Gas Chromatograph Sampler Positioning
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Solution Overview
Problem
In gas chromatography analysis systems, changing the position of an injector on the gas chromatograph main body requires repeated teaching of the sampler, increasing user workload due to a change in the relative positional relationship between the injector and the sampler.
Innovation Solution
The sampler is positioned according to the injector's position on the gas chromatograph main body, maintaining a constant relative positional relationship, eliminating the need for re-teaching when the injector's position is changed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the position of the injector on the gas chromatograph main body is changed, then different analysis units can be used, but teaching of the sampler must be executed again increasing user workload
Solution Approach 1:
The sampler is pre-positioned at a location that corresponds to the position of the injector on the gas chromatograph main body. This preliminary positioning establishes the relative positional relationship between the sampler and injector before the injector is moved to a different analysis unit, eliminating the need for re-teaching when switching between analysis units.
Solution Approach 2:
The gas chromatograph main body serves as an intermediary structure that provides a fixed reference frame. By positioning the sampler relative to the main body rather than directly relative to the movable injector, the system decouples the sampler's position from injector movements, allowing injector repositioning without affecting sampler-teaching requirements.
2Ease of operation
If the sampler is positioned independently of the injector position, then teaching is required every time the injector position changes, but if the sampler is engaged with the injector or gas chromatograph main body, the relative positional relationship remains constant
Solution Approach 1:
The sampler is engaged with either the injector or the gas chromatograph main body, merging their positional relationships. This engagement ensures that when the injector moves to a different position, the sampler moves accordingly or maintains its relative position, preserving the teaching information without requiring re-teaching.
Solution Approach 2:
The engagement mechanism provides multi-functionality by serving both as a positioning reference and as a mechanical coupling. This allows the sampler to automatically adapt to different injector positions while maintaining a constant relative positional relationship, eliminating the need for repeated teaching operations.
Data Source
AI summary
A gas chromatograph main body (2) comprising an upper surface on which a plurality of injection ports are provided, an injector (4A) arranged on the gas chromatograph main body (2), for corresponding to an injection port (10-1 to 10-4) optionally selected from a plurality of the injection ports (10-1 to 10-4), and being configured to inject a sample through the corresponding injection port (10-1 to 10-4), and a sampler (6) for supplying a vial containing liquid to the injector (4A). The sampler (6) is arranged at a position determined according to a position of the injector (4A) on the gas chromatograph main body (2) so as to have a specific positional relationship with the injector (4A). The sampler is engaged with the gas chromatograph main body (2) or the injector (4A).