Particle-in-Medium Temperature Sensing for Harsh Environments
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Solution Overview
Problem
Existing temperature sensors, such as diode and silicon bandgap sensors, are limited by their semiconductor fabrication processes, making them unsuitable for harsh environments and lacking flexibility in temperature detection capabilities.
Innovation Solution
A system utilizing magnetically sensitive and/or electrically conductive particles within a medium material that changes state in response to temperature, enabling temperature detection through particle movement, which can be wirelessly transmitted and integrated with measurement circuits and antennas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If semiconductor fabrication processes are used to manufacture temperature sensors, then manufacturing precision and reliability are improved, but device complexity and manufacturing cost increase, and applicability in harsh environments is limited
Solution Approach 1:
The temperature sensing function is segmented from the electronic circuitry. The patent uses discrete particles embedded in a medium material that can be manufactured separately from the electronics, then integrated into the final device. This segmentation allows the sensing element to be optimized for harsh environments while the electronics can be optimized for processing, resolving the contradiction between reliability in harsh conditions and manufacturing complexity.
Solution Approach 2:
The patent introduces an intermediary medium material that contains the temperature-sensitive particles. This medium acts as a bridge between the particles and the external environment, protecting the particles while allowing temperature detection. The intermediary structure enables reliable temperature sensing in harsh environments without requiring complex semiconductor fabrication processes.
2Manufacturing precision
If conventional silicon temperature sensors are used, then manufacturing precision is improved, but adaptability to harsh environments and operating temperature range are worsened
Solution Approach 1:
The patent changes the fundamental parameters of the sensing element by using particles with different material properties than conventional silicon sensors. The particles can be made from materials that maintain stability at extreme temperatures and in harsh chemical environments, while still providing detectable changes in response to temperature variations. This parameter change enables both manufacturing precision and environmental adaptability.
Solution Approach 2:
The patent employs composite materials consisting of temperature-sensitive particles embedded in a stable medium material. This composite structure combines the temperature sensitivity of the particles with the environmental stability of the medium, achieving both manufacturing precision and adaptability to harsh environments including extreme temperatures, moisture, and chemical exposure.
3Ease of manufacture
If particles are used in medium material for temperature detection, then ease of manufacture and environmental adaptability are improved, but measurement precision may be affected by particle mobility variations
Solution Approach 1:
The patent incorporates feedback mechanisms that monitor particle mobility and compensate for variations in temperature measurements. By detecting changes in particle movement characteristics and using this information to校正 measurement readings, the system maintains high measurement precision despite variations in particle mobility caused by changes in medium viscosity or other environmental factors.
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 reliable temperature detection in harsh environments and flexible temperature monitoring across various phases and viscosities, allowing for efficient temperature sensing in applications like cold chains and pharmaceutical monitoring.
Implementation Method 1
The movement of the particles can be in response to a magnetic field
Implementation Method 2
The medium material can be a solid in a first state and a fluid in the second state. The enclosure can change from the first state to the second state in response to the change in temperature
Data Source
AI summary
Aspects of this disclosure relate to detecting temperature based on movement of one or more particles within a container. The container includes a medium material. Mobility of the one or more particles in the medium material changes in response to a change in temperature.