Title:
SENSOR ASSEMBLY AND METHOD FOR DETERMINING A SPATIAL POSITION OF A FIRST PART RELATIVE TO A SECOND PART
Document Type and Number:
WIPO Patent Application WO/2012/019958
Kind Code:
A3
Abstract:
The invention relates to a sensor assembly for determining a spatial position of a first part (114) relative to a second part (112), comprising at least one magnet (74), which is arranged on the first part (114). The magnet (74) generates a magnetic field which extends to the second part (112). The sensor assembly further includes a first and a second magnetic field sensor (80, 82), which are arranged at a spatial distance (84) relative to one another on the second part (114). The at least one magnet (74) is positioned in the spatial distance between the magnetic field sensors (80, 82). The magnetic field sensors (80, 82) generate a respective output signal depending on the magnetic field. The output signals of the two second magnetic field sensors (80, 82) are combined to form a common sensor signal, which is dependent on the spatial position of the first part (114) relative to the second part (112) along a defined measuring axis (96). The defined measuring axis (96) is located transversely to the spatial distance, and the output signals of the first and second magnetic field sensors (80, 82) essentially represent a magnetic field direction at the location of the respective second magnetic field sensor (80, 82).
Inventors:
ENGEL THOMAS (DE)
LOREIT UWE (DE)
LOREIT UWE (DE)
Application Number:
PCT/EP2011/063415
Publication Date:
September 13, 2012
Filing Date:
August 04, 2011
Export Citation:
Assignee:
ZEISS IND MESSTECHNIK GMBH (DE)
SENSITEC GMBH (DE)
ENGEL THOMAS (DE)
LOREIT UWE (DE)
SENSITEC GMBH (DE)
ENGEL THOMAS (DE)
LOREIT UWE (DE)
International Classes:
G01D5/14; G01B7/012
Domestic Patent References:
| WO2001051893A1 | 2001-07-19 |
Foreign References:
| DE102005055905A1 | 2007-05-24 | |||
| DE3715698A1 | 1988-12-01 |
Attorney, Agent or Firm:
WITTE, WELLER & PARTNER (Stuttgart, DE)
Download PDF: