permanent magnet material
31Diamagnetism — Levitating pyrolytic carbon Diamagnetism is the property of an object which causes it to create a magnetic field in opposition to an externally applied magnetic field, thus causing a repulsive effect. Specifically, an external magnetic field… …
32Imán de neodimio — niquelado colocado en el soporte de un disco duro. Imanes de …
33Level sensor — Level sensors are used to detect liquid level. The liquid to be measured can be inside a container or can be in its natural form (e.g. a river or a lake). The level measurement can be either continuous or point values. Continuous level sensors… …
34Domain theory of ferromagnetism — explains[1] two significant observations of materials such as iron: The material may become strongly magnetized by application of a weak external magnetizing field. The same specimen may return to the demagnetized state when the external field is …
35Hall effect — For the Colombian band, see The Hall Effect (band). The Hall effect is the production of a voltage difference (the Hall voltage) across an electrical conductor, transverse to an electric current in the conductor and a magnetic field perpendicular …
36Pole piece — Moving coil meter movement with the nearer pole piece partly cut away A pole piece is a structure composed of material of high magnetic permeability that serves to direct the magnetic field produced by a magnet. A pole piece attaches to and in a… …
37Magnetic refrigeration — Gadolinium alloy heats up inside the magnetic field and loses thermal energy to the environment, so it exits the field cooler than when it entered. Magnetic refrigeration is a cooling technology based on the magnetocaloric effect. This technique… …
38Faraday, Michael — born Sept. 22, 1791, Newington, Surrey, Eng. died Aug. 25, 1867, Hampton Court English physicist and chemist. Son of a blacksmith, he received only a basic education in a church Sunday school, but he went to work as an assistant to Humphry Davy,… …
39Hard disk drive — Hard drive redirects here. For other uses, see Hard drive (disambiguation). Hard disk drive Mechanical interior of a modern hard disk drive Date invented 24 December 1954 [1] …
40Магнитно-абразивная обработка (зарубежные публикации) — Публикации по магнитно абразивной обработке (МАО) в зарубежных журналах (на английском языке): 2009 Effects of Horizontal Vibration Assistance on Surface Roughness in Magnetic Abrasive Finishing / Shao Hui Yin, Yu Wang, Han Huang, Yong Jian Zhu,… …
