Electricity: measuring and testing – Magnetic – Displacement
Patent
1993-09-30
1996-06-25
O'Shea, Sandra L.
Electricity: measuring and testing
Magnetic
Displacement
324252, 32420724, 338 32H, 257427, 257426, G01R 3306, H01L 2722, H01L 4306
Patent
active
055303455
ABSTRACT:
For detecting the position of a magnetic element having a field component zeroing in at least one point in space, typically in a plane, a plurality of elementary Hall-effect sensors are integrated side by side and aligned in a direction perpendicular to the zeroing field component and to the current flowing through the elementary sensors. The elementary sensor generating a zero output voltage therefore indicates the zero position of the field component and consequently the position of the magnetic element with respect to the position sensor, so that The outputs of the elementary sensors provide a quantized numeric code indicating the position of the magnetic element.
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"Hall Effect Transducer's" Microswitch, Honeywell Division, 1982, pp. 1-3, 158-159.
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Murari Bruno
Storti Sandro
Villa Flavio
Driscoll David M.
Morris James H.
O'Shea Sandra L.
Patidar Jay M.
SGS--Thomson Microelectronics S.r.l.
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