System for recording an object space

US7330242B2 · kind B2 · utility

Assignees

• RIEGL LASER MEASUREMENT SYSTEMS GMBH · AT
• Ferrotron Technologies GmbH · DE

Inventors

• Rainer Reichert · Horn, AT
• Johannes Riegl · Trabenreith, AT
• Andreas Stoeger · Weitensfeld im Gurktal, AT
• Rolf Lamm · Aachen, DE
• Andreas Ullrich · Eßlingen, DE

Key dates

• Filing date: May 22, 2006
• Grant date: Feb 12, 2008
• Expiry date: May 22, 2026

Classification

• Technology area (CPC G): Physics
• CPC primary: G01S17/88
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A system for recording an object space has a opto-electronic distance sensor which uses a signal propagation time method, and a transmitter for transmitting optical, signals, as well as a receiver (E) for receiving optical signals, reflected by objects located in the target space. The system comprises a scanner for deflecting optical axes of the transmitter and receiver (S and E). The optical axes of the transmitter and receiver (S and E) for example, are substantially parallel. An evaluation system determines distance values from the propagation time or phase position of the transmittal optical signals, and the space coordinates of the individual data elements result from the distance values and the beam deflection implemented by the scanner. The system comprises a rotary measurement head mounted on a pillow block, and a mirror system fixed relative to the measurement head, which deflects beams axially incident on the hollow shaft in the radial direction and vice versa. The radiation from stationary transmitter (S) can be introduced in the axial direction relative to the hollow shaft and can be transmitted in the radial direction through the mirror system. The radiation reflected …