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
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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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