Biological aerosol particle counting monitoring equipment and monitoring method thereof
A bioaerosol, particle counting technology, applied in the field of safety monitoring, to achieve the effect of accurate monitoring results
Active Publication Date: 2020-03-10
BEIJING HTNOVA DETECTION TECH CO LTD
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[0009] The present invention aims to solve the problems described above
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[0055] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all 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. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.
[0056] In the present invention, the biologically active aerosol particles in the gas are radiated and inactivated by using the inactivated radiation source, and the i...
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The invention provides a biological aerosol particle counting monitoring system and a monitoring method thereof, the monitoring system comprises: an air inlet pipe used as a particle channel of a specific particle size, wherein the middle part of the air inlet pipe is provided with an inactivation zone; an inactivation radiation source that is used for performing radiation inactivation on the biological aerosol particles in the air inlet pipe; an optical detection chamber that is used for transmitting and detecting light beams; an air outlet pipe and an air pump; an excitation light source that is used for emitting fluorescence excitation light beams; an extinction trap that is used for absorbing the excitation light beam; a first photoelectric detector that is used for detecting a rice scattering light signal and is used for particle counting and particle size calculation; and a second photoelectric detector that is used for detecting the fluorescence signal and judging whether the aerosol particles are fluorescent particles or not. According to the invention, the biological aerosol particles are subjected to radiation inactivation by adopting the inactivation radiation source, and the biological aerosol is identified by combining a biological fluorescence quenching method, so that the interference of other non-biological fluorescent substances in nature such as vegetation andpetroleum combustion is effectively eliminated.
Description
technical field [0001] The invention relates to the technical field of safety monitoring, in particular to a bioaerosol particle counting monitoring device and a monitoring method thereof. Background technique [0002] The suspension system composed of the atmosphere and the active organisms contained therein or particles released by active organisms, macromolecular substances or volatile compounds can be collectively referred to as bioaerosol particles, whose particle size ranges from 0.01 to 100 μm, common pathogenic bacteria, etc. Bioaerosol particles generally have a particle size between 0.4 and 10 μm. [0003] In recent years, in the field of on-site monitoring and alarm technology for biological warfare agents, the research on continuous bioaerosol monitoring technology has been carried out at home and abroad. Continuous monitoring and on-site rapid detection of aerosols. [0004] Mie scattering and fluorescence scattering methods are common methods for bioaerosol m...
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Patent Timeline
Login to View More IPC IPC(8): G01N15/02G01N15/10G01N21/64
CPCG01N15/0211G01N15/10G01N21/643G01N2021/6432G01N2015/1022
Inventor 熊胜军王辰袁丁夏征
Owner BEIJING HTNOVA DETECTION TECH CO LTD