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Plant leaf vein flow velocity measurement device and method

A flow velocity measurement and plant leaf technology, applied in measurement devices, fluid velocity measurement, velocity/acceleration/impact measurement, etc., can solve the problems of re-replacement of blades, large data errors, large differences, etc., and achieve high practical value and results. Intuitive and reliable, the effect of avoiding experimental data errors

Active Publication Date: 2015-08-05
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the disadvantage of this method is that only 2~3 selected leaf veins can be measured under the microscope at a time, so the leaf veins of the entire leaf need to be replaced again
Due to the large differences between different leaves, it may lead to large errors in experimental data

Method used

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  • Plant leaf vein flow velocity measurement device and method
  • Plant leaf vein flow velocity measurement device and method
  • Plant leaf vein flow velocity measurement device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] like figure 1 As shown, a device for measuring the velocity of a plant leaf vein comprises a black wooden frame 2, a first black cardboard 3 and a single-lens reflex camera 4 which are respectively arranged directly behind and directly in front of the black wooden frame 2, and are arranged symmetrically at a certain angle. Several blue LED lamps 1 on both sides of the front of the black wooden frame 2, the middle part of the black wooden frame 2 is provided with a second black cardboard 11 for placing plant leaves 10, and the bottom of the black wooden frame 2 is provided with a A small black container 9 of fluorescent solution, and the single-lens reflex camera 4 is connected to a computer 8 through a data line.

[0038] The SLR camera 4 is equipped with a 100 mm fixed-focus macro lens, and a circular polarizing filter C-POL5, an orange filter 6 and a yellow filter 7 are installed in sequence in front of the lens.

[0039] There are 10 blue LED lights on both sides in...

Embodiment 2

[0046] like image 3 Shown, a kind of plant leaf vein velocity measurement method based on described device, comprises steps:

[0047] 1) Fix the plant leaf 10 to be observed on the second black cardboard 11. The plant leaf 10 in this embodiment uses the jasmine leaf, and adjust the height of the plant leaf 10 so that the bottom of the petiole extends into the small black container 9 in (see figure 2 );

[0048] 2) Turn on the video recording function of the SLR camera 4, adjust the front and rear positions of the SLR camera 4 so that the window can just capture the entire plant leaf 10;

[0049] 3) Turn on all the blue LED lights 1, and turn the circular polarizing filter C-POL to minimize the reflection on the captured picture;

[0050] 4) Start video recording, and at the same time inject the prepared fluorescent solution into the small black container 9 until it covers the bottom of the petiole;

[0051] 5) Observe the flow process of the fluorescent solution, stop re...

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Abstract

The invention discloses a plant leaf vein flow velocity measurement device. The plant leaf vein flow velocity measurement device includes a black wooden frame, first black card paper and a digital single-lens-reflex camera which are arranged just after and before the black wooden frame, and a plurality of blue LED lights which are symmetrically arranged at two sides at a position before the black wooden frame, certain included angles being formed between the blue LED lights; the middle of the black wooden frame is provided with second black card paper used for carrying a plant leaf; the bottom of the black wooden frame is provided with a black small container for carrying a fluorescent solution; and the single-lens-reflex camera is connected with the computer through a data line. The invention also provides a plant leaf vein flow velocity measurement method. With the plant leaf vein flow velocity measurement device and method adopted, the flow velocities of leaf veins in different levels on the whole plant leaf at any period can be effectively measured, and large experimental data errors which may be brought about by large differences of different leaves when the leaves are replaced can be avoided. The algorithm designed in the invention can be also applied to other similar experiment photographing data extraction, and has a high practical value.

Description

technical field [0001] The invention relates to the field of flow velocity measurement, in particular to a device and method for measuring plant leaf vein flow velocity. Background technique [0002] At present, there are many methods for measuring flow velocity, but the method for measuring the flow velocity of plant leaf veins is extremely rare. Throughout the relevant domestic and foreign literature, only Hüve measured the velocity of plant leaf veins under a microscope in 2002 using a neutral red / acid fuchsin solution. However, the disadvantage of the method is that only 2 to 3 selected veins can be measured under the microscope at a time, so to measure the veins of the entire leaf, the leaf needs to be replaced again. Due to the large differences between different leaves, it may lead to large errors in the experimental data. Contents of the invention [0003] In order to overcome the deficiencies of the above-mentioned prior art, the present invention provides an ef...

Claims

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Application Information

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IPC IPC(8): G01P5/20
Inventor 刘旺玉罗远强王力骆涛彭毅
Owner SOUTH CHINA UNIV OF TECH
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