Optical Measurement Body Module with Movable Plate for Stray Light Sealing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing optical measurement instruments face challenges in creating a tight seal against stray light and thermal radiation while allowing precise adjustment of the distance between optical modules and samples, which affects measurement accuracy.
Innovation Solution
A body module with a movable second plate parallel to a first plate, allowing optical modules to be mounted via fastening interfaces, and a reception device connected to a movable support rail for sample positioning, enabling adjustment of the optical module's distance to the sample without moving the module itself, and using light-impermeable or sliding walls to maintain a tight seal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the optical module is fixed to the measurement chamber, then the sealing against stray light is improved, but the adjustment of distance between optical module and sample becomes difficult
Solution Approach 1:
The measurement chamber is divided into a stationary first plate and a movable second plate. The optical module is fixed to the stationary first plate, maintaining the seal, while the movable second plate carries the sample and can be independently positioned to adjust the distance between the optical module and sample.
Solution Approach 2:
A movable support rail acts as an intermediary mechanism between the fixed optical module and the sample. The support rail enables precise positioning of the sample relative to the optical module without requiring movement of the optical module itself, thus maintaining both sealing and adjustability.
2Measurement precision
If the optical module is made movable to adjust distance, then the measurement precision is improved, but the sealing against stray light deteriorates
Solution Approach 1:
The system separates the optical module (fixed to maintain seal) from the sample holder (movable to enable precise positioning). This segmentation allows the sample to be positioned with high precision relative to the optical module while the measurement chamber maintains its light-tight sealing.
Solution Approach 2:
Instead of moving the optical module within the measurement chamber, the sample is moved in a different dimension (on the movable second plate) to achieve the required distance adjustment. This dimensional separation preserves the sealing while enabling precision adjustment.
3Object-affected harmful factors
If a tight seal is created in the measurement chamber, then the protection against thermal radiation is improved, but the mobility of components deteriorates
Solution Approach 1:
The measurement chamber structure is segmented into stationary and movable parts. The stationary first plate with fixed optical module maintains the thermal radiation seal, while the movable second plate with sample holder provides the necessary mobility for component positioning and adjustment.
Solution Approach 2:
The system transitions from a completely static sealed chamber to a dynamic structure where the second plate can move relative to the first plate. This dynamic design allows the sealed chamber to adapt its internal component positions while maintaining the overall sealing integrity for thermal radiation protection.
Data Source
AI summary
A body module of an optical measurement instrument includes: a reception device (201) for receiving samples, a first plate (202), a second plate (203) substantially parallel with the first plate and movably supported relative to the first plate in a direction perpendicular to the first and second plates, and walls extending from outer edges of the first plate to outer edges of the second plate. The reception device is located in a measurement chamber constituted by the walls and the first and second plates. At least the second plate includes a fastening interface provided with an aperture. The fastening interface is suitable for an optical module to be mounted to the second plate. The measuring chamber provides protection against undesired stray light from surroundings. The movability of the second plate allows adjustment of a distance between a sample and an optical module mounted to the second plate.