An Evans balance, also known as a Johnson Matthey magnetic susceptibility balance, is a scientific instrument used to measure the magnetic susceptibility of solids and liquids.[1][2] Magnetic susceptibility quantifies the extent to which a material becomes magnetized in an applied magnetic field. It can be measured using various devices that modify the shape of the magnetic field and measure resulting forces.[3] The Evans balance operates by measuring the force exerted on a magnet within a magnetic field shared with a sample as an indirect proxy for the magnetization of a sample, rather than by measuring the force exerted on the sample directly.[4]
- ^ "Magnetic Susceptibility of Coordination Compounds" (PDF). www2.chemistry.msu.edu. April 26, 2024. Retrieved April 26, 2024.
- ^ "Magnetic Susceptibility Balances (MSB) : Johnson Matthey | PDF | Magnet | Physics". Scribd. Retrieved 2024-04-26.
- ^ O'Connor, C.J. (1982). Lippard, S.J. (ed.). Magnetic susceptibility measurements. Progress in Inorganic Chemistry. Vol. 29. Wiley. p. 203. ISBN 978-0-470-16680-2.
- ^ "Illustration of commercial Evans balance". Archived from the original on 2011-07-16. Retrieved 2011-02-19.
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