Synchronization of a High-Speed Prism Camera by Frame-Counting Technique

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Publisher: SMPTE
Doc Type: Journal Article
Article Type: research-article
Abstract: Development of motion-picture cameras capable of framing rates as high as 17/msec has made possible the scientific and technical investigations of transient phenomena of less than one-millisecond duration. Synchronization of such phenomena with the very high framing speed now possible is not easily accomplished with conventional timing apparatus, however, because of the uncertainty inherent in camera speed characteristics. An improved system has been developed at the Naval Research Laboratory in which the picture frames are counted electronically, and the event to be photographed is triggered after a preset count has been reached, independent of the time required to reach a given point on the length of film. Precise location of the desired data with respect to the film length often eliminates the necessity of processing an entire 100-ft roll of film, thus greatly expediting the completion of records. All components in this system are commercially available at a total cost comparable with conventional timing apparatus.
Publication Date: 1959-03-01
DOI: 10.5594/J14444
Link: https://doi.org/10.5594/J14444
Author(s): D. A. Hall, S. O. Bailey

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D. A. Hall and S. O. Bailey; Synchronization of a High-Speed Prism Camera by Frame-Counting Technique, Journal of the SMPTE ( Volume: 68, Issue: 3, March 1959); SMPTE, 1959. Available at https://doi.org/10.5594/J14444

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D. A. Hall and S. O. Bailey; Synchronization of a High-Speed Prism Camera by Frame-Counting Technique, Journal of the SMPTE ( Volume: 68, Issue: 3, March 1959); SMPTE, 1959. Available at https://doi.org/10.5594/J14444

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<span class="citation">D. A. Hall and S. O. Bailey; <cite>Synchronization of a High-Speed Prism Camera by Frame-Counting Technique</cite>, Journal of the SMPTE ( Volume: 68, Issue: 3, March 1959); SMPTE, 1959. Available at <a href="https://doi.org/10.5594/J14444" target="_blank" rel="noopener">https://doi.org/10.5594/J14444</a></span>

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D. A. Hall and S. O. Bailey; Synchronization of a High-Speed Prism Camera by Frame-Counting Technique, Journal of the SMPTE ( Volume: 68, Issue: 3, March 1959); SMPTE, 1959
doi: 10.5594/J14444
url: https://doi.org/10.5594/J14444

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<li>
D. A. Hall and S. O. Bailey; <cite id="bib-10-5594-j14444">Synchronization of a High-Speed Prism Camera by Frame-Counting Technique</cite>, Journal of the SMPTE ( Volume: 68, Issue: 3, March 1959); SMPTE, 1959
<span class="doi">10.5594/J14444</span>
</li>