The Production of Elliptic Interferences in Relation to Interferometry, Vol. 3 (Classic Reprint) - Hardcover

Carl Barus

9780266412199: The Production of Elliptic Interferences in Relation to Interferometry, Vol. 3 (Classic Reprint)

Hardcover

ISBN 10: 026641219X ISBN 13: 9780266412199

Publisher: Forgotten Books, 2018

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Explore how displacement interferometry reveals tiny electrical and optical effects, using careful experiments that measure minute shifts in light paths.

In these chapters, the author describes instrument designs and practical hurdles when studying elliptic interference. The work covers setups with quadrant electrometers, mirrors, and light sources, and discusses how damping, alignment, and environmental noise influence measurements. The goal is to show how an interferometer can detect very small changes in index of refraction, displacement, and electrical charge, while illustrating the limits of sensitivity and the need for careful calibration.

How a displacement interferometer translates tiny mirror movements into measurable signals
How different damping methods (like water or acid dampers) affect needle motion and stability
The relationship between observed ellipses, micrometer adjustments, and the voltages applied to measure small potentials
The practical challenges of achieving clean interference rings and precise index measurements under real lab conditions

Ideal for readers interested in historical methods of optical measurement and interferometry, especially in the study of very small electrical and optical effects.

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