Method of mutually aligning bodies and position-measuring sensor therefor

• US 6,195,615 B1
• Filed: 06/12/1998
• Issued: 02/27/2001
• Est. Priority Date: 12/12/1995
• Status: Expired due to Term

• Current Assignee: PRÜFTECHNIK Dieter Busch AG (Fortive Corp.)
• Original Assignee: PRÜFTECHNIK Dieter Busch AG (Fortive Corp.)
• Inventors: Lysen, Heinrich
• Primary Examiner(s): Hoff, Marc S.
• Assistant Examiner(s): Bui, Bryan
• Application Number:
  US09/077,887
• Time in Patent Office: 991 Days
• Field of Search: 702/94, 702/95, 333/28, 333/83, 332/81, 332/86, 385/134, 385/136, 356/149, 356/350
• US Class Current: 702/94
• CPC Class Codes: G01B 11/27 for testing the alignment of axes means for centering or aligning a light guide within a ferrule G02B6/3834
• CPC Class Codes: G01C 19/72 with counter-rotating light beams in a passive ring, e.g. fibre laser gyrometers

Abstract

The invention concerns a method of mutually aligning bodies, in particular for the parallel alignment of shafts, rollers and the like, which can be carried out economically and simply in a substantially shorter time than the known methods used for this purpose. The essence of the invention is the use of an optical gyroscope, for example a fiber-optic gyroscope (5), in a position-measuring sensor (4) which is placed in turn in a specific position on the bodies (1, 2, 3) to be mutually aligned for a given time interval to measure the relative angular position. The position-measuring sensor (4) supplies angle data on the basis of which it can be established whether, and if necessary which, position corrections have to be made at the bodies in order to bring them into the desired state of alignment. The invention further concerns a position-measuring sensor which can be used in the method according to the invention.

Claims

1. An angular position measuring sensor for determining a difference of angular position of two bodies with respect to each other, comprising:

a) a housing having at least one outer contact surface for mounting on a countersurface of a body;

b) at least one optical gyroscope in the housing, said optical gyroscope having an optical ring that is contained in a plane that is aligned in a defined manner relative to the outer contact surface of the housing; and

c) means for outputting from the sensor information for aligning the plane containing the optical ring relative to vertical and an angular position of the plane relative to a reference direction of the body to be aligned.

2. The angular position measuring sensor according to claim 1, wherein the optical gyroscope is a fiber-optic gyroscope.

3. The angular position measuring sensor according to claim 1, wherein the housing has a plurality of contact surfaces disposed in a defined relationship with respect to each other.

4. The angular position measuring sensor according to claim 3, wherein at least one of said contact surfaces comprises a pair of planar surface portions which are at an obtuse angle with respect to each other for engaging a curved countersurface of the body to be aligned.

5. The angular position measuring sensor according to claim 1, further comprising a plumb for determining said alignment of the plane containing the optical ring relative to vertical.

6. The angular position measuring sensor according to claim 1, further comprising a plumb for determining alignment of the plane containing the optical ring relative to vertical.

7. The angular position measuring sensor according to claim 1, wherein said means for outputting comprises a computer interface for outputting of data.

8. The angular position measuring sensor according to claim 1, further comprising a computer interface for outputting of data.