CN201622119U - Synchronous double-channel blade infrared temperature and photosynthesis determination blade chamber - Google Patents
Synchronous double-channel blade infrared temperature and photosynthesis determination blade chamber Download PDFInfo
- Publication number
- CN201622119U CN201622119U CN200920270896XU CN200920270896U CN201622119U CN 201622119 U CN201622119 U CN 201622119U CN 200920270896X U CN200920270896X U CN 200920270896XU CN 200920270896 U CN200920270896 U CN 200920270896U CN 201622119 U CN201622119 U CN 201622119U
- Authority
- CN
- China
- Prior art keywords
- chamber
- blade
- temperature
- photosynthesis
- infrared thermometer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Radiation Pyrometers (AREA)
Abstract
A synchronous double-channel blade infrared temperature and photosynthesis determination blade chamber consists of a double-channel infrared thermometer and a photosynthetic assimilation chamber. The double-channel infrared thermometer consists of miniature sensing heads, an electrical box and a cable wire; the photosynthetic assimilation chamber consists of an upper cover and a lower chamber; the upper cover is made of organic glass with the thickness of 2 mm; a window taking 8-um front-closed circular optical filter with the diameter of 10 mm as the infrared thermometer is embedded on the cover; and a photosynthetically active radiation sensor and a blade temperature thermocouple are respectively mounted in the upper cover and the lower chamber. The two sensing heads of the infrared thermometer are respectively placed at the inclined upper part of a corner of the upper cover of the blade chamber and in the lower chamber. The device is connected with a LI-COR6400 to synchronously determine the infrared radiation temperature on the upper surface and the lower surface of the blade and the photosynthetic rate of the blade, has automatic data record, is convenient and quick and provides scientific basis for the research on the impact mechanism of vegetation radiation temperature to photosynthesis and a model thereof.
Description
Affiliated technical field:
The utility model relates to a kind of binary channels blade infrared temperature and photosynthesis is measured the leaf chamber synchronously.This leaf chamber connects the portable photosynthetic apparatus of LI-COR6400, according to the indoor CO of leaf
2, H
2The concentration change of O is measured the carbon water flux of plant leaf, the indoor micro sensing head that the infrared thermometer that connects notebook computer is installed of leaf, when measuring blade carbon water flux, measure and write down automatically the infrared radiation temperature of vegetation blade upper and lower surface synchronously, for the radiation temperature of blade photosyntheticly influences mechanism and model investigation provides scientific basis to it, improve the precision of NPP model prediction, belong to the biological study instrument field.
Background technology:
Along with the development of remote sensing technology, the carbon cycle remote sensing appraising pattern with remote sensing by the general data source is accepted by international community, has become the important method of carbon current circulating research based on the carbon cycle research of remote sensing.
Utilize remote sensing to estimate that clean primary productive force generally adopts Monteith (1972,1977) the light-use pattern of Ti Chuing: i.e. the photosynthetically active radiation " IPAR " (Intercepted Photosynthetically Active Radiation) of vegetation absorption multiply by the efficiency of light energy utilization ε of certain vegetation, that is:
NPP＝IPAR×ε
Here IPAR is the product of the ratio " FPAR " (Frection of Photosynthetically Active Radiation absorbed by thecanopy) of the photosynthetically active radiation that absorbs of face of land photosynthetically active radiation " PAR " (Photosynthetically Active Radiation) and vegetation canopy, that is: IPAR=PAR * FPAR.ε is the maximum efficiency of light energy utilization ε of the ecosystem
0With CO in temperature, moisture and the atmosphere
2The product of photosynthesis restriction factors such as concentration, promptly
ε＝ε
0×f(T)×f(W)×f(CO
2)
ε in the formula
0Be the maximum efficiency of light energy utilization under the suitable environment, f (T), f (W) and f (CO
2) be respectively temperature, moisture and the Atmospheric CO in the photosynthesis
2The restricted function of concentration.
At present, in the NPP model of remote sensing, temperature is a temperature to the T in the computation model of photosynthesis restriction, is based on the temperature value of meteorological site monitoring, and " point-like " measurement data is expanded to the zone of different scale by interpolation.So, utilize such temperature observed reading and respective function to carry out temperature limitation, can give the estimation of NPP and bring error owing to following problem: at first, directly influencing the photosynthetic temperature of vegetation is not temperature, but the temperature of vegetation body itself, but accurately the surface temperature of mensuration vegetation is difficult to contact method even can't realizes.The second, used temperature can not accurately reflect the true temperature on vegetation surface when estimation NPP.The 3rd, even there is very big difference in temperature in the selection of different time scale models.The 4th, existing meteorological site is distributed in the zone nearer apart from the city mostly, and the temperature value that obtains in the thermometer screen is representative poor with respect to open-air terrestrial ecosystems.And with regard to areal distribution, the skewness of meteorological site, the website in forest and grassland ecosystem zone is very limited, and the calculating of NPP mainly is at forest and grassland area.The uncertainty of these restriction factors all can influence the estimation result of NPP.And the temperature that satellite remote sensing is surveyed is the surface radiation temperature, is exactly vegetation top layer radiation temperature concerning the vegetation canopy, and it is more near the temperature of vegetation itself.And the instantaneous vegetation temperature of obtaining big zone and continuous distribution of satellite remote sensing energy has remedied the deficiency of utilizing temperature estimation NPP.The radiation temperature of surface vegetation is applied to can improve in the NPP model accuracy of model.
Radiation temperature of vegetation and photosynthetic relation and to photosynthetic influence process need be carried out field survey and be tested and inquire into.Wherein in fact the non-cpntact measurement of temperature is exactly to utilize the measurement of radiometer and the refutation process of temperature, inversion principle that it is basic and satellite remote sensing temperature classes seemingly, but target homogeneous more, the influence of atmosphere is simple relatively.In radiation temperature observation, carry out photosynthetic measurement, it is most important that the research radiation temperature is changed the relation that changes with photosynthesis, but lack the testing equipment that radiation temperature and photosynthesis are measured synchronously at present.
The portable photosynthesis measuring system of LI-6400 is the highly sophisticated products of the ecological apparatus manufacturer LI-COR of world-renowned plant physiology company, having represented the current highest level of plant leaf blade photosynthesis surveying instrument in the world, is requisite fundamental research equipment important on the ecological study field.The radiometric temperature measurement of single blade can utilize radiometer to obtain, because the field angle of radiometer is less, when blade is nearer, obtains blade radiation temperature thereby blade will fully be full of the radiometer visual field at the radiometer camera lens.Problem is to utilize the photosynthesis of existing blade and blade chamber mensuration blade and the measurement of radiometer will certainly not bring error to test findings fully synchronously.In order to address this problem, must carry out corresponding transformation to existing leaf chamber, so that measure the photosynthetic surface emissivity temperature that obtains the blade of surveying simultaneously, and then improve the accuracy of NPP model prediction at LI-6400.
Summary of the invention:
The technical matters that solves:
Can not be in order to remedy existing leaf chamber to the radiation temperature of plant leaf blade and the deficiency of photosynthesis synchro measure, the present utility model self-recording unit, be connected with Li Cor 6400, when measuring leaf photosynthesis speed, can measure the infrared radiation temperature on the upper and lower surface of blade synchronously, for infrared radiation temperature and the photosynthetic relation of studying plant leaf blade provides science data, improved the precision of NPP model prediction.This leaf chamber good airproof performance, simple and practical, easy to operate, data are record automatically.
The technical scheme that its technical matters that solves the utility model adopts is:
Being used for of the utility model proposes measured the leaf chamber of the radiation temperature and the photosynthetic rate on the upper and lower surface of plant leaf blade synchronously, is made up of binary channels infrared thermometer and photosynthesis assimilation chamber.The binary channels infrared thermometer can be measured the radiation temperature on the upper and lower surface of plant leaf blade and simultaneously by the automatic record of computer, the function of photosynthesis assimilation chamber is that tested blade is clamped, form fixedly detected space and sampling, measure in conjunction with the photosynthetic rate of 6400 pairs of plant leaf blades of Li Cor.
The internal diameter size length and width of photosynthesis assimilation chamber are 2*3cm
2Comprise loam cake and following chamber, the material of loam cake lid is the thick organic glass of 2mm, transmittance is 98%, because organic glass is low to the infrared waves transmitance of 8-14um, in order accurately to measure to the radiation temperature of blade upper surface, on organic glass, be embedded with a diameter and be 10mm, thickness and be the window of making infrared thermometer before the 8um of 0.5mm by circular filter, a photosynthetically active radiation sensor PAR is equipped with in loam cake inside; The following indoor leaf temperature thermopair that has adopts contact method to measure the temperature of blade lower surface.The binary channels infrared thermometer is by two micro sensing heads, the electrical equipment box, cable and data acquisition software are formed, a sensing head is fixed on the oblique upper at an angle of loam cake with stainless steel stent, be 30 ° of angles with the organic glass plane of loam cake, by measuring the long 0.9mm of being of minor semi-axis by circular filter before the 8um, major semi-axis length is the radiation temperature of the blade upper surface of the oval hot spot of 1mm, another micro sensing head is installed in down indoor, the distance of sensing head surface distance blade surface is 10mm, measures diameter and be the radiation temperature of blade lower surface of the circular light spot of 1mm; The electrical equipment box is used to show binary channels radiation temperature value and channel interface, 485 communication interfaces and external power supply mouth is provided; Data acquisition software is Chinese operation interface, can carry out record to binary channels or single pass data, can setting recording at interval, thereby reach with photosynthetic rate measure fully synchronously.
The useful effect of patent of the present invention is, can be when measuring leaf photosynthesis speed, measure blade upper and lower surface infrared radiation temperature easily,, can reach the synchronous fully of infrared radiation temperature and photosynthetic mensuration system data record by the binary channels infrared thermometer simply is provided with.The all automatic record of determination data, convenient and swift.
Description of drawings
Further specify the utility model below in conjunction with drawings and embodiments.
Fig. 1 is an one-piece construction synoptic diagram of the present utility model;
Fig. 2 is the synoptic diagram of the utility model leaf chamber loam cake;
Fig. 3 is the synoptic diagram of chamber under the utility model leaf chamber;
Fig. 4 is the electrical equipment box structure synoptic diagram of the utility model infrared thermometer;
Fig. 5 is a fundamental diagram of the present utility model;
Among Fig. 1-4,1 is the photosynthesis assimilation chamber loam cake, and 2 is chamber under the photosynthesis assimilation chamber, 3 is sealing gasket, and 4 is the photosynthetically active radiation sensor, and 5 is the loam cake lid, 6 is cutoff filter before the 8um, and 7 is the leaf temperature thermopair, and 8,9 is the micro sensing head of infrared thermometer, 10 is the electrical equipment box of infrared thermometer, 11 is cable, and 12 is stainless steel stent, and 13,14 is the binary channels data line interface, 15 is 485 communication ports, and 16 is power interface.
Wherein chamber (2), sealing gasket (3), photosynthetically active radiation sensor (4), loam cake lid (5), the front edge filter (6) of 8um and leaf temperature thermocouple (7) have formed photosynthesis assimilation chamber under photosynthesis assimilation chamber loam cake (1), the photosynthesis assimilation chamber; The micro sensing head of infrared radiation thermometer (8,9), electrical appliance kit (10), cable 11 and data acquisition software have formed the binary channels infrared radiation thermometer jointly.
Embodiment
With reference to figure 1-4, leaf of the present utility model chamber is made up of photosynthesis assimilation chamber and binary channels infrared thermometer two parts.The function of photosynthesis assimilation chamber is that tested blade is clamped, and forms fixedly detected space and sampling, comprises loam cake (1) and following chamber (2) two parts, between loam cake and following chamber mutually the counterpart place respectively post sealing gasket (3) so that closed leave during measurement.Photosynthetically active radiation sensor PAR (4) is housed in the loam cake, the material of loam cake lid (5) adopts that transmittance is 98%, thickness is the thick organic glass of 2mm, is embedded with a diameter on the lid and is 10mm, thickness and be the window of making infrared thermometer before the 8um of 0.5mm by circular filter (6); The indoor leaf temperature thermopair (7) that is equipped with adopts contact method to measure the blade underlaying surface temperature down.The binary channels infrared thermometer is made up of two micro sensing heads (8,9), electrical equipment box (10), cable (11) and data acquisition software, function is when measuring leaf photosynthesis speed, infrared radiation temperature to the blade upper and lower surface is measured synchronously, data automatic recording; A sensing head (8) of infrared thermometer is placed on the angle of photosynthesis assimilation chamber loam cake by a stainless steel stent (12), the angle of cap surface is 30 degree on stainless steel substrates and the photosynthesis assimilation chamber, the sensing head surface is 30mm from the distance of blade upper surface, measures the radiation temperature of minor semi-axis length for the blade upper surface of the oval hot spot of 0.9mm, the long 1mm of being of major semi-axis by ending circular filter (6) before the 8um; Another micro sensing head (9) is placed on the following indoor of leaf chamber, and is placed side by side with the leaf temperature thermopair, and the distance of sensing head surface distance blade surface is 10mm, measures diameter and be the radiation temperature of blade lower surface of the circular light spot of 1mm; Sensing head adopts German Optris CT technology, is of a size of 28mm * 14mm, and storing temperature is-40-85 ℃, spectral range is 8-14um; Electrical equipment box (10) front is the data presentation window, and the back side is that channel data line interface (13,14), 485 communication ports (15) and power supply plug (16) are formed, and has two-way and shows and the RS485 Interface for digital communication, with outside 12V power supply power supply; The binary channels infrared thermometer is furnished with acquisition software, can carry out record to binary channels or single pass data according to demand, the data retention cycle can be set, reach and photosynthetic rate data synchronization record, file and filename that setting data is preserved, the file of access can be opened with Excel software and edit.
The data acquisition software of above-mentioned infrared thermometer adopts RS485 communication bus, half-duplex operation mode.Baud rate is 9600bps, and the address is 01 and 02 (sexadecimal).During communication, main frame sends the address of slave, indicates to obtain data.Slave judges whether the address is correct earlier after receiving data, after affirmation is correct, sends data immediately.The RS485 telecommunication cable is connected temperature measurer and computing machine, and cable is connected to the serial ports of PC by the RS485 RS 232.
With reference to Fig. 5, during use, the leaf chamber after improving is linked to each other with the photosynthetic instrument of Li-Cor6400, the micro sensing head of binary channels infrared thermometer is connected with the electrical equipment box, then infrared thermometer is linked to each other with computer, open configuration software, set file, filename, data retention cycle; Tested blade is sandwiched the leaf chamber, measure the infrared radiation temperature of photosynthetic rate, transpiration rate, leaf temperature and the blade upper and lower surface of blade synchronously, physiological ecological parameters such as photosynthetic rate are by the automatic record of photosynthetic analyzer, and infrared radiation temperature is by the acquisition software synchronous recording.Easy and simple to handle, the data automatic recording of this device, be applicable to measurement, study infrared radiation temperature exactly for science and provide science data the influence of photosynthesis, transpiration to plant leaf blade upper and lower surface infrared radiation temperature and physiological ecological parameters such as photosynthetic rate, transpiration rate.
Claims (4)
1. binary channels blade infrared temperature and photosynthesis are measured the leaf chamber synchronously, it is characterized in that it comprises binary channels infrared thermometer and photosynthesis assimilation chamber two parts, and the binary channels infrared thermometer is made up of micro sensing head, electrical equipment box and cable; Photosynthesis assimilation chamber is divided into loam cake and following chamber, and at the following indoor leaf temperature thermopair that is equipped with, photosynthetically active radiation sensor PAR is equipped with in loam cake inside; Two sensing heads of twin-channel infrared thermometer are placed in the oblique upper at an angle of loam cake, leaf chamber respectively with indoor down.
2. leaf according to claim 1 chamber, it is characterized in that, a micro sensing head of described binary channels infrared thermometer is installed on the angle of photosynthesis assimilation chamber loam cake by stainless steel stent, be 30 ° of angles with loam cake, the sensing head surface is 30mm from the distance of blade upper surface, measures the blade radiation temperature of the oval hot spot of the long 0.9mm of being of minor semi-axis, the long 1mm of being of major semi-axis; Another sensing head is installed under the photosynthesis assimilation chamber indoor, and is placed side by side with the leaf temperature thermopair, and the distance of sensing head surface distance blade surface is 10mm, and measuring diameter is the blade radiation temperature of the circular light spot of 1mm; Sensing head adopts German optris CT technology, is of a size of 28mm * 14mm, and storing temperature is-40-85 ℃, spectral range is 8-14um.
3. leaf according to claim 1 chamber is characterized in that, the electrical equipment box front of described binary channels infrared thermometer is the data presentation window, and the back side is binary channels data line interface, 485 communication ports and power supply plug.
4. leaf according to claim 1 chamber is characterized in that, the material of the loam cake of described binary channels infrared thermometer is the organic glass of 2mm, transmittance 98%, and it is the preceding circular filter that ends of 8um of 10mm that a diameter is arranged on the organic glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920270896XU CN201622119U (en) | 2009-12-02 | 2009-12-02 | Synchronous double-channel blade infrared temperature and photosynthesis determination blade chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920270896XU CN201622119U (en) | 2009-12-02 | 2009-12-02 | Synchronous double-channel blade infrared temperature and photosynthesis determination blade chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201622119U true CN201622119U (en) | 2010-11-03 |
Family
ID=43025576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920270896XU Expired - Fee Related CN201622119U (en) | 2009-12-02 | 2009-12-02 | Synchronous double-channel blade infrared temperature and photosynthesis determination blade chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201622119U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105675608A (en) * | 2014-11-21 | 2016-06-15 | 翼鬃麒科技（北京）有限公司 | Multi-leaf-chamber dynamic photosynthesis system |
| CN107830934A (en) * | 2017-11-02 | 2018-03-23 | 天津柯基科技有限公司 | A kind of plant temperature measuring equipment |
| CN108444598A (en) * | 2018-03-20 | 2018-08-24 | 江西省农业科学院农业工程研究所 | Method for measuring light distribution in double-cropping rice canopy |
| CN111398284A (en) * | 2020-05-14 | 2020-07-10 | 上海乾菲诺农业科技有限公司 | Photosynthetic apparatus capable of restoring natural illumination |
| WO2023208030A1 (en) * | 2022-04-28 | 2023-11-02 | 湖南杂交水稻研究中心 | Apparatus for inducing single-side leaf photosynthesis |
-
2009
- 2009-12-02 CN CN200920270896XU patent/CN201622119U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105675608A (en) * | 2014-11-21 | 2016-06-15 | 翼鬃麒科技（北京）有限公司 | Multi-leaf-chamber dynamic photosynthesis system |
| CN107830934A (en) * | 2017-11-02 | 2018-03-23 | 天津柯基科技有限公司 | A kind of plant temperature measuring equipment |
| CN108444598A (en) * | 2018-03-20 | 2018-08-24 | 江西省农业科学院农业工程研究所 | Method for measuring light distribution in double-cropping rice canopy |
| CN111398284A (en) * | 2020-05-14 | 2020-07-10 | 上海乾菲诺农业科技有限公司 | Photosynthetic apparatus capable of restoring natural illumination |
| WO2023208030A1 (en) * | 2022-04-28 | 2023-11-02 | 湖南杂交水稻研究中心 | Apparatus for inducing single-side leaf photosynthesis |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Thomson et al. | Data analysis methods in physical oceanography | |
| CN201622119U (en) | Synchronous double-channel blade infrared temperature and photosynthesis determination blade chamber | |
| CN101694458B (en) | Hyperspectral radiation observation system of the upper and lower surfaces of ice layer | |
| CN1987421B (en) | Method and device for in-site detecting soil carbon dioxide flux | |
| CN101975764B (en) | Near infrared spectrum technology-based multiband soil nitrogen detection device and method | |
| CN102564962B (en) | System and method for detecting nutritional components in fruit trees | |
| CN201674820U (en) | Canopy leaf chamber capable of simultaneously measuring vegetation population radiation temperature and photosynthesis | |
| CN106405055A (en) | System and method for continuous online measurement of soil CO2 flux | |
| CN201016922Y (en) | Soil carbon dioxide flux original position detection device | |
| CN102393238A (en) | Grassland dry matter mass remote sensing estimating method | |
| CN104777108B (en) | The detection means and method of a kind of chlorophyll content | |
| CN104460788A (en) | Constant temperature and constant humidity deformeter | |
| CN103983606A (en) | Portable fast near-infrared edible oil quality detector | |
| US9335258B2 (en) | System and method of retrieving mass density distributions and thermal profiles from the atmosphere to identify molecular constituents that may absorb spectral energy | |
| Thomas et al. | The Roland von Glasow Air-Sea-Ice Chamber (RvG-ASIC): an experimental facility for studying ocean–sea-ice–atmosphere interactions | |
| CN105300897A (en) | Portable soil nutrient fast-detection device for field | |
| Wu et al. | Revised photochemical reflectance index (PRI) for predicting light use efficiency of wheat in a growth cycle: validation and comparison | |
| US10488382B2 (en) | Systems and methods for measuring gas flux | |
| CN103149180B (en) | Detection method of soil spectral reflectivity and specific conductance | |
| CN205139009U (en) | Quick detection device of portable soil nutrients | |
| CN204270182U (en) | Constant temperature and humidity deformeter | |
| CN104359428A (en) | Instrument and method for measuring long-time-series field forest leaf area index (LAI) | |
| CN204008587U (en) | The rising measuring instrument of a kind of canopy photosynthesis | |
| CN104181109B (en) | For the device of field test earth pillar EO-1 hyperion | |
| CN105717048A (en) | Water collection and treatment system based on aquaculture water optical characteristics |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101103 Termination date: 20141202 |
|
| EXPY | Termination of patent right or utility model |