Portable monitoring device for wetland soil

A soil monitoring and portable technology, applied in measurement devices, instruments, fluorescence/phosphorescence, etc., can solve the problems of restricting the field application of planar optode technology, excessive volume, etc. wide effect

Active Publication Date: 2018-07-31
南京智感环境科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there has always been a technical bottleneck in the miniaturization of equipment, and the excessive volume restricts the

Method used

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  • Portable monitoring device for wetland soil
  • Portable monitoring device for wetland soil
  • Portable monitoring device for wetland soil

Examples

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Effect test

Embodiment 1

[0032] Such as figure 1 As shown in the structural diagram, a portable wetland soil monitoring device of the present invention includes a fluorescent sensing film 1, an optical transmission unit 2, a CMOS image sensor 3, a two-dimensional translation guide rail 4, an opaque casing 5 and a data acquisition module 6 and power supply. The optical conduction unit 2 of the device, on the optical path from the fluorescent sensing film 1 to the CMOS image sensor 3, sequentially includes a plane mirror 7, an LED light source 8, three lower optical lenses 9, and an electric rotary filter 10. And three optical lenses 11 on top. Under the uniform illumination of the excitation light emitted by the LED light source 8, the fluorescence sensing film 1 produces fluorescence of a specific wavelength, which is collected by the optical lens group and filtered by the electric rotating filter 10, and then received and converted by the CMOS image sensor 3. The collection module 6 processes and o...

Embodiment 2

[0045] The device in Example 1 was used to monitor the two-dimensional distribution information of the pH and dissolved oxygen (DO) of the bottom sediment in the Meiliang Bay area of ​​Taihu Lake on site. In the described device, the PO sensing membrane used to detect pH is based on modified 8-hydroxypyrene-1,3,6-trisodium sulfonic acid (HPTS-TOA) fluorescent dye, and cooperates with reference Fluorescent yellow 10GN (MFY) fluorescent sensing membrane with a membrane size of 4cm×2cm; the PO sensing membrane used to detect DO uses dual fluorophores, namely platinum octaethylporphyrin (PtOEP) fluorescent dye and reference dye MFY, the membrane size is 4cm x 2cm.

[0046] The PO sensing film used for detecting pH and the PO sensing film used for detecting DO are attached side by side on the window lens outside the device. After the PO film was fixed for 10 minutes, the device was slowly lifted vertically into the lake until the window mirror part of the device was inserted into ...

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Abstract

Provided is a portable monitoring device for wetland soil. The device comprises a lighttight shell and is characterized by further comprising fluorescence sensing film, an optical conducting unit, a CMOS image sensor, a two-dimensional translation guide rail and a data collecting module; the optical conducting unit comprises a plane mirror, an LED light source, an optical lens group and a electricrotary light filter in turn on a light path from the fluorescence sensing film to the CMOS image sensor, under uniform irradiation of exciting light emitted from the LED light source, fluorescent light with a certain wave length is generated from the fluorescence sensing film, the fluorescent light is gathered by the optical lens and filtered by the electric rotary light filter, after that the fluorescent light is received by the CMOS image sensor and undergoes signal transformation, and the data collecting module process the fluorescent light to obtain a detect result. The device can synchronously monitor multiple important geochemistry parameter information in water body, sediment or the wetland soil and other substrates, the device has the advantages that the carry and releasing are convenient, the response time is short, the spatial resolution ratio (millimeter-submillimeter) is high.

Description

technical field [0001] The invention relates to the technical field of environmental monitoring, in particular to a detection device for synchronously monitoring various important geochemical parameter information in substrates such as water body, sediment or wetland soil. Background technique [0002] With the frequent occurrence of water environment and water ecological problems (black and odorous water bodies, cyanobacteria blooms, offshore green tides and red tides, etc.), it seriously affects the human living environment and threatens human health. Realizing on-site monitoring of water and sediment in wetland soil can accurately grasp basic information such as the type and concentration of pollutants in sediment, pollution scope and degree, pollution source and transfer path, and provide basic data support for sediment pollution risk assessment and prediction. In-situ monitoring of sediments is an area that urgently needs to be expanded in water environment monitoring. ...

Claims

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Application Information

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IPC IPC(8): G01N21/64
CPCG01N21/645G01N21/6456G01N2021/6463G01N2021/6471
Inventor 丁士明李金鹏金增峰李利
Owner 南京智感环境科技有限公司
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