AN INVESTIGATION OF THE MACBETH ILLUMINOMETER
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Published:1948-02-01
Issue:2
Volume:26f
Page:59-65
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ISSN:1923-4287
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Container-title:Canadian Journal of Research
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language:en
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Short-container-title:Can. J. Res.
Author:
Middleton W. E. Knowles,Ramsey A. R.
Abstract
The MacBeth illuminometer is a well known portable photometer of the visual type. Measurements of its errors show that the instrument gives reliable results if used with care. The most serious errors may occur when the color temperature of the light that is being measured differs greatly from that of the working standard lamp in the instrument. Under such conditions, different observers may obtain widely different results.
Publisher
Canadian Science Publishing
Subject
Pharmacology (medical),Complementary and alternative medicine,Pharmaceutical Science
Cited by
1 articles.
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