Three-dimensional measurement system

• US 20050270545A1
• Filed: 03/25/2005
• Published: 12/08/2005
• Est. Priority Date: 04/20/2004
• Status: Active Grant

• Current Assignee: Airbus Operations SAS (Airbus SE)
• Original Assignee: Airbus France
• Inventors: Taffet, Bruno
• Granted Patent: US 7,355,724 B2
• Time in Patent Office: Days
• US Class Current: 356/614
• CPC Class Codes: G01S 17/89 for mapping or imaging

Abstract

The invention relates to a three-dimensional measurement system comprising a hardware part and a software part, in which the hardware part includes a mobile two-axis assembly (12) associated with a remote measurement device (13) installed on a fixed part (14), each axis being equipped with an angular encoder (22) restoring the direction of a sighting at any time, and in which the software part includes a control part at the input and an acquisition part at the output.

Claims

1. Three-dimensional measurement system for reconstitution of a real surface, comprising a hardware part including a mobile two-axis assembly associated with a remote measurement device installed on a fixed part, each axis being equipped with an angular encoder restoring the direction of a sighting at any time, and a software part including a control part at the input and an acquisition part at the output, wherein the software part includes means of real time comparison of the two angular positions measured at a scanning profile set value.

2. System according to claim 1, in which the mobile two-axis assembly is in the shape of an <

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3. System according to claim 2, in which, in this mobile two-axis assembly, rotation about each axis is controlled by four modules:

bearings assuring guidance between a first and a second part,

a motor for rotation of the first part with respect to the second part,

an angular encoder for restoring the position about this axis to the software part,

a cable passage module.

4. System according to claim 1, in which the remote measurement device is a laser device.

5. System according to claim 1, in which the fixed part (14) is a tripod.

6. Process for implementation of the system according to claim 1 in an aircraft cockpit, including steps to:

position the hardware part of the system at the center of the cockpit,

calibrate the position of the system, by aiming at a known point in the cockpit,

make this measurement point correspond to a corresponding CAD point,

position and calibrate by positioning this hardware part at different positions in the cockpit.

7. Process according to claim 6, in which the hardware part of the system is positioned on the walls or ceiling of the cockpit by a suction cup device.