Is it possible to measure the grade of a magnet? Even if you 'only' have a gaussmeter? It is interesting to know, since neodymium magnets are expensive and it would be nice to know, if you get what you pay for. In this video I attempt to confirm the grade on some magnets before trying to determine the grade of a questionable, cheap N52 magnet. Let's see what it takes to determine the grade of a magnet - or at least get an indication of it... Spreadsheet for calculating flux: https://www.supermagnete.de/eng/faq/How-do-you-calculate-the-magnetic-flux-density Formulas used in the spreadsheet: https://www.researchgate.net/publication/262707508_Alternative_method_to_calculate_the_magnetic_field_of_permanent_magnets_with_azimuthal_symmetry The F71 Teslameter donated by Lake Shore Cryotronics: https://www.lakeshore.com/products/Gaussmeters/F71-F41-teslameters/Pages/Overview.aspx Block magnets donated by supermagnete: https://www.supermagnete.com/quadermagnete-neodym/quadermagnet-50.8mm-50.8mm-25.4mm_Q-51-51-25-N My Patreon-page: https://www.patreon.com/Brainiac75 Older video with more on grades: https://www.youtube.com/watch?v=idLGVcwzM5Q Mapping field of huge magnets: https://www.youtube.com/watch?v=OtEgdHcjsTk Did you miss one of my videos?: null FULL MUSIC CREDITS Time code: 0:01 "Interloper" Kevin MacLeod (incompetech.com) ISRC: USUAN1100401 Time code: 0:37 "Perspectives" Kevin MacLeod (incompetech.com) ISRC: USUAN1300027 Time codes: 2:46 + 11:25 "Floating Cities" Kevin MacLeod (incompetech.com) ISRC: USUAN1600018 Time code: 6:36 "Long Note Three" Kevin MacLeod (incompetech.com) ISRC: USUAN1100424 Time code: 9:03 "Clear Waters" Kevin MacLeod (incompetech.com) ISRC: USUAN1100290 All music above licensed under Creative Commons: By Attribution 4.0 License http://creativecommons.org/licenses/by/4.0/ Time code: 10:47 Mix of two tracks: 1) The Shimmering by fran_ky (freesound.org/s/237363) Licensed under Creative Commons 0 license 2) "Spacial Harvest" Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 4.0 License http://creativecommons.org/licenses/by/4.0/ ISRC: USUAN1100653 #Magnet #Grade #Brainiac75