Gas Detector Dust Blocking Element for Sensor Protection
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Solution Overview
Problem
Conventional gas detecting devices suffer from reduced accuracy due to dust and particulate matter pollution, leading to increased costs as the entire device often needs to be replaced when pollution occurs, especially in high-pollution environments.
Innovation Solution
A gas detecting device with a detachable dust blocking element featuring a light-permeable cover that overlaps with the sensor, preventing pollution and allowing for easy replacement when necessary, enhancing the device's service life and measurement accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the gas detecting device is used to measure particulate matter, then the device can detect gas characteristics, but the light sensing element gets polluted by dust and particulate matter leading to decreased accuracy
Solution Approach 1:
The device is divided into functional modules: a sensing component with light sensing element, a dust blocking element with filtering structure, and a gas passage system. This segmentation allows the dust blocking element to be specifically positioned to protect the light sensing element while maintaining detection functionality.
Solution Approach 2:
A dust blocking element is introduced as an intermediary component between the external environment and the light sensing element. This element includes a dust blocking component with filtering structure that intercepts dust and particulate matter before they can reach and pollute the light sensing element.
2Adaptability or versatility
If the gas detecting device is used in highly polluted environments, then it can operate in such conditions, but it gets immediately polluted affecting accuracy
Solution Approach 1:
The dust blocking element is pre-configured with a filtering structure that proactively captures dust and particulate matter before they can reach the light sensing element. This preliminary protective action prevents pollution from occurring in the first place, maintaining detection accuracy in polluted environments.
Solution Approach 2:
The dust blocking element acts as a protective barrier that cushions the light sensing element against the harmful effects of polluted environments. By placing this protective layer beforehand, the system prepares for potential pollution exposure and prevents damage to the sensitive sensing component.
3Reliability
If the gas detecting device becomes polluted, then it needs to be replaced, but this causes cost to increase
Solution Approach 1:
The dust blocking element is designed as a separate, extractable component that can be removed and replaced independently from the main gas detecting device. When the dust blocking element becomes polluted, only this specific component needs to be taken out and replaced, rather than replacing the entire expensive device.
Solution Approach 2:
The dust blocking element is designed as a consumable component that can be discarded when polluted and replaced with a new one. This allows the main sensing components to be recovered and reused, reducing overall replacement costs and extending the service life of the core detection system.
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 significantly enhances the service life and measurement accuracy of the gas detecting device by preventing dust and particulate matter from polluting the sensor, reducing the need for frequent replacements and lowering operational costs.
Implementation Method 1
the sensing component includes a substrate, a sensor disposed on the substrate, and a laser light source electrically connected to the substrate. The sensor and the laser light source are respectively disposed corresponding to the detecting area.
Implementation Method 2
The cover is light permeable, and the cover is disposed corresponding to the detecting area. A vertical projection of the cover on the substrate and a vertical projection of the sensor on the substrate at least partially overlap with each other.
Data Source
AI summary
A gas detecting device is provided to detect characteristics of a gas under test. The gas detecting device includes a shell component, a sensing component, and a dust blocking element. The shell component includes a gas passage and a groove. The gas under test passes through a detecting area on a path of the gas passage along the gas passage. The sensing component is disposed inside the shell component. The sensing component includes a substrate, a sensor, and a laser light source. The sensor and the laser light source are respectively disposed corresponding to the detecting area. The dust blocking element is detachably disposed in the groove of the shell component. The dust blocking element includes a base and a cover. The cover is light permeable.