Artist: Telegraphen-Bauanstalt Von Siemens & Halske
Dato: 1900
Størrelse: 44 x 16 cm
Museum: NEMO Science Museum (Amsterdam, Netherlands)
Teknikk: 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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