Optical Measurement Device With Split Dark-Box Temperature Control
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Solution Overview
Problem
Existing optical measurement devices struggle to maintain low temperatures within a dark box structure while effectively blocking light, leading to reduced enzyme reaction efficiency and compromised sensitivity and precision in bioluminescence and chemiluminescence detection.
Innovation Solution
The device incorporates a temperature adjustment mechanism with parts inside and outside the dark box, using a Peltier element and heat sinks to maintain low temperatures and block light, ensuring efficient temperature control and light isolation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a temperature adjustment mechanism is placed inside the dark box to maintain low temperature for high sensitivity detection, then detection sensitivity is improved, but heat dissipation from the mechanism increases the temperature inside the dark box, reducing enzyme reaction efficiency
Solution Approach 1:
The temperature adjustment mechanism is divided into two separate parts: a cooling part placed inside the dark box to maintain low temperature for sensitivity, and a heat dissipation part placed outside the dark box to prevent heat from entering the measurement space. This segmentation allows simultaneous achievement of temperature stability and low heat dissipation impact.
Solution Approach 2:
A heat dissipation structure acts as an intermediary between the temperature adjustment mechanism and the dark box interior. This intermediary component conducts heat away from the measurement space through thermal conduction while being positioned outside the light-blocking boundary, thus mediating the thermal management without compromising light isolation.
2Object-affected harmful factors
If the dark box structure is made completely light-tight to block ambient light, then light-blocking efficacy is improved, but heat from external components cannot be effectively dissipated, increasing internal temperature
Solution Approach 1:
The dark box structure is segmented into a light-blocking region and a heat dissipation region. The light-blocking region maintains complete optical isolation for measurement accuracy, while the heat dissipation region positioned outside provides thermal management. This spatial segmentation allows independent optimization of light isolation and heat dissipation functions.
Solution Approach 2:
The heat dissipation function is moved from the internal three-dimensional space to an external dimension outside the dark box. By placing heat dissipation structures in the external environment, the system achieves effective thermal management without compromising the internal light-tight sealing, thus resolving the contradiction through dimensional separation.
3Measurement precision
If the detector is cooled to low temperature to reduce noise and increase sensitivity, then measurement precision is improved, but the cooling mechanism generates heat that raises the detector temperature, reducing cooling effectiveness
Solution Approach 1:
The heat-generating components of the temperature adjustment mechanism are extracted from the detector environment and placed outside the dark box. This extraction removes the heat source from the sensitive measurement space, allowing the detector to be cooled effectively without the counteracting heat generation from the cooling mechanism itself.
Solution Approach 2:
A thermal management intermediary structure is introduced between the cooling mechanism and the detector. This intermediary conducts the necessary cooling to the detector while directing the generated heat away from the detector through a separate thermal pathway that exits the dark box, thus mediating the thermal interaction to achieve net cooling without heat buildup.
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 allows for high-sensitivity and high-precision detection of bioluminescence and chemiluminescence by reducing heat dissipation effects, maintaining a stable low temperature within the dark box and preserving light-blocking efficacy.
Implementation Method 1
actively cooled by a temperature adjustment mechanism including a Peltier element
Implementation Method 2
temperature adjustment mechanism including a Peltier element and heat sinks
Implementation Method 3
influence of ambient light by making a portion holding the measurement device as a light-blocked space
Implementation Method 4
an analyzer that counts the number of photons using a photodetector
Data Source
AI summary
An optical measurement device that suppresses the influence of thermal radiation on sample temperature adjustment mechanisms for adjusting the temperature inside a dark box in which a sample is arranged, to efficiently maintain a low temperature inside the dark box while maintaining a light-blocking effect, and to detect bioluminescence/chemiluminescence of a substance with high sensitivity and high precision. This optical measurement device includes a detector that has a light-receiving unit that receives light generated by a sample tube arranged inside the dark box, and detects the generated light; a temperature adjustment block that is arranged in the periphery of the detector, a portion of the temperature adjustment block being arranged inside the dark box and the other portion thereof being arranged outside the dark box; and the sample temperature adjustment mechanisms that are connected to the portion of the temperature adjustment block arranged outside of the dark box.