Automated Optical Coupler Testing via Switching and Segmentation

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Solution Overview

Problem

The testing of optical couplers in aircraft network data processing systems is time-consuming and labor-intensive, especially when multiple temperatures and large numbers of inputs and outputs are involved, leading to increased costs and longer delivery times.

Innovation Solution

An apparatus comprising an optical signal source, an optical signal detector system, a switching system, and a controller that automatically directs and measures optical signals through the optical coupler, reducing the need for manual testing by selectively routing signals and measuring intensities across inputs and outputs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual testing of optical couplers is performed at multiple temperatures with large numbers of inputs and outputs, then comprehensive testing coverage is achieved, but testing time and labor effort increase significantly

Engineering Contradiction:
Improvetesting coverageVSAvoidtesting time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The testing system segments the optical coupler testing into multiple independent temperature chambers, allowing parallel testing at different temperatures simultaneously. This divides the comprehensive testing task into concurrent segments rather than sequential operations, maintaining thorough coverage while reducing total testing time.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system employs universal test ports and standardized interfaces that can handle multiple inputs and outputs through a single integrated platform. The test system is designed to accommodate various coupler configurations (different numbers of inputs/outputs) using the same fundamental apparatus, eliminating the need for separate testing setups for each configuration.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If comprehensive testing of optical couplers is performed, then product quality is ensured, but manufacturing costs increase

Engineering Contradiction:
Improveproduct qualityVSAvoidmanufacturing cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The system merges multiple testing functions into a single integrated apparatus that can perform comprehensive testing across multiple temperatures and configurations simultaneously. By combining what would otherwise require separate testing equipment and procedures into one system, the cost per test is reduced while maintaining comprehensive quality assurance coverage.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The testing system efficiently manages parameter changes by automatically adjusting test conditions across different temperature chambers and configurations. The system's ability to rapidly transition between test parameters without requiring physical reconfiguration reduces both time and cost while ensuring comprehensive testing of all operational conditions.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If extensive testing procedures are implemented, then reliability is improved, but delivery times are extended

Engineering Contradiction:
ImprovereliabilityVSAvoiddelivery time
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

By segmenting the testing process across parallel temperature chambers and utilizing automated port switching, the system conducts comprehensive reliability testing simultaneously rather than sequentially. This parallel execution maintains thorough testing coverage while significantly reducing the total time required, thus improving delivery times without sacrificing reliability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The automated switching system enables continuous testing operations by rapidly transitioning between different input/output ports and test configurations without interruption. This eliminates idle time between test measurements and ensures that the testing apparatus is continuously productive, reducing overall delivery time while maintaining comprehensive testing coverage.

Inventive Principle:
Principle #20Continuity of useful action

Data Source

PatentEP2680464B1Optical Coupler Testing System
Publication Date: 2018.05.02 THE BOEING CO
  • EP2680464B1 patent drawingFigure 1
  • EP2680464B1 patent drawingFigure 2
  • EP2680464B1 patent drawingFigure 3~5

AI summary

A method and apparatus for testing an optical coupler. Inputs of the optical coupler are connected to output ports of an optical signal source. Outputs of the optical coupler are connected to input ports of an optical signal detector system. Optical signals sent through combinations of the inputs and the outputs of the optical coupler are measured using a switching system controlled by a controller to form measurements of the optical signals.