Paper I–3: Application of the “Slit-Aperture” Camera for Observation and Data Acquisition in Projectile Studies

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Publisher: SMPTE — White Plains, NY, USA
Doc Type: Journal Article
Content Type: Original Research
Abbreviated Title: J SMPTE
Volume: 71, No. 1A, pp. 375–378
Abstract: The “slit-aperture” camera was first constructed by making two modifications to a standard Fastax high-speed camera. The first modification was to remove the rotating prism which served as the shutter and the second was to insert a mask having a narrow aperture or slit in front of the film plane. The slit was oriented so that the long dimension extended across the width of the film and the narrow dimension or width of the slit was in the line of film travel. This camera has been utilized to secure: (1) large-size qualitative photographs of high-velocity projectiles; (2) angular attitude of projectiles in flight; (3) velocity data of projectiles having a minimum length of 2 ft using one camera; (4) rate of spin or the rotation about the longitudinal axis of a projectile; (5) deceleration of the base of a projectile during “crush-up” of the fuse after impacting a nonyielding target; and (6) acceleration of a projectile during the early phase of firing.
Publication Date: 1962-01-01
DOI: 10.5594/J18148XY
ISSN: Print: 0361-4573
Link: https://doi.org/10.5594/J18148XY
Author(s): Stanley M. Keen
Copyright: © 1962 Society of Motion Picture and Television Engineers, Inc.

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Stanley M. Keen; Paper I–3: Application of the “Slit-Aperture” Camera for Observation and Data Acquisition in Projectile Studies, Journal of the SMPTE ( Volume: 71, Issue: 1A, 1962); SMPTE, 1962. Available at https://doi.org/10.5594/J18148XY

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Stanley M. Keen; Paper I–3: Application of the “Slit-Aperture” Camera for Observation and Data Acquisition in Projectile Studies, Journal of the SMPTE ( Volume: 71, Issue: 1A, 1962); SMPTE, 1962. Available at https://doi.org/10.5594/J18148XY

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<span class="citation">Stanley M. Keen; <cite>Paper I–3: Application of the “Slit-Aperture” Camera for Observation and Data Acquisition in Projectile Studies</cite>, Journal of the SMPTE ( Volume: 71, Issue: 1A, 1962); SMPTE, 1962. Available at <a href="https://doi.org/10.5594/J18148XY" target="_blank" rel="noopener">https://doi.org/10.5594/J18148XY</a></span>

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<li>
Stanley M. Keen; <cite id="bib-10-5594-j18148xy">Paper I–3: Application of the “Slit-Aperture” Camera for Observation and Data Acquisition in Projectile Studies</cite>, Journal of the SMPTE ( Volume: 71, Issue: 1A, 1962); SMPTE, 1962
<span class="doi">10.5594/J18148XY</span>
</li>