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Journal of the Society of Motion Picture Engineers ( Volume: 28, Issue: 6, June 1937)
[ACTIVE]

A Wide-Range, Linear-Scale Photoelectric Cell Densitometer

Metadata

Publisher
SMPTE
Doc Type
Journal Article
Article Type
research-article
Abstract
A photoelectric cell densitometer is described that makes use of a modulated light-source, stable high-vacuum photoelectric cell, and an audio amplifier provided with a logarithmic potentiometer and multiplier supplying the desired linearity of calibration, the instrument being operated entirely by alternating current. Theoretical factors, density standards, and design problems of the instrument are also considered.
Publication Date
1937-06-01
DOI
10.5594/J08529
Link
https://doi.org/10.5594/J08529
Author(s)
W. W. Lindsay, W. V. Wolfe
Source Data (JSON)

Full registry record with provenance metadata. Open directly: /api/doc/10.5594-J08529.json

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W. W. Lindsay and W. V. Wolfe; A Wide-Range, Linear-Scale Photoelectric Cell Densitometer, Journal of the Society of Motion Picture Engineers ( Volume: 28, Issue: 6, June 1937); SMPTE, 1937. Available at https://doi.org/10.5594/J08529
Snippet:
W. W. Lindsay and W. V. Wolfe; A Wide-Range, Linear-Scale Photoelectric Cell Densitometer, Journal of the Society of Motion Picture Engineers ( Volume: 28, Issue: 6, June 1937); SMPTE, 1937. Available at https://doi.org/10.5594/J08529

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W. W. Lindsay and W. V. Wolfe; A Wide-Range, Linear-Scale Photoelectric Cell Densitometer, Journal of the Society of Motion Picture Engineers ( Volume: 28, Issue: 6, June 1937); SMPTE, 1937. Available at https://doi.org/10.5594/J08529
Snippet:
<span class="citation">W. W. Lindsay and W. V. Wolfe; <cite>A Wide-Range, Linear-Scale Photoelectric Cell Densitometer</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 28, Issue: 6, June 1937); SMPTE, 1937. Available at <a href="https://doi.org/10.5594/J08529" target="_blank" rel="noopener">https://doi.org/10.5594/J08529</a></span>

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Preview:
W. W. Lindsay and W. V. Wolfe; A Wide-Range, Linear-Scale Photoelectric Cell Densitometer, Journal of the Society of Motion Picture Engineers ( Volume: 28, Issue: 6, June 1937); SMPTE, 1937
doi: 10.5594/J08529
url: https://doi.org/10.5594/J08529
Snippet:
<li>
W. W. Lindsay and W. V. Wolfe; <cite id="bib-10-5594-j08529">A Wide-Range, Linear-Scale Photoelectric Cell Densitometer</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 28, Issue: 6, June 1937); SMPTE, 1937
<span class="doi">10.5594/J08529</span>
</li>