Electrical Design Concepts of Exposure Meters with Special Reference to the Ikophot T

Metadata

Publisher: SMPTE
Doc Type: Journal Article
Article Type: research-article
Abstract: The Wheatstone Bridge principle can be effectively incorporated in the photo-electrically-actuated exposure controls of 8mm motion-picture cameras as well as in the circuitry of full-range CdS exposure meters. The basic electrical principles of photoelectric brightness measurement are surveyed. Methods of using a Wheat-stone Bridge to measure electrical resistance as a function of subject brightness are explored in terms of various balance indicators. The exact manner in which the Wheatstone Bridge principle has been applied to the circuitry and structure of the Ikophot T exposure meter is described.
Publication Date: 1967-10-01
DOI: 10.5594/J09088
Link: https://doi.org/10.5594/J09088
Author(s): Heinz H. Thiele

Source Data (JSON)

Full registry record with provenance metadata. Open directly: /api/doc/10.5594-J09088.json

Reference this Doc

Plain text (ISO 690 compliant)

Preview:

Heinz H. Thiele; Electrical Design Concepts of Exposure Meters with Special Reference to the Ikophot T, Journal of the SMPTE ( Volume: 76, Issue: 10, October 1967); SMPTE, 1967. Available at https://doi.org/10.5594/J09088

Snippet:

Heinz H. Thiele; Electrical Design Concepts of Exposure Meters with Special Reference to the Ikophot T, Journal of the SMPTE ( Volume: 76, Issue: 10, October 1967); SMPTE, 1967. Available at https://doi.org/10.5594/J09088

HTML (ISO 690 compliant)

Preview:

Snippet:

<span class="citation">Heinz H. Thiele; <cite>Electrical Design Concepts of Exposure Meters with Special Reference to the Ikophot T</cite>, Journal of the SMPTE ( Volume: 76, Issue: 10, October 1967); SMPTE, 1967. Available at <a href="https://doi.org/10.5594/J09088" target="_blank" rel="noopener">https://doi.org/10.5594/J09088</a></span>

SMPTE's HTML Pub

Preview:

Heinz H. Thiele; Electrical Design Concepts of Exposure Meters with Special Reference to the Ikophot T, Journal of the SMPTE ( Volume: 76, Issue: 10, October 1967); SMPTE, 1967
doi: 10.5594/J09088
url: https://doi.org/10.5594/J09088

Snippet:

<li>
Heinz H. Thiele; <cite id="bib-10-5594-j09088">Electrical Design Concepts of Exposure Meters with Special Reference to the Ikophot T</cite>, Journal of the SMPTE ( Volume: 76, Issue: 10, October 1967); SMPTE, 1967
<span class="doi">10.5594/J09088</span>
</li>