Measuring device and method of porphyra haitanensis area
A frond area and measuring device technology, applied in the direction of measuring devices, optical devices, instruments, etc., can solve the problems of error, thin thickness, high moisture content, etc., and achieve the effect of accurate length and width, accurate measurement and good repeatability
Inactive Publication Date: 2016-09-21
NINGBO UNIV
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Problems solved by technology
The traditional method is to use indicators such as length, width and aspect ratio to measure, but the fronds vary greatly. For example, the aspect ratio of the seedling stage is 10-100, and at the end, it is 1-0.3. Only the length and width are used as indicators Determining or predicting growth with considerable error
At the same time, the thickness is only about 1 / 100, the color of the fronds is different, the water content is high, and the contrast with the background of glass, water, etc. is small, and the boundary of the fronds is easily confused with the background. Therefore, the error of the direct measurement method Big
It is of great significance to measure the yield by measuring the leaf area in seaweed such as laver, and there is no research report on the measurement of the leaf area.
Method used
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[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0022] A measuring device for the area of altar laver fronds, such as figure 1 As shown, it includes an objective lens 1 and a sample stage 4. The objective lens 1 is located above the sample stage 4. The bottom end of the objective lens 1 is provided with a color filter 2, which can obtain a suitable spectrum to record a clear image. The color filter 2 is light yellow; the sample table 4 is made of transparent quartz glass, the sample table 4 is equipped with a sample 3, the top of the sample 3 is covered with a layer of acrylic film, and the bottom of the sample table 4 is provided with a main light source 5. The objective lens 1, the color filter 2, the sample 3, the sample table 4 and the main light source 5 are all arranged in a straight line; a side light source 6 is arranged around the sample table 4, and the side light sourc...
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The invention belongs to the field of blade measurement and particularly relates to a measuring device of a porphyra haitanensis area. The device comprises an object lens and a sample platform. The object lens is above the sample platform. The bottom end of the object lens is provided with a color filtering lens. The sample platform is equipped with a sample. A main light source is arranged under the sample platform. The object lens, the color filtering lens, the sample, the sample platform and the main light source are arranged in the same straight line. The device is a very stable and reliable selection for measuring the blade area of a porphyra haitanensis and has the characteristics of accurate measurement, good repeatability, and simple operation, the method is simple and easy and has higher accuracy and a better effect compared with a method with the use of a length and a width.
Description
technical field [0001] The invention belongs to the field of leaf measurement, and in particular relates to a device and method for measuring the area of the porphyra fronds. Background technique [0002] Leaves are the most important places for higher plants to carry out photosynthesis and transpiration. The size of the leaf area is an important indicator of plant growth and nutritional status, and a key factor in determining biomass and yield. The measurement of leaf area is used in higher plants, and it is an important trait index for studying the growth and development, yield formation and cultivation characteristics of plants. Among the methods for measuring the leaf area of many higher plants, such as the invention patent with the publication number "CN105180851A" and the name "Pine Needle Leaf Area Measuring Device and Method", it discloses the use of optical glass lenses, light sources, image sensors and other devices to measure pine needle leaves. The area is ...
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IPC IPC(8): G01B11/28
CPCG01B11/285
Inventor 骆其君严小军俞辰泽陈海敏杨锐周成旭高长顥吴小凯
Owner NINGBO UNIV