Wireless Data Transfer Across Rotating Boundary Using Electromagnetic Coupling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional slip-ring assemblies used for data transfer between rotating components in CT imaging and other applications are prone to dust generation, unreliability, noise, and limited data transfer speed and frequency, which are inadequate for modern radiation imaging modalities requiring faster and more extensive data transmission.
Innovation Solution
A data communication system utilizing electromagnetic coupling between a first data communication component with a magnetic portion and a conductive portion, allowing wireless data transfer between a rotor and a stator, enabling higher data transfer speeds and frequencies by generating or inducing electromagnetic fields corresponding to the data to be transmitted.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional slip-ring assemblies are used for data transfer between rotor and stator, then physical contact enables data transmission, but dust generation, noise, and unreliability occur due to material wear
Solution Approach 1:
The patent replaces the mechanical slip-ring assembly with an electromagnetic coupling system consisting of a primary coil on the stator and a secondary coil on the rotor. This substitution eliminates physical contact between rotating and stationary components, thereby preventing dust generation from material wear while maintaining reliable data transmission through electromagnetic induction.
Solution Approach 2:
The patent introduces an electromagnetic field as an intermediary between the stator and rotor for data transmission. The primary coil generates an electromagnetic field that couples with the secondary coil, allowing data to be transmitted without direct physical contact, thus eliminating the harmful effects of mechanical wear and dust generation.
2Productivity
If conventional slip-ring assemblies are used for data transfer, then data transmission is achieved, but data transfer speed and frequency range are limited
Solution Approach 1:
The patent employs electromagnetic coupling with adjustable frequency and amplitude parameters to achieve high-speed data transmission. By varying the frequency and strength of the electromagnetic field generated by the primary coil, the system can transmit large volumes of data at high speeds while maintaining stable contactless operation across different operating conditions.
3Object-generated harmful factors
If contactless assemblies are used for data transfer, then dust generation and noise are reduced, but data transfer speed and frequency range are limited
Solution Approach 1:
The patent utilizes electromagnetic coupling with variable frequency and amplitude parameters to overcome the limitations of conventional contactless assemblies. By optimizing and adjusting these parameters, the system achieves both low noise operation and high-speed data transmission capabilities, satisfying both requirements simultaneously.
4Productivity
If electromagnetic coupling is used for wireless data transfer, then higher data transfer speeds and frequencies are achieved, but system complexity increases due to magnetic and conductive portions
Solution Approach 1:
The patent designs the electromagnetic coupling system where the primary coil on the stator and secondary coil on the rotor serve multiple functions: generating electromagnetic fields, transmitting data, and enabling bidirectional communication. This multi-functionality reduces the need for separate components, thereby managing system complexity while achieving high data transfer speeds.
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 system effectively transfers large volumes of data at faster speeds and wider ranges of frequencies, overcoming the limitations of traditional slip-ring assemblies and contactless data transfer methods, enhancing the performance of CT imaging and other radiation modalities.
Implementation Method 1
The first magnetic portion and the first conductive portion form an electromagnetic coupling with a second data communication component
Implementation Method 2
The first conductive portion is configured to at least one of generate an electromagnetic field corresponding to data to be transmitted or have induced therein a current based upon a received electromagnetic field
Data Source
AI summary
Among other things, a data communication system wirelessly transmits data between a stator and a movable unit (e.g., a rotor) as part of a computed tomography (CT) imaging modality. The data communication system includes a first magnetic portion including a first magnetic material. The first magnetic portion extends along a first axis. The data communication system includes a first conductive portion including an electrically conductive material. The first conductive portion is at least partially surrounded by the first magnetic portion. The first conductive portion extends along a second axis that is substantially parallel to the first axis. The first conductive portion will at least one of generate an electromagnetic field corresponding to data to be transmitted, or have induced therein a current based upon a received electromagnetic field, where the current is a function of the data to be transmitted.