Greenhouse gas and volatile organic compound volume concentration and column concentration monitoring system and method

A technology for volatile organic compounds and volume concentration, which is used in radio wave measurement systems, satellite radio beacon positioning systems, measurement devices, etc.

Active Publication Date: 2021-11-26
ZHEJIANG UNIV HANGZHOU GLOBAL SCI & TECH INNOVATION CENT
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  • Application Information

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Problems solved by technology

[0005] Aiming at the limitations of current greenhouse gas and volatile organic compound volume concentration and column concentration monitoring technology, the present invention provides a monitoring system and monitoring method for real-time measurement of greenhouse gas and volatile organic compound volume concentration and column concentration

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  • Greenhouse gas and volatile organic compound volume concentration and column concentration monitoring system and method

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Embodiment Construction

[0028] The invention provides a greenhouse gas and volatile organic compound volume concentration and column concentration monitoring system and monitoring method. The system includes a sun tracking device, a gas infrared absorption device, an optical path switching device and an infrared spectrum measurement and control device. The sun tracking device can realize the automatic and stable introduction of sunlight to the optical path switching device, and at the same time provide real-time orientation and time information. It specifically includes a sun tracker and a GPS receiver, and the GPS receiver is fixed on the frame of the sun tracker for receiving position and time information. The gas infrared absorption device uses a sampling pump to extract the measuring gas through the sampling port to the gas absorption pool. The gas absorbs the infrared light emitted by the infrared light source in the gas absorption pool, and the infrared light absorbed by the gas enters the opti...

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Abstract

The invention provides a greenhouse gas and volatile organic compound volume concentration and column concentration monitoring system and method. According to the system, sunlight is automatically and stably guided into the light path switching device through the sun tracking device, and meanwhile real-time azimuth and time information is provided. The infrared light absorbed by the gas part enters the light path switching device by using the gas infrared absorption device. The light path switching device is used for realizing automatic switching of a light path between the sun tracking device and the gas infrared absorption device, dividing an emergent light path into a near-infrared light path and a mid-infrared light path, and sending the near-infrared light path and the mid-infrared light path to the infrared spectrum measurement and control device for measuring a near-infrared spectrum and a mid-infrared spectrum of gas; and meanwhile, a computer is used for controlling the whole set of system and carrying out inversion on spectral data to obtain the volume concentration and the column concentration of the gas. The system and the method can be applied to real-time monitoring of volume concentration and column concentration of greenhouse gas and volatile organic compounds in multiple scenes, such as fixed point use or vehicle-mounted, shipborne, airborne and other mobile platforms.

Description

technical field [0001] The invention belongs to the field of environmental monitoring and optical remote sensing, and in particular relates to a monitoring system and monitoring method for volume concentration and column concentration of greenhouse gases and volatile organic substances. Background technique [0002] Greenhouse gases can produce the greenhouse effect, leading to global warming. At the same time, volatile organic compounds are key precursors of pollutants such as atmospheric ozone and fine particulate matter. Therefore, accurate measurement of the volume concentration and column concentration of greenhouse gases and volatile organic compounds is of great significance in the fields of ecological environmental protection, energy saving and emission reduction, and climate change. At present, technologies such as gas chromatography, mass spectrometry, and cavity ring-down spectroscopy are mainly used to measure the volume concentration of greenhouse gases and vol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/3504G01N21/01G01S19/14
CPCG01N21/3504G01N21/01G01S19/14Y02A50/20
Inventor 王志彬裴祥宇徐正宁邝斌宇
Owner ZHEJIANG UNIV HANGZHOU GLOBAL SCI & TECH INNOVATION CENT
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