Diamond Magneto-Optical Sensor Impedance Conversion for Low-Power Operation
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Solution Overview
Problem
Existing diamond magneto-optical sensors require high-power microwaves for magnetic resonance, which can lead to temperature increases and electrical breakdown, making them unsuitable for high-voltage environments and necessitating power-saving, compact designs.
Innovation Solution
The diamond magneto-optical sensor incorporates an impedance converter or resonator in its transmission circuit to reduce or increase the impedance of electromagnetic waves, allowing operation with low-power microwaves, using transformers and λ/4 stubs to enhance magnetic field strength and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If high-power microwaves are used for magnetic resonance in diamond magneto-optical sensors, then magnetic resonance can be achieved, but temperature increases and electrical breakdown occur
Solution Approach 1:
The patent changes the electrical parameters (impedance) of the transmission circuit to optimize power transmission efficiency. By adjusting impedance values and using impedance conversion techniques, the system achieves effective magnetic resonance with reduced microwave power, thereby preventing temperature increase and electrical breakdown while maintaining the magnetic resonance function.
2Power
If high-power microwaves are used for magnetic resonance, then magnetic resonance can be achieved, but electrical breakdown occurs in high-voltage environments
Solution Approach 1:
The patent modifies electrical parameters including impedance transformation and resonance frequency optimization to reduce the power level required for magnetic resonance. This parameter optimization enables the sensor to operate reliably in high-voltage environments by maintaining electrical insulation while achieving the necessary magnetic resonance effect for sensing operations.
3Device complexity
If conventional transmission circuits are used, then simple structure is maintained, but high power consumption occurs
Solution Approach 1:
The patent optimizes transmission circuit parameters including impedance values, component selection, and resonance characteristics to minimize power consumption. By carefully adjusting these parameters, the system achieves efficient power transmission for magnetic resonance with reduced energy loss, thereby lowering overall power consumption while maintaining a relatively simple circuit structure.
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 sensor operates effectively with lower microwave power, maintaining magnetic resonance while ensuring electrical insulation and reducing power consumption, suitable for high-voltage applications.
Implementation Method 1
The NV center excited at a wavelength 532 nm (that is, green light) emits fluorescence at a wavelength 637 nm (that is, red light). The radiant intensity of fluorescence changes according to a spin state.
Implementation Method 2
The spin state is changed by magnetic resonance occurring due to a magnetic field applied to the NV center and microwaves or radio waves
Implementation Method 3
the transmission circuit includes an impedance converter that reduces or increases, with respect to the irradiation unit, the impedance of an electromagnetic source for outputting electromagnetic waves
Implementation Method 4
the transmission circuit includes a resonator
Data Source
AI summary
A diamond magneto-optical sensor includes: a diamond including a color center with an electronic spin, a transmission circuit that transmits electromagnetic waves, and an irradiation unit that irradiates the diamond with electromagnetic waves transmitted by the transmission circuit, wherein the transmission circuit includes an impedance converter that reduces or increases, with respect to the irradiation unit, the impedance of an electromagnetic source for outputting electromagnetic waves.