Field automatic photosynthetic instrument

Abstract

The utility model discloses a field automatic photosynthetic instrument, which comprises a base, a light source module, a light source module and a light source module, the base is provided with a fixing clamp and a sample opening, and a sealing element is arranged at the sample opening; the chlorophyll fluorescence detection assembly is arranged on the base; the gas exchange detection assembly is arranged on the base; the box body is of a transparent structure, and an opening is formed in one side of the box body; the moving mechanism is connected with the base and the box body, and the moving mechanism can drive the box body to move in the direction close to or away from the base; the base is adaptively connected with the opening, so that the box body forms a closed structure; and the base is separated from the opening, so that the box body forms an open structure. According to the utility model, not only can long-term field unattended long-term monitoring be met, but also gas exchange and chlorophyll fluorescence can be measured, and the two kinds of measurement can be carried out independently or simultaneously, so that comparison and analysis among different measurement results are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of plant physiological measurement, and further relates to a field automatic photosynthesis instrument. Background Art

[0002] Photosynthesis is the most important life process on Earth and has long been a hot topic in scientific research. The main methods for measuring photosynthesis include gas exchange and chlorophyll fluorescence, and both methods can also be used simultaneously. However, in existing technologies, simultaneous measurement of both methods typically requires manual intervention, which is time-consuming and labor-intensive, and precludes unmanned, automated, long-term field monitoring. Furthermore, existing technologies include measurements at smaller scales, such as individual leaves, and larger scales, such as entire plants or groups of plants, but lack measurements at intermediate scales, such as individual branches.

[0003] Therefore, there is an urgent need to develop a field automatic photosynthetic instrument that can meet the needs of long-term unattended monitoring in the field and simultaneously measure gas exchange and chlorophyll fluorescence. Utility Model Content

[0004] In response to the above technical problems, the purpose of the present utility model is to provide an automatic field photosynthetic instrument that can not only meet the needs of long-term unattended monitoring in the field, but also measure gas exchange and chlorophyll fluorescence. The two measurements can be performed separately or simultaneously, which facilitates the comparison and analysis of different measurement results.

[0005] In order to achieve the above object, the utility model provides a field automatic photosynthesis instrument, comprising:

[0006] A base, wherein the base is provided with a fixing clamp and a sample port, the sample port is provided with a sealing member, the sealing member is used to seal the sample port, and the fixing clamp is used to fix the plant to be tested;

[0007] A chlorophyll fluorescence detection component is provided on the base, and is used to measure photosynthesis of the plant to be tested;

[0008] A gas exchange detection component is provided on the base, and is used to measure photosynthesis of the plant to be tested;

[0009] A box body, wherein the box body is a transparent structure and an opening is provided on one side of the box body;

[0010] a moving mechanism, the moving mechanism being connected to the base and the box respectively, and the moving mechanism being capable of driving the box to move toward or away from the base;

[0011] When the moving mechanism drives the box to move a preset distance toward the base, the base is adapted to connect with the opening, so that the box forms a closed structure, and the fixing clamp, the detection part of the chlorophyll fluorescence detection component, and the collection part of the gas exchange detection component are all located in the box;

[0012] When the moving mechanism drives the box to move a preset distance in a direction away from the base, the base is separated from the opening, so that the box forms an open structure.

[0013] In some embodiments, the sealing member comprises a soft film, wherein a slit is provided in the middle of the soft film, and the plant to be tested can pass through the slit and extend into the box, and the slit can remain sealed.

[0014] In some embodiments, the fixing clamp includes a first clamping portion and a second clamping portion, the first clamping portion and the second clamping portion are hollow structures that can transmit light, and the first clamping portion and the second clamping portion can be opened and closed to clamp and fix the plant to be tested.

[0015] In some embodiments, the fixing clamp further includes a fixing rod and a hinge, one end of the fixing rod is fixed to the base, the other end of the fixing rod is fixedly connected to the first clamping part, and the hinge is respectively connected to the first clamping part and the second clamping part, so that the second clamping part can be opened or closed relative to the first clamping part.

[0016] In some embodiments, the chlorophyll fluorescence detection assembly includes a chlorophyll fluorescence probe and an optical fiber, the chlorophyll fluorescence probe is arranged on the base, the optical fiber is connected to the chlorophyll fluorescence probe, and the optical fiber is arranged at a preset angle to the fixing clamp, so that the optical fiber can be close to the light-facing surface of the leaves of the plant to be tested to detect its chlorophyll fluorescence signal under natural light.

[0017] In some embodiments, the gas exchange detection assembly includes a gas sampling tube, which passes through the base, one end of which is used to extend into the box, and the other end of which is used to connect to the photosynthetic instrument host.

[0018] In some embodiments, further comprising:

[0019] A fan is provided in the box and is used to mix the gas concentration in the box.

[0020] In some embodiments, the box body is a square structure, a fixed portion is provided at the bottom of the box body, the moving mechanism is installed on the base, and a moving end of the moving mechanism is connected to the fixed portion.

[0021] In some embodiments, the moving mechanism is an electric guide rail, which includes an electric guide rail body and a moving end. The electric guide rail body is fixed on the base, and the moving end is fixed on the fixed part. The electric guide rail body can drive the moving end to move back and forth along the axial direction of the electric guide rail body.

[0022] In some embodiments, further comprising:

[0023] A control component is connected to the electric guide rail and is used to control the operation of the electric guide rail.

[0024] Compared with the prior art, the field automatic photosynthetic instrument provided by the present invention has at least one of the following beneficial effects:

[0025] 1. The field automatic photosynthesis instrument provided by the utility model can not only meet the needs of long-term unattended monitoring in the field, but also measure gas exchange and chlorophyll fluorescence. The two measurements can be performed separately or simultaneously, which is convenient for comparison and analysis of different measurement results. Chlorophyll fluorescence can be measured while measuring photosynthesis, which increases the number of measurement parameters and improves measurement efficiency.

[0026] 2. The field automatic photosynthetic instrument provided by the utility model can measure single leaves of plants or entire branches, and has a wider range of applications. The measurement can be carried out in the sun, maintaining the natural lighting state of the plants, and improving the accuracy and authenticity of the measurement results. In addition, the box can be in an open state during the measurement interval, so that the branches and leaves of the plants are in a natural environment, reducing the impact of the measurement on the growth of the plants, and further improving the accuracy and authenticity of the measurement results.

[0027] 3. The field automatic photosynthetic instrument provided by the utility model has a box that can be automatically opened and closed by an electric guide rail according to the set interval, realizing unattended automatic monitoring. It can perform automatic measurements in the field for a long time without human intervention, saving manpower, material and financial resources. The field automatic photosynthetic instrument has low cost, good effect and high comprehensive benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The preferred embodiments will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0029] Figure 1 It is a structural schematic diagram of a field automatic photosynthetic instrument according to a preferred embodiment of the present utility model.

[0030] Description of Figure Numbers:

[0031] Base 1, fixing clamp 11, seal 12, slit 121, chlorophyll fluorescence detection component 2, chlorophyll fluorescence probe 21, optical fiber 22, gas exchange detection component 3, gas sampling tube 31, box 4, fan 41, fixing part 42, moving mechanism 5, electric guide rail body 51, moving end 52, plant to be tested 6. DETAILED DESCRIPTION

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without inventive work.

[0033] To simplify the drawings, only the parts relevant to the utility model are schematically shown in each figure; they do not represent the actual structure of the product. Furthermore, to simplify the drawings and facilitate understanding, in some figures, only one of the components with the same structure or function is schematically depicted or labeled. In this document, "one" not only means "only one" but also "more than one."

[0034] It should be further understood that the term "and / or" used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

[0035] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0036] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0037] In one embodiment, the reference Figure 1The utility model provides an automatic outdoor photosynthesis instrument, comprising: a base 1, a chlorophyll fluorescence detection component 2, a gas exchange detection component 3, a box 4 and a moving mechanism 5. The base 1 is provided with a fixing clamp 11 and a sample port. The sample port is provided with a sealing member 12, the sealing member 12 is used to seal the sample port, and the fixing clamp 11 is used to fix the plant to be tested 6; the chlorophyll fluorescence detection component 2 is provided on the base 1, and the chlorophyll fluorescence detection component 2 is used to measure the photosynthesis of the plant to be tested 6; the gas exchange detection component 3 is provided on the base 1, and the gas exchange detection component 3 is used to measure the photosynthesis of the plant to be tested 6; the box 4 is a transparent structure, and an opening is provided on one side of the box 4; the moving mechanism 5 is respectively connected to the base 1 and the box 4, and the moving mechanism 5 can drive the box 4 to move toward or away from the base 1;

[0038] When the moving mechanism 5 drives the box body 4 to move a preset distance toward the base 1, the base 1 is adapted to be connected with the opening, so that the box body 4 forms a closed structure, and the fixing clamp 11, the detection part of the chlorophyll fluorescence detection component 2, and the collection part of the gas exchange detection component 3 are all located inside the box body 4; when the moving mechanism 5 drives the box body 4 to move a preset distance away from the base 1, the base 1 is separated from the opening, so that the box body 4 forms an open structure.

[0039] In this embodiment, the field automatic photosynthesis instrument can not only meet the needs of long-term unattended monitoring in the field, but also measure gas exchange and chlorophyll fluorescence. The two measurements can be performed separately or simultaneously, which is convenient for comparison and analysis between different measurement results. Chlorophyll fluorescence can be measured while measuring photosynthesis, which increases the number of measurement parameters and improves measurement efficiency.

[0040] Specifically, refer to the appendix of the manual. Figure 1 The seal 12 includes a flexible membrane with a slit 121 in the middle. The plant 6 to be tested can pass through the slit 121 and extend into the box 4, and the slit 121 can maintain a seal. The seal 12 allows the plant 6 to pass through while preventing air leakage. The flexible membrane is a deformable soft material, such as a rubber membrane. Of course, the seal 12 can also be configured as an openable and closable structure, as long as the structure or device can achieve a sealed sample port after the plant 6 to be tested passes through.

[0041] Reference Manual Figure 1 The fixing clamp 11 includes a first clamping portion and a second clamping portion. The first clamping portion and the second clamping portion are hollow structures that are transparent to light. The first clamping portion and the second clamping portion can be opened and closed to clamp and fix the plant 6 to be tested. For example, the first clamping portion and the second clamping portion are square structures with a transparent net disposed inside the square structure. The transparent net can be made of materials such as transparent fishing line. The first clamping portion and the second clamping portion can also be configured as other hollow structures that are transparent to light.

[0042] The fixing clamp 11 further includes a fixing rod and a hinge. One end of the fixing rod is fixed to the base 1, and the other end of the fixing rod is fixedly connected to the first clamping portion. The hinge is respectively connected to the first clamping portion and the second clamping portion, so that the second clamping portion can be opened or closed relative to the first clamping portion. The hinge can be arranged at an end of the first clamping portion away from the fixing rod, or the hinge can be arranged on both sides of the first clamping portion. The fixing clamp 11 is preferably placed horizontally to facilitate the branches and leaves of the plant to be tested 6 to receive sunlight and maintain photosynthesis.

[0043] The hollowed portion of the fixing clamp 11 must be strong, not easily broken, and transparent so as not to block light. Nylon can also be used. The fixing clamp 11 can keep the leaves of the plant 6 to be measured flat when fixed, facilitating measurement. It is also suitable for curled or uneven leaves, making them more suitable for photosynthetic measurement. The plant 6 to be measured can be a single leaf, an entire branch, or even a medium-sized whole plant.

[0044] It should be pointed out that the specific structure of the fixing clamp 11 is described in accordance with the drawings in the specification. In actual use, other structures can also be used, as long as the structure or device can be used to clamp and fix the plant 6 to be tested and does not affect the photosynthesis of the plant 6 to be tested. This is only for the purpose of better illustrating the present invention and should not constitute a limitation to the present invention.

[0045] Reference Manual Figure 1 The chlorophyll fluorescence detection component 2 includes a chlorophyll fluorescence probe 21 and an optical fiber 22. The chlorophyll fluorescence probe 21 is arranged on the base 1. The optical fiber 22 is connected to the chlorophyll fluorescence probe 21, and the optical fiber 22 is arranged at a preset angle to the fixing clamp 11, so that the optical fiber 22 can be close to the light-facing surface of the leaves of the plant to be tested 6 to detect its chlorophyll fluorescence signal under natural light. The angle between the optical fiber 22 and the fixing clamp 11 is 30°-60°, such as 30°, 40°, 45°, 50°, 55°, etc. Of course, the chlorophyll fluorescence detection component 2 can also adopt other existing devices, as long as the device can detect the plant to be tested 6 on the fixing clamp 11.

[0046] Reference Manual Figure 1 The gas exchange detection assembly 3 includes a gas sampling tube 31 that extends through the base 1. One end of the gas sampling tube 31 extends into the housing 4, and the other end of the gas sampling tube 31 is connected to the photosynthetic instrument. The photosynthetic instrument extracts gas from the housing 4 through the gas sampling tube 31, analyzes changes in the carbon dioxide concentration of the gas, and calculates the photosynthetic rate of the plant 6 to be tested.

[0047] Reference Manual Figure 1The field automatic photosynthesis instrument further includes a fan 41, which is arranged in the box 4 and is used to mix the gas concentration in the box 4. By arranging the fan 41 in the box 4, the air in the box 4 can be made more uniform, further restoring the natural measurement conditions and improving the accuracy of photosynthesis measurement.

[0048] In one embodiment, the reference Figure 1 In the above embodiment, the box body 4 has a square structure. Of course, the box body 4 can also be configured as a structure of other shapes, such as a hexagonal structure, a trapezoidal structure, etc. A fixing portion 42 is provided at the bottom of the box body 4. The mobile mechanism 5 is mounted on the base 1, and the moving end of the mobile mechanism 5 is connected to the fixing portion 42. The fixing portion 42 includes two parallel fixed plates arranged at intervals, and the two fixing plates are fixed to the bottom of the box body 4. Of course, the fixing portion 42 can also be configured as other structures, as long as the structure can achieve the fixing of the moving end of the mobile mechanism 5.

[0049] Specifically, the moving mechanism 5 is an electric guide rail, which includes an electric guide rail body 51 and a moving end 52. The electric guide rail body 51 is fixed to the base 1, and the moving end 52 is fixed to the fixed portion 42. The electric guide rail body 51 can drive the moving end 52 to reciprocate along the axis of the electric guide rail body 51. The moving mechanism 5 can also adopt an electric push rod structure, an electric lead screw nut structure, etc., as long as the structure or device can achieve the purpose of driving the box body 4 to move toward or away from the base 1.

[0050] Furthermore, the field automatic photosynthetic instrument also includes: a control component, which is connected to the electric guide rail and is used to control the operation of the electric guide rail so that the electric guide rail can automatically open or close the box 4 according to the set interval time, thereby realizing unattended automatic monitoring.

[0051] In this embodiment, the field automatic photosynthetic instrument can measure a single leaf of a plant or an entire branch, and has a wider range of applications; the measurement can be carried out in sunlight to maintain the natural lighting state of the plant, thereby improving the accuracy and authenticity of the measurement results. In addition, during the measurement gap, the box 4 can be in an open state, so that the plant branches and leaves are in a natural environment, reducing the impact of the measurement on plant growth and further improving the accuracy and authenticity of the measurement results.

[0052] The box 4 can also be automatically opened and closed by the electric guide rail according to the set interval, realizing unattended automatic monitoring, and can be automatically measured in the field for a long time without human intervention, saving manpower, material and financial resources. The field automatic photosynthetic instrument has low cost, good effect and high comprehensive benefits.

[0053] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant description of other embodiments.

[0054] It should be noted that the above embodiments can be freely combined as needed. The above are only preferred embodiments of the present invention. It should be noted that those skilled in the art can make several improvements and modifications without departing from the principles of the present invention, and such improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A field automatic photosynthetic instrument, characterized in that: include: A base, wherein the base is provided with a fixing clamp and a sample port, the sample port is provided with a sealing member, the sealing member is used to seal the sample port, and the fixing clamp is used to fix the plant to be tested; A chlorophyll fluorescence detection component is provided on the base, and is used to measure photosynthesis of the plant to be tested; A gas exchange detection component is provided on the base, and is used to measure photosynthesis of the plant to be tested; A box body, wherein the box body is a transparent structure and an opening is provided on one side of the box body; a moving mechanism, the moving mechanism being connected to the base and the box respectively, and the moving mechanism being capable of driving the box to move toward or away from the base; When the moving mechanism drives the box to move a preset distance toward the base, the base is adapted to connect with the opening, so that the box forms a closed structure, and the fixing clamp, the detection part of the chlorophyll fluorescence detection component, and the collection part of the gas exchange detection component are all located in the box; When the moving mechanism drives the box to move a preset distance in a direction away from the base, the base is separated from the opening, so that the box forms an open structure.

2. The field automatic photosynthetic instrument according to claim 1, characterized in that: The sealing member comprises a soft film, wherein a slit is provided in the middle of the soft film, and the plant to be tested can pass through the slit and extend into the box body, and the slit can be kept sealed.

3. The field automatic photosynthetic instrument according to claim 1, characterized in that: The fixing clamp includes a first clamping portion and a second clamping portion. The first clamping portion and the second clamping portion are hollow structures that can transmit light. The first clamping portion and the second clamping portion can be opened and closed to clamp and fix the plant to be tested.

4. The field automatic photosynthesis instrument according to claim 3, characterized in that: The fixing clamp also includes a fixing rod and a hinge, one end of the fixing rod is fixed to the base, and the other end of the fixing rod is fixedly connected to the first clamping part, and the hinge is respectively connected to the first clamping part and the second clamping part, so that the second clamping part can be opened or closed relative to the first clamping part.

5. The field automatic photosynthesis instrument according to claim 1, characterized in that: The chlorophyll fluorescence detection component includes a chlorophyll fluorescence probe and an optical fiber. The chlorophyll fluorescence probe is arranged on the base. The optical fiber is connected to the chlorophyll fluorescence probe, and the optical fiber and the fixing clamp are arranged at a preset angle, so that the optical fiber can be close to the light-facing surface of the leaves of the plant to be tested to detect its chlorophyll fluorescence signal under natural light.

6. The field automatic photosynthesis instrument according to claim 1, characterized in that: The gas exchange detection component includes a gas sampling tube, which passes through the base. One end of the gas sampling tube is used to extend into the box, and the other end of the gas sampling tube is used to be connected to the photosynthetic instrument host.

7. The field automatic photosynthesis instrument according to claim 1, characterized in that: Also includes: A fan is provided in the box and is used to mix the gas concentration in the box.

8. The field automatic photosynthetic instrument according to any one of claims 1 to 7, characterized in that: The box body is a square structure, a fixing portion is provided at the bottom of the box body, the moving mechanism is installed on the base, and a moving end of the moving mechanism is connected to the fixing portion.

9. The field automatic photosynthetic instrument according to claim 8, characterized in that: The moving mechanism is an electric guide rail, which includes an electric guide rail body and a moving end. The electric guide rail body is fixed on the base, and the moving end is fixed on the fixed part. The electric guide rail body can drive the moving end to move back and forth along the axial direction of the electric guide rail body.

10. The field automatic photosynthetic instrument according to claim 9, characterized in that: Also includes: A control component is connected to the electric guide rail and is used to control the operation of the electric guide rail.

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