Laser interferometer for fluid pressure
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J.N. Butters
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Article
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1969
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Elsevier Science
β 299 KB
Note. The influence of lens abberations are not observed, because the interference pattern is small (approximately 3mm diameter) Influence on the spatial frequency caused by using a sphere as the Fourier transform plane, cannot be observed for the same reason. ## CONCLU~ON The method described i