integrated Hall probe free from the planar Hall effect[EPFL]

mt7344

Three-axis teslameter with integrated Hall probe free from the planar Hall effect
Abstract – The first commercially available teslameter with a
  b% a5 g4 E5 [$ o; J: kfully integrated 3-axis Hall probe is described. The Hall probe
chip contains horizontal and vertical Hall elements, analogue
$ E' {6 q! ]& [7 a9 y% celectronics, and a synchronisation circuit. A horizontal Hall
element measures the perpendicular component, and two vertical
Hall devices measure the two in-plane components of a magnetic
* L1 \3 J2 N. v, d  wfield. Current spinning in the Hall devices cancels offset, 1/f
noise, and the planar Hall voltage. The analogue electronic
: e$ Y& N/ ]. {6 m  }module of the teslameter cancels the residual offset and
* S$ F$ G& V/ y- b( u5 w( qcompensates temperature dependence and non-linearity of the
Hall voltages. The digital module provides A/D conversion and
communication to a computer.
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網路上抓的 paper, 希望對大家有幫助!!
! \) b- ]+ P/ Z0 m8 o' B權限10 & RDB=0
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[ 本帖最後由 mt7344 於 2007-6-9 06:55 PM 編輯 ]