Simulated Skin Temperature Control for Electronic Contact Testing
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Solution Overview
Problem
Existing skin simulation devices cannot accurately reproduce the characteristics of skin temperature when an electronic apparatus comes into contact with the skin, limiting their effectiveness in safely and efficiently evaluating the impact of such devices on human skin.
Innovation Solution
A skin simulation device with a sheet-shaped simulated skin member and a subcutaneous unit that includes a temperature detector and adjusting mechanism, allowing for precise control of the temperature under the skin surface, mimicking the thermal conductivity and elasticity of human skin, and a controller to maintain a preset target temperature.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If skin temperature is measured directly on human body, then measurement accuracy is improved, but safety and ethics deteriorate due to risk of low temperature burns and invasive testing
Solution Approach 1:
The patent creates a simulated skin member that copies the thermal characteristics and structure of human skin, including epidermis and dermis layers with appropriate thermal conductivity ratios. This allows temperature measurement on the simulated skin without exposing actual human skin to harmful conditions, while maintaining measurement accuracy through faithful replication of skin's thermal properties.
Solution Approach 2:
The simulated skin member acts as an intermediary between the electronic apparatus and the human body. Temperature detectors measure the temperature on the simulated skin surface and subcutaneous temperature adjusting mechanisms control the temperature conditions, providing accurate data without direct contact between the electronic apparatus and human skin.
2Measurement precision
If electronic apparatus is tested on actual skin, then evaluation accuracy is improved, but device complexity and safety requirements worsen due to need for safety monitoring and ethical approval
Solution Approach 1:
The simulated skin member replicates the thermal characteristics of human skin through carefully designed layered structures with specific thermal conductivity ratios. This copying approach enables accurate evaluation of electronic apparatus thermal impact without the complexity of safety monitoring, ethical approval, and subject recruitment required for actual human testing.
3Productivity
If skin temperature characteristics are reproduced on simulated skin, then safety and efficiency are improved, but manufacturing precision requirements worsen
Solution Approach 1:
The patent focuses on achieving the correct thermal conductivity ratio between epidermis and dermis layers rather than requiring absolute precision in each layer's individual properties. This parameter-based approach (focusing on the ratio) simplifies manufacturing while still achieving accurate skin temperature characteristic reproduction, thereby improving evaluation efficiency without excessive manufacturing complexity.
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 accurate reproduction of skin temperature characteristics, allowing for safe and efficient evaluation of electronic apparatuses without direct human exposure, reducing the risk of low temperature burns and enabling non-invasive testing.
Implementation Method 1
The subcutaneous temperature adjusting mechanism may include a heating section for heating the inner surface
Implementation Method 2
a cooling section for cooling the inner surface
Implementation Method 3
The cooling section may include a water-cooling heat sink within which cooling water circulates
Implementation Method 4
mimicking the thermal conductivity and elasticity of human skin
Data Source
AI summary
To provide a skin simulation device, an electronic apparatus evaluation method, and an electronic apparatus evaluation system that make it possible to reproduce the characteristics of a skin temperature of a human body. The skin simulation device according to an embodiment of the present technology includes a sheet-shaped simulated skin member that includes an outer surface and an inner surface, and a subcutaneous unit that includes a subcutaneous temperature detector and a subcutaneous temperature adjusting mechanism. The subcutaneous temperature detector is capable of detecting a temperature of the inner surface. The subcutaneous temperature adjusting mechanism is capable of adjusting the temperature of the inner surface. This makes it possible to adjust the temperature of the inner surface of the simulated skin member (a subcutaneous temperature), and to reproduce the characteristics of a skin temperature of a human body.