61–80 von 1,257 Ergebnissen
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    Strain measurement using a Brillouin optical time domain reflectometer for development of aircraft structure health monitoring system

    Shimizu, T. / Yari, T. / Nagai, K. et al. | Tema Archiv | 2001
    We conducted theoretical and experimental approaches for applying Brillouin optical time domain reflectometer (BOTDR) to aircraft and ...

    Comparison of radio frequency and optical architectures for deep-space communications via a relay satellite

    Mecherle, G.S. / Horstein, M. | Tema Archiv | 1994
    performance and attractivness for the deep-space communication mission. Two candidate system architectures based on optical technologies were ...

    Semiconductor active waveguide reconfigurable optical interconnect devices and networks

    Balestra, C.L. / Alkinson, T.L. / Johnson, B.C. et al. | Tema Archiv | 1993
    and multi-device level to configure a high transmission bandwidth space division switch. For space and aircraft systems, where weight and ...

    The application and development tendency of optical measurement in automobile industry

    Gang Wan | Tema Archiv | 2002
    the development process. With any changes in design, the impact for a possible collision needs to be examined. An optical measurement system ...

    Present and future of optical intersatellite communication research at NASDA

    Araki, T. / Nakamori, S. / Hisada, Y. et al. | Tema Archiv | 1994
    research. Second, results of the Optical Inter-orbit Communications Engineering test Satellite (OICETS) feasibility study are reported. Last, they ...

    Improvement of LIDAR system by modulation of an optical pulse laser for underwater detection

    Lagaye, J.P. / Vinay, L. / Richou, J. | Tema Archiv | 1997
    clutter by modulating an optical pulse laser. We propose a theoretical study of the behaviour of a modulated pulse in the underwater medium. We ...

    Damage detection of satellite structures by optical fiber with small diameter

    Kabashima, S. / Ozaki, T. / Takeda, N. | Tema Archiv | 2000
    monitoring system usually utilizes optical fiber sensor of which the diameter is 125 micrometer. However, such fiber sensors tend to be perceived as ...

    Hybrid optical/electronic signal processor for laser radars signals in fire control systems

    Findley, G.B. jun. / Anderson, C.S. / Townley, S.K. et al. | Tema Archiv | 1992
    This paper reports on the development of a hybrid optical/electronic signal processor for laser radar signals in fire control applications ...

    Direct optical sensing of underwater sound fields: naval applications

    Podlesak, M. | Tema Archiv | 1999
    Control of underwater noise radiated by naval vessels relies on two factors. First, ship design for quiet operation, and second, provision ...

    Multigigabit optical transmission experiment through a free-space simulator

    Miyazaki, T. / Inagaki, K. / Fujise, M. | Tema Archiv | 1994
    A transmission experiment through a free-space laser transmission simulator for an optical intersatellite link is proposed and demonstrated ...

    NASA's geostationary earth observatory and its optical instruments

    Koczor, R.J. | Tema Archiv | 1991
    of his home planet. One platform is the Geostationary Earth Observatory, which will contain several optical instruments for remote sensing of ...

    Recent developments in the use of plastic optical fiber for an embedded wear sensor (for marine propulsion shafting)

    Cohen, E.I. / Mastro, S.A. / Nemarich, C.P. et al. | Tema Archiv | 1999
    This paper describes recent developments of a practical, low cost embedded plastic optical fiber (POF) wear sensor system for the condition ...

    Interaction of micro-organisms (fungi and bacteria) with optical and electronic materials

    Kukhtarev, N.V. / Kukhtareva, T.V. / Jones, J. et al. | Tema Archiv | 2002
    for unattended and space-based optical and electronic systems. We have investigated the process of growth and distribution of fungal elements ...

    Using 0.8 mu m DMILL technology to realize an encoder/decoder for optical transmission at 550 Mbps

    Claus, H. / Cabuy, F. / Roef, P. | Tema Archiv | 1999
    data is digitized at the antennae. An optical harness distributes clocking data to the antennae to synchronize the digitizing of the data, and ...

    Image transmission in mid-IR using a solid state laser pumped optical parametric oscillator

    Prasad, N.S. / Kratovil, P. / Magee, J.R. | Tema Archiv | 2002
    We present image transmission using a mid-wave IR (MWIR) optical transceiver based free-space data link under low visibility conditions ...

    Environments stressful to optical materials in low earth orbit

    Musikant, S. / Malloy, W.J. | Tema Archiv | 1990
    Spacecraft in low earth orbit experience a variety of environments which are potentially damaging to materials and to optical systems ...

    Measuring space radiation impact on the characteristics of optical glasses; measurement results and recommendations from testing a selected set of materials

    Fruit, M. / Gusarov, A.I. / Doyle, D.B. | Tema Archiv | 2002
    Radiation sensitivity of glass is a general concern for the designer of Space optical instruments. ASTRIUM, in cooperation with SCK-CEN ...

    Model of image generation in optronic (electro-optical) sensor systems (IGOSS)

    Wigren, C. | Tema Archiv | 1998
    A model for Image Generation in Optronic (electro-optical) Sensor Systems (IGOSS) has been developed. The aim of this model is to study and ...

    New technique using CO2 laser for high heating and simultaneous optical characterization of IR windows

    Simoneau, J. / Feller, R. / Peatfield, C. et al. | Tema Archiv | 1997
    magnitude and distribution of the heat on the window. Therefore, for each missile application, it is critical to be able to determine the optical ...

    Connection of optical fibers embedded in aircraft composite components

    Sjogren, A. / Lindstrom, B. | Tema Archiv | 2000
    This paper describes a manufacturing technique for embedding standard fiber-optic connection hardware in aircraft composite components ...