Arrangement for calibrating several gyro systems

• US 6,209,383 B1
• Filed: 05/21/1998
• Issued: 04/03/2001
• Est. Priority Date: 05/21/1997
• Status: Expired due to Term

• Current Assignee: Lfk-Lenkflugkã¶Rpersysteme GmbH (MBDA)
• Original Assignee: Daimler-Benz Aerospace AG (Mercedes-Benz Group AG)
• Inventors: Mueller, Reinhard, Trommer, Gert
• Primary Examiner(s): NOLAND, THOMAS
• Application Number:
  US09/081,764
• Time in Patent Office: 1,048 Days
• Field of Search: 73/1.37, 73/1.38, 73/1.77
• US Class Current: 73/1.37
• CPC Class Codes: G01C 19/72 with counter-rotating light beams in a passive ring, e.g. fibre laser gyrometers
• CPC Class Codes: G01C 25/005 initial alignment, calibration or starting-up of inertial devices

Abstract

Apparatus for simultaneous calibration of several multi-axis gyro systems, particularly fiber-optical gyro systems, in all measuring axes, uses a single-axle rotary table. A rotary frame is connected with the axis of rotation of the single-axis rotary table, and the gyro systems are arranged thereon in such a manner that corresponding measuring axes of the gyro systems experience an identical component of the rotation of the rotary frame, and none of the components is zero.

Claims

1. Apparatus for simultaneously calibrating all measuring axes of a plurality of multi-axis gyro systems, said apparatus comprising:

a single-axis rotary table; and

a rotary frame connected along an axis of rotation of the single-axis rotary table;

wherein the gyro systems are arranged on the rotary frame with corresponding measuring axes of the respective gyro systems aligned to receive an identical component of the rotation of the rotary frame, none of the components being zero.

2. Apparatus according to claim 1, wherein body diagonals of the measuring axes of all gyro systems take up within the rotary frame an identical angle with respect to the axis of rotation of the rotary frame, including the zero angle.

3. Apparatus according to claim 1 wherein the gyro systems are arranged within the rotary frame such that none of their measuring axes extends perpendicularly to the axis of rotation of the rotary frame, and the components in the direction of the axis of rotation are identical for all X-axes, all Y-axes and all Z-axes.

4. Apparatus according to claim 1 wherein the gyro systems are arranged within the rotary frame distributed about the axis of rotation of the single axis rotary table, in an n-radiated symmetrical manner.

5. Apparatus according to the claim 4 wherein the gyro systems are arranged within the rotary frame in several planes which are perpendicular to axis of rotation of the single axis rotary table.

6. Apparatus according to claim 1 wherein the rotary frame has a fastening device arranged in the axis of rotation for rotating an individual gyro system about a measuring axis of said individual gyro system.