Surveying System Rotating Mirror Window Structural Integration
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Solution Overview
Problem
Existing surveying systems with rotating mirrors face challenges in achieving high accuracy and frequency measurements while maintaining mechanical and optical quality, resulting in high costs and complexity.
Innovation Solution
A surveying system with a rotating mirror unit and a measuring unit, where a window made of light-transmitting material is integrated to support both units, allowing the beam of measuring light to traverse over a wide range of rotational positions, thus simplifying the structure while maintaining high performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional surveying system uses separate supports for the measuring unit and rotating mirror unit, then mechanical stability is improved, but device complexity and cost increase
Solution Approach 1:
The patent merges the support functions by having the window serve dual purposes: it acts as both the protective cover for the measuring unit and the support structure for the rotating mirror unit. This integration eliminates the need for separate support components, thereby reducing device complexity while maintaining mechanical stability through the unified structural design.
Solution Approach 2:
The window is designed with multi-functionality, serving as both a protective element for the measuring unit and a structural support for the rotating mirror unit. This universal component performs multiple functions simultaneously, reducing the overall number of parts needed in the system and simplifying the overall structure while maintaining reliability.
2Adaptability or versatility
If the window fully surrounds the axis of rotation, then the beam can traverse at all rotational positions improving measurement coverage, but manufacturing complexity and cost increase
Solution Approach 1:
Instead of making the entire window uniformly complex, the patent applies local quality by providing the extended portion only in the specific region where the beam needs to traverse during certain rotational positions. The window maintains a simpler standard configuration in areas where full extension is not required, thereby reducing overall manufacturing complexity while ensuring adequate measurement coverage where needed.
3Measurement precision
If the window extends over a wide angular range, then measurement accuracy is improved across more positions, but the structural complexity and cost increase
Solution Approach 1:
The patent implements local quality by extending the window portion only in the specific angular range where high measurement accuracy is required, rather than uniformly extending the entire window structure. This targeted extension provides the necessary measurement precision for critical positions while keeping the overall window structure as simple as possible in non-critical areas.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The proposed solution enables high-accuracy and high-frequency measurements with simplified structures, reducing costs and complexity while maintaining mechanical and optical quality.
Implementation Method 1
a window made of a material transmitting light of the beam, wherein the window is arranged in a beam path of the beam of measuring light reflected from the rotating mirror
Implementation Method 2
a rotating mirror, wherein the measuring unit directs the generated beam onto the rotating mirror from which the beam is reflected to positions on the object depending on the rotational positions of the mirror
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
A surveying system, comprises a support 3, 7; a rotating mirror unit 29 including a mounting structure 25, a motor 27 mounted on the mounting structure and having a shaft 31 rotatable about a first axis 33, and a mirror 29 mounted on the shaft 31; a measuring unit 11 including a mounting structure 13 and a light source 15 and optics 17, 18, 19 mounted on the mounting structure 13 for directing a beam 23 of measuring light onto the mirror surface 35; and a window 41 mechanically connecting the mounting structure 13 of the measuring unit 11 and the mounting structure 25 of the rotating mirror unit 29.