CN113155771B - Split type quick accurate blade water potential survey device - Google Patents
Split type quick accurate blade water potential survey device Download PDFInfo
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- CN113155771B CN113155771B CN202110311577.4A CN202110311577A CN113155771B CN 113155771 B CN113155771 B CN 113155771B CN 202110311577 A CN202110311577 A CN 202110311577A CN 113155771 B CN113155771 B CN 113155771B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 238000007789 sealing Methods 0.000 claims abstract description 69
- 238000001514 detection method Methods 0.000 claims abstract description 42
- 238000000034 method Methods 0.000 claims description 13
- 239000000523 sample Substances 0.000 claims description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 8
- 239000004809 Teflon Substances 0.000 claims description 4
- 229920006362 Teflon® Polymers 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- 239000012780 transparent material Substances 0.000 claims description 4
- 239000011247 coating layer Substances 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 27
- 230000002262 irrigation Effects 0.000 abstract description 4
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- 239000011248 coating agent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000003337 fertilizer Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3554—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for determining moisture content
- G01N21/3559—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for determining moisture content in sheets, e.g. in paper
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3563—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing solids; Preparation of samples therefor
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Abstract
The invention discloses a split type rapid and accurate blade water potential measuring device which comprises a blade chamber and a detection box, wherein the blade chamber is provided with a water inlet and a water outlet; the leaf chamber is embedded in the top of the side surface of the detection box; the leaf chamber comprises a chamber body, a chamber cover, a sealing ring, a sealing gasket, a right-angle reflector and a sealing plate; the chamber body is of a cubic structure; one side surface of the chamber body is bent outwards to form a bevel surface; two opposite side surfaces of the right-angle reflector are respectively fixedly connected with two opposite side surfaces of the inner wall of the chamber body; the middle part of the chamber body is provided with a sealing sliding chute; one end of the sealing plate penetrates through the bevel face and is in sliding fit with the sealing sliding groove; the top surface of the chamber body is fixedly connected with a sealing ring; the invention can be used for measuring the leaf water potential in a lossless, in-situ and rapid manner, has the advantages of portability, rapidness, accuracy and nondestructive measurement of the plant leaf water potential, provides a technical index for accurate irrigation, and has the advantages of low cost, long service life, convenient operation and the like; the device is used for quickly and conveniently measuring the water potential of the leaves in a laboratory or in the field.
Description
Technical Field
The invention relates to the technical field of plant detection, in particular to a split type rapid and accurate blade water potential measuring device.
Background
The leaf water potential is the driving force of liquid water flowing in the plant body, is an important index for judging the water shortage of the plant and measuring the drought resistance of the plant, and is an important parameter for researching plant water physiology, agricultural water-saving irrigation, ecology and other subjects. The method has important guiding significance for water-saving irrigation and accurate irrigation, realizes the coupling of water and fertilizer and promotes the efficient utilization of the fertilizer, and has general significance for researching the relationship between the water content of plants and the ecological environment, specifying planting planning and adjusting the industrial structure of agricultural structures.
The water potential of the blade can be measured by various methods, and the measurement is usually carried out by a small liquid flow method, mass-wall separation, a pressure chamber, a thermocouple hygrothermograph, a dew point water potential meter and the like in a laboratory. The measurement is destructive sampling, the measurement speed is low, the price of instruments and equipment is high, the operation technical requirement is high, the carrying is inconvenient, and the flux is not high, so that the method cannot be effectively used in field production or scientific research. Therefore, the method for measuring the water potential of the plant leaves by adopting a simple, convenient, rapid, efficient and accurate method is an urgent problem to be solved.
Disclosure of Invention
The invention aims to provide a split type water potential measuring device, which is used for solving the problems in the prior art, can realize the purpose of solving the problems of accuracy and rapidness in measurement by using a non-dispersive infrared (NDIR) detector, and solves the problem of long balancing time required by measurement by using a detachable leaf chamber method; and the measurement process has no technical requirements on operators, and the data is accurate and reliable.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a split type rapid and accurate blade water potential measuring device which comprises a blade chamber and a detection box, wherein the blade chamber is provided with a water inlet and a water outlet; the leaf chamber is embedded at the top of the side surface of the detection box;
the leaf chamber comprises a chamber body, a chamber cover, a sealing ring, a sealing gasket, a right-angle reflector and a sealing plate; the chamber body is of a cubic structure; one side surface of the chamber body is bent outwards to form a bevel surface; two opposite side surfaces of the right-angle reflector are fixedly connected with two opposite side surfaces of the inner wall of the chamber body respectively; the middle part of the chamber body is provided with a sealing sliding chute; one end of the sealing plate penetrates through the bevel face and is in sliding fit with the sealing sliding groove; the bevel face intersects with the top face of the sealing plate; the top surface of the chamber body is fixedly connected with the sealing ring; the side surface opposite to the bevel surface is hinged with one end of the chamber cover; the other end of the chamber cover is detachably connected with the chamber body; the sealing gasket is fixedly arranged on one side surface of the chamber cover facing the inner cavity of the chamber body; the bottom surface of the sealing gasket is contacted with the top surface of the sealing ring.
Preferably, a side face of the leaf chamber is a folding face, so that the situation that the leaf chamber is reversely arranged is avoided, the leaf chamber can be accurately and stably arranged in the detection box, and the detection efficiency is improved.
Preferably, closing plate and sealed spout slip adaptation have realized that the closing plate has realized that the secondary is airtight to some spaces of locellus, can close the closing plate after accomplishing balance, take off locellus and protect the locellus interior gaseous environment that waits, realize blade nondestructive measurement.
Preferably, one end of the chamber cover is hinged to the chamber body, a sealing gasket is fixedly mounted on the inner side of the chamber cover, the body to be tested can be clamped by the sealing gasket and the sealing ring, and an experiment is carried out in a sealed environment.
The right-angle reflector is arranged at one end, close to the bevel face, in the chamber body; the side surface of the chamber body opposite to the bevel surface is made of transparent materials, and the other side surfaces of the chamber body and the chamber cover are made of opaque materials.
Preferably, the side surface of the leaf chamber is made of transparent material, so that light transmission and sealing conditions can be provided for later instrument detection.
Preferably, the right-angle reflector is arranged in a sealed area formed by the sealing plate and the leaf chamber, and provides a preparation condition for data detection.
The inner wall of the chamber body, the sealing plate, the sealing ring and the sealing gasket are all integrally coated with moisture-absorption-preventing nickel teflon coatings.
Preferably, all parts in contact with the inner cavity of the leaf chamber need to be coated with a nickel teflon coating, so that the influence of material moisture absorption on the later detection result is avoided.
The detection box comprises a mainframe box, a supporting plate, a display control device and a detection instrument;
a blade chamber hole is formed in the top of the side face of the main case; the leaf chamber hole is matched with the chamber body in size; the lower edge of the leaf chamber hole is horizontally provided with the supporting plate; the top surface of the supporting plate is provided with a plurality of through hole; the side surface of the supporting plate is fixedly connected with the inner wall of the mainframe box; the display control device is embedded in the middle of the side surface of the mainframe box; the detection instrument is fixedly arranged in the middle of the inner wall of the mainframe box; the detection instrument is electrically connected with the display control device.
Preferably, set up the layer board and can support the leaf room of inserting, avoid the leaf room to rock in the detection case inside.
Preferably, the through hole can facilitate the connection of each electrical component in the detection box.
The display control device comprises a display, a keyboard and a singlechip; the display and the keyboard are embedded in the middle of the same side face of the main case; the single chip microcomputer is fixedly arranged on the side surface of the key pad; the display and the keyboard are electrically connected with the single chip microcomputer.
The detection instrument comprises a non-dispersive infrared detector and a thermometer; the thermometer is fixedly arranged on the bottom surface of the supporting plate; the thermometer is provided with two probes, wherein one probe sequentially penetrates through the supporting plate and the side wall of the chamber body and is flush with the side wall of the chamber body; the other probe is arranged in the main case, and the non-dispersive infrared detector is fixedly arranged at the top of the inner wall of the main case and is arranged on one side of the transparent side face of the chamber body; the non-dispersive infrared detector and the thermometer are both electrically connected with the singlechip.
Preferably, a non-dispersive infrared detector (emitter and detector are on the same side, and signal is transmitted by emitter and returned to the same side by right-angle reflector for receiving by detector) is arranged on the top of the main cabinet, and the transmitting end of the non-dispersive infrared detector is opposite to the transparent side of the chamber body for detection.
Preferably, the thermometer detects the detection box and the leaf chamber respectively, and provides accurate basic data for water potential determination.
The detection box further comprises a multi-purpose port; the multipurpose port is embedded in the bottom of the side face of the mainframe box and is electrically connected with the single chip microcomputer.
The leaf chamber also comprises a strong magnetic lock catch; the strong magnetic lock catch is fixedly arranged on the top of the inner wall of the chamber body; the chamber cover is detachably connected with the chamber body through the strong magnetic lock catch.
Preferably, set up the leaf indoor wall and set up the strong magnetism hasp and can realize the opening and shutting of chamber lid and the room body, make things convenient for the collection of experimental data.
A distance sensor is embedded in the top surface of the supporting plate; the distance sensor is electrically connected with the single chip microcomputer; the distance sensor is arranged below the bottom surface of the chamber body.
And one end of the sealing plate, which is close to the transparent side surface of the chamber body, is also fixedly provided with an opening and closing handle.
Preferably, the sealing plate can be conveniently opened and closed by arranging the opening and closing handle, and the sealing plate can be prevented from being separated from the chamber body.
The invention discloses the following technical effects:
the invention provides a water potential measuring device, which solves the problems of accurate and quick measurement by using a non-dispersive infrared (NDIR) detector, solves the problem of long balancing time required by measurement by using a detachable leaf chamber method, simultaneously improves the measurement flux, has no technical requirements on operators in the measurement process, has accurate and reliable data, and has the advantages of convenience in carrying, low energy consumption, long service life, convenience in operation and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
Fig. 1 is a front view of the detection box after being opened.
FIG. 2 is a schematic side view of a leaf chamber.
FIG. 3 is a schematic side view of the chamber body.
FIG. 4 is a schematic side view of the detection box as a whole.
Fig. 5 is a schematic diagram of a non-dispersive infrared detector detection.
The device comprises a chamber body-11, a chamber cover-12, a sealing ring-13, a sealing gasket-14, a right-angle reflector-15, a sealing plate-16, a strong magnetic lock catch-17, a main case-21, a supporting plate-22, a display control device-23, a display-231, a key board-232, a single chip microcomputer-233, a detection instrument-24, a non-dispersive infrared detector-241, a thermometer-242 and a multipurpose port-25.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The invention provides a split type rapid and accurate blade water potential measuring device which comprises a blade chamber and a detection box, wherein the blade chamber is provided with a water inlet and a water outlet; the leaf chamber is embedded at the top of the side surface of the detection box;
the leaf chamber comprises a chamber body 11, a chamber cover 12, a sealing ring 13, a sealing gasket 14, a right-angle reflector 15 and a sealing plate 16; the chamber body 11 is of a cubic structure; one side surface of the chamber body 11 is bent outwards to form a bevel surface; two opposite side surfaces of the right-angle reflector 15 are respectively fixedly connected with two opposite side surfaces of the inner wall of the chamber body 11; the middle part of the chamber body 11 is provided with a sealing sliding chute; one end of the sealing plate 16 penetrates through the bevel face and is in sliding fit with the sealing sliding groove; the bevel face intersects the top face of the seal plate 16; the top surface of the chamber body 11 is fixedly connected with a sealing ring 13; the side surface opposite to the bevel surface is hinged with one end of the chamber cover 12; the other end of the chamber cover 12 is detachably connected with the chamber body 11; a sealing gasket 14 is fixedly arranged on one side surface of the chamber cover 12 facing the inner cavity of the chamber body 11; the bottom surface of the gasket 14 is in contact with the top surface of the gasket 13.
The right-angle reflector 15 is arranged at one end, close to the bevel face, in the chamber body 11; the side of the chamber body 11 opposite to the bevel is made of a transparent material, and the other sides of the chamber body 11 and the chamber lid 12 are made of opaque materials.
The inner wall of the chamber body 11, the sealing plate 16, the sealing ring 13 and the sealing gasket 14 are all coated with a moisture absorption preventing nickel teflon coating.
The detection box comprises a main case 21, a supporting plate 22, a display control device 23 and a detection instrument 24;
the top of the side surface of the main case 21 is provided with a blade chamber hole; the size of the blade chamber hole is matched with that of the chamber body 11; the lower edge of the leaf chamber hole is horizontally provided with a supporting plate 22; the top surface of the supporting plate 22 is provided with a plurality of through hole; the side surface of the supporting plate 22 is fixedly connected with the inner wall of the main case 21; the display control device 23 is embedded in the middle of the side surface of the main case 21; the detecting instrument 24 is fixedly arranged in the middle of the inner wall of the mainframe box 21; the detecting instrument 24 is electrically connected with the display and control device 23.
The display control device 23 comprises a display 231, a keyboard 232 and a singlechip 233; the display 231 and the keyboard 232 are embedded in the middle of the same side of the main case 21; the single chip microcomputer 233 is fixedly arranged on the side surface of the key pad 232; the display 231 and the keyboard 232 are electrically connected with the single chip microcomputer 233.
The detection instrument 24 includes a non-dispersive infrared detector 241 and a thermometer 242; the thermometer 242 is fixedly arranged on the bottom surface of the supporting plate 22; the thermometer 242 is provided with two probes, wherein one probe sequentially penetrates through the supporting plate 22 and the side wall of the chamber body 11 and is flush with the side wall of the chamber body 11; the other probe is arranged in the main case 21, and the non-dispersive infrared detector 241 is fixedly arranged at the top of the inner wall of the main case 21 and arranged at one side of the transparent side surface of the chamber body 11; the non-dispersive infrared detector 241 and the thermometer 242 are both electrically connected with the single chip microcomputer 233.
The detection box also includes a multi-purpose port 25; the multi-purpose port 25 is embedded in the bottom of the side surface of the main cabinet 21 and is electrically connected with the single chip microcomputer 233.
The leaf chamber also comprises a strong magnetic lock catch 17; the strong magnetic lock catch 17 is fixedly arranged at the top of the inner wall of the chamber body 11; the chamber cover 12 is detachably connected with the chamber body 11 through a strong magnetic lock 17.
A distance sensor is embedded on the top surface of the supporting plate 22; the distance sensor is electrically connected with the single chip microcomputer 233; the distance sensor is disposed below the bottom surface of the chamber body 11.
An opening and closing handle is fixedly arranged at one end of the sealing plate 16 close to the transparent side surface of the chamber body 11.
In one embodiment of the present invention, the detection steps and detection principles of the present invention are as follows:
step one, starting a detection box in an environment of 20-30 ℃, and starting measurement after the detection box is started and preheated for 5-10 minutes;
step two, opening a sealing plate 16 in the leaf chamber, opening a chamber cover 12 to enable the back of the leaf to face the leaf chamber, utilizing a sealing ring 13 and a sealing gasket 14 to realize sealing clamping on the leaf, and standing and balancing for 30 minutes;
step three, after the balance of the leaf chamber on the blade is finished, the leaf chamber is closed by using a sealing plate 16, and the chamber cover 12 is opened to take down the leaf chamber;
step four, correctly installing the leaf chamber in the leaf chamber hole and installing the leaf chamber in place;
fifthly, the temperature of the leaf chamber is not higher than the temperature of the host, so that the dew condensation in the leaf chamber is prevented from influencing the measurement result;
and step six, reading the measurement result of the non-dispersive infrared detector 241 collected by the single chip microcomputer 233 from the display 231.
The measurement principle is as follows:
1. the water vapor has obvious absorption on far-red light, small interference under the wavelength of 2.59 mu m and high absorption, accords with the Lambert-beer law, and determines the accurate water vapor concentration in the leaf chamber according to the non-dispersive infrared detector 241;
2. the measurement is carried out by taking a built-in light path without water vapor as a reference, and a right-angle reflector 15 arranged in a leaf chamber is adopted to improve the light path and increase the measurement accuracy;
3. the high-precision thermometer 242 obtains the temperature of the air in the leaf chamber, obtains the water content of the saturated air under the temperature condition according to the temperature, and calculates the relative humidity of the air at the moment;
4. the blade water potential is obtained according to the air water potential calculation formula psi a =4.6248 × 105T lnR (Pa), wherein T is absolute temperature and R is relative humidity.
The measurement precision is determined by the precision of the non-dispersive infrared detector 241, the measurement range of the water vapor concentration is 0-60mmol/mol, the accuracy is better than 1.5 percent of the reading value, when the water vapor concentration is 10 mmol/mol, the RMS is less than or equal to 0.01mmol/mol, under the environment of 25 ℃, the precision is up to 0.02MPa, and the measurement result is better than the dew point water potential meter measuring result by 0.05MPa;
the device is suitable for the leaf of the plant, the thickness of the leaf is less than 1mm, and the length of the leaf is more than 5mm.
In another embodiment of the present invention, the multi-purpose port 25 employs a Micro USB interface for transferring data.
In another embodiment of the present invention, the keypad 232 is provided with a power-on button, a measurement button, a save button, a review button, and a delete button; the display 231 is used to display the instrument status and measurement results.
The invention discloses the following technical effects:
the invention provides a water potential measuring device, which solves the problems of accurate and quick measurement by using a non-dispersive infrared (NDIR) detector, solves the problem of long balancing time required by measurement by using a detachable leaf chamber method, simultaneously improves the measurement flux, has no technical requirements on operators in the measurement process, has accurate and reliable data, and has the advantages of convenience in carrying, low energy consumption, long service life, convenience in operation and the like.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.
Claims (8)
1. A split type rapid and accurate blade water potential measuring device is characterized by comprising a blade chamber and a detection box; the leaf chamber is embedded in the top of the side surface of the detection box;
the leaf chamber comprises a chamber body (11), a chamber cover (12), a sealing ring (13), a sealing gasket (14), a right-angle reflector (15) and a sealing plate (16); the chamber body (11) is of a cubic structure; one side surface of the chamber body (11) is bent outwards to form a bevel surface; two opposite side surfaces of the right-angle reflector (15) are respectively fixedly connected with two opposite side surfaces of the inner wall of the chamber body (11); the middle part of the chamber body (11) is provided with a sealing sliding groove; one end of the sealing plate (16) penetrates through the bevel face and is in sliding fit with the sealing sliding groove; the bevel face intersects with the top face of the sealing plate (16); the top surface of the chamber body (11) is fixedly connected with the sealing ring (13); the side surface opposite to the bevel surface is hinged with one end of the chamber cover (12); the other end of the chamber cover (12) is detachably connected with the chamber body (11); the sealing gasket (14) is fixedly arranged on one side surface of the chamber cover (12) facing the inner cavity of the chamber body (11); the bottom surface of the sealing gasket (14) is contacted with the top surface of the sealing ring (13);
the detection box comprises a main case (21), a supporting plate (22), a display control device (23) and a detection instrument (24); the top of the side surface of the main case (21) is provided with a blade chamber hole; the size of the leaf chamber hole is matched with that of the chamber body (11); the lower edge of the leaf chamber hole is horizontally provided with the supporting plate (22); the top surface of the supporting plate (22) is provided with a plurality of through hole; the side surface of the supporting plate (22) is fixedly connected with the inner wall of the mainframe box (21); the display control device (23) is embedded in the middle of the side face of the main case (21); the detection instrument (24) is fixedly arranged in the middle of the inner wall of the main case (21); the detection instrument (24) is electrically connected with the display control device (23);
the detection instrument (24) comprises a non-dispersive infrared detector (241) and a thermometer (242); the thermometer (242) is fixedly arranged on the bottom surface of the supporting plate (22); the thermometer (242) is provided with two probes, wherein one probe sequentially penetrates through the supporting plate (22) and the side wall of the chamber body (11) and is flush with the side wall of the chamber body (11); the other probe is arranged in the main case (21), and the non-dispersive infrared detector (241) is fixedly arranged at the top of the inner wall of the main case (21) and arranged on one side of the transparent side surface of the chamber body (11); the non-dispersive infrared detector (241) and the thermometer (242) are both electrically connected with the singlechip (233);
the use method of the measuring device comprises the following steps:
opening a sealing plate (16) in the blade chamber, opening a chamber cover (12) to enable the back of the blade to face the blade chamber, realizing sealing clamping on the blade by using a sealing ring (13) and a sealing gasket (14), and standing and balancing for 30 minutes;
after the balance of the leaf chamber on the blade is finished, the leaf chamber is closed by using a sealing plate (16), and the cover (12) of the chamber is opened to take down the leaf chamber;
and (4) correctly installing the leaf chamber in the leaf chamber hole, installing the leaf chamber in place and detecting.
2. The split type rapid and accurate blade water potential measuring device according to claim 1, wherein: the right-angle reflector (15) is arranged at one end, close to the bevel face, in the chamber body (11); the side surface of the chamber body (11) opposite to the bevel surface is made of transparent materials, and the other side surfaces of the chamber body (11) and the chamber cover (12) are made of opaque materials.
3. The split type rapid and accurate blade water potential measuring device according to claim 1, wherein: the inner wall of the chamber body (11), the sealing plate (16), the sealing ring (13) and the sealing gasket (14) are coated with moisture absorption-proof nickel Teflon coating layers.
4. The split type rapid and accurate blade water potential measuring device according to claim 1, wherein: the display control device (23) comprises a display (231), a keyboard (232) and a singlechip (233); the display (231) and the key board (232) are embedded in the middle of the same side face of the main case (21); the single chip microcomputer (233) is fixedly arranged on the side surface of the key board (232); the display (231) and the key board (232) are electrically connected with the single chip microcomputer (233).
5. The split type rapid and accurate blade water potential measuring device according to claim 4, wherein: the detection box further comprises a multi-purpose port (25); the multipurpose port (25) is embedded in the bottom of the side face of the main case (21) and is electrically connected with the single chip microcomputer (233).
6. The split type rapid and accurate blade water potential measuring device according to claim 1, wherein: the leaf chamber also comprises a strong magnetic lock catch (17); the strong magnetic lock catch (17) is fixedly arranged on the top of the inner wall of the chamber body (11); the chamber cover (12) is detachably connected with the chamber body (11) through the strong magnetic lock catch (17).
7. The split type rapid and accurate blade water potential measuring device according to claim 4, wherein: a distance sensor is embedded in the top surface of the supporting plate (22); the distance sensor is electrically connected with the single chip microcomputer (233); the distance sensor is arranged below the bottom surface of the chamber body (11).
8. The split type rapid and accurate blade water potential measuring device according to claim 1, wherein: an opening and closing handle is fixedly arranged at one end, close to the transparent side face of the chamber body (11), of the sealing plate (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110311577.4A CN113155771B (en) | 2021-03-24 | 2021-03-24 | Split type quick accurate blade water potential survey device |
Applications Claiming Priority (1)
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