EM Probe Cavity and Absorbing Flange for Noise Isolation
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Solution Overview
Problem
Existing electromagnetic (EM) probes face challenges in effectively monitoring biological tissues due to sensitivity to noise from external sources and interference from skin and fat layers, which affects signal quality and accuracy.
Innovation Solution
The EM probe design includes a cup-shaped cavity with a circumferential flange and layers of absorbing material to reduce noise interference and enhance signal quality. The circumferential flange is designed to minimize external noise and improve mechanical coupling with the skin, while the absorbing layers dissipate electromagnetic radiation, reducing parasitic signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional EM probe design is used, then the probe can detect electromagnetic radiation from biological tissues, but the probe is sensitive to noise from external sources and interference from skin and fat layers
Solution Approach 1:
The patent applies absorbing material to the outer surface of the probe to convert harmful electromagnetic noise and parasitic signals into beneficial attenuation, improving signal quality by selectively absorbing unwanted electromagnetic radiation from external sources and skin/fat layers while allowing target tissue signals to pass through
Solution Approach 2:
The absorbing material acts as an intermediary layer between the probe and external electromagnetic sources, mediating the interaction by filtering out harmful noise and parasitic signals before they reach the probe's sensing elements, thereby improving measurement precision
2Ease of manufacture
If the probe structure is simplified, then manufacturing is easier, but noise reduction and signal isolation capabilities are reduced
Solution Approach 1:
The patent uses a thin film of absorbing material applied to the probe's outer surface, providing effective noise reduction and signal isolation without adding significant structural complexity. This thin film approach maintains ease of manufacture while achieving reliable electromagnetic interference suppression
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 design significantly reduces noise interference and enhances signal quality by isolating the EM probe from external noise sources and minimizing parasitic signals, leading to more accurate monitoring of biological tissues.
Implementation Method 1
at least one layer of a material, for absorbing electromagnetic radiation, applied over at least one of a portion of the circumferential flange and a portion of the outer surface of the cup shaped cavity
Data Source
AI summary
An electromagnetic (EM) probe for monitoring one or more biological tissues. The EM probe comprises a cup shaped cavity having an opening and an interior volume, a circumferential flange formed substantially around the cup shaped cavity, in proximity to the opening, at least one layer of a material, for absorbing electromagnetic radiation, applied over at least one of a portion of the circumferential flange and a portion of the outer surface of the cup shaped cavity, and at least one EM radiation element which performs at least one of emitting and capturing EM radiation via the interior volume.