actinometer

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

A selenium actinometer has been described in the Comptes Rendus in a communication from M. Morize, of Rio de Janeiro.

From Scientific American Supplement, No. 484, April 11, 1885 by Various

It should register about 40 deg. with an actinometer used to test silver solutions.

From Photogravure by Blaney, Henry R.

A Johnson's actinometer is very useful to time the exposure.

From Photogravure by Blaney, Henry R.

With daylight, however, the light is constantly fluctuating, and this renders the use of an actinometer a necessity for correct exposure.

From Wireless Transmission of Photographs Second Edition, Revised and Enlarged 1919 by Martin, Marcus J.

You may sometimes find that the actinometer indicates a very different exposure from what the eye would lead you to expect.

From Scientific American Supplement, No. 492, June 6, 1885 by Various