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 [DPRG] About the Hall-effect sensor? Message index sorted by: [ date ] [ thread ] [ subject ] [ author ] Previous message: [DPRG] About the Hall-effect sensor? Next message: [DPRG] About the Hall-effect sensor? Subject: [DPRG] About the Hall-effect sensor? From: Mike McCarty jmccarty at ssd.usa.alcatel.com Date: Fri May 26 09:48:12 CDT 2000 ```When a charged particle moves at right angles to magnetic lines of force, it experiences an electrical force at right angles to both its path and the magnetic field. If one takes a rectangular conductive sheet and places it so that it is perpendicular to a magnetic field, then passes current through the sheet from one side to the opposite parallel side, the current flows in a curve. This causes there to be a current across the sheet as well. The strength of this current increases with the strength of the magnetic field. This is the Hall Effect. With no magnetic field Voltage applied to this side so current flows in here | V +---------------+ | | | | | | | | | | V V V V V V V | | | | | | | | | | | | | | | | | | | No voltage or current appears out of this edge. | V V V V V V V | | | | | | | | | | | | | | | | | | | | V V V V V V V | +---------------+ | V Current flows out here With magnetic field Voltage applied to this side so current flows in here | V +---------------+ | | | | | | | | | | V V V V V V V | | / | | | | | | | Current |/ | | | | | | | The current curves, and some flows across the also < V V V V V V | plate at right angles to the applied voltage flows | / | | | | | | out | / / / / / / | here |< < < < < < | +---------------+ | V Current flows out here It can be used to sense proximity, for example, to a magnet. It can also be used to count revolutions of a wheel. Mike ---- char *p="char *p=%c%s%c;main(){printf(p,34,p,34);}";main(){printf(p,34,p,34);} This message made from 100% recycled bits. I don't speak for Alcatel <- They make me say that. On Fri, 26 May 2000, LO VENG CHEONG wrote: > Hello, my dear friends, > > Can anyone tell me about the basic function and some application in > mobile robots about a Hall-effect sensor? > Also, any information can i find in the internet for learning it. I > would like to learn about it. > > Any information are wellcome! thank you very much! > > Raymond Law, student in Asia > > > > _______________________________________________ > DPRGlist mailing list > DPRGlist at dprg.org > http://nimon.ncc.com/mailman/listinfo/dprglist > ``` Previous message: [DPRG] About the Hall-effect sensor? Next message: [DPRG] About the Hall-effect sensor? Message index sorted by: [ date ] [ thread ] [ subject ] [ author ] More information about the DPRG mailing list