Precise Temperature Control for Spectroscopic Detectors
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Summary
Problems
Conventional spectroscopic detectors face challenges in accurately controlling the temperature of light sources due to the slow responsiveness of cooling fans, especially in rapidly changing environmental temperatures, leading to fluctuations in light emission and measurement instability.
Innovation solutions
Incorporating a heater and a cooling fan into the lamp house, with a control device to manage the temperature by adjusting the heater's output based on temperature sensor feedback, allowing for precise temperature control of the light source by combining heating and cooling mechanisms.
TRIZ Analysis
Specific contradictions:
General conflict description:
Principle concept:
If a cooling fan is used to control the temperature of the light source, then the temperature can be maintained, but the responsiveness is slow and a long time is required until the temperature changes
Why choose this principle:
The patent combines both a heater and a cooling fan in the temperature control system. The heater is installed in contact with the lamp house to provide heating capability, while the cooling fan provides cooling capability. This merging of heating and cooling functions enables bidirectional temperature adjustment, significantly improving responsiveness when environmental temperature fluctuates rapidly.
Principle concept:
If a cooling fan is used to control the temperature of the light source, then the temperature can be maintained, but the responsiveness is slow and a long time is required until the temperature changes
Why choose this principle:
The control device dynamically adjusts the output of the heater based on the detected temperature difference between the light source and the set temperature. By changing the heating power parameter in response to temperature conditions, the system achieves faster and more accurate temperature control compared to using only a cooling fan.
Application Domain
Data Source
AI summary:
Incorporating a heater and a cooling fan into the lamp house, with a control device to manage the temperature by adjusting the heater's output based on temperature sensor feedback, allowing for precise temperature control of the light source by combining heating and cooling mechanisms.
Abstract
A spectroscopic detector includes a lamp house, a sample cell, an optical sensor, a heater, a cooling fan, a temperature sensor, and a control device. The heater heats the lamp house while being directly or indirectly in contact with the lamp house containing a light source. The cooling fan is for cooling the lamp house. The temperature sensor is for detecting a temperature of the lamp house. The control device is configured to control operations of the light source, the heater, and the cooling fan. The control device includes a temperature control part configured to maintain a temperature of the lamp house while the light source is lit at a set temperature by controlling at least output of the heater based on a detection signal of the temperature sensor.