Gas Analyzer Probe Window Isolates Measurement Area
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Solution Overview
Problem
Conventional gas analyzers face leakage issues when the analytical member is detached from the probe member, leading to potential leaks of analyte gas in the flow path.
Innovation Solution
A gas analyzer design featuring a probe member with a window portion that isolates the measurement area from the outside and transmits measurement light, along with a detachable analytical member and calibration member, which allows for secure gas analysis and calibration without interrupting the measurement process, even when the analytical member is removed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the analytical member is detachably attached to the probe member, then the calibration member can be detachably attached to the analytical member for calibration, but the analyte gas may leak through the inside of the probe member to the outside when the analytical member is detached
Solution Approach 1:
The device is divided into separate functional modules: probe member, analytical member, and calibration member, each with specific connection portions that enable selective attachment and detachment while maintaining gas tightness through integrated sealing structures
Solution Approach 2:
A sealing structure acts as an intermediary element between the connection portions, preventing gas leakage while allowing the detachable connection functionality. The sealing structure ensures gas tightness during both attached and detached states
2Reliability
If the analytical member is permanently fixed to the probe member, then gas leakage is prevented, but the calibration member cannot be detachably attached for calibration
Solution Approach 1:
The connection between members transitions from static/permanent to dynamic/detachable, with the sealing structure adapting its function to maintain gas tightness in both attached and detached states, enabling both permanent sealing and temporary calibration access
Solution Approach 2:
The connection portions and sealing structures are designed to serve multiple functions: maintaining gas tightness during measurement and enabling calibration access during calibration, eliminating the need for separate permanent fixation and calibration mechanisms
3Adaptability or versatility
If the analytical member is detached from the probe member for calibration, then calibration can be performed, but the measurement process is interrupted
Solution Approach 1:
The calibration member acts as an intermediary that interfaces with the analytical member's connection portion, enabling calibration operations without requiring detachment from the probe member, thus maintaining measurement continuity
Solution Approach 2:
The calibration member is designed to attach to the analytical member which remains attached to the probe member, creating a nested configuration where calibration can occur in-situ without interrupting the measurement process
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
Prevents analyte gas leakage during detachment of the analytical member and enables calibration without removing connected pipes and wires, reducing the risk of gas exposure and improving operational safety and efficiency.
Implementation Method 1
The probe member has a window portion isolating the measurement area from outside of the base end side and transmitting the measurement light
Implementation Method 2
the reflection portion reflects the measurement light incident on the measurement area
Data Source
AI summary
A gas analyzer has a probe member attachable to a flow path wall of a flow path through which an analyte gas flows and an analytical member having a second connection portion detachably attached to a first connection portion located at a base end. The probe member has a reflective portion and a measurement area defined therein for introducing the analyte gas. The analytical member has a light emission portion and a light reception portion. The light emission portion irradiates measurement light toward the measurement area, the reflection portion reflects the measurement light incident on the measurement area, and the light reception portion receives the measurement light reflected by the reflection portion. The probe member has a window portion isolating the measurement area from outside of the base end side and transmitting the measurement light.