Biological Sample Device Partition Wall Thermal Isolation
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Solution Overview
Problem
Conventional biological sample measuring devices suffer from low measurement accuracy due to the temperature sensor detecting a higher ambient temperature influenced by the elevated temperature of the control board, leading to incorrect correction of blood glucose levels.
Innovation Solution
The device incorporates a partition wall with thermally insulating space between the control board housing chamber and the measurement board housing chamber, isolating heat from the control board and preventing its transfer to the measurement board, allowing the temperature sensor to accurately detect ambient temperature.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the temperature sensor is disposed near the measurement board to correct temperature dependence characteristics, then the temperature correction function is improved, but the measurement accuracy deteriorates because the control board's elevated temperature adversely affects the temperature sensor reading
Solution Approach 1:
The device is divided into two functionally independent sections: a control board section housing the control board and power supply, and a measurement board section housing the measurement board and temperature sensor. This segmentation physically separates the heat-generating components from the temperature-sensitive components, allowing the temperature sensor to accurately detect only the ambient temperature near the biosensor without interference from control board heat.
Solution Approach 2:
A partition wall with thermally insulating space is introduced as an intermediary structure between the control board and measurement board. This partition wall acts as a thermal barrier that blocks heat transfer from the control board to the measurement board, thereby protecting the temperature sensor from thermal interference while maintaining structural integrity and functional separation.
2Device complexity
If the control board and measurement board are integrated in a single housing without separation, then the device complexity is reduced, but the temperature sensor detects inaccurate temperature due to heat from the control board
Solution Approach 1:
The single housing is segmented into distinct control board housing chamber and measurement board housing chamber using a partition wall. This segmentation maintains the simplicity of a single housing structure while creating internal thermal isolation zones that prevent heat interference, thus achieving both structural simplicity and measurement accuracy.
Solution Approach 2:
The partition wall is strategically positioned to provide thermal insulation specifically at the location where temperature measurement occurs. The thermally insulating space is created locally around the measurement board and temperature sensor, ensuring that only the relevant ambient temperature is detected while other parts of the device can maintain their functional design.
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
This configuration enhances measurement accuracy by ensuring the temperature sensor detects ambient temperature near the biosensor, providing a more accurate correction for blood glucose levels.
Implementation Method 1
a partition wall with thermally insulating space between the control board housing chamber and the measurement board housing chamber
Data Source
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AI summary
With this device for measuring a biological sample, a partition wall (14) is provided between a display section (2) and a sensor mount (5) inside a main case (1). A control board housing chamber (15) is disposed on the display unit (2) side of the partition wall (14), and a measurement board housing chamber (16) is disposed on the sensor mount (5) side of the partition wall (14). A control board (6) is housed in the control board housing chamber (15), and a measurement board (7) and a temperature sensor (13) are housed in the measurement board housing chamber (16).