Rheometer Modular Environmental Control Cartridge
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Solution Overview
Problem
Current rheometer instrumentation faces difficulties in quickly and accurately changing between different environmental controllers, requiring complex mechanical and electrical alignments, which can lead to misalignment and inconsistent rheological data.
Innovation Solution
A rheometer design featuring a removable integrated environmental control cartridge with self-actuating connectors and a kinematic alignment mechanism, allowing for simultaneous alignment and engagement of supply ports, enabling hot-swappable and plug-and-play functionality while maintaining precise mechanical and electrical connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional environmental controllers are changed in current rheometer instrumentation, then different environmental control requirements can be met, but the changing process becomes complex and time-consuming due to required mechanical alignment and electrical/fluid connections
Solution Approach 1:
The environmental control system is divided into separate, interchangeable cartridges that can be independently selected and installed. Each cartridge is a self-contained module with integrated environmental control elements, allowing users to change control types without dealing with complex alignment and connection procedures. The cartridges are designed to fit into a standardized interface on the rheometer chassis.
Solution Approach 2:
The cartridge system incorporates self-aligning mechanical interfaces and self-connecting electrical and fluid ports. When a cartridge is inserted into the chassis, the mechanical alignment features automatically position the cartridge correctly, and the electrical supply ports and fluid circulation ports self-connect without requiring manual intervention for alignment or connection establishment.
2Adaptability or versatility
If multiple environmental controllers are used to meet different sample requirements, then comprehensive testing capability is achieved, but the complexity of mechanical alignment and electrical/fluid connections increases
Solution Approach 1:
A universal chassis interface is designed to accommodate multiple types of environmental control cartridges through a standardized mechanical mounting system. The chassis includes a standardized interface with electrical supply ports and fluid circulation ports that can work with any cartridge type in the family, eliminating the need for different mounting mechanisms for each controller type.
Solution Approach 2:
Multiple connection functions are merged into a single cartridge insertion action. The mechanical alignment features, electrical connections, and fluid circulation connections are all integrated into one unified interface system, so that inserting a single cartridge simultaneously establishes all necessary mechanical, electrical, and fluid connections.
3Measurement precision
If precise mechanical alignment is performed manually for each controller change, then measurement accuracy is maintained, but the time required for configuration changes increases
Solution Approach 1:
The mechanical alignment features are pre-designed and pre-positioned on both the cartridges and the chassis during manufacturing. Alignment pins, locating features, and mechanical interfaces are precisely machined in advance to ensure correct positioning. This preliminary preparation eliminates the need for manual alignment adjustments during field operation.
Solution Approach 2:
Manual mechanical alignment operations are replaced by self-aligning mechanical features such as tapered locators, cam mechanisms, or spring-loaded positioning systems that automatically establish precise alignment when the cartridge is inserted. The alignment function is transformed from a manual adjustment process to an automatic mechanical engagement process.
Data Source
AI summary
A rheometer uses a removable integrated environmental control cartridge that includes at least one environmental control unit, at least one supply port operative to interact with the supply port for a chassis of the rheometer. It also includes at least one mechanical alignment interface that is operative to interact with the mechanical alignment interface of the chassis to align both the mobile part with respect to the fixed part and the chassis supply port with respect to the environmental control cartridge part. In another general aspect, a rheometer can use an environmental control cartridge interface operative to report an identity of the integrated environmental control cartridge to an environmental control cartridge identification interface of its chassis.