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Galvanometer - Thomson Astatic Differential, Elliott Bros, London Object Reg. No: ST 022126

Thomson astatic differential galvanometer, by Elliott Bros, London. Used at Melbourne Observatory.

A galvanometer measures electric currents.
Used by throwing a beam of light from a lamp on to the mirror fixed to the suspended magnetic needle which is reflected back on to a graduated scale.
Acquisition Information:
Transfer from Melbourne Observatory, 1945
Discipline: Technology
Dimensions: 30 cm (Height), 25 cm (Diameter)

More information

Tagged with: electric apparatus instruments, electrical equipment, galvanometers
Themes this item is part of: Melbourne Observatory Collection, Science & Measurement Collection, Positional Astronomy at Melbourne Observatory, Weights & Measures at Melbourne Observatory, Melbourne Observatory & Standard Time in Victoria, Astrographic Catalogue, Transits of Venus, 1874 & 1882, Buildings at Melbourne Observatory, Star Observations & Personal Equation, Meteorology at Melbourne Observatory, 1863-1908, Melbourne Observatory, 1863-1944, Geodetic Survey of Victoria, 1858-1872
Primary Classification: PHYSICAL SCIENCES
Secondary Classification: Electromagnetism
Tertiary Classification: measuring equipment
Inscriptions: Marked : 'ELIOTT BROS, LONDON'
Maker: Elliott Bros, London, Middlesex, England, Great Britain
User: Melbourne Observatory, South Yarra, Victoria, Australia

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