Wireless Tomography Module Eliminates Cable Parasitics
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Solution Overview
Problem
Existing tomography devices for electrical impedance tomography are limited by the need for electrical cables, which restrict the number of measuring ports and complicate adaptation to applications due to parasitic capacitances and inductances, making it difficult to achieve accurate spatially resolved analysis of multi-phase media.
Innovation Solution
The tomography device employs modular design with separate module control devices, module radio devices, and measuring ports, using wireless communication standards like Bluetooth or WLAN with TimeSync to eliminate the need for electrical cables, allowing for a greater number of measuring ports and simplified adaptation, while ensuring synchronized measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If electrical cables are used to connect measuring ports and control devices, then electrical signals can be transmitted reliably, but the number of measuring ports is limited and adaptation to applications becomes complex
Solution Approach 1:
The patent replaces the mechanical cable connection system with a wireless communication system. Measuring ports communicate with the control device via wireless signals (e.g., radio frequency communication), eliminating the need for physical electrical cables. This substitution resolves the contradiction by enabling easy adaptation to different applications without the complexity of cable routing and connections.
2Quantity of substance
If long electrical cables are used to connect measuring ports, then more measuring ports can be connected, but measurement errors increase due to parasitic capacitances and inductances
Solution Approach 1:
The patent replaces long electrical cables with wireless communication signals to connect measuring ports to the control device. This eliminates the parasitic capacitances and inductances inherent in long cables, thereby maintaining measurement accuracy while allowing an increased number of measuring ports to be connected without precision degradation.
3Reliability
If amplifiers are integrated into long cables, then measurement signals can be amplified, but the adaptation of the device becomes further complicated
Solution Approach 1:
The patent replaces the cable-integrated amplifier system with wireless communication. Signal amplification is performed at the receiving end (control device) rather than requiring physical integration into cables. This eliminates the complexity of cable adaptation while maintaining signal strength through digital signal processing and amplification capabilities at the control device.
4Adaptability or versatility
If measuring ports are arranged at a fixed perimeter position, then the device structure is simplified, but the ability to adapt to different application geometries is reduced
Solution Approach 1:
The patent implements dynamic positioning of measuring modules, where each module can be independently positioned at various locations around the measuring volume. The wireless communication system allows flexible arrangement without fixed structural constraints, enabling adaptation to different application geometries while maintaining simple module designs that can be dynamically reconfigured.
Data Source
AI summary
A tomography device for electric impedance tomography in a measuring volume having at least two measuring ports. The object is to provide a tomography device that allows adaptation to an application with less effort and/or a greater number of measuring ports than the prior art. The object is achieved with a tomography device in that the tomography device has at least two measuring modules, that each of the measuring modules is designed to be controllable via the respective module radio device and module control device and, in each case has a module control device, a module radio device and one of the measuring ports, and the respective measuring port can be arranged at a freely selectable position on a perimeter of the measuring volume, and that each of the module control devices is designed to carry out measurements for electrical impedance tomography using the respective measuring port.