Superconducting Coil Relay Switching for Zero-Noise Magnetic Fields
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Solution Overview
Problem
Existing technologies fail to produce zero-noise magnetic fields effectively, which are crucial for high-resolution applications like Scanning Electron Microscopy, as noise interference from atoms and electromagnetic forces degrades signal measurements and imaging quality.
Innovation Solution
A system utilizing a superconducting coil with ever-continuing current, powered by a precision current source and closed using normally closed and normally open superconducting reed relays, ensuring no loss or noise in the magnetic field, achieved through the integration of superconducting materials and reed relays with a cooling mechanism to maintain critical temperatures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional electromagnetic devices are used to generate magnetic fields, then magnetic field production is achieved, but noise is introduced due to atomic vibrations and electromagnetic forces
Solution Approach 1:
The patent changes the fundamental parameter of electrical resistance to zero by using superconducting materials, thereby eliminating the noise generated by atomic vibrations and electromagnetic forces in conventional conductors. This parameter change transforms the magnetic field generation process to achieve zero-noise operation.
Solution Approach 2:
The patent converts the typically harmful effect of electrical resistance and associated thermal noise into a beneficial state by utilizing superconductivity, where resistance becomes zero and noise is eliminated. The superconducting state transforms what was previously a source of degradation into a source of ultra-low noise performance.
2Object-affected harmful factors
If superconducting materials are used to eliminate noise, then zero-noise magnetic field is achieved, but extremely low temperatures are required
Solution Approach 1:
The patent utilizes the phase transition of materials into the superconducting state at extremely low temperatures to achieve zero electrical resistance. This phase transition enables the system to operate in a regime where noise is eliminated, accepting the temperature constraint as a necessary condition for the desired performance.
3Object-affected harmful factors
If ever-continuing current is maintained in superconducting coil, then zero-noise magnetic field is produced, but precise current control is required
Solution Approach 1:
The patent employs superconducting reed relays that utilize the inherent properties of superconducting materials and magnetic field interaction to automatically switch current paths without requiring complex electronic control systems. The relays self-regulate based on magnetic field conditions, simplifying the overall control architecture while maintaining precise current control.
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 generates and maintains a zero-noise magnetic field, enhancing image quality and reducing dependence on electronic driver noise, making it suitable for advanced imaging and research applications, including Scanning Electron Microscopy, while being cost-effective by minimizing noise contributions from voltage drivers.
Implementation Method 1
Superconductors are materials that obtain near perfect electrical conductivity at extremely low temperatures and possess no electrical resistance and electric current can keep flowing without loss typically due to resistance
Implementation Method 2
Superconductors expel the magnetic field from the interior by the passage of electric current at the surface, so the magnetic field created by this flow of current cancels the external magnetic field
Implementation Method 3
A system utilizing a superconducting coil with ever-continuing current, powered by a precision current source and closed using normally closed and normally open superconducting reed relays, ensuring no loss or noise in the magnetic field, achieved through the integration of superconducting materials and reed relays with a cooling mechanism to maintain critical temperatures
Data Source
AI summary
The present invention is a system that produces zero noise magnetic field, which consists of: a coil made of superconducting wire, a precision current source, a Normally Closed Reed (NC) Relay, a Normally Opened (NO) Reed Relay, a cooling mechanism to maintain the superconductor temperature below the critical temperature. The precision current source generates the necessary initial current to act as source for the superconducting coil. The NO reed relay connects the precision current source to the superconductive coil. When this current start to flow, the NC Relay is used to close a superconductive path of the superconductive coil on to itself. Once the system becomes stabilized, the NO reed relay is made open, cutting off the precision source while the Normally Closed relay is closed, thereby a steady value current keeps flowing inside the superconducting coil with zero resistance and zero magnetic noise.