Compact Gas Detector With Partitioned Sensor And Actuator
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Solution Overview
Problem
Existing portable gas detecting devices face challenges in maintaining high performance while being slim and portable, as heat generated by actuators can interfere with sensors, affecting monitoring accuracy and reliability.
Innovation Solution
A slim and portable gas detecting device design with a compartmentalized gas sensing module where the actuator and sensor are separated by a partition plate, preventing heat interference, and includes a particulate measuring module for accurate air quality monitoring and immediate alerting capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the actuator and sensor are integrated in the same gas detecting module, then the device structure is compact and slim, but the heat generated by the actuator interferes with the sensor and affects monitoring accuracy
Solution Approach 1:
The gas detecting module is divided into separate compartments: a first compartment housing the sensor and a second compartment housing the actuator. This segmentation physically isolates the heat-generating actuator from the sensitive sensor, eliminating thermal interference while maintaining a compact overall structure. The partition wall between compartments ensures thermal isolation.
Solution Approach 2:
A partition wall with a gas passage acts as an intermediary structure between the actuator compartment and sensor compartment. This intermediary allows gas to flow from the actuator to the sensor while simultaneously providing thermal isolation, thus mediating between the need for compact integration and the need for thermal separation to maintain measurement precision.
2Length of moving object
If the actuator is placed close to the sensor for compact design, then the device is more portable, but the heat from the actuator adversely affects the sensor monitoring accuracy
Solution Approach 1:
The device is segmented into distinct functional zones separated by partition walls. The sensor resides in a first compartment while the actuator is placed in a second compartment, with the partition wall providing thermal isolation. This segmentation enables close proximity for portability while blocking harmful thermal effects.
Solution Approach 2:
The partition wall structure provides localized thermal isolation properties at the interface between compartments. By designing the partition wall with appropriate thickness and material properties, thermal isolation is achieved locally at the critical interface, allowing the overall device to remain thin while protecting the sensor from actuator heat.
3Device complexity
If multiple components (actuator, sensor, control module) are integrated in a compact housing, then the device is portable and slim, but heat from the actuator and other components affects sensor accuracy
Solution Approach 1:
The device employs multi-compartment segmentation where the sensor is isolated in a dedicated first compartment, the actuator is separated into a second compartment, and the control module is placed in a third compartment. This segmentation strategy maintains high component integration for portability while ensuring thermal isolation of the sensor from all heat-generating components.
Solution Approach 2:
Partition walls with controlled gas passages act as intermediary structures between different functional compartments. These intermediaries enable gas flow connectivity while providing thermal isolation, allowing multiple components to be integrated in a compact housing without thermal interference affecting sensor accuracy.
Data Source
Figure 1A
Figure 1B
Figure 1C~1D
AI summary
A gas detecting device includes a main body (1), a gas sensing module (2), a particulate measuring module (3) and a control module (4). A chamber (11) is formed within the main body (1). The main body (1) has a first inlet (12), a second inlet (13) and an outlet (14) in fluid communication with the chamber (11). The gas sensing module (2) includes a compartment body (21), a carrying plate (22), a sensor (23) and an actuator (24). The actuator (24) introduces ambient gas into the gas sensing module (2) through the first inlet (12), and the gas is measured by the sensor (23) and discharged from the outlet (14) of the compartment body (21). The particulate measuring module (3) is disposed within the chamber (11) of the main body (1) and includes an inlet channel (31), an outlet channel (32) and a particulate detector. The gas is introduced into the particulate measuring module (3) through the inlet channel (31), and a concentration of particulates in the gas is measured by the particulate detector.