Hostname: page-component-848d4c4894-75dct Total loading time: 0 Render date: 2024-06-02T14:45:42.923Z Has data issue: false hasContentIssue false
  • English
  • Français

The Use of a Selenium Rectifier Photo-electric Cell for Submarine Photometry

Published online by Cambridge University Press:  11 May 2009

H. H. Poole  and
W. K. G. Atkins
H. H. Poole
Affiliation:
Registrar of the Royal Dublin Society
W. K. G. Atkins
Affiliation:
Head of the Department of General Physiology at the Plymouth Laboratory
Get access Rights & Permissions [Opens in a new window]

Extract

1. Measurements of the penetration of light of various colours into the sea were carried out by means of a selenium rectifier cell. The mean vertical absorption coefficients were: for blue, 0·177; green, 0·153; “white,” viz. no filter, 0·216; yellow, 0·243; red, 0·345. The results accord well with those obtained under similar conditions with emission cells and show that, for water a couple of miles offshore, green light penetrates best.

2. The current was measured using the potentiometer-telephone method as for emission cells, but determining the drop in potential across a low resistance, 10,100, or 1000 ohms. The motion of the ship was too violent to permit of the use of any available galvanometer of adequate sensitivity.

3. Rectifier cells are more convenient to use than emission cells, as the currents to be measured are much larger and the absence, of high potentials greatly simplifies all insulation problems. On the other hand the curvature of the illumination–current relation involves additional labour in standardizing and in calculating results.

Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 19 , Issue 2 , May 1934 , pp. 727 - 736
Copyright
Copyright © Marine Biological Association of the United Kingdom 1934

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Atkins, W. R. G., and Poole, H. H. 1933, 2. The photo-electric measurement of the penetration of light of various wave-lengths into the sea and the physiological bearing of the results. Phil. Trans. Roy. Soc. London, B., Vol. 222, pp. 129–164.Google Scholar
Atkins, W. R. G. 1933, 3. The use of cuprous oxide and other rectifier photo cells in submarine photometry. Journ. Mar. Biol. Assoc., N.S., Vol. XIX, pp. 67–72.CrossRefGoogle Scholar
Bergmann, L. 1931. Über eine neue Selen-Sperrschicht-Photozelle. Physik. Zeitschr., Vol. 32, pp. 286–288.Google Scholar
Clarke, G. L. 1933. Observations on the penetration of daylight into Mid-Atlantic and coastal waters. Biol. Bull., Vol. 65 (No. 2), pp. 317–337.CrossRefGoogle Scholar
Lange, B. 1930. Über eine neue Art von Photozellen. Physik. Zeitschr., Vol. 31, pp. 139–140.Google Scholar
Lange, B. 1931. Über die Temperaturabhängigheit des Sperrschicht-Photoeffektes. Loc. cit., Vol. 32, pp. 850–856.Google Scholar
Pearsall, W. H., and Ullyott, P. 1933. Measurement of light for biological purposes. Nature, Vol. 131, p. 694.CrossRefGoogle Scholar
Pettersson, H., and Landberg, S. 1934. Submarine daylight. Med. f. Göteborgs Högskolas Oceanografiska Inst., No. 6, p. 13 (Göt. Kungl. Vetenskaps—och Vitterhets—Samhälles Handl. Ser. B, Vol. 3, No. 7).Google Scholar
Pettersson, H. 1934. A transparency meter for sea-water. Loc. cit., No. 7, p. 17.Google Scholar
Poole, H. H., and Atkins, W. R. G. 1928. Further photo-electric measurements of the penetration of light into sea-water. Journ. Mar. Biol. Assoc., N.S., Vol. XV, pp. 455–483.CrossRefGoogle Scholar
Poole, H. H., and Atkins, W. R. G. 1933, 1. Experiments on the suitability of some rectifier photo cells for the measurement of daylight. Sci. Proc. Roy. Dublin Soc., Vol. 20 (No. 36), pp. 537–546.Google Scholar
Poole, H. H. 1933, 4. Some measurements of the brightness of various parts of the sky by means of a rectifier photo-electric cell. Loc. cit., Vol. 21 (No. 1), pp. 1–8.Google Scholar
Utterback, C. L., and the late Boyle, J. Watson.. 1933. Light penetration in the waters of the San Juan Archipelago. J. Optical Soc. Amer., Vol. 23, No. 10, p. 10.Google Scholar
Utterback, C. L. 1933. Light penetration in the waters of Southern Alaska. Loc. cit., No. 10, p. 5.Google Scholar