Radiographic Sensor Housing Leak Detection for Component Reuse
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Solution Overview
Problem
Conventional radiographic imaging apparatuses with flexible TFT substrates are prone to breakage and liquid infiltration, leading to unusable components and reduced recyclability, especially when exposed to impacts or disinfectants, which affects the scintillator and TFT substrate, making recycling difficult.
Innovation Solution
Incorporation of a detector system within the housing to detect liquid infiltration and potential breakage, using electrode lines and detection circuits to prevent components from getting wet, allowing for timely intervention and improved recyclability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a flexible TFT substrate is used instead of glass, then the substrate becomes more impact-resistant and less likely to break, but the housing exterior remains vulnerable to impact and liquid infiltration
Solution Approach 1:
The housing is divided into multiple detachable components including a front housing, rear housing, and side housing that can be separated for access and replacement without replacing the entire apparatus, enabling selective replacement of damaged portions while preserving recyclable components
Solution Approach 2:
A cushioning member is provided inside the housing to absorb and mitigate the impact of falls or collisions before they reach the sensor panel and internal components, preventing damage to the scintillator and TFT substrate
2Reliability
If the radiographic imaging apparatus is replaced with a new one after liquid infiltration, then functional reliability is restored, but environmental protection and cost efficiency are compromised
Solution Approach 1:
A detector is provided that detects liquid infiltration into the housing before the liquid reaches and damages the scintillator and TFT substrate, allowing for preventive measures to be taken and the components to be protected from irreversible damage
Solution Approach 2:
The detector acts as an intermediary monitoring system that provides early warning of liquid infiltration, enabling timely intervention to protect the scintillator and TFT substrate from damage while maintaining functional reliability
3Measurement precision
If impact acceleration is cumulatively added and compared with a threshold, then impact events are detected, but sudden large impacts causing glass breakage cannot be predicted
Solution Approach 1:
The mechanical impact detection system is supplemented with a detector that monitors liquid infiltration events, providing a different detection mechanism that can identify conditions leading to component failure without relying solely on cumulative impact thresholds
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
Enhances the recyclability of radiographic imaging apparatus components by detecting liquid infiltration and breakage early, preventing further damage and ensuring components like the scintillator and TFT substrate can be reused.
Implementation Method 1
a sensor panel that includes a scintillator that emits light by receiving radiation
Data Source
AI summary
A radiographic imaging apparatus includes: a sensor panel that includes a scintillator that emits light by receiving radiation, and a plurality of radiation detection elements that detect the emitted light;a housing that stores the sensor panel; anda first detector that detects infiltration of a liquid into the housing.