Some content of this application is unavailable at the moment.
If this situation persist, please contact us atFeedback&Contact
1. (WO1997019323) POSITION ENCODER
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1997/019323 International Application No.: PCT/GB1996/002896
Publication Date: 29.05.1997 International Filing Date: 25.11.1996
Chapter 2 Demand Filed: 19.06.1997
IPC:
G01D 5/20 (2006.01)
G PHYSICS
01
MEASURING; TESTING
D
MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED BY A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; TRANSFERRING OR TRANSDUCING ARRANGEMENTS NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
5
Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
12
using electric or magnetic means
14
influencing the magnitude of a current or voltage
20
by varying inductance, e.g. by a movable armature
Applicants:
SCIENTIFIC GENERICS LIMITED [GB/GB]; Harston Mill Harston Cambridgeshire CB2 5NH, GB (AllExceptUS)
DAMES, Andrew, Nicholas [GB/GB]; GB (UsOnly)
Inventors:
DAMES, Andrew, Nicholas; GB
Agent:
BERESFORD, Keith, Denis, Lewis ; Beresford & Co. 2-5 Warwick Court High Holborn London WC1R 5DJ, GB
Priority Data:
9523991.923.11.1995GB
Title (EN) POSITION ENCODER
(FR) CODEUR DE POSITIONS
Abstract:
(EN) A sensor head (111) is provided for use in an apparatus for indicating the position of a movable member relative to a fixed member, having two multi-turn sensor windings (133 and 135), each comprising a repetitive pattern of series connected alternate sense loops of conductor. Sensor winding (135) is in spatial phase quadrature with sensor winding (133), and the arrangement of the windings is such that the mid points of the sensor windings (133 and 135) coincide. The sensor head is particularly suited for use in indicating the position of a movable member relative to a fixed member as it is relatively insensitive to longitudinal tilt relative to the other member.
(FR) La présente invention concerne une tête détectrice (111) destinée à être utilisée dans un appareil pour indiquer la position d'un élément mobile par rapport à un élément fixe. Elle présente deux enroulements détecteurs (133, 135) multispires dont chacun comporte un système répétitif de boucles conductrices de sens alternés, montées en série. L'enroulement détecteur (135) est en quadrature de phase spatiale avec l'enroulement détecteur (133), et ces enroulements sont disposés de telle manière que leurs points médians coïncident. Cette tête détectrice est particulièrement adaptée à l'indication de la position d'un élément mobile par rapport à un élément fixe car elle est relativement insensible à l'inclinaison longitudinale par rapport à l'autre élément.
Designated States: JP, US
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0862727US6124708JP2001520743