Superconducting Quantum Bit Temperature Sensor
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Solution Overview
Problem
Current temperature measurement techniques face challenges in achieving high accuracy and small size, particularly at sub-micrometer scales, due to limitations in spatial resolution and thermal influence on measuring objects, especially when measuring objects with nano-devices.
Innovation Solution
A temperature measuring device utilizing a spin group of particles with spins and a superconducting quantum bit to detect magnetization, combined with a magnetic field application unit and a measuring unit to measure energy changes, allowing for precise temperature measurement in close proximity to the object.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the thermometer is made small, then the spatial resolution is improved, but the measurement accuracy is deteriorated
Solution Approach 1:
The patent changes the physical parameter used for measurement from electrical resistance (conventional) to magnetization (superconducting quantum interference), enabling high accuracy with small size. The superconducting quantum interference element detects temperature through magnetization changes of paramagnetic material, achieving both small size and high precision simultaneously.
Solution Approach 2:
The patent replaces the conventional resistance thermometer mechanism with a superconducting quantum interference-based magnetization detection system. This substitution enables temperature measurement at the nanoscale by detecting magnetic properties rather than electrical resistance, resolving the size-accuracy tradeoff.
2Measurement precision
If the amount of substance is increased, then the measurement accuracy is improved, but the spatial resolution is deteriorated
Solution Approach 1:
The patent changes from measuring electrical resistance (which requires substantial material) to measuring magnetization through superconducting quantum interference. This parameter change enables accurate temperature measurement with minimal material presence, maintaining both high accuracy and high spatial resolution.
3Object-affected harmful factors
If the thermometer is made small, then the thermal influence on measuring object is reduced, but the measurement accuracy is deteriorated
Solution Approach 1:
The patent replaces resistance-based measurement with superconducting quantum interference-based magnetization measurement. This substitution enables the thermometer to be made extremely small, reducing thermal influence on the measuring object while maintaining high measurement accuracy through the quantum interference effect.
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
Enables high-accuracy temperature measurement on a sub-micrometer scale with a small temperature measuring device, minimizing thermal influence and achieving rapid response, thereby overcoming the limitations of existing techniques.
Implementation Method 1
a superconducting quantum bit which detects magnetization of the spin group
Implementation Method 2
a magnetic field application unit which applies a magnetic field to the spin group in a direction horizontal to the superconducting quantum bit
Implementation Method 3
a measuring unit which measures energy of the superconducting quantum bit
Data Source
AI summary
A temperature measuring device includes a spin group made up of a group a plurality of particles having spins, and a superconducting quantum bit which detects magnetization of the spin group. The spin group is disposed at an asymmetric position on the superconducting quantum bit. The temperature measuring device also includes a magnetic field application unit which applies a magnetic field to the spin group in a direction horizontal to the superconducting quantum bit, and a measuring unit which measures energy of the superconducting quantum bit.