Title:
磁気マルチポールホイールをスキャンする磁気抵抗センサ
Document Type and Number:
Japanese Patent JP4653379
Kind Code:
B2
Abstract:
A position transmitter includes at least one magnetoresistive sensor and an associated magnetic multipole wheel having a large number of uniformly arranged pole pairs ( 2 ). The at least one sensor comprises first, second third, and fourth magnetoresistive resistors that are electrically connected as a Wheatstone bridge with four half bridges, with a voltage UO being fed in one bridge diagonal and a sinusoidal or cosinusoidal signal being produced on the other diagonal. A distance (d) between the first and second or third and fourth resistors located paral el to one another is selected with reference to a scanning direction of the multipole wheel, such that it is not equal the wavelength of a pole pair. A distance between the first and second resistors and between the third and fourth resistors is the same.
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Inventors:
Gunter Haas
Henrik Zigle
Henrik Zigle
Application Number:
JP2002521929A
Publication Date:
March 16, 2011
Filing Date:
August 21, 2001
Export Citation:
Assignee:
ROBERT BOSCH GMBH
International Classes:
G01D5/245; G01D5/14; G01D5/16; H01L43/08
Domestic Patent References:
| JP9218053A | ||||
| JP4043915A |
Attorney, Agent or Firm:
Toshio Yano
Einzel Felix-Reinhard
Reinhard Einsel
Einzel Felix-Reinhard
Reinhard Einsel