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Sensor optical path assembly, gas sensor and measurement method, and air conditioning system

A technology of gas sensor and measurement method, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of fixed optical path length and inability to better adapt to numerical measurement, and achieve the effect of variable propagation path length

Active Publication Date: 2022-03-08
GREE ELECTRIC APPLIANCES INC
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AI Technical Summary

Problems solved by technology

[0003] The optical path length of the existing NDIR carbon dioxide sensor gas chamber is fixed, which cannot be well adapted to the numerical measurement under different concentrations

Method used

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  • Sensor optical path assembly, gas sensor and measurement method, and air conditioning system
  • Sensor optical path assembly, gas sensor and measurement method, and air conditioning system

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Embodiment Construction

[0030] see in conjunction Figure 1 to Figure 2 As shown, according to an embodiment of the present application, a sensor optical path assembly includes:

[0031] The fixed seat 1 and the slider 2, the slider 2 and the fixed seat 1 are provided with reflective surfaces, the two reflective surfaces are parallel and inclined; the slider 2 can be moved along the fixed seat 1 moving in said parallel direction;

[0032] A light source 3 and a detector 4, the light emitted by the light source 3 reaches the detector 4 after being reflected by the two reflective surfaces; the light source 3 is arranged on the fixed seat 1, and the detector 4 is arranged on the On the slider 2 ; or the light source 3 is arranged on the slider 2 , and the detector 4 is arranged on the fixing seat 1 .

[0033] Both the fixed base 1 and the slider 2 can move relative to each other along the parallel direction, and the light source 3 and the detector 4 are separately arranged on the fixed base 1 and the ...

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Abstract

The application provides a sensor optical path assembly, a gas sensor, a measurement method and an air conditioning system. The optical path assembly of the sensor includes a fixed base and a slider, the slider and the fixed base are provided with reflective surfaces, and the two reflective surfaces are parallel and inclined; the slider can be moved along the fixed base relative to the fixed base The light source and the detector, the light emitted by the light source reaches the detector after being reflected by the two reflective surfaces; the light source is arranged on the fixed seat, and the detector is arranged on the on the slider; or the light source is arranged on the slider, and the detector is arranged on the fixing seat. Through the movement of the slider, the number of reflections of the light can be changed, so that the propagation path length of the light path can be changed.

Description

technical field [0001] The application belongs to the technical field of air conditioning systems, and in particular relates to a sensor optical path assembly, a gas sensor, a measurement method, and an air conditioning system. Background technique [0002] With the improvement of people's living standards, the attention to the air quality in the environment is also increasing. In order to meet the monitoring of air quality, environmental sensors such as air quality sensors (CO 2 , PM2.5) and other market demands are increasing. Carbon dioxide concentration is one of the important indicators to measure air quality. There are already various sensors for detecting carbon dioxide concentration on the market. Carbon dioxide sensors based on non-dispersive infrared (NDIR) technology have become popular due to their good stability and high precision. . [0003] The optical path length of the gas chamber of the existing NDIR carbon dioxide sensor is fixed, which cannot be well ad...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/3504G01N21/01F24F11/89
CPCG01N21/3504G01N21/01F24F11/89G01N2021/0112
Inventor 羡浩博苗岑岑
Owner GREE ELECTRIC APPLIANCES INC
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