Wireless Inductive Power Interface for X-ray Detectors
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Solution Overview
Problem
Existing X-ray imaging systems face reliability issues due to wear and tear on wiring and cabling, as well as contamination of connector contacts, leading to maintenance problems and electromagnetic interference (EMI) that causes image artifacts.
Innovation Solution
The implementation of inductive power coupling and capacitive communication coupling between the X-ray imaging system and the portable digital X-ray detector eliminates the need for connectors, cabling, and wiring, reducing EMI and enhancing reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If connectors, cabling and wiring are used to provide power and communication, then power and communication can be transferred between the X-ray imaging system and portable digital X-ray detector, but the wiring and cabling become cumbersome and prone to wear and tear leading to maintenance problems
Solution Approach 1:
The patent replaces the mechanical connection system (connectors, cabling, wiring) with an electromagnetic field-based wireless power and communication system. The transmitter coil in the imaging system and receiver coil in the portable detector establish inductive coupling to transfer power and data without physical contact, eliminating wear and maintenance issues associated with mechanical connectors.
Solution Approach 2:
The patent introduces electromagnetic fields as an intermediary medium to transfer power and communication signals between the X-ray imaging system and the portable detector. The transmitter coil generates electromagnetic fields that couple with the receiver coil, serving as a non-contact intermediary that eliminates the need for direct mechanical connection.
2Reliability
If connectors and cabling are used for power and communication, then power and data can be transferred, but electromagnetic interference occurs that causes image artifacts on X-ray images
Solution Approach 1:
The patent replaces wired power and communication transmission with wireless inductive coupling through electromagnetic fields. This substitution eliminates the conductive pathways that generate electromagnetic interference and image artifacts, while still enabling reliable power and data transfer between the imaging system and portable detector.
Solution Approach 2:
The patent utilizes electromagnetic induction, a phenomenon that can potentially cause interference in wired systems, to create a controlled wireless power and communication channel. By using inductive coupling with properly designed transmitter and receiver coils, the system converts potential harmful electromagnetic interference into beneficial wireless power transfer, eliminating image artifacts while maintaining signal transmission.
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 solution provides a robust and reliable power and communication interface, minimizing image artifacts caused by EMI and improving the overall performance of X-ray imaging systems.
Implementation Method 1
the at least one receiver coil and the at least one transmitter coil are inductively coupled to each other when the portable digital X-ray detector is located within the detector receptacle of the X-ray imaging system to transfer a power signal and a communication signal
Implementation Method 2
the at least one first conductive plate that is coupled to a sidewall of the portable digital X-ray detector and the at least one first conductive plate that is coupled to a sidewall of the communication device are capacitively coupled to each other and the at least one second conductive plate that is coupled to a sidewall of the portable digital X-ray detector and the at least one second device conductive plate that is coupled to a sidewall of the communication device are capacitively coupled to each other when the portable digital X-ray detector is located within the detector receptacle of the X-ray imaging system to transfer communication and data
Data Source
AI summary
A system for eliminating image artifacts caused by electromagnetic interference (EMI) on a portable digital x-ray detector that is capable of non-contact wireless inductively coupled power transfer and capacitively coupled communication and data transfer. An X-ray imaging system comprising a portable digital X-ray detector inductively and capacitively coupled to a power source and communication device that is coupled to a detector receptacle of the X-ray imaging system when the portable digital X-ray detector is located within the detector receptacle to transfer power from a power supply of the power source and communication device to the portable digital X-ray detector and transfer communication and data between the power source and communication device and the portable digital X-ray detector.