countsByYear W20326308972021 @default.
- W2032630897 countsByYear W20326308972022 @default.
- W2032630897 crossrefType "journal-article" @default.
- W2032630897 hasAuthorship W2032630897A5077802503 @default.
- W2032630897 hasAuthorship W2032630897A5088081957 @default.
- W2032630897 hasBestOaLocation W20326308972 @default.
- W2032630897 hasConcept C102290492 @default.
- W2032630897 hasConcept C115961682 @default.
- W2032630897 hasConcept C120665830 @default.
- W2032630897 hasConcept C121332964 @default.
- W2032630897 hasConcept C126322002 @default.
- W2032630897 hasConcept C154945302 @default.
- W2032630897 hasConcept C158846371 @default.
- W2032630897 hasConcept C180940675 @default.
- W2032630897 hasConcept C198394728 @default.
- W2032630897 hasConcept C24890656 @default.
- W2032630897 hasConcept C2984025587 @default.
- W2032630897 hasConcept C41008148 @default.
- W2032630897 hasConcept C520434653 @default.
- W2032630897 hasConcept C52305850 @default.
- W2032630897 hasConcept C71924100 @default.
- W2032630897 hasConcept C96199931 @default.
- W2032630897 hasConcept C97034920 @default.
- W2032630897 hasConcept C99498987 @default.
- W2032630897 hasConceptScore W2032630897C102290492 @default.
- W2032630897 hasConceptScore W2032630897C115961682 @default.
- W2032630897 hasConceptScore W2032630897C120665830 @default.
- W2032630897 hasConceptScore W2032630897C121332964 @default.
- W2032630897 hasConceptScore W2032630897C126322002 @default.
- W2032630897 hasConceptScore W2032630897C154945302 @default.
- W2032630897 hasConceptScore W2032630897C158846371 @default.
- W2032630897 hasConceptScore W2032630897C180940675 @default.
- W2032630897 hasConceptScore W2032630897C198394728 @default.
- W2032630897 hasConceptScore W2032630897C24890656 @default.
- W2032630897 hasConceptScore W2032630897C2984025587 @default.
- W2032630897 hasConceptScore W2032630897C41008148 @default.
- W2032630897 hasConceptScore W2032630897C520434653 @default.
- W2032630897 hasConceptScore W2032630897C52305850 @default.
- W2032630897 hasConceptScore W2032630897C71924100 @default.
- W2032630897 hasConceptScore W2032630897C96199931 @default.
- W2032630897 hasConceptScore W2032630897C97034920 @default.
- W2032630897 hasConceptScore W2032630897C99498987 @default.
- W2032630897 hasIssue "3-4" @default.
- W2032630897 hasLocation W20326308971 @default.
- W2032630897 hasLocation W20326308972 @default.
- W2032630897 hasLocation W20326308973 @default.
- W2032630897 hasOpenAccess W2032630897 @default.
- W2032630897 hasPrimaryLocation W20326308971 @default.
- W2032630897 hasRelatedWork W1984298144 @default.
- W2032630897 hasRelatedWork W1996789154 @default.
- W2032630897 hasRelatedWork W2018010193 @default.
- W2032630897 hasRelatedWork W2063464267 @default.
- W2032630897 hasRelatedWork W2362108865 @default.
- W2032630897 hasRelatedWork W2368432289 @default.
- W2032630897 hasRelatedWork W2373406960 @default.
- W2032630897 hasRelatedWork W3204309621 @default.
- W2032630897 hasRelatedWork W3211047941 @default.
- W2032630897 hasRelatedWork W577531431 @default.
- W2032630897 hasVolume "47" @default.
- W2032630897 isParatext "false" @default.
- W2032630897 isRetracted "false" @default.
- W2032630897 magId "2032630897" @default.
- W2032630897 workType "article" @default.