CN203069174U - Handheld type electronic measuring instrument for azimuth angle of plant leaf in movement - Google Patents
Handheld type electronic measuring instrument for azimuth angle of plant leaf in movement Download PDFInfo
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- CN203069174U CN203069174U CN 201320070792 CN201320070792U CN203069174U CN 203069174 U CN203069174 U CN 203069174U CN 201320070792 CN201320070792 CN 201320070792 CN 201320070792 U CN201320070792 U CN 201320070792U CN 203069174 U CN203069174 U CN 203069174U
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Abstract
The utility model relates to an electronic measuring instrument for an azimuth angle of a plant leaf in movement. The electronic measuring instrument can be used for measuring the variation of the movement angle of the plant leaf in heliotropism movement in the heliotropism movement of the plant leaf. The electronic measuring instrument for the azimuth angle of the plant leaf in the movement is that a power pack, a data acquiring device, a display device, a power switch, a master controller and an interconnecting link are mainly arranged on a rack main body; the data acquiring device structurally comprises a suspension angle slide rail and an azimuth angle slide rail which are arranged below the rack main body and are same in structure; both the suspension angle slide rail and the azimuth angle slide rail comprise lower cushion boards and upper baffle plates, wherein the lower cushion boards and the upper baffle plates are all in shapes of semicircular narrow strips; two slide rail strips which are same in size are arranged on the lower cushion boards; resistance wires are coiled on the two slide rail strips; and a metal ball is placed on the two slide rail strips coiled with the resistance wires. By adopting the handheld type electronic measuring instrument for the azimuth angle of the plant leaf in the movement, the azimuth angle and a suspension angle of the plant leaf can be relatively precisely measured at the same time; the automation of the handheld type electronic measuring instrument can be realized during using, and the time and the manpower are saved; and the handheld type electronic measuring instrument is easy to operate, practical and convenient.
Description
Technical field
The utility model relate to a kind of for plant leaf blade in heliotropism motion, can measure the plant leaf blade motion orientation angles electronic gauge that the blade movement angle changes.
Background technology
Higher plant can not move freely whole position as animal, but the organ of plant can produce movement in the space, with the variation that conforms, and the motion of Here it is plant.When plant is subjected to the environmental stimuli of single direction and the directed movement that causes, be called tropic movement.And phototropism is exactly one of motion main in the plant tropic movement.The heliotropism motion is divided into two types again, and a kind of is the diaheliotropism motion, and blade movement always makes the leaf plane vertical with the incident ray of the sun, to catch more luminous energy, reaches photosynthetic maximization as far as possible; Another kind is the motion of inclined to one side heliotropism, and blade movement always makes the leaf plane parallel with the incident ray of the sun, catch with minimizing luminous energy, thereby the light of evading under the environment such as high temperature is burnt.Studies show that plant leaf blade heliotropism motion can influence the photosensitizing substance production of plant and grow, existence procreation and the development of plant had great importance.
The physiological ecological meaning of research plant leaf blade motion at first will be measured blade movement itself, i.e. blade conversion movement angle how spatially.Forefathers to the heliotropism of plant leaf blade motion carried out big quantity research, how to comprise that motion is measured to the blade heliotropism, i.e. blade translation-angle how is spatially just measured position angle, deflection and the suspension angle of blade.Described position angle is the angle between blade tip end and the box compass north arrow (north orientation).Place on the leaf plane with hand-held box compass, adjust box compass and make 0 ° of pointed, blade tip end this moment reading of indication on compass is the position angle; Described deflection is to be axle with arteries and veins in the leaf, blade steering east or western angle.Hang a little perpendicular as reading index with semicircular protractor from diameter center (center of circle), place arteries and veins vertical direction in semicircular protractor plane and the leaf, make the diametral plane (semi circular surface) of semicircular protractor keep being close to the leaf plane, this moment, the reading of perpendicular was exactly deflection; Described suspension angle is the angle on arteries and veins vertical movement leaving water plane in the leaf.With the parallel Ye Zhongmai that is close to of the diameter crossbeam of semicircular protractor, this moment, the reading of pedal line hung the angle exactly.
The measuring method of both at home and abroad the plant leaf blade heliotropism being moved mainly contains orientation angles determination method, sciagraphy, pinpoint photograph method etc. at present.
The determination of azimuth method is to use protractor, and pedal line and box compass are measured the position angle of blade, and deflection and suspension angle just can position the locus of blade by these three angles, and then describe the motion state of blade.It is simple, quick and be suitable for characteristics such as operation that this method has relative determination, is to use wider a kind of assay method.Sciagraphy is to utilize the projection of blade to describe the state of blade movement.Below blade, place a flat board perpendicular to sunshine, utilize the projected area of blade on this plane and the ratio of the real area of blade, obtain blade face normal and sunray angulation, as the real area of supposing blade is A, with the rectangular plane of sunray blade projected area be B, then blade face normal and sunray angulation i can be expressed as cosi=B/A.Represent that when cosi equals 1 blade is vertical with sunray, it is maximum that the light intensity of acceptance reaches; Parallel with sunray near 0 expression blade as cosi, it is minimum that the light intensity of acceptance reaches.The pinpoint photograph method is different with two kinds of above-mentioned mensurations, and it is variation of taking blade with fixing camera in every interval 1-2 hour, and catching visually, how blade carries out the method that heliotropism is moved.
Though more than three kinds of methods all can describe out plant leaf blade and how to carry out the heliotropism motion, every kind of method all exists relative merits separately in the practice process.Though how the orientation angles determination method can spatially move to blade analyze, only be fit to the comparatively simple plant of blade movement mode, such as cotton; To mode of motion the mensuration of complicated plant leaf blade seem unable to do what one wishes, such as beans.This method is bigger at the mensuration time error, and can't describe the light state that is subjected to of blade.Sciagraphy can be described the light state that is subjected to of blade, and what of light intensity very direct reflection blade accept, but this method can't analyze blade on dimensional orientation, does not reflect blade motion process spatially, and complicated operation in use.The pinpoint photograph method can reflect state and the change procedure of blade heliotropism motion very intuitively, but mode of motion that can't the quantitative description blade and be subjected to light state.
Measure in order better the plant leaf blade heliotropism to be moved, the researcher is also constantly improving blade movement mensuration mode.Such as in the sixties in 20th century, by position angle and suspension angle and sun altitude and zenith angle calculating blade face normal and the sunray angulation of measuring blade, used formula is, α l is the blade position angle in cosi=cos β * cos z+sin β * sin z*cos (α s-α l) formula, z is solar zenith angle, β is that blade hangs the angle, and α s is solar azimuth.Find out that thus this method is that determination of azimuth method and sciagraphy are carried out effective combination, can spatially how to move to blade on the one hand and analyze, can describe the light state that is subjected to of blade on the other hand, but this method can't solve still to the mensuration of mode of motion than complicated plant leaf blade.
In order to solve the mensuration of complicated plant leaf blade of mode of motion, a visual evaluation system of blade movement (visual scoring system) just appearred until 2004, this method is by taking the plant leaf blade on certain area, by the evaluation result in assessment process acquisition numeral 1 to 5 this scope, 1 represents blade becomes vertical, 5 represent blade becomes horizontal, and then obtains the information of blade movement.It is can only qualitative shortcoming and more convenient operation that can not be quantitative quick that this method has remedied the pinpoint photograph method, but this evaluation system is the result who all blades in certain area is carried out comprehensive evaluation, obliterated the difference between the blade movement individuality, be easy to occur the situation that " positive and negative " offsets, such as the sun in the morning in the Orient the time, orientation blade eastwards presents hang, and blade westwards presents the act state, and the last the possibility of result of estimating is that blade is the level of state.
Though the orientation angles determination method exists a lot of not enough, because its advantage such as simple and quick is still the most general measuring method of present use.
Existing plant leaf blade motion orientation angles measuring instrument, be ZL201010256428.4 as China Patent No., name is called: plant leaf blade motion orientation angles measuring instrument, by being integrated, the protractor index dial of different angles manufactures and designs, the surveying instrument ultimate principle is, the self gravitation effect of utilization protractor has replaced the function of traditional pedal line cleverly, reach the purpose that to measure deflection simultaneously and hang the angle, distinctive electromagnetic fixing device can make the indicating positions moment of pointer on index dial fix, make the mensuration of experiment and reading more fast with accurate of data, realized the simplified measurement step, be easy to characteristics such as field operation, but still there are a lot of deficiencies in the design of this experimental apparatus, hangs the sliding pin design at angle and the reading device of data etc. as mensuration, measurement of angle and read the probability that increases error when all having increased measuring significantly, and reading of data is relatively loaded down with trivial details, and big to battery consumption, experimental cost is high.
Based on above analysis as can be seen, though the researcher is improving the assay method of existing blade heliotropism motion, but it is slowly progressive, from sixties to 2004 in 20th century year, reaching more than 40 year just has a new method to occur, and does not have the instrument of the blade heliotropism motion mensuration of commercially producing.Therefore, by research of the present utility model and enforcement, on the basis of using for reference various assay method advantages, improve the assay method of existing blade heliotropism motion, improve and optimization plant leaf blade orientation angles measuring instrument, add digital display device and data storage device, realize intellectuality and the robotization of instrument, accomplish that measurement result is more accurate and convenient to operation; In this simultaneously, carry out the correlative study work of plant leaf blade heliotropism motion, and use The present computer technology that the three-dimensional visualization simulation is carried out in the heliotropism motion of plant leaf blade, for carrying out and advancing plant leaf blade heliotropism motion study to have great importance.
Summary of the invention
The purpose of this utility model is to provide a kind of and can accurately measures the deflection of plant leaf blade simultaneously and hang the angle, in use can realize robotization, time saving and energy saving, easy operating and practical and convenient hand-held plant leaf blade motion orientation angles electronic gauge.
The utility model discloses a kind of hand-held plant leaf blade motion orientation angles electronic gauge, it is characterized in that being provided with a frame main body 5, on described frame main body 5, mainly be provided with power pack 9, data collector 11, display 6, power switch, master controller 8 and connection line, the structure of described data collector 11 comprises the suspension angle slide rail 21 of being located at frame main body 5 belows, deflection slide rail 20, described suspension angle slide rail 21 is identical with the structure of deflection slide rail 20, the lower bolster 17 that all comprises semi-circular narrow strip, the overhead gage 16 of semi-circular narrow strip, described lower bolster 17 is provided with the identical slide rail bar 19 of two strips, article two, all be wound with resistance wire 15 on the slide rail bar 19, above being wound with two slide rail bars 19 of resistance wire 15, be placed with a Metal Ball 18, above-mentioned Metal Ball 18 contacts with resistance wire 15, described overhead gage 16 is located at Metal Ball 18 tops, gapped with Metal Ball 18 surfaces, play the barrier effect; Described frame main body 5 the place aheads are provided with on-gauge plate, and described on-gauge plate is horizontally disposed with;
In said structure, can constitute many circuit loops by connection line, but wherein one, the current return I 22 that forms by connection line as shown in Figure 7, in described current return I 22, described suspension angle slide rail 21 is connected in series with deflection slide rail 20, slide rail bar 19 connection circuit positive poles wherein on described suspension angle slide rail 21, another slide rail bar 19 connection circuit negative poles, current direction is to flow into from connecing anodal slide rail bar 19, the Metal Ball of flowing through flows out from another slide rail bar 19 again, and at this moment Metal Ball plays the effect of turning circuit; The circuit connecting relation of described deflection slide rail 20 is identical therewith, that is: slide rail bar 19 connection circuit positive poles wherein on the described deflection slide rail 20, another slide rail bar 19 connection circuit negative poles, current direction is to flow into from connecing anodal slide rail bar 19, the Metal Ball of flowing through, flow out from another slide rail bar 19, at this moment Metal Ball also plays the effect of turning circuit again; The voltage table I 2 that is provided with in parallel respectively on described suspension angle slide rail 21 and deflection slide rail 20, voltage table II 3, this current return I 22 is provided with total current table 4, and this current return I 22 is by power pack 9 power supplies.
Described suspension square ring slide rail 21 can have multiple mode with the link position relation of deflection slide rail 20, can be:
As Fig. 3, Fig. 4, described suspension square ring slide rail 21 varies in size with deflection slide rail 20, hang angle slide rail 21 and deflection slide rail 20 and vertically be " ten " font and intersect installation, the disc of the axis of described suspension angle slide rail 21 formed discs and 20 formation of hard-wired deflection slide rail coincides.
Also can be: as shown in Figure 8, described suspension square ring slide rail 21 varies in size with deflection slide rail 20, described deflection slide rail 20 is positioned at and hangs slide rail 21 peripheries, angle, and with hang angle slide rail 21 and vertically be " T " font and intersect installation, the axis of described suspension angle slide rail 21 formed discs parallels with the disc of hard-wired deflection slide rail 20 formation.
The set on-gauge plate in described frame main body 5 the place aheads is preferably replaced by horizontally disposed circular bubble 1.Described circular bubble is the circular bubble that arrives commonly used of the prior art, is the circular glass container of a sealing, and the inside surface of top cover is a sphere, contains the ether class I liquid I in the container, leaves minute bubbles.A ringlet is carved with in container cap central authorities, and the center of ringlet is the zero point of circular bubble.Zeroaxial sphere normal is the axle of circular bubble, and when the bubble of circular bubble was placed in the middle, the axle of circular bubble was positioned at plumb position.Frame main body 5 the place aheads are provided with circular bubble 1, are in order to find surface level better accurately, for the accuracy of measuring is given security.
The described data collector 11 outer transparent windshield 14 of semisphere that preferably are provided with.The effect of the transparent windshield 14 of semisphere is to prevent that factors such as the touching of next door branches and leaves or wind from exerting an influence to the measuring accuracy that hangs square ring slide rail 21 and deflection slide rail 20.
Hand-held plant leaf blade motion orientation angles electronic gauge basic functional principle described in the utility model is as follows:
With reference to Fig. 7, when measuring, to make the on-gauge plate that is horizontally set on frame main body press close to the blade of plant to greatest extent, make the plane keeping parallelism at plane and the on-gauge plate place at blade place, on-gauge plate is exactly the space angle of required measurement blade along the space angle of longitudinal axis.Treat described suspension angle slide rail, the deflection slide rail is all after the transfixion, it is sagging naturally because of the effect meeting of gravity to hang the angle slide rail, the deflection slide rail is perpendicular with installation plane, connecting box 12 place, the Metal Ball that is provided with on them is rolled with gravity effect lower edge slide rail bar, when it remains static, the length of the resistance wire that two Metal Ball couple together is different, at this moment hang the voltage table I 2 that angle slide rail and deflection slide rail two ends arrange, voltage table II 3 can be measured the magnitude of voltage at two ends respectively, this magnitude of voltage is respectively U1, U2, the total current that the total current table is measured circuit loop I 22 is A, measured numerical signal is sent to master controller, and then master controller can be calculated and be hung angle α and deflection β.
The formula that above-mentioned calculating will be used is:
α=[U1/（I×R1）]?×360°-90°
β=[U2/（I×R2）]?×360°-90°
After the angle numerical evaluation that master controller will hang angle α and deflection β is come out, again this consequential signal is reached display, show from display, the numerical value of can obtaining a result is intuitively like this measured and is got up really to have realized intellectuality.
Compared with prior art, the utility model can be realized disposable plant leaf blade deflection and the suspension angle measured simultaneously, in use can realize robotization, time saving and energy saving, easy operating and practical and convenient, plant leaf blade motion orientation angles electronic gauge provided by the utility model, broken the mindset of original traditional measurement mode, simplified measuring process, use mensuration more accurate, faster, for deflection and the suspension angle of measuring a large amount of crop leafs under the field condition fast provides possibility, to carrying out the influence that different cultivation technique measures move to crop leaf under the field condition, the research of the aspects such as screening of the motion feature of blade and high light efficiency crop germplasm resource is all significant between the different cultivars crop, and this is the physiological ecological intellectuality of advance value thing blade movement further, the further investigation of visual Simulation.
Description of drawings
Fig. 1 is the main TV structure synoptic diagram of the utility model embodiment 1.
Fig. 2 is the structural representation at another visual angle of Fig. 1.
Fig. 3 is the structural representation of data collector among the utility model embodiment 1.
The structural representation that Fig. 4 looks for the right side of Fig. 3.
The structural representation that Fig. 5 concerns for lower bolster, slide rail bar, the Metal Ball position of overlooking among Fig. 3.
Fig. 6 is the perspective view of lower bolster among Fig. 3, slide rail bar, Metal Ball position relation.
Fig. 7 is the principle of work synoptic diagram of the utility model automatic control process in an embodiment.
Fig. 8 is the structural representation of data collector among the utility model embodiment 2.
Shown in the figure: 1 is circular bubble, and 2 is the voltage table I, and 3 is the voltage table II, and 4 is the total current table, 5 is frame main body, and 6 is display, and 7 for measuring power switch, and 8 is master controller, 9 is power pack, and 10 is the display power supply switch, and 11 is data collector, and 12 for installing connecting box, 13 is connecting link, and 14 is windshield, and 15 is resistance wire, and 16 is overhead gage, 17 is lower bolster, and 18 is Metal Ball, and 19 is the slide rail bar, 20 is the deflection slide rail, and 21 for hanging the angle slide rail, and 22 is the current return I.
Embodiment
Embodiment 1:
With reference to Fig. 1-Fig. 7, present embodiment is a kind of hand-held plant leaf blade motion orientation angles electronic gauge, its structure collectivity is made the pistol pattern, be provided with a frame main body 5, rifle body shown in the figure, on described frame main body 5, mainly be provided with power pack 9, data collector 11, display 6, power switch, master controller 8 and connection line, shown in power pack 9 be located in the housing at handle position of pistol, the structure of described data collector 11 comprises the suspension angle slide rail 21 of being located at frame main body 5 belows, deflection slide rail 20, described suspension angle slide rail 21 is identical with the structure of deflection slide rail 20, the lower bolster 17 that all comprises semi-circular narrow strip, the overhead gage 16 of semi-circular narrow strip, described lower bolster 17 is provided with the identical slide rail bar 19 of two strips, article two, all be wound with resistance wire 15 on the slide rail bar 19, above being wound with two slide rail bars 19 of resistance wire 15, be placed with a Metal Ball 18, above-mentioned Metal Ball 18 contacts with resistance wire 15, described overhead gage 16 is located at Metal Ball 18 tops, gapped with Metal Ball 18 surfaces, play the barrier effect; Described frame main body 5 the place aheads are provided with on-gauge plate, and described on-gauge plate is horizontally disposed with;
In said structure, form a current return I 22 by connection line, in described current return I 22, described suspension angle slide rail 21 is connected in series with deflection slide rail 20, slide rail bar 19 connection circuit positive poles wherein on described suspension angle slide rail 21, another slide rail bar 19 connection circuit negative poles, current direction is to flow into from connecing anodal slide rail bar 19, the Metal Ball of flowing through, flow out from another slide rail bar 19 again, the circuit connecting relation of described deflection slide rail 20 is identical therewith, the voltage table I 2 that is provided with in parallel respectively on described suspension angle slide rail 21 and deflection slide rail 20, voltage table II 3, this current return I 22 is provided with total current table 4, and this current return I 22 is by power pack 9 power supplies.Monitor power supply is powered separately by power pack in addition.
Described suspension square ring slide rail 21 varies in size with deflection slide rail 20, hang angle slide rail 21 and deflection slide rail 20 and vertically be " ten " font and intersect installation, the disc of the axis of described suspension angle slide rail 21 formed discs and 20 formation of hard-wired deflection slide rail coincides.
Embodiment 2:
Referring to Fig. 8, compare with embodiment 1, the difference of present embodiment is varying in size of described suspension square ring slide rail 21 and deflection slide rail 20, described deflection slide rail 20 is positioned at and hangs slide rail 21 peripheries, angle, and with hang angle slide rail 21 and vertically be " T " font and intersect installation, described suspension angle slide rail 21 formed discs the axis parallel with the disc of hard-wired deflection slide rail 20 formation.
Embodiment 3:
Compare with embodiment 1, the difference of present embodiment is that the set on-gauge plate in described frame main body 5 the place aheads is preferably replaced by horizontally disposed circular bubble 1.
Embodiment 4:
Compare with embodiment 1, the difference of present embodiment is the described data collector 11 outer transparent windshield 14 of semisphere that are provided with.
Claims (5)
1. hand-held plant leaf blade motion orientation angles electronic gauge, it is characterized in that being provided with a frame main body (5), on described frame main body (5), mainly be provided with power pack (9), data collector (11), display (6), power switch, master controller (8) and connection line, the structure of described data collector (11) comprises the suspension angle slide rail (21) of being located at frame main body (5) below, deflection slide rail (20), described suspension angle slide rail (21) is identical with the structure of deflection slide rail (20), the lower bolster (17) that all comprises semi-circular narrow strip, the overhead gage of semi-circular narrow strip (16), described lower bolster (17) is provided with the identical slide rail bar (19) of two strips, article two, all be wound with resistance wire (15) on the slide rail bar (19), be placed with a Metal Ball (18) in two slide rail bars (19) top that is wound with resistance wire (15), above-mentioned Metal Ball (18) contacts with resistance wire (15), described overhead gage (16) is located at Metal Ball (18) top, gapped with Metal Ball (18) surface, play the barrier effect; Described frame main body (5) the place ahead is provided with on-gauge plate, and described on-gauge plate is horizontally disposed with;
The formed plane of described suspension angle slide rail (21) is horizontal by vertical setting, described suspension angle slide rail (21) both upper ends thereof and frame main body (5) flexibly connect, described deflection slide rail (20) is fixedlyed connected with frame main body (5), and the plane at the formed plane of deflection slide rail (20) and circular bubble (1) place is perpendicular;
In said structure, form a current return I (22) by connection line, in described current return I (22), described suspension angle slide rail (21) is connected in series with deflection slide rail (20), a slide rail bar (19) connection circuit positive pole wherein on described suspension angle slide rail (21), another slide rail bar (19) connection circuit negative pole, current direction is to flow into from connecing anodal slide rail bar (19), the Metal Ball of flowing through, flow out from another slide rail bar (19) again, the circuit connecting relation of described deflection slide rail (20) is identical therewith, that is: a slide rail bar (19) connection circuit positive pole wherein on the described deflection slide rail (20), another slide rail bar (19) connection circuit negative pole, current direction are to flow into from connecing anodal slide rail bar (19), the Metal Ball of flowing through flows out from another slide rail bar (19) again; The voltage table I (2) that is provided with in parallel respectively on described suspension angle slide rail (21) and deflection slide rail (20), voltage table II (3), this current return I (22) is provided with total current table (4), and this current return I (22) is by power pack (9) power supply.
2. hand-held plant leaf blade motion orientation angles electronic gauge as claimed in claim 1, it is characterized in that varying in size of described suspension square ring slide rail (21) and deflection slide rail (20), hang angle slide rail (21) and deflection slide rail (20) and vertically be " ten " font and intersect installation, the disc of the axis of the formed disc of described suspension angle slide rail (21) and hard-wired deflection slide rail (20) formation coincides.
3. hand-held plant leaf blade motion orientation angles electronic gauge as claimed in claim 1, it is characterized in that varying in size of described suspension square ring slide rail (21) and deflection slide rail (20), described deflection slide rail (20) is positioned at and hangs angle slide rail (21) periphery, and with hang angle slide rail (21) and vertically be " T " font and intersect installation, the axis of the formed disc of described suspension angle slide rail (21) parallels with the disc of hard-wired deflection slide rail (20) formation.
4. as claim 1,2 or 3 described hand-held plant leaf blade motion orientation angles electronic gauges, it is characterized in that the set on-gauge plate in described frame main body (5) the place ahead is replaced by horizontally disposed circular bubble (1).
5. as claim 1,2 or 3 described hand-held plant leaf blade motion orientation angles electronic gauges, it is characterized in that the outer transparent windshield of semisphere (14) that is provided with of described data collector (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320070792 CN203069174U (en) | 2013-02-07 | 2013-02-07 | Handheld type electronic measuring instrument for azimuth angle of plant leaf in movement |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320070792 CN203069174U (en) | 2013-02-07 | 2013-02-07 | Handheld type electronic measuring instrument for azimuth angle of plant leaf in movement |
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| Publication Number | Publication Date |
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| CN203069174U true CN203069174U (en) | 2013-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320070792 Expired - Fee Related CN203069174U (en) | 2013-02-07 | 2013-02-07 | Handheld type electronic measuring instrument for azimuth angle of plant leaf in movement |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148834A (en) * | 2013-02-07 | 2013-06-12 | 石河子大学 | Hand-held plant leaf movement azimuth angle electronic measuring instrument |
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2013
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148834A (en) * | 2013-02-07 | 2013-06-12 | 石河子大学 | Hand-held plant leaf movement azimuth angle electronic measuring instrument |
| CN103148834B (en) * | 2013-02-07 | 2015-09-09 | 石河子大学 | Hand-held plant leaf movement azimuth angle electronic gauge |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130717 Termination date: 20170207 |