Angle-measuring arrangement

• US 20060131489A1
• Filed: 11/30/2005
• Published: 06/22/2006
• Est. Priority Date: 12/17/2004
• Status: Active Grant

• Current Assignee: Dr. Johannes Heidenhain GmbH
• Original Assignee: Dr. Johannes Heidenhain GmbH
• Inventors: Riepertinger, Sebastian
• Granted Patent: US 7,308,765 B2
• Time in Patent Office: Days
• US Class Current: 250/231.130
• CPC Class Codes: G01D 11/24 Housings ; Casings for instruments
• CPC Class Codes: G01D 11/30 Supports specially adapted for an instrument; Supports specially adapted for a set of instruments

Abstract

An angle-measuring arrangement that includes a base body, a code disk, which is rotatable relative to the base body around an axis A and a contact area, which is laid out in such a way that electrical current or electrical signals can be conducted into the angle-measuring arrangement from a further stationary body. The contact area is arranged to be stationary with respect to the base body and has an identical electrical potential at every point of the contact area. The contact area is also configured in such a way that a first point is defined by polar coordinates R and α₁, and a second point by polar coordinates R and α₂, wherein the first and second points are located on the contact area, and R is a distance of an identical size of the first and second points from the axis A, and α₁ and α₂ represent different angles.

Claims

1. An angle-measuring arrangement, comprising

a base body;

a code disk, which is rotatable relative to said base body around an axis A; and

a contact area, which is laid out in such a way that electrical current or electrical signals can be conducted into said angle-measuring arrangement from a further stationary body, wherein said contact area;

is arranged to be stationary with respect to said base body;

has an identical electrical potential at every point of said contact area; and

is configured in such a way that a first point is defined by polar coordinates R and α

1, and a second point by polar coordinates R and α

2, wherein said first and second points are located on said contact area, and R is a distance of an identical size of said first and second points from said axis A, and α

1 and α

2 represent different angles.

2. The angle-measuring arrangement in accordance with claim 1, wherein said contact area comprises a ring body.

3. The angle-measuring arrangement in accordance with claim 1, wherein said angle-measuring arrangement is configured in such a way that it can be fixed in place on a further body via several fastening devices, wherein said fastening devices are arranged along a circular line, and an angular offset, β

, of adjoining fastening devices corresponds to a difference between α

1 and α

2.

4. The angle-measuring arrangement in accordance with claim 1, wherein said contact area comprises a pad on a circuit board.

5. The angle-measuring arrangement in accordance with claim 1, wherein said contact area comprises a strip conductor on a circuit board.

6. The angle-measuring arrangement in accordance with claim 4, wherein said contact area comprises a strip conductor on said circuit board.

7. The angle-measuring arrangement in accordance with claim 1, wherein said contact area is configured in such a way that a cooperation with a resilient component at an end of an external signal line is made possible.