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Galvanometer - Thomson Object Reg. No: ST 022125

Thomson galvanometer. Used at Melbourne Observatory
A form of Thomson glvanometer in which a simple magnetic system is used. The needle is controlled and held in its zero position by the combined action of the local field and magnet. The amount of the control and thus the sensitivity, as well as the position of the zero reading of the instrument may be altered by raising or lowering the curved magnet and turning it in azimuth.
Acquisition Information:
Transfer from Melbourne Observatory, 1945
Discipline: Technology

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
User: Melbourne Observatory, South Yarra, Victoria, Australia

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