Abstract
A form of iron clad Thomson astatic galvanometer of high sensibility is described. It differs from the types described in the literature in that it is semi-portable, has a removable core containing coils and suspended magnetic system, has comparatively small weight and is easily adjusted to a high sensibility.
© 1922 Optical Society of America
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B. J. Spence
J. Opt. Soc. Am. 6(6) 625-628 (1922)
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