Sensor for detecting particulate matter in air and manufacturing method thereof
A sensor and particulate matter technology, which is applied in the PM2.5 sensor and its manufacture to detect fine particles in the air, can solve the problems of low detection accuracy, large volume and weight, complex structure, etc., to simplify the sensor structure and save energy. The effect of improving manufacturing cost and detection accuracy
Active Publication Date: 2017-10-17
北京洛可可科技有限公司
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Problems solved by technology
The second approach, that is, various commercial air inspection devices, has defects such as large volume and weight, inconvenient portability, and low detection accuracy.
[0006] The above-mentioned device solves the shortcomings of the air detection equipment in the traditional technology, such as large volume and inconvenient portability.
However, according to the structure of the above-mentioned device, it can be seen that its structure is relatively complicated, and the surfaces constituting the measurement chamber need to have a certain position and relative inclination relationship.
In addition, there are strict requirements for setting the position of the light-emitting element and photosensitive element in the measurement room, otherwise the accuracy of the measurement result will be affected
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[0026] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present application will be clearly and completely described below in conjunction with specific embodiments of the present invention and corresponding drawings. It should be pointed out that, obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0027] combine first figure 1 A schematic diagram illustrating the configuration of an air particulate matter detection device to which the sensor of the present invention is applied. As shown in the figure, the detection device includes a sensor 1, a driving circuit 2 thereof, and a display device 3 that can be conne...
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Abstract
A sensor (1) for detecting a particulate matter in air and a method for manufacturing same, and a detection device containing the sensor (1). The sensor (1) comprises: an upper part (11) and a lower part (12), wherein the upper part (11) comprises a particle filter (112) provided on an inner side of the upper part (11), a plurality of light source cavities (114) and a plurality of detection cavities (113) which are arranged in an axis-symmetric manner respectively, and a passing-through air inlet (111) and a passing-through air outlet (115) which are formed on the upper part (11) and are respectively used for the admission and discharge of air to be detected; the lower part (12) comprises a circuit (2) formed on an inner side of the lower part (12), and a plurality of light-emitting elements (121) and a plurality of light detection elements (122) which are within a range corresponding to the light source cavities (114) and the detection cavities(113) and are arranged in an axis-symmetric manner on the inner side thereof respectively; and the axis of symmetry is an axis formed by connecting the centre of the air inlet (111) and the centre of the air outlet (115).
Description
technical field [0001] The invention relates to a sensor for detecting particulate matter in the air and a manufacturing method thereof, in particular to a sensor for detecting fine particulate matter in the air, such as PM2.5, and a manufacturing method thereof. Background technique [0002] With the advancement of science and technology and the improvement of living standards, people are paying more and more attention to health issues. Among them, people's awareness of pollution prevention is gradually strengthened, and people pay more and more attention to the pollution of the living environment. As a relatively serious pollution situation that cannot be ignored, air pollution has also received more and more attention. Correspondingly, sensors that can be used to detect the content of particulate matter in the air, especially fine particulate matter, such as PM2.5, are hot. [0003] At present, there are two main ways for people to obtain air quality data in the environ...
Claims
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IPC IPC(8): G01N15/06
CPCG01N15/06
Inventor 艾莉娜·耶尔沃利诺法比奥·圣阿加塔董明智张国旗王小葵
Owner 北京洛可可科技有限公司