Plant leaf surface humidity sensor and plant leaf surface humidity measurement device

A technology of humidity sensor and surface humidity, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of inaccurate simulated leaf surface humidity value, difficult to quantitatively describe plant leaves, etc., achieve convenient and accurate data support, and improve sensing accuracy Effect

Active Publication Date: 2013-09-11
BEIJING RES CENT OF INTELLIGENT EQUIP FOR AGRI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is: to provide a plant leaf surface humidity sensor, to overcome the technical problems in the prior art that it is difficult to quantitatively describe the plant leaf surface humidity value and simulate the inaccurate leaf surface humidity value; Apparatus for measuring surface moisture on plant leaves

Method used

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  • Plant leaf surface humidity sensor and plant leaf surface humidity measurement device
  • Plant leaf surface humidity sensor and plant leaf surface humidity measurement device
  • Plant leaf surface humidity sensor and plant leaf surface humidity measurement device

Examples

Experimental program
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Effect test

Embodiment 1

[0039] This embodiment describes a plant leaf surface humidity sensor, including a substrate and a flexible copper strip;

[0040] The substrate is a flexible glass fiber board;

[0041] The flexible copper strip supports the flexible glass fiber board, and divides the flexible glass fiber board into a humidity sensing unit and a frequency sensing unit;

[0042] The humidity sensing unit is located on the left side of the humidity sensor, and the top of the flexible glass fiber board is the lower leaf-like pattern gold-plated copper grid, cellulose acetate polymer material, the upper leaf-like pattern gold-plated copper grid and the surface layer Optical latex coating;

[0043]The cellulose acetate polymer material forms two electrodes with the gold-plated copper grid with imitation leaf pattern and the gold-plated copper grid with the lower imitation leaf pattern respectively; the two electrodes are respectively connected with the surface optical latex coating It is bonded ...

Embodiment 2

[0046] Such as figure 1 As shown, this embodiment describes a plant blade surface humidity sensor, including: flexible glass fiber board 17 , flexible copper strip 12 , blade bending angle adjustment hole 13 and fixed sealing block 21 . The flexible glass fiber plate 17 is used as the substrate of the simulated blade, and the flexible copper strip 12 is 1 mm, supporting the flexible glass fiber plate 17 and dividing the flexible glass fiber plate 17 into a humidity sensing unit on the left and a frequency sensing unit on the right.

[0047] The structure of the humidity sensing unit on the left is as follows figure 2 As shown, on the top of the flexible glass fiber board are the lower leaf-like pattern gold-plated copper grid 18 , acetate polymer material 14 , the upper leaf-like pattern gold-plated copper grid 11 and the surface optical latex coating 19 . The cellulose acetate polymer material 14 is used to form two electrodes respectively with the upper gold-plated copper ...

Embodiment 3

[0052] This embodiment describes a plant leaf surface humidity measuring device, including a collection platform, a fixed platform, a support frame, a golden finger socket, a signal processing circuit, and the above-mentioned leaf surface humidity sensor;

[0053] The collection platform passes through the through hole on the side, passes through the support frame and is placed on the fixed platform;

[0054] The fixed table passes through the support frame and is squeezed and fixed by nuts;

[0055] The blade surface humidity sensor is fixed on the collection platform through a golden finger socket, and is connected with the signal processing circuit;

[0056] The signal processing circuit collects and processes the signal of the humidity sensor on the blade surface and provides a humidity signal with a voltage of 0-2.5V to the outside.

[0057] The plant leaf surface humidity measuring device can adjust the number of leaves according to the actual leaf size.

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Abstract

The invention discloses a plant leaf surface humidity sensor. The plant leaf surface humidity sensor comprises a base plate and a flexible copper bar, wherein the base plate is a flexible glass fiber plate; the flexible copper bar is used for supporting the flexible glass fiber plate and dividing the flexible glass fiber plate into a humid capacity sensing unit and a frequency sensing unit. The humid capacity sensing unit is located at the left side of the humidity sensor; two electrodes are respectively formed by a high molecular cellulose acetate material and an upper leaf-imitated line gold-plated copper grid, and the high molecular cellulose acetate material and a lower leaf-imitated line gold-plated copper grid; the two electrodes are respectively stuck with a surface layer optical emulsion coating and the flexible glass fiber plate to form a whole body, and are connected with the outside through a golden finger plug type interface. The frequency sensing unit is used located at the right side of the humidity sensor and comprises an annular gold-plated copper grid and a surface layer optical emulsion coating. The invention further discloses a plant leaf surface humidity measurement device. The plant leaf surface humidity sensor disclosed by the invention can quantitatively describe the plant leaf surface humidity value, and the accuracy of the leaf surface humidity value is high.

Description

technical field [0001] The invention relates to the field of sensory acquisition and monitoring of crop parameters, in particular to a plant leaf surface humidity sensor and a measuring device suitable for a greenhouse environment. Background technique [0002] The water content on the surface of plant leaves was originally used as a meteorological parameter to describe the total amount of dew or other sediment accumulation on the surface of plant leaves. At present, many are used in the field of agricultural production, mainly as plant fungus and disease control, and its value can provide data support for irrigation system control, monitoring fog or condensation environment, and greenhouse environment regulation. From domestic patents and literature inquiries, it can be seen that there are very few related sensors developed, and many of them use imported products for system integration, such as the utility model "Wireless Sensor Network Acquisition Node Equipment and System...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/00
Inventor 张馨赵春江鲍锋吴文彪田宏武梁居宝乔晓军
Owner BEIJING RES CENT OF INTELLIGENT EQUIP FOR AGRI
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