Shaft rotation sensor with magnetic sensors angularly spaced apart with respect to a magnetic source
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G01B-007/30
G01P-003/487
B60T-008/32
출원번호
US-0349279
(1994-12-05)
발명자
/ 주소
Scheiber Donald J. (Columbia City IN)
출원인 / 주소
Hughes Electronics (Los Angeles CA 02)
인용정보
피인용 횟수 :
11인용 특허 :
0
초록▼
Shaft rotation sensor, including: two directional magnetic sensors disposed with respect rotating magnetic source, to sense magnetic field vector component generated by magnetic source; the magnetic sensors being disposed to provide output signals, having a sine/cosine relationship, representing mag
Shaft rotation sensor, including: two directional magnetic sensors disposed with respect rotating magnetic source, to sense magnetic field vector component generated by magnetic source; the magnetic sensors being disposed to provide output signals, having a sine/cosine relationship, representing magnitude of magnetic field vector component. In another aspect of the invention, a shaft rotation sensor, including: first and second directional magnetic sensors disposed with respect to rotating magnetic source, such that first sensor senses, and provides first output representing, magnitude of first magnetic field component and second sensor senses, and provides second output representing, magnitude of second magnetic field component orthogonal to first magnetic field component; and first and second outputs being electrically connected in series to provide first output channel. First sensor also senses, and provides third output representing, magnitude of second magnetic field component, and second sensor also senses, and provides fourth output representing, magnitude of first magnetic field component; and third and fourth outputs being electrically connected in series to provide second output channel having output orthogonal to output of first output channel. In this latter aspect, the sensor provides rotation sensor which is immune to uniform external magnet field.
대표청구항▼
A shaft rotation sensor, comprising: (a) first and second directional magnetic sensors, having first and second cores, respectively, angularly spaced apart from each other in a plane orthogonal to the axis of rotation of said magnetic source, such that said first sensor senses, and provides a first
A shaft rotation sensor, comprising: (a) first and second directional magnetic sensors, having first and second cores, respectively, angularly spaced apart from each other in a plane orthogonal to the axis of rotation of said magnetic source, such that said first sensor senses, and provides a first output representing, the magnitude of a first magnetic field component and said second sensor senses, and provides a second output representing, the magnitude of a second magnetic field component orthogonal to said first magnetic field component; (b) said first and second outputs being electrically connected in series to provide a first output channel: (c) said first sensor also senses, and provides a third output representing, the magnitude of said second magnetic field component, and said second sensor also senses, and provides a fourth output representing, the magnitude of said first magnetic field component; and (d) said third and fourth outputs being electrically connected in series to provide a second output channel having an output orthogonal to the output of said first output channel as said rotating member rotates.
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이 특허를 인용한 특허 (11)
Vallmajó I Ribas, Llorenç, Angle sensing in an off-axis configuration.
Serra,Stefano; Carrus,Antonio; Cipriani,Chiara; Albizzati,Enrico; Caretta,Renato, Method for monitoring tyre deformations and monitoring system therefor.
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