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  • 1995-1999  (2)
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  • random  (1)
  • 1
    Digitale Medien
    Digitale Medien
    A technique for modelling the performance of birefringent wave plates (1999)
    Springer
    Optical and quantum electronics 31 (1999), S. 645-653 
    Details
    ISSN: 1572-817X
    Schlagwort(e): Achromatic ; birefringent ; wave plate
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Elektrotechnik, Elektronik, Nachrichtentechnik , Physik
    Notizen: Abstract By considering the phase delay introduced by a birefringent wave plate to each frequency component of a finite bandwidth light source we establish the polarisation state of the transmitted light. Realisable designs of achromatic, zero-order and high-order quarter wave and half wave plates are analysed for use with a variety of light sources with different bandwidths.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1023/A:1006979920296
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Image enhancement and stress separation of thermoelastically measured data under random loading (1997)
    Springer
    Experimental mechanics 37 (1997), S. 225-231 
    Details
    ISSN: 1741-2765
    Schlagwort(e): Thermoelastic ; hybrid ; stress ; random ; thermography ; infrared stress analysis ; thermographic stress analysis ; thermal
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Maschinenbau
    Notizen: Abstract Traditional thermoelastic stress analysis (TSA) presupposes that the structure being analyzed is cyclically loaded at a constant amplitude and frequency. This approach typically has been used to satisfy the adiabatic reversible assumptions. The authors employ an alternative signal analysis technique that enables one to evaluate the magnitude of the individual components of stress in a component subjected to a loading that is random in both frequency and magnitude. However, the nature of the measured information does not change; i.e., data are inherently noisy, and edge information is unreliable. The latter two aspects have caused many thermoelastic stress analyses to be more qualitative than quantitative. The present paper emphasizes developing the TSA technique into a practical, noncontacting quantitative method for stress analyzing actual engineering structures that are randomly loaded. In particular, ability to determine the individual stresses thermoelastically under random loading is demonstrated.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02317411
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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