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    Wavelets for ultrasonic echo identification in aircraft fuel tanks

    Sadok, M. | Tema Archiv | 2002
    to gauge fuel in commercial and military aircraft. Ultrasonics are among other techniques that were tested for such purposes. Generally, in ...

    Wave propagation sensing for damage detection in plates

    Ghoshal, A. / Martin, W.N. / Schulz, M.J. et al. | Tema Archiv | 2002
    Health monitoring of aerospace structures can be done passively by listening for acoustic waves generated by cracks, impact damage and ...

    Use of disparate sensors for the detection of chemical and biological events

    Sickenberger, D.W. / Birenzvige, A. / Reyes, F. | Tema Archiv | 2002

    Nondestructive evaluation and health monitoring of aerospace materials and civil infrastructures : 18 - 19 March 2002, Newport Beach, USA

    Gyekenyesi, Andrew L. | TIBKAT | 2002
    Verlag: SPIE, the International Society for Optical Engineering , Bellingham, Wash.
    Schlagwörter: Aerospace engineering

    Investigating the use of ultrasonic guided waves for aging wire insulation assessment

    Anastasi, R.F. / Madaras, E.I. | Tema Archiv | 2002
    becomes brittle and cracks. This exposes the underlying conductive wire to the potential for short circuits and fire. The difficulty is that ...

    Thruster-plume-induced contamination measurements from the PIC and SPIFEX flight experiments

    Soares, C.E. / Barsamian, H. / Rauer, S. | Tema Archiv | 2002
    developed for the International Space Station (ISS). ...

    Model reduction and substructuring for computing responses of structures containing frequency-dependent viscoelastic materials

    Germes, S. / Van Herpe, F. | Tema Archiv | 2002
    systems, there is still a need for finite element models capable of predicting the frequency response of structures containing VEM. We address in ...

    Small power systems for law enforcement applications

    Sims, P.E. / Mauk, M.G. / Sulima, O.V. | Tema Archiv | 2002
    sensors such as those under development for the Unattended Ground Sensor (UGS) program are suitable for some of these applications. The ...

    Multi-element adjustable transducer arrays for the ultrasonic scanning of aging aircraft

    Komsky, I.N. | Tema Archiv | 2002
    airplane structures. Conventional techniques for crack or corrosion characterization are based on either echo-amplitude measurements or time-of ...

    Deployment-ready multimode micropower wireless sensor networks for intrusion detection, classification, and tracking

    Horton, M.A. / Broad, A. / Grimmer, M. et al. | Tema Archiv | 2002
    clock all-weather surveillance and perimeter protection for field environments, including buildings, camp and tent locations, streets ...

    Acoustic monitoring of first responder's physiology for health and performance surveillance

    Scanlon, M.V. | Tema Archiv | 2002
    , blood pressure, activity, and other parameters can be continuously monitored with acoustic sensors and transmitted for remote surveillance of ...

    Railway track image processing to calibrate the photonic velocity sensor

    Fainberg, M.E. | Tema Archiv | 2002
    and parameters of navigation (definition of exact coordinate of a train on the railway). The accuracy measurement of velocity for rolling ...

    Extraction of properties of condensed outgassed species by thermogravimetric analysis

    Simpson, T.R. / Hall, D.F. / Ternet, G.K. | Tema Archiv | 2002
    evaluator (ASCME). This paper provides fitted parameters for Langmuire evaporation models of contaminants from 15 materials based upon kinetic ...

    Multisensor analyzer detector (MSAD) for low cost chemical and aerosol detection and pattern fusion

    Swanson, D.C. / Merdes, D.W. / Lysak, D.B. et al. | Tema Archiv | 2002
    mobility spectrometry (IMS), surface acoustic wave (SAW) detection, flame photometric detection (FPD), and other principles are candidates for ...

    Molecular contamination effects on the thermal emittance of highly reflective surfaces at cryogenic temperatures

    Chang, C.W. | Tema Archiv | 2002
    performance for low emissivity surfaces, the effects on optical performance will also be examined because changes of the optical characteristics such ...

    Contamination environment resulting from IUS stage II motor post-burn outgassing

    Kirshman, D.J. | Tema Archiv | 2002

    Measurements of optically transparent and mirrored specimens from the POSA, LDEF A0034, and EOIM-III space flight experiments

    Pippin, H.G. / Finckenor, M.M. | Tema Archiv | 2002
    Deposition of molecular contamination onto spacecraft surfaces changes the thermo-optical and electrical properties of those surfaces. Such ...

    Calibrating and controlling system based on VXIbus of static verifying platform of wind tunnel balance

    Fan, Zhigang / Zhang, Fengsheng / He Jin et al. | Tema Archiv | 2002
    DOF displacements of the target. The system based on the VXIbus (the VMEbus Extensions for Instrumentation) includes calibrating subsystem and ...

    Reflectivity of the Al-N coating: results of mechanical and environmental tests

    Anisimov, V.P. / Anisimova, I.A. / Kashirin, V.A. et al. | Tema Archiv | 2002
    environmental tests. The Al-N coating has been designed to reduce the stray sunlight background in the satellite-borne optical instruments and charge ...

    Impact of helmet-mounted display visor spectral characteristics on visual performance

    Marasco, P.L. | Tema Archiv | 2002
    , they can be used as the final element in the optical system that relays visual information to the observer. To enhance their usefulness as the ...

    Helicopter and aircraft detection and classification using adaptive beamforming and tracking techniques

    Koersel, A.C. van / Beerens, S.P. | Tema Archiv | 2002
    noise and to reduce classification errors in a multi-target environment, a real time adaptive beamformer algorithm is developed for a three ...

    Biologically inspired robots as artificial inspectors

    Bar-Cohen, Y. | Tema Archiv | 2002
    engineering tools. For many years, the trend has been to automate processes in order to increase the efficiency of performing redundant tasks where ...

    Fiber grating traffic monitoring systems

    Kunzler, M. / Edgar, R. / Udd, E. et al. | Tema Archiv | 2002
    -effective than currently available sensors. A primary purpose of the freeway installation was to test the sensors for vehicle classifier and ...

    Laser remote chemical sensors at Raytheon

    Cohn, D.B. / Fukumoto, J.M. / Shepard, J.G. et al. | Tema Archiv | 2002
    , angle-tuned, optical parametric oscillator wavelength shifter. The system provides for power efficiency, compactness, and light weight that are ...

    Active structural acoustic control: numerical modeling, robust controller design and experimental validation

    Deuble, F. / Hofmann, C. / Kroplin, B. et al. | Tema Archiv | 2002
    microphones is investigated as an approach to this problem. For this a generic experiment has been set up. One objective of the work is to find and ...

    Urban gunshot and sniper location: technologies and demonstration results

    Lewis, G. / Shaw, S. / Crowe, M. et al. | Tema Archiv | 2002
    -optic sensors. To date, no one sensor technology has proven totally effective for a complete solution. PSI has a muzzle blast detection and ...

    Fabrication of adhesiveless lightweight flexible circuits using Langley Research Center soluble-imide "LaRC-SI" polyimide film

    Holloway, N.M.H. / Barnes, K.N. / Draughon, G.K. et al. | Tema Archiv | 2002
    for lighter-weight systems. With this, flex circuits are being used in lieu of heavier weight rigid circuit boards and flex is finding its way ...

    Remaining useful life prediction based on known usage data [5046-03]

    Kiddy, J. S. / International Society for Optical Engineering (SPIE) | British Library Conference Proceedings | 2003

    Design strength of optical glass

    Doyle, K.B. / Kahan, M.A. | Tema Archiv | 2003
    extremely conservative design approaches are typically used for optical elements made of glass. Determining a design allowable for glass elements is ...

    Application of wavelet analysis in two-dimensional ultrasonic flaw detection [5046-18]

    Achanta, A. R. / Rao, V. / International Society for Optical Engineering (SPIE) | British Library Conference Proceedings | 2003

    In-flight measurement of acoustic background noise for the development of impact detection algorithms [5046-37]

    Dittrich, K. W. / Mueller, G. / International Society for Optical Engineering (SPIE) | British Library Conference Proceedings | 2003

    Novelty detection technique with SLV for identification of core properties in honeycombs and cellular solids [5046-26]

    Scarpa, F. / Manson, G. / Ruzzene, M. et al. | British Library Conference Proceedings | 2003

    Validation of tapping sound analysis for damage detection of composite structures [5046-41]

    Hwang, J. S. / Kim, S. J. / International Society for Optical Engineering (SPIE) | British Library Conference Proceedings | 2003

    Aging wire insulation assessment by phase spectrum examination of ultrasonic guided waves [5046-29]

    Anastasi, R. F. / Madaras, E. I. / International Society for Optical Engineering (SPIE) | British Library Conference Proceedings | 2003

    Health monitoring techniques using integrated sensors [5046-31]

    Pfleiderer, K. / Stoessel, R. / Busse, G. et al. | British Library Conference Proceedings | 2003

    Lamb-wave beam-steering for integrated health monitoring applications [5046-17]

    Moulin, E. / Bourasseau, N. / Assaad, J. et al. | British Library Conference Proceedings | 2003

    Characterization of organic film with scanning acoustic microscopy [5046-14]

    Miyasaka, C. / Du, J. / Tittmann, B. R. et al. | British Library Conference Proceedings | 2003

    Preprocessing of Edge of Light images: toward a quantitative evaluation [5046-05]

    Liu, Z. / Forsyth, D. S. / Marincak, A. et al. | British Library Conference Proceedings | 2003

    Remote temperature and stress monitoring using low-frequency inductive sensing [5046-04]

    Shay, I. / Zilberstein, V. / Washabaugh, A. et al. | British Library Conference Proceedings | 2003

    Concepts using optical MEMS array for ladar scene projection

    Smith, J.L. | Tema Archiv | 2003
    fiber optic cables. The concept calls for an optical MEMS (micro-electromechanical system) steerable micro-mirror array. IFOV's are a cluster of ...

    Imaging ultrasonic sensor system SWISS completed 60.000 simulated flight hours to check structural integrity of aircraft subcomponent [5046-39]

    Kress, K.-P. / Baderschneider, H. J. / Guse, G. et al. | British Library Conference Proceedings | 2003

    GPR antipersonnel mine detection: improved deconvolution and time-frequency feature extraction [5046-33]

    Savelyev, T. G. / van Kempen, L. / Sahli, H. et al. | British Library Conference Proceedings | 2003

    Computerized time-reversal method for structural health monitoring [5046-07]

    Wang, C. H. / Rose, J. T. / Chang, F.-K. et al. | British Library Conference Proceedings | 2003

    NDE of composites delamination by infrared thermography [5046-30]

    Huang, S. / Li, L. / Yang, H. et al. | British Library Conference Proceedings | 2003

    Design of a built-in health monitoring system for bolted thermal protection panels [5046-44]

    Yang, J. / Chang, F.-K. / Derriso, M. M. et al. | British Library Conference Proceedings | 2003

    The role of epoxy resin in the mechanism of laser-generated ultrasound in carbon-fiber-reinforced composites [5046-11]

    Stratoudaki, T. / Edwards, C. / Dixon, S. et al. | British Library Conference Proceedings | 2003

    Detection of perturbations in thermal IR signatures: an inverse problem for buried land mine detection [5046-34]

    Lopez, P. / Sahli, H. / Vilarino, D. L. et al. | British Library Conference Proceedings | 2003

    Proposal for analog synthesis of a land mine detection system [5046-35]

    Pardo, F. / Domenech, G. / Ruiz, R. et al. | British Library Conference Proceedings | 2003

    Development and testing of an automated acousto-ultrasonic scan system [5046-10]

    Martin, R. E. / Gyekenyesi, A. L. / Roth, D. J. et al. | British Library Conference Proceedings | 2003

    Acousto-ultrasonic characterization of C/SiC composites under different loading configurations [5046-09]

    Cosgriff, L. M. / Martin, R. E. / Baaklini, G. Y. et al. | British Library Conference Proceedings | 2003

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