A device and method for real-time detection of tree growth status based on microfluidic chip
A microfluidic chip and real-time detection technology, applied in the field of microfluidic technology and tree detection, to achieve the effect of accurate data, accurate and effective detection data, and simple operation
Active Publication Date: 2019-08-27
JIANGSU UNIV
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Problems solved by technology
[0004] The purpose of the present invention is to address the existing problems in tree growth detection, and propose a real-time detection device and method for tree growth state based on microfluidic chips, to detect the water volume and ion concentration inside the tree in real time, and to understand whether the concentration of inorganic salts in trees affects the growth of trees. The trees grow normally, the detection results are accurate, the structure is simple, the operation is easy and the degree of automation is high
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[0023] see figure 1 According to the present invention, a real-time detection device for tree growth state based on a microfluidic chip is composed of a switch 1 , a USB interface 2 , a fixing device 3 , a housing 4 and a millimeter-scale conduit 6 . The switch 1 and the USB2 interface 2 are installed on the housing 4, and the switch 1 is located in the middle of the front of the housing 4, which determines the opening and closing of the whole device; the USB interface 2 is located in the lower part of the front of the housing 4, so that the user can modify the working parameters of the device. The fixing device 3 is connected to the left and right sides of the casing 4 , and the fixing device 3 fixes the casing 4 on the outer surface of the tree 30 . The upper and lower ends of the millimeter-scale conduit 6 are drawn from the upper and lower sides of the housing 4 correspondingly, and the upper and lower ends of the millimeter-scale conduit 6 are inserted into the inside of ...
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The invention discloses a tree growth state real-time detecting device and method based on a micro-fluidic chip, and relates to the microfluidics technology and the tree detecting technology.Millimeter-scale guide tubes are guided out of a main channel of the micro-fluidic chip, the guide-out ends are each fixedly connected with a needle, and the two needles are inserted into a tree guide tube vertically.Three detecting electrodes are arranged on one side of the upper portion of the main channel of the micro-fluidic chip in the axial direction of the main channel from top to bottom at equal intervals, a pressure detecting channel perpendicular to the main channel is guided out of the lower portion of the main channel, and a pressure sensor is arranged at an end opening of the pressure detecting channel.Liquid flows among the three detecting electrodes and a power supply electrode, one of the three detecting electrodes is selected to work through a circuit board, and ionic concentration is obtained.According to the method, the water amount in the tree guide tube can be detected in real time, the ionic concentration is detected through a conductivity method, data is accurate, whether the tree inorganic salt concentration is normal or not can be known, and detecting data is more precise and effective.
Description
technical field [0001] The invention relates to microfluidic technology and tree detection technology, in particular to real-time detection technology of tree growth state based on microfluidic chip. Background technique [0002] During the growth of trees, the internal moisture and inorganic salt concentration are necessary elements to ensure the healthy growth of trees. By detecting these two indicators, the growth of trees can be well grasped. However, the current detection method for the moisture and inorganic salt concentration inside the tree is firstly through manual sampling, and then manual detection. This detection method is not only inefficient and costly, but also lacks real-time detection results, and the data value is not high, and even untimely detection leads to neglect of management and affects tree growth. [0003] At present, a tree growth state detector is proposed in the document of Chinese invention patent application number 201520224038.7, which uses ...
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IPC IPC(8): G01N27/07B01L3/00
Inventor 杨宁沈凯毛罕平孙俊周晓迪
Owner JIANGSU UNIV