Fiber Optic Focuser Window Alignment Optimization
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Solution Overview
Problem
Existing optical fiber sensors lack precise alignment methods for optimizing performance, relying on approximate alignment marks that do not provide the necessary precision for fiber optic applications.
Innovation Solution
A method involving shining light through a fiber optic focuser into a window, receiving reflections, calculating deltas between reflection intensities, and rotating the window to achieve optimal rotational alignment, which is then fixed to the focuser for enhanced signal optimization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If approximate alignment marks are used during assembly, then manufacturing simplicity is maintained, but manufacturing precision deteriorates
Solution Approach 1:
The patent applies preliminary action by pre-calculating and storing optimal rotation angles in a lookup table before actual sensor assembly. The system pre-determines the ideal rotational orientation that maximizes signal strength, then uses this pre-computed information to guide the alignment process during manufacturing, eliminating the need for complex real-time optimization procedures.
Solution Approach 2:
The patent introduces an intermediary computational layer that acts as a mediator between the physical sensor components and the alignment process. A computer system calculates optimal alignment parameters and provides guidance through the user interface, serving as an intermediary that translates complex optical alignment requirements into simple rotational angle instructions for the operator.
2Manufacturing precision
If complex alignment optimization procedures are implemented, then manufacturing precision improves, but productivity deteriorates
Solution Approach 1:
The patent resolves this contradiction by performing the computationally intensive optimization calculations in advance and storing results in a lookup table. During actual assembly, the system simply retrieves pre-computed optimal angles rather than performing real-time optimization, thereby maintaining high alignment precision while preserving fast assembly speeds.
Solution Approach 2:
The patent uses copying by creating a digital model of the optical system and performing virtual alignment optimizations in software. The optimal parameters derived from this digital copy are then applied to the physical system, allowing complex optimization to be performed virtually without impacting physical assembly time.
3Measurement precision
If no active optimization is performed, then device complexity is minimized, but measurement precision deteriorates
Solution Approach 1:
The patent implements feedback by measuring the actual signal strength from the sensor and using this measurement to determine whether the current alignment is optimal. The system compares the measured signal against expected values and adjusts the rotation angle accordingly, creating a closed-loop feedback mechanism that automatically optimizes alignment based on actual performance.
Solution Approach 2:
The patent applies self-service by enabling the sensor system to automatically determine and adjust its own optimal alignment without requiring external intervention or complex external alignment equipment. The system uses its own operational signal to guide the alignment process, allowing the device to self-optimize during or after assembly.
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
This approach allows for precise alignment of the window with the fiber optic focuser, improving the performance of optical fiber sensors by maximizing signal intensity and accuracy.
Implementation Method 1
receiving with a sensing device, via the fiber optic focuser, a first reflection from a first surface of the window and a second reflection from a second surface of the window
Data Source
AI summary
A system and method for optimizing a fiber optic sensor by properly clocking or rotationally orienting a window with a fiber optic focuser. This method may include shining light through the focuser into the window and receiving with a reflectometer a first reflection from a first surface of the window and a second reflection from a second surface of the window. Next, the method may include calculating a delta of intensities between the first and second reflections, and then rotating an orientation of the window to a next rotational orientation. The steps of rotating the orientation of the window, receiving reflections, and calculating their delta may be repeated any plurality of times to solve for a plurality of deltas. Then, the method may include the steps of determining which one of the deltas is the largest and fixing the window to the focuser at a rotational orientation associated therewith.