Flux Transformer Layout for ODMR Magnetic Field Sensing
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Solution Overview
Problem
Existing magnetic measurement apparatuses face difficulties in effectively applying a magnetic field corresponding to a measurement target to a magnetic resonance member due to the geometrical configuration of components like flux transformers, which obstruct the application of laser light, microwave, and static magnetic fields.
Innovation Solution
A magnetic field measurement apparatus and method that includes a magnetic resonance member, a high-frequency magnetic field generator, a magnet, and a flux transformer, where the magnetic resonance member is arranged between the end surfaces of light guide members and within the hollow parts of the secondary coil and magnet, allowing for easy alignment and securing space for laser light irradiation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a flux transformer is used to apply magnetic field to magnetic resonance member, then magnetic field application effectiveness is improved, but the secondary coil obstructs the application of laser light, microwave, and static magnetic field
Solution Approach 1:
The magnetic resonance member is positioned within the hollow interior space of the secondary coil, allowing the secondary coil to apply magnetic field effectively while the hollow space accommodates the magnetic resonance member and allows passage of laser light, microwave, and static magnetic field without obstruction
2Reliability
If secondary coil is arranged to apply magnetic field, then magnetic field application is improved, but space for laser light irradiation becomes difficult to secure
Solution Approach 1:
The hollow interior space of the secondary coil is utilized to position the magnetic resonance member, creating a nested configuration where the laser light irradiation space is located within the coil's hollow region, thus securing adequate space for laser light irradiation while maintaining effective magnetic field application
3Reliability
If components are arranged around magnetic resonance member, then magnetic field application is improved, but geometrical configuration becomes complex
Solution Approach 1:
The magnetic resonance member is nested within the hollow interior of the secondary coil, creating a simplified concentric geometrical configuration that reduces complexity compared to arranging components around the magnetic resonance member, while still achieving effective magnetic field application
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 apparatus effectively applies a magnetic field to the magnetic resonance member using a flux transformer, facilitating easy arrangement of components relative to the magnetic flux direction and ensuring space for laser light irradiation.
Implementation Method 1
a flux transformer that senses a measurement target magnetic field using a primary coil and applies an application magnetic field corresponding to the sensed measurement target magnetic field to the magnetic resonance member using a secondary coil
Implementation Method 2
a magnetic resonance member capable of an electron spin quantum operation using microwave
Implementation Method 3
a magnet that applies a static magnetic field to the magnetic resonance member
Implementation Method 4
a light intensity is detected of fluorescence emitted from the magnetic resonance member and a magnetic flux density is derived on the basis of the light intensity
Data Source
AI summary
A high-frequency magnetic field generator 2 applies microwave to a magnetic resonance member 1. A magnet 3 applies a static magnetic field to the magnetic resonance member 1. An irradiating device 12 irradiates the magnetic resonance member 1 with incident light of a specific wavelength. An FT 4 senses a measurement target magnetic field using a primary coil 4a and applies an application magnetic field corresponding to the sensed measurement target magnetic field to the magnetic resonance member 1 using a secondary coil 4b. A pillar-shaped light guide member 41 guides the incident light to the magnetic resonance member 1, and a pillar-shaped light guide member 42 guides fluorescence that the magnetic resonance member 1 emits from the magnetic resonance member 1. Further, the magnetic resonance member 1 is arranged between an end surface of the light guide member 41 and an end surface of the light guide member 42 in a hollow part of the secondary coil 4b of the FT 4 and in a hollow part of the aforementioned magnet 3.