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A New Type of Microphotometer

Nature volume 153, pages 81–82 (1944)Cite this article

Abstract

UNDER this title1 R. Fürth gave a short description of an instrument designed for providing a practically instantaneous record on a cathode ray oscillograph of the density distribution along a short straight line on a photographic plate. This record was in fact obtained by the superposition of two traces writing in opposite directions on the screen of the cathode ray oscillograph, corresponding to the two directions of the vibrational motion of the plate through the slit image. A rather thick curve resulted, therefore, with loss in detail compared with the records of other existing types of microphotometers. In addition, fluctuations in frequency of the mains voltage by which the instrument is operated could cause slight displacements of the two traces2.

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References

  1. Fürth, R., NATURE, 149, 730 (1942).

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  2. Fürth, R., Proc. Phys. Soc. London, 55, 34 (1943).

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Authors and Affiliations

  1. Department of Mathematical Physics, University, Edinburgh,

    R. W. PRINGLE

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  1. R. W. PRINGLE
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PRINGLE, R. A New Type of Microphotometer. Nature 153, 81–82 (1944). https://doi.org/10.1038/153081b0

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