Journal of the Society of Motion Picture Engineers ( Volume: 41, Issue: 11, November 1943)
[ACTIVE]
Precision Recording Instrument for Measuring Film Width
Metadata
- Publisher
- SMPTE — White Plains, NY, USA
- Doc Type
- Journal Article
- Content Type
- Original Research
- Abbreviated Title
- J SMPE
- Volume
- 41, No. 11, pp. 395–408
- Abstract
- The paper discusses a mechanical electronic device which continuously measures the width of film to an accuracy of 0.002 mm. The basic circuit is quartz oscillator having a L.C. circuit which is slightly detuned from the resonant frequency. The percentage detuning gives a measure of the film width. Curve shows that for a film variation of 0.250 mm the relationship between film width and measurable current is linear. An inexpensive 0–1 milliammeter can be used without sacrificing accuracy.
- Publication Date
- 1943-11-01
- DOI
10.5594/J09793- ISSN
- Print:
0097-5834 - Link
- https://doi.org/10.5594/J09793
- Author(s)
- S. C. CoronitiH. Scott BaldwinAgfa Ansco, Binghamton, N. Y.
- Copyright
- © 1943 Society of Motion Picture and Television Engineers, Inc.
Bibliographic Reference(s)
- 1 Whiddington R. : “The Ultra Micrometer,” Phil Mag. , 40 , series 6, No. 25 6 ( 1940 ), p. 63 . EXTERNAL
- 2 Dowling J. : “Direct-Reading Ultramicrometer,” Roy. Dublin Soc. , 16 , ( 1920–1922 ), p. 187 . EXTERNAL
- Henny K. : “Electron Tubes in Industry,” textbook, 2nd Edition, p. 447 . EXTERNAL
- 3 Vigoureux P. : “Quartz Resonators and Oscillators,” H. M. Stationary Office ( London ), 1939 . EXTERNAL
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S. C. Coroniti and H. Scott Baldwin; Precision Recording Instrument for Measuring Film Width, Journal of the Society of Motion Picture Engineers ( Volume: 41, Issue: 11, November 1943); SMPTE, 1943. Available at https://doi.org/10.5594/J09793
Snippet:
S. C. Coroniti and H. Scott Baldwin; Precision Recording Instrument for Measuring Film Width, Journal of the Society of Motion Picture Engineers ( Volume: 41, Issue: 11, November 1943); SMPTE, 1943. Available at https://doi.org/10.5594/J09793
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S. C. Coroniti and H. Scott Baldwin; Precision Recording Instrument for Measuring Film Width, Journal of the Society of Motion Picture Engineers ( Volume: 41, Issue: 11, November 1943); SMPTE, 1943. Available at https://doi.org/10.5594/J09793
Snippet:
<span class="citation">S. C. Coroniti and H. Scott Baldwin; <cite>Precision Recording Instrument for Measuring Film Width</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 41, Issue: 11, November 1943); SMPTE, 1943. Available at <a href="https://doi.org/10.5594/J09793" target="_blank" rel="noopener">https://doi.org/10.5594/J09793</a></span>
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S. C. Coroniti and H. Scott Baldwin; Precision Recording Instrument for Measuring Film Width, Journal of the Society of Motion Picture Engineers ( Volume: 41, Issue: 11, November 1943); SMPTE, 1943
doi: 10.5594/J09793
url: https://doi.org/10.5594/J09793
doi: 10.5594/J09793
url: https://doi.org/10.5594/J09793
Snippet:
<li> S. C. Coroniti and H. Scott Baldwin; <cite id="bib-10-5594-j09793">Precision Recording Instrument for Measuring Film Width</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 41, Issue: 11, November 1943); SMPTE, 1943 <span class="doi">10.5594/J09793</span> </li>