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Description: | Hunterian Museum G.1986.84 (typed on spirit gummed label removed). 2615 (serial number next to the Siemens and Halske logo). NICHT ARRETIERT (do not lock in german at the knife edge of the balance). Small magnet removed from Kelvin test set 19-3-[?56] (written on small piece of paper wrapped around a small correcting magnet. DES after OERSTED,Hans,Christian. 1819 Copenhagen, Denmark. MANU Siemens & Halske. late 19th or early 20th centur Berlin, Germany. DES after STURGEON,William. 1836 Adelaide Gallery of Practical Sciences, 7 Adelaide Street, London. England. This is a Du Bois magnetic balance for measuring the magnetic properties of test pieces. It has a DC field coil between the poles of an electromagnet, part of the magnetic yoke is a floating test piece bar that sits in the centre of the coil, above which sits a very heavy balance arm. The deflection of the balance arm will be proportional to the magnetic properties of the test piece. In effect the magnetic pull of the specimen is measured against the weight of the lead counterweight. | License: | http://www.hmag.gla.ac.uk/spirit/rights/ | Publisher: | Hunterian Museum and Art Gallery, University of Glasgow | Rights holder: | Hunterian Museum and Art Gallery, University of Glasgow | Subjects: | SCIENTIFIC COLLECTION : | Source: | Hunterian Museum | Creator: | Hunterian Museum and Art Gallery, University of Glasgow | Identifier: | http://www.huntsearch.gla.ac.uk/cgi-bin/... | Language: | en-GB | Go to resource |
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