MRI Transmitting Antenna Level Sensor Self-Diagnosis
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Solution Overview
Problem
Magnetic resonance imaging (MRI) system transmitting antenna level sensors are prone to drift errors over time, leading to measurement inaccuracies and increased maintenance costs due to the need for frequent factory inspections to detect failures.
Innovation Solution
A transmitting antenna level sensor with multiple detection channels and a control unit that compares power readings from these channels to detect deviations, sending notification messages for failures and providing condition information, thereby enabling prompt failure detection and reducing maintenance costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the TALES is regularly returned to the factory for inspection to overcome drift error, then measurement accuracy is maintained, but maintenance costs significantly increase and failures cannot be found promptly
Solution Approach 1:
The patent implements preliminary action by introducing a self-test function that performs detection before actual drift errors affect measurement accuracy. The system proactively monitors its own operational status through multiple detection channels, enabling early identification of potential failures without waiting for regular factory inspections or actual drift occurrence.
Solution Approach 2:
The patent applies self-service by enabling the TALES to perform self-detection and self-diagnosis through multiple internal detection channels. The system monitors its own operational status and detects drift errors autonomously, eliminating the need for external factory inspections and reducing dependency on periodic maintenance while maintaining measurement accuracy.
2Measurement precision
If the TALES is regularly returned to the factory for inspection to overcome drift error, then measurement accuracy is maintained, but maintenance costs significantly increase
Solution Approach 1:
The patent applies self-service by enabling the TALES to perform self-detection and self-diagnosis through multiple internal detection channels. The system monitors its own operational status and detects drift errors autonomously, eliminating the need for expensive external factory inspections and reducing dependency on periodic maintenance while maintaining measurement accuracy.
Solution Approach 2:
The patent implements feedback by creating a closed-loop monitoring system where detection channels continuously monitor the TALES operational status and provide feedback to the control unit. This feedback mechanism enables real-time identification of drift errors and potential failures, allowing for timely maintenance decisions that reduce overall maintenance costs while preserving measurement accuracy.
3Reliability
If multiple detection channels with different structures are used, then failure detection capability is improved, but device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the detection function into multiple independent detection channels, each with different structural characteristics. This segmentation allows the system to monitor the TALES operational status through diverse detection pathways, improving failure detection capability while maintaining manageable complexity through modular channel design.
Solution Approach 2:
The patent employs composite materials analogy by combining detection channels with different structural properties (analogous to composite materials) to enhance overall detection reliability. Each channel's unique structure provides complementary detection capabilities, and their combination creates a more robust failure detection system that surpasses the capability of any single channel while maintaining reasonable complexity through systematic integration.
Data Source
AI summary
A transmitting antenna level sensor of a magnetic resonance imaging system and a magnetic resonance imaging system is provided. A first detection channel is used for detecting a first power of a first radio frequency signal source, and a second detection channel is used for detecting a second power of the first radio frequency signal source. A control unit is used for comparing the first power with the second power to obtain a first comparison result, and a first notification message is sent according to the first comparison result.