Artist: Telegraphen-Bauanstalt Von Siemens & Halske
ημερομηνία: 1900
μέγεθος: 44 x 16 cm
μουσείο: NEMO Science Museum (Amsterdam, Netherlands)
Τεχνική: Brass
This astatical mirror galvanometer measures current strength. The operating principle behind a mirror galvanometer is that a small mirror is rotated in proportion to the strength of the interaction between permanent magnets and coils through which the current to be measured flows. The astatical version is not affected by outside influences, such as the Earth
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