MBB has more than 10 years experience with HMS/D systems on helicopters. The results of conducted tests of Helmet Mounted Sights (HMS) and Helmet Mounted Displays (HMD) will be presented. To compare the accuracy of the different HMS-Systems (on magnetic, acoustic or optical basis) it is useful to find and unify a test procedure for verification. The test conditions vary, dependent on the principle of the HMS system. Magnetic systems should be tested with the influence of magnetic disturbances, Ultrasonic systems under occurrence of noise and changing characteristics of the dispersion medium air, Optical systems under high luminance to check saturation effects of the sensors. Modern Integrated Helmets (IH) consist of CRTs for displaying binocular images of TV- or Infrared-cameras and superimposed symbology and a second channel with Image Intensifier Tubes (IIT). Important points for checking CRTs are the resolution, distortion, homogeneity and brightness in day and night time. The most important test for the IIT-channel is the resolution measured as a function of luminance of the test pattern. Tests of the basic helmet regarding head fit, earphone, centre of gravity, weight etc. are also necessary because these properties have an influence on the performance of the complete man-machine system.


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    Titel :

    Helmet mounted sight and display testing


    Weitere Titelangaben:

    Prüfung von helmmontierten Sicht- und Anzeigegeräten


    Beteiligte:
    Böhm, H.D. (Autor:in) / Schreyer, H. (Autor:in) / Schranner, R. (Autor:in)


    Erscheinungsdatum :

    1991


    Format / Umfang :

    29 Seiten, 20 Bilder, 14 Quellen



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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