Photographic Determination Of Flight Characteristics Of Projectiles With Laser - Screen-Triggered Nanosecond Sparks

H. Preschern; P. Bettermann

doi:10.1117/12.957689

27 July 1979 Photographic Determination Of Flight Characteristics Of Projectiles With Laser - Screen-Triggered Nanosecond Sparks

H. Preschern, P. Bettermann

Author Affiliations +

Proceedings Volume 0189, 13th Intl Congress on High Speed Photography and Photonics; (1979) https://doi.org/10.1117/12.957689
Event: 13th International Congress on High Speed Photography and Photonics, 1978, Tokyo, Japan

Abstract

A photographic system is presented, using a modified Cranz-Schardin slow-motion-spark method in combination with Toepler's Schlieren method, to determine the space coordinates of a projectile in free flight. Fanned-out laser beams reflected by reflex foils enable highly accurate timing of the projectile's flight and subsequently, timing of the nanosecond-spark, which is optically split into two X and Y beams. By use of two condensor lenses, an even picture field illumination in the two cameras is guaranteed. By appropriate evaluation of the pictures from one or a few units connected in series, results,not only of the space coordinates of a projectile but also of its exterior ballistic behaviour, can be obtained.

Citation Download Citation

H. Preschern and P. Bettermann "Photographic Determination Of Flight Characteristics Of Projectiles With Laser - Screen-Triggered Nanosecond Sparks", Proc. SPIE 0189, 13th Intl Congress on High Speed Photography and Photonics, (27 July 1979); https://doi.org/10.1117/12.957689

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