Aerosol automatic collection and Raman spectrum detection device

A Raman spectrum detection and automatic collection technology, applied in measurement devices, Raman scattering, sampling devices, etc., can solve problems such as immaturity, achieve easy aggregation or stratification, ensure orderly operation, and realize data transmission. Effect

Inactive Publication Date: 2018-09-04
CHINA JILIANG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the study of aerosols, especially in the aspect of environmental particles, automatic semi-continuous and long-term acquisition and detection measurement technology is not yet mature

Method used

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  • Aerosol automatic collection and Raman spectrum detection device
  • Aerosol automatic collection and Raman spectrum detection device
  • Aerosol automatic collection and Raman spectrum detection device

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Embodiment Construction

[0026] In order to facilitate those skilled in the art to understand the technical solution of this patent, the technical solution of this patent will be further described in the form of specific cases below.

[0027] Such as figure 1 As shown, an aerosol automatic collection and Raman spectrum detection device, including: collection head, airflow generator, air pump, flexible silver-plated porous mesh, tape coil, lifting detection platform, vacuum pump, objective lens, data collection and storage unit, CCD , laser, power supply, single-chip microcomputer system, waterproof casing. The airflow generator passes the aerosol sequentially through the collection head with rain-proof filter, and the aerosol sample is stored in the hole of the flexible silver-coated porous belt through the air pump. After the set collection time is over, the flexible silver-coated porous belt moves to The lifting detection platform is fixed by a vacuum pump. The lifting detection platform can move a...

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Abstract

The invention discloses an aerosol automatic collection and Raman spectrum detection device, and belongs to the technical field of aerosol air detection. The system consists of an aerosol collection unit, an aerosol transmission unit, a laser detection unit, a data acquisition and storage unit and a control unit. The aerosol automatic collection and Raman spectrum detection device provided by theinvention is based on a single chip microcomputer control system, realizes the automatic collection of aerosol by using an aerosol collection device, orderly runs the system through the control unit,and performs Raman spectrum collection on collected aerosol particles by using a red light or near infrared semiconductor laser, a reflective optical path and a refrigeration CCD. The classification and identification of an aerosol particle samples are realized by a hierarchical clustering method for the collected Raman spectra of the aerosol particles. According to the device provided by the invention, the characteristics of automatic aerosol collection and detection for a long time, compact structure, strong operability and the like can be realized; meanwhile, a shell of the whole system iswaterproof, and the requirements on a use environment are relatively low.

Description

technical field [0001] The invention relates to an aerosol automatic collection and Raman spectrum detection device, belonging to the technical field of aerosol detection. Background technique [0002] Aerosols in the atmosphere can cause disease, reduce visibility, and affect weather and climate. Atmospheric aerosols have been linked to increases in cardiovascular disease, chronic obstructive pulmonary disease, and other diseases. Many components of aerosols are harmful, for example carcinogens such as benzopyrene and other polycyclic aromatic hydrocarbons in soot or heavy metals such as mercury in emissions from coal-fired power plants. However, many unknowns remain about the particle constituents of aerosols that have the greatest detrimental health effects. Some diseases of other animals and many plant pathogens are airborne by fungal spores, bacteria and viruses. The size of the aerosol is 0.001-100 μm, and the aerosol with a particle size of 0.1-10 μm plays an impor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/24G01N21/65
CPCG01N1/2205G01N1/2273G01N1/24G01N21/65
Inventor 王杰金怀洲金尚忠胡孔新杨宇刘开元徐冰冰朱磊磊
Owner CHINA JILIANG UNIV
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