Dust concentration sensor and dust concentration detection module
A technology for dust concentration detection and dust concentration, which is applied in the direction of measuring devices, scientific instruments, suspensions and porous material analysis, etc., can solve the problems of inability to calibrate the accuracy, and achieve the effect of reducing input costs and convenient and simple operation
Pending Publication Date: 2019-04-12
GL TECH CO LTD
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Problems solved by technology
[0004] The purpose of the present invention is to provide a dust concentration sensor and a dust concentration detection module to solve the problem that the precision calibration of the dust detection device cannot be performed immediately when the precision calibration is required by using a special precision calibration equipment
Method used
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[0022] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0023] Example of dust concentration sensor:
[0024] combine figure 1 and figure 2 , The dust concentration sensor of this embodiment includes a housing 1, and the housing 1 is provided with a light emitting module 2, a light receiving module 5 and a dust concentration detection module, and a dust concentration detection area is formed between the light emitting module 2 and the light receiving module 5. In this embodiment, the light emitting module 2 is a laser, and the light receiving module 5 is a detector.
[0025] The dust concentration detection module includes a calibration device, and the calibration device includes a light-transmitting structure part and a switching part. Wherein, the light-transmitting structure part include...
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The invention provides a dust concentration sensor and a dust concentration detection module, and belongs to the technical field of dust concentration detection. The dust concentration sensor comprises a light ray emitting module and a light ray receiving module, a dust concentration detection area is formed between the light ray emitting module and the light ray receiving module, the dust concentration sensor further comprises a calibration device, the calibration device comprises a light transmission structure part and a switching part, the light transmission structure part comprises a lighttransmission structure with the certain light transmittance or two or more light transmission structures with the different light transmittance, the switching part and all the light transmission structures in the light transmission structure part are arranged in an assembled mode, and the switching part is used for switching any light transmission structure in the light transmission structure part to a detection light path between the light ray emitting module and the light ray receiving module. By utilizing the dust concentration sensor, the dust concentration can be measured, precision calibration can also be achieved and can be conducted in real time according to the needs, and operation is convenient, easy and quick.
Description
technical field [0001] The invention relates to a dust concentration sensor and a dust concentration detection module, belonging to the technical field of dust concentration detection. Background technique [0002] The application publication number is CN106769718A, and the patent application document titled "Dust Detection Device and Dust Detection Method" discloses a dust detection device, which includes a light emitting module and a light receiving module. In the dust concentration detection area, a detection chamber is formed in the dust concentration detection area, and a dust airflow to be measured flows through the detection chamber. The dust detection device can effectively detect the dust concentration. However, with the increase of the use time of the dust detection device, the measurement accuracy of the dust detection device will gradually decrease. Accuracy calibration of the dust detection device. [0003] The current accuracy calibration method usually uses ...
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Login to View More IPC IPC(8): G01N15/06
CPCG01N15/06G01N15/075
Inventor 赵彤宇张一新高华黄延超李朋宾周正周纪光
Owner GL TECH CO LTD