Modular OCT Measuring Interface for Machining Beam Alignment
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Solution Overview
Problem
Existing measuring devices for machining systems require manual adjustments and customized optical components, leading to high costs, expertise requirements, and potential human errors when adapting the reference arm to the sample arm.
Innovation Solution
A measuring device with a modular design, comprising a base module and an interchangeable module that can form a central portion of the reference or sample arm, allowing for easy adaptation of the optical path length and dispersion without manual adjustments to the optical components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If manual adjustments are made to adapt the reference arm to the sample arm, then the measuring device can be customized for specific machining systems, but the costs increase and expertise requirements rise
Solution Approach 1:
The reference arm is divided into multiple interchangeable modules, each with a different optical path length. This segmentation allows the system to adapt to different sample arm lengths by simply replacing modules rather than performing manual adjustments, thereby reducing costs and eliminating the need for expert intervention while maintaining high adaptability.
Solution Approach 2:
The interchangeable modules are designed with standardized interfaces that allow them to be universally applied across different measuring device configurations. A single set of modules can serve multiple purposes by being swapped into different positions, enabling the system to handle various optical path length requirements without requiring custom components for each application.
2Adaptability or versatility
If manual adjustments are made to adapt the reference arm to the sample arm, then customization is possible, but human errors may occur
Solution Approach 1:
By segmenting the reference arm into pre-configured modules with standardized connection interfaces, the system eliminates manual adjustment steps that are prone to human error. The modular design ensures that each module is pre-calibrated and can be reliably connected without requiring operator intervention, thereby maintaining customization capability while significantly improving setup reliability.
Solution Approach 2:
The modular modules are designed to be self-aligning and self-locking through standardized interfaces, eliminating the need for manual positioning and adjustment by operators. This self-service mechanism ensures that modules can be quickly swapped without introducing human errors, while still allowing the system to be customized for different applications by selecting appropriate modules.
3Manufacturing precision
If optical components are customized for individual cases, then the measuring device can be precisely adapted, but the setup requires high expertise and time
Solution Approach 1:
The reference arm is segmented into standardized modules that are pre-manufactured with precise optical path lengths. This eliminates the need for time-consuming on-site customization while maintaining manufacturing precision, as each module is factory-calibrated and can be quickly swapped to achieve the required precision for different machining applications.
Solution Approach 2:
The optical modules are pre-configured and pre-calibrated during manufacturing with precise optical path lengths tailored for specific applications. This preliminary action ensures that when the modules are deployed, the measuring device is already precisely adapted to the required specifications, eliminating the need for time-consuming on-site adjustments while maintaining high precision.
4Adaptability or versatility
If the reference arm is made length-adjustable, then adaptation to sample arm changes is possible, but the device complexity increases
Solution Approach 1:
Instead of implementing a continuous adjustment mechanism that would increase device complexity, the reference arm is segmented into discrete interchangeable modules. This segmentation provides adaptability through module replacement while keeping the overall device structure simple and manageable, as each module is a standardized component rather than part of a complex adjustment mechanism.
Solution Approach 2:
The system achieves dynamic adaptability through the ability to quickly swap modules rather than through continuous mechanical adjustment. This dynamic approach allows the reference arm length to be changed as needed while maintaining a simple static structure for each individual module, thereby providing versatility without increasing overall device complexity.
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 modular design enables reliable and cost-effective adaptation of the reference arm to the sample arm, reducing the need for manual adjustments and minimizing errors, while allowing for quick customization and easy use in various machining situations.
Implementation Method 1
a beam generating unit (18) configured to generate a sample beam (20) and a reference beam (22) that can be caused to interfere
Implementation Method 2
a reference arm (26) that is optically connected to the beam generating unit (18) and in which the reference beam (22) is optically guided, wherein the reference arm (26) substantially simulates the sample arm (24) in terms of optical properties, in particular in terms of optical path length
Data Source
AI summary
The invention relates to a measuring device (10; 10a) for a machining system (12; 12a) for machining a workpiece (14; 14a) using a high-energy machining beam (16; 16a), wherein the measuring device (10; 10a) comprises a beam generating unit (18; 18a) configured to generate a sample beam (20; 20a) and a reference beam (22; 22a) that can be caused to interfere for the performance of optical interference measurements such as optical coherence tomography; a sample arm (24; 24a) that is optically connected to the beam generating unit (18; 18a) and in which the sample beam (20; 20a) is optically guided so that it can be projected onto the workpiece (14; 14a); a reference arm (26; 26a) that is optically connected to the beam generating unit (18; 18a) and in which the reference beam (22; 22a) is optically guided; and a measuring interface (28; 28a) that can be used to couple the sample beam (20; 20a) into the machining beam (16; 16a); the measuring device (10; 10a) comprising a base module (30; 30a) and an interchangeable module (32; 32a) that is connectable or connected thereto. The interchangeable module (32; 32a) comprises a beam guiding portion (48a) that includes optical components (50a) for guiding the sample beam (20a) and/or the reference beam (22a) and that is configured to form a central portion (52; 52a) of the sample arm (24; 24a) and/or the reference arm (26; 26a).The invention further relates to a system comprising a measuring device (10; 10a) and a plurality of interchangeable modules (32, 32′, 32″), a machining system (12; 12a) and a method for adjusting a measuring device (10; 10a).


