Electromagnetic Probe Shielding via Metal Frame Integration
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Solution Overview
Problem
Existing devices for non-destructive probing of samples using electromagnetic wave reflection are not easily constructible, lacking a simple and effective mechanical framework for mounting electronic components.
Innovation Solution
A device with a metal body serving as a frame and spacer for circuit boards, featuring a shielding structure to reduce crosstalk and a damping structure to absorb electromagnetic waves, with separate chambers for driver and receiver circuitry, and a connector for easy assembly and disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a simple frame structure is used, then ease of manufacture is improved, but electromagnetic shielding and component mounting capability deteriorate
Solution Approach 1:
The metal body combines multiple functions into a single component: it serves as the mechanical frame structure, the mounting base for circuit boards, and the electromagnetic shielding enclosure. This integration achieves effective electromagnetic shielding without significantly increasing manufacturing complexity, as the shielding function is merged with the existing structural requirements.
Solution Approach 2:
The metal body acts as a multi-functional component that simultaneously provides structural support, component mounting surfaces, and electromagnetic shielding. This universal design allows a single element to fulfill multiple roles that would otherwise require separate components, maintaining ease of manufacture while addressing electromagnetic interference.
2Volume of moving object
If circuit boards are mounted close together, then device compactness is improved, but electromagnetic crosstalk between driver and receiver increases
Solution Approach 1:
The interior space is divided into multiple shielded chambers using metal partitions and separators. These partitions segment the space around the driver and receiver circuit boards, creating isolated electromagnetic zones. This segmentation allows compact mounting of circuit boards while preventing electromagnetic crosstalk through the physical division and shielding of each chamber.
Solution Approach 2:
Metal shielding partitions and separators act as intermediary barriers between the driver and receiver circuit boards. These intermediate shielding structures block electromagnetic fields from passing directly between adjacent circuit boards, enabling compact arrangement while maintaining electromagnetic isolation.
3Object-affected harmful factors
If separate shielded chambers are implemented, then electromagnetic isolation is improved, but device complexity increases
Solution Approach 1:
The shielding partitions and separators are integrated into the metal body structure itself, forming an unified shielding enclosure rather than adding separate discrete shielding components. This merging of shielding functions into the existing structural framework achieves effective electromagnetic isolation without proportionally increasing device complexity.
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
The solution enables a simple and effective construction of the device, reducing electromagnetic interference and facilitating easy assembly, while providing accurate probing of sample structures like concrete.
Implementation Method 1
a damping structure, advantageously separate from the metal body, arranged in the interior space in order to absorb and thereby damp the waves emitted by the antenna structure into the metal body and to suppress reflections originating from that side
Implementation Method 2
The metal body comprises a lateral wall that circumferentially encloses an interior space... This design electrically shields the interior space and therefore the side of the antenna structure that faces away from the sample
Implementation Method 3
the shield wall that shields the receiver antenna from the sender antenna in order to reduce direct crosstalk between these antennas
Data Source
AI summary
A device for the non-destructive probing of a sample by means of electromagnetic wave reflection includes a metal body as part of its frame. The metal body forms a lateral wall and a separating wall enclosing an interior space. On a first side of the metal body, a shielding structure forms a plurality of shielded chambers for receiving RF circuitry. Interior space faces the second side of the metal body. A first circuit board containing driver and receiver circuitry is mounted to the first side of the metal body, and a second circuit board containing an antenna structure is mounted to the second side thereof.