Passive Diffusion Temperature Shock Monitor
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional temperature monitoring techniques for electronics and perishable goods are costly and unreliable due to the need for electrical power and memory, and they often require complex systems to record temperature data, making them burdensome and expensive to manufacture.
Innovation Solution
A temperature shock monitor utilizing atomic diffusion, which measures the exponential dependency of diffusion on temperature and time, allowing for the detection of temperature spikes without the need for a power source, using a solvent material and a diffusion material with a controlled energy barrier to record transient temperature shocks, enabling long-term operation without batteries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional temperature monitoring techniques are used, then temperature data can be recorded, but the system requires electrical power and memory, making it costly and unreliable
Solution Approach 1:
The patent replaces the conventional electronic temperature monitoring system (which requires power, memory, and complex circuitry) with a passive diffusion-based monitoring system. The diffusion material diffuses into the solvent material in response to temperature exposure, creating a permanent physical record of temperature events without requiring electrical power or active electronic components.
Solution Approach 2:
The diffusion-based temperature monitor is self-activating and self-recording. When exposed to temperature above the threshold, the diffusion material automatically diffuses into the solvent material, creating a permanent record of the temperature event. No external power, control logic, or memory writing is required - the physical diffusion process itself performs the monitoring and recording functions.
2Loss of information
If conventional temperature monitors are used, then temperature data can be recorded, but the system becomes complex and expensive to manufacture
Solution Approach 1:
The patent extracts the essential temperature recording function from the complex electronic monitoring system and implements it through a simple passive diffusion structure. By removing the need for power management, memory, processors, and associated electronics, the system achieves temperature data recording with minimal structural complexity - essentially just the diffusion material and solvent material layers.
3Duration of action of stationary object
If conventional temperature monitors are used, then temperature data can be recorded, but the operational life is limited due to battery constraints
Solution Approach 1:
The patent replaces the battery-powered electronic monitoring system with a passive diffusion-based system that has no moving parts, no power consumption, and no limited operational life. The diffusion structure remains stable and functional for extended periods, limited only by the stability of the materials themselves rather than battery degradation or power supply constraints.
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 solution provides a cost-effective and reliable method to detect temperature spikes, allowing for the determination of whether a temperature threshold has been exceeded, with the ability to measure the duration of exposure, using electrical properties affected by diffusion to record and analyze temperature events, thus extending the operational life of monitors.
Implementation Method 1
A temperature shock monitor may include a solvent material and a diffusion material configured to diffuse into the solvent material in response to temperature spikes
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
A temperature shock monitor includes a solvent material and a diffusion material. An energy barrier between the solvent material and the diffusion material is selected to be lower than is would conventionally be used in semiconductor devices such that the diffusion material diffuses into the solvent material when exposed to a temperature above a designated temperature threshold. At a later time, electrical parameters of the temperature shock monitor that change based on the amount of diffusion of the diffusion material into the solvent material allows one to determine whether the temperature shock monitor was exposed to a temperature above the temperature threshold.