Thermal Analyzer Sample Container With Pressure Plate for Stable Observation
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Solution Overview
Problem
Existing thermal analyzers face challenges in observing samples due to thermal deformation and reflection issues, particularly in open-type containers, which cannot uniformly press samples and maintain stable observation.
Innovation Solution
A sample container with a transparent or translucent pressure plate and a lid that presses the sample, supplemented by a pressing mechanism, ensures uniform pressing and minimizes deformation, allowing stable observation through a transparent lid.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If an open-type sample container is used for observation, then the sample can be observed through the opening, but thermal deformation and reflection occur making stable observation difficult
Solution Approach 1:
The container is divided into a body and a separate lid, where the lid can be independently positioned to press down on the sample. This segmentation allows the lid to function as a pressing mechanism while maintaining the open structure for observation, resolving the contradiction between observability and observation stability.
Solution Approach 2:
The lid acts as an intermediary element between the observer and the sample. By pressing down on the sample through the lid, the sample surface is flattened and stabilized, reducing thermal deformation and reflection effects that would otherwise interfere with stable observation.
2Stability of the object's composition
If a pressure plate is used to press the sample, then thermal deformation is reduced, but the pressure plate folds or the sample contracts under excessive deformation force
Solution Approach 1:
The lid is designed to be movable rather than fixed, allowing it to dynamically adjust its position and pressing force. This dynamic capability enables the lid to press down on the sample sufficiently to stabilize it, while automatically reducing pressure when the sample deforms excessively, preventing the harmful effects of excessive deformation force.
3Illumination intensity
If the lid is made transparent for observation, then sample visibility is improved, but the lid cannot provide sufficient pressing force
Solution Approach 1:
The lid's pressing force is enhanced by changing the geometric parameters of the container body, specifically by forming inclined surfaces at the inner walls that face the lid. These inclined surfaces convert the lid's downward motion into enhanced pressing force through mechanical advantage, allowing transparent lids to provide sufficient pressing force for sample stabilization.
Data Source
AI summary
A sample container and a thermal analyzer that enable stable observation of measurement samples in thermal analysis are proposed. The sample container is a sample container used with a thermal analyzer for measurement of thermal behavior according to a temperature variation from heating or cooling of a measurement sample and observes the measurement sample. The sample container includes a body in a cylindrical shape having a bottom and an open top, a transparent or translucent pressure plate accommodated in the body to press the measurement sample placed on a bottom surface of the body from a top, and a lid accommodated in the body, placed on top of the pressure plate, and having a hole for observing the measurement sample.