Odor Detection Chamber with Temperature and Humidity Control
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Solution Overview
Problem
Existing odor detection technologies, such as electrochemical and bio-peptide type sensors, suffer from low accuracy and sensitivity to temperature and humidity, leading to measurement errors.
Innovation Solution
A system comprising a chamber assembly with controlled temperature and humidity management, a controller for regulating environmental conditions, and a sensor device for precise odor detection, utilizing a heating device, pump, and circulation flow path to stabilize gas conditions before detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If electrochemical sensors are used for odor detection, then the device can detect odor, but the accuracy is low and durability is short
Solution Approach 1:
The patent introduces a chamber as an intermediary component between the target gas and the sensor. The chamber controls temperature and humidity conditions, acting as a mediator that prepares the gas environment before it reaches the sensor, thereby improving measurement accuracy without affecting sensor durability
Solution Approach 2:
The patent changes the environmental parameters (temperature and humidity) within the chamber to optimal levels for odor detection. By controlling these parameters, the system achieves higher measurement precision while protecting the sensor from harsh environmental conditions
2Measurement precision
If bio-peptide type sensors or amino acid sensors are used, then the sensors react precisely to odor molecules, but they are sensitive to temperature and humidity causing measurement errors
Solution Approach 1:
The chamber serves as an intermediary that decouples the sensor from direct exposure to variable environmental conditions. It maintains stable temperature and humidity internally while allowing odor molecules to pass through, protecting the sensitive sensor from harmful environmental factors
Solution Approach 2:
The system actively controls and changes the temperature and humidity parameters within the chamber to optimal fixed values. This eliminates the sensitivity issue by ensuring the sensor always operates under controlled conditions while maintaining high reactivity to odor molecules
3Device complexity
If temperature and humidity are not controlled, then the system is simpler, but measurement accuracy decreases due to environmental sensitivity
Solution Approach 1:
The system is segmented into distinct functional modules: the chamber for environmental control, the sensor for odor detection, and the controller for parameter management. This segmentation allows temperature and humidity control to be added without complicating the overall system architecture, as each module has a specific function
Solution Approach 2:
The chamber serves multiple functions simultaneously: it contains the sensor, controls temperature, controls humidity, and directs gas flow. This multi-functionality reduces the need for separate components, thereby limiting the increase in device complexity while achieving accurate measurements
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 system achieves accurate and stable odor detection by maintaining optimal temperature and humidity levels and flow rates, enhancing the precision and reliability of odor sensing.
Implementation Method 1
a heating device configured to be coupled to the inlet to increase the temperature of gas in the inlet
Implementation Method 2
a sensor device configured to detect odor of the controlled target gas within the chamber
Data Source
Figure 1
Figure 2A
Figure 2B
AI summary
An embodiment odor detection system includes a chamber assembly including a chamber, a controller configured to control a temperature and a humidity of a target gas and inflow the target gas into the chamber, and a sensor configured to detect an odor of the target gas within the chamber.