CN108227774A - A kind of device that photosynthesis measurement system temperature control range is extended by circulation alcohol - Google Patents
A kind of device that photosynthesis measurement system temperature control range is extended by circulation alcohol Download PDFInfo
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- CN108227774A CN108227774A CN201711446350.0A CN201711446350A CN108227774A CN 108227774 A CN108227774 A CN 108227774A CN 201711446350 A CN201711446350 A CN 201711446350A CN 108227774 A CN108227774 A CN 108227774A
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- Prior art keywords
- alcohol
- temperature
- measurement system
- photosynthesis
- circulation
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Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/01—Control of temperature without auxiliary power
- G05D23/13—Control of temperature without auxiliary power by varying the mixing ratio of two fluids having different temperatures
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
Abstract
The invention discloses a kind of devices that photosynthesis measurement system temperature control range is extended by circulation alcohol, the liquid alcohol of cooling or heating is conveyed using circulating pump, and it is sent by pvc pipe to the metal parts (containing the water channel of a plurality of negotiable alcohol in inside) being tightly bonded with LI 6400XT photosynthesis measuring chambers, and change the temperature of the metal parts；The temperature of photosynthesis measuring chamber is gradually adjusted by heat exchanging process, the temperature control range of final effectively extension Portable photosynthesis system (LI 6400XT).The device causes the range of the portable photosynthesis measurement system regulation and control leaf chamber temperature of LI 6400XT to be extended to 5 DEG C~40 DEG C by original environment temperature ± 7 DEG C, so that field measuring plant/crop photosynthesis parameter is no longer limited by ambient temperature, measuring technique and method are provided to the response of temperature and adaptability mechanism for further investigated plant/crop physiology and ecology process under field condition.
Description
Technical field
The invention belongs to field monitoring plant physiological ecology parametric technique fields, are related to one kind and extend light by circulation alcohol
The device of cooperation measurement system temperature control range.
Background technology
It is represented now in the world by the portable photosynthesis measurement systems of LI-6400XT of LI-COR companies of U.S. research and development manufacture
The highest level of plant/crop photosynthesis process pertinent instruments is monitored in blade level.LI-6400XT is portable photosynthetic
Measurement system can control the indoor temperature of leaf, CO2The correlative environmental factors such as concentration, relative humidity, intensity of illumination.LI-
6400XT solves the problems of field measurement photosynthetic parameters, such as the red blue-light source of outfit can be realized and accurately control leaf
Indoor light intensity, but not change the indoor temperature of leaf due to the growth of light application time.However, LI-6400XT portable lights
The ability for closing measurement system autogenous control leaf chamber temperature is very limited, and can only be based on environment temperature reduces or increase 7 DEG C, causes
Photosynthetic parameters of the plant/crop in low temperature environment (5 DEG C~20 DEG C) can not be monitored during the broiling summer；Similarly, LI-
6400XT can not also be realized to join in cold winter monitoring plant/crop in the photosynthesis of hot environment (25 DEG C~40 DEG C)
Number.Therefore, currently based on the phase of the portable photosynthesis measurement system field monitoring plant/crop photosynthesis parameters of LI-6400XT
Close experimental study be limited only to Various Seasonal measure small range temperature changing amplitude under photosynthetic parameters, i.e., summer measure compared with
The photosynthetic parameters (30 DEG C~40 DEG C) of high environment temperature, and measure relatively low (5 DEG C~20 DEG C) respectively with spring and autumn in winter
With the photosynthetic parameters under the conditions of moderate temperature (20 DEG C~30 DEG C), greatly limit for plant/crop life
The further investigated of physiological ecology field key scientific problems and understanding.
In conclusion problem of the existing technology is：The portable photosynthesis measurement system temperature adjusting ranges of LI-6400XT
It is very limited, become the critical bottleneck problem that plant/crop photosynthesis parameter is monitored under limitation field condition, be badly in need of from technology
It is upper to realize that portable photosynthesis measurement system temperature adjusting range is effectively extended to LI-6400XT, so as under field condition
It monitors plant/crop physiology and ecology process and provides measuring technique support to the response of temperature.
Invention content
In view of the problems of the existing technology, circulation alcohol extension photosynthesis measurement system is crossed the present invention provides a kind of
The device of temperature control range.
The invention is realized in this way the device of photosynthesis measurement system temperature control range, institute are extended by circulation alcohol
The device for stating circulation alcohol extension photosynthesis measurement system temperature control range is provided with：
Heat up slot, cooling slot；
Circulating pump connects the heating slot, cooling slot by pipeline；
The circulating pump includes the metal parts of negotiable alcohol channel by being connected into alcohol PVC pipeline；
The metal parts containing negotiable alcohol channel is by going out alcohol pvc pipe channel connection heating slot, cooling slot.
Further, the outlet of the heating slot, the slot that cools down is separately installed with high temperature alcohol transport switch, the transport of low temperature alcohol
Switch.
Further, the circulating pump into alcohol PVC pipeline is equipped with cycle switch pump.
Photosynthesis measurement system temperature control is extended by circulation alcohol described in one kind another object of the present invention is to provide
The method that photosynthesis measurement system temperature control range is extended by circulation alcohol of the device of range, it is described to be expanded by circulation alcohol
The method of exhibition photosynthesis measurement system temperature control range includes：
(1) temperature reducing substances such as hot water temperature elevating substance or dry ice, liquid nitrogen are separately added into heating slot, cooling slot, prepared not
Synthermal circulation alcohol；
(2) it is pumped by recycling switch pump control loop；By controlling high temperature alcohol transport switch, low temperature alcohol transport switch
Realize the calling to different temperatures circulation alcohol；
(3) circulation alcohol with into alcohol pvc pipe channel inflow include a plurality of negotiable alcohol channel metal parts in,
Heat exchange occurs with leaf chamber, changes the temperature of leaf chamber inner vanes；
(4) after heat exchanging process, circulation alcohol is again returned to alcohol pvc pipe channel is gone out in heating slot or cooling slot
Copper pipe in, include a plurality of flow again as what high temperature or low temperature alcohol were delivered to the fitting of same photosynthesis measurement system leaf chamber
The heat exchanging process of leaf chamber is participated in the metal parts of logical alcohol channel.
The present invention makes the temperature control range of LI-6400XT photosynthesis measurement systems by environment by recycling different temperatures alcohol
± 7 DEG C of temperature are extended to plant and arbitrarily adjust the photosynthetic of the system with (5 DEG C~40 DEG C) in biological activity temperature range
Effect measures room temperature, thoroughly solves the problems, such as the limited critical bottleneck of LI-6400XT photosynthesis measurement system temperature control abilities,
Make experimenter that can continuously monitor the net photosynthesis reaction rate and respiratory rate of different temperatures under wild environment in a short time
Key physiologicals Ecological Parameter is waited, annual seasonal variations or daily temperature diurnal variation is no longer rely on from this and is compareed and heated item
Net photosynthesis reaction rate and respiratory rate breach to the response curve (Fig. 1) of different temperatures and restrict field for a long time under part
Under the conditions of monitor the key physiologicals Ecological Parameter such as net photosynthesis reaction rate and respiratory rate technical bottleneck, greatly improve phase
The determination efficiency of pass Physiological Ecology parameter and index is further investigated plant/crop key physiological ecological process to temperature
Response Mechanism provides the powerful support in terms of measuring technique and method.
Description of the drawings
Fig. 1 is the device knot provided in an embodiment of the present invention for crossing circulation alcohol extension photosynthesis measurement system temperature control range
Structure schematic diagram；
In figure：1st, heat up slot；2nd, cool down slot；3rd, high temperature alcohol transport switch；4th, low temperature alcohol transport switch；5th, circulating pump
Switch；6th, circulating pump；7th, the metal parts of negotiable liquid alcohol channel is included；8th, into alcohol pvc pipe channel；9th, go out alcohol
Pvc pipe channel.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
The present invention makes the range of LI-6400XT photosynthesis measurement system regulation temperature be expanded to from environment temperature ± 7 DEG C
It 10 DEG C~40 DEG C, is particularly suitable for measuring plant/response of the physiological ecology of crop parameter to different temperatures under field condition.
The application principle of the present invention is explained in detail below in conjunction with the accompanying drawings.
As shown in Figure 1, provided in an embodiment of the present invention extend photosynthesis measurement system temperature control range by circulation alcohol
Device include：Heating slot 1, high temperature alcohol transport switch 3, low temperature alcohol transport switch 4, cycle switch pump 5, follows at cooling slot 2
Ring pump 6, the metal parts 7 that includes negotiable liquid alcohol channel, into alcohol pvc pipe channel 8, go out alcohol pvc pipe channel 9.
Circulating pump 6 connects heating slot 1, cooling slot 2 by pipeline, and circulating pump 6 can by being included into alcohol pvc pipe channel 8
The metal parts 7 of circulating liquid alcohol channel includes the metal parts 7 of negotiable liquid alcohol channel by going out alcohol pvc pipe
The connection heating of channel 9 slot 1, cooling slot 2；Heating slot 1, cool down slot 2 outlet be separately installed with high temperature alcohol transport switch 3, it is low
Heat wine essence transport switch 4, circulating pump 6 are equipped with cycle switch pump 5 into alcohol pvc pipe channel.
The present invention is by being separately added into the cooling object such as hot water temperature elevating substance or dry ice into heating slot 1, cooling slot 2
Matter prepares the circulation alcohol of different temperatures；By recycling 5 control loop of switch pump pump 6；Then by the way that high temperature alcohol is controlled to transport
Defeated switch 3, low temperature alcohol transport switch 4 realize the calling to different temperatures circulation alcohol；Circulation alcohol is with into alcohol pvc pipe
Channel 8, which flows into, to be included in the metal parts 7 of negotiable liquid alcohol channel, and with LI-6400XT photosynthesis measurement systems
Photosynthesis measures leaf chamber and heat exchange occurs, and then change the temperature of leaf chamber inner vanes.After heat exchanging process, wine is recycled
Essence is returned to smart pvc pipe channel 9 is gone out in heating slot 1 or cooling slot 2.
(1) heating and cooling of circulation alcohol：First before photosynthesis measurement system operation, for circulation alcohol
Certain quantity of fluid absolute alcohol is poured into pvc pipe channel；Then according to experiment demand, hot water is added in the slot that heats up or is being cooled down
The temperature reducing substances such as dry ice, liquid nitrogen are added in slot, so as to prepare the circulation alcohol for meeting experiment demand temperature.
(2) transport of circulation alcohol：The circulation alcohol of the present invention is to make the alcohol in pvc pipe channel close using circulating pump
It flows and recycles in the pipe-line system closed, it is portable photosynthetic that the PVC pipeline wrapped up by masking foil transports LI-6400XT
Act on the special metal parts outside the leaf chamber of measuring system.The special metal parts wraps up entire leaf chamber.High temperature alcohol and low
Heat wine essence is responsible for conveying by two independent transportation systems respectively, and high and low temperature alcohol is controlled by valve according to experiment demand
Output and supply；It participates in the circulation alcohol after heat is transmitted and flows back to spiral distribution in heating slot or cooling slot with pvc pipe channel
In the copper pipe of closing, with boiling water or dry ice pass through after heat exchange again being transported to same LI-6400XT by pvc pipe channel cycle
The heat that the special metal parts participation fitted closely outside the leaf chamber of portable photosynthesis measuring system carries out here is transmitted
And heat exchanging process.
(3) adjustment of leaf chamber intra vane temperature：After circulation alcohol reaches leaf chamber, with metal special outside leaf chamber
Water channel flowing in utensil carries out more adequately heat transmission, and then adjust the temperature of leaf chamber intra vane with leaf chamber, realizes adjustment
The effect of leaf chamber intra vane temperature.
(4) heat preservation of recirculated water：Heat up slot and the preferable stainless steel material making of cooling slot itself selection heat insulating ability, external
It is surrounded by insulating foam.The external transport pipeline of all circulation alcohols is carried out in the pvc pipe being wrapped in masking foil.It is special
Metal parts processed uses stainless steel, and internal water channel makes by material of copper, thus heat preservation of the device for circulation alcohol
Effect is preferable.
It is illustrated with reference to situation of the present invention during practice：(with North China Plain typical case's agricultural ecological
For system maize leaf, Tables 1 and 2 is seen).
Response of the maize leaf Net Photosynthetic Rate to heating under 1 condition of different temperatures of table
| Leaf temperature/DEG C | 5℃ | 10℃ | 15℃ | 20℃ | 25℃ | 30℃ | 35℃ | 40℃ |
| Control/μm olm-2·s-1 | 3.8 | 4.9 | 8.0 | 12.7 | 18.2 | 17.4 | 16.5 | 9.1 |
| Heat/μm olm-2·s-1 | 4.0 | 4.3 | 9.4 | 13.6 | 23.4 | 29.2 | 28.1 | 20.8 |
Response of the maize leaf Dark respiration rate to heating under 2 condition of different temperatures of table
| Leaf temperature/DEG C | 5℃ | 10℃ | 15℃ | 20℃ | 25℃ | 30℃ | 35℃ | 40℃ |
| Control/μm olm-2·s-1 | 1.5 | 1.71 | 2.04 | 2.43 | 2.97 | 3.75 | 4.55 | 5.53 |
| Heat/μm olm-2·s-1 | 1.4 | 1.60 | 1.67 | 1.83 | 2.34 | 2.83 | 3.47 | 4.14 |
The thermoregulation range of the portable photosynthetic measuring systems of LI-6400XT after processed by the invention is by original environment temperature
± 7 DEG C have been increased to 5 DEG C~40 DEG C, carry out the measurement of every physiological and ecological process parameter of plant in the wild convenient for experimenter
Activity obtains abundanter experimental data.Meanwhile heating and cooling process of the invention with substance be that acquiring way is more
Sample, cost is relatively low, smaller using rear environmental pollution, meets the demand for development of current era.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should all be included in the protection scope of the present invention.
Claims (4)
1. a kind of device that photosynthesis measurement system temperature control range is extended by circulation alcohol, which is characterized in that the mistake is followed
The device of ring alcohol extension photosynthesis measurement system temperature control range is provided with：
Heat up slot, cooling slot；
Circulating pump connects the heating slot, cooling slot by pipeline；
The circulating pump includes the metal parts of negotiable alcohol channel by being connected into alcohol PVC pipeline；
The metal parts containing negotiable alcohol channel is by going out alcohol pvc pipe channel connection heating slot, cooling slot.
2. the device of photosynthesis measurement system temperature control range, feature are extended by circulation alcohol as described in claim 1
It is, the outlet of the heating slot, the slot that cools down is separately installed with high temperature alcohol transport switch, low temperature alcohol transport switch.
3. the device of photosynthesis measurement system temperature control range, feature are extended by circulation alcohol as described in claim 1
It is, the circulating pump is equipped with cycle switch pump into alcohol PVC pipeline.
4. a kind of device for extending photosynthesis measurement system temperature control range by circulation alcohol as described in claim 1 passes through
The method that circulation alcohol extends photosynthesis measurement system temperature control range, which is characterized in that described that light is extended by circulation alcohol
The method of cooperation measurement system temperature control range includes：
(1) temperature reducing substances such as hot water temperature elevating substance or dry ice, liquid nitrogen are separately added into heating slot, cooling slot, prepare not equality of temperature
The circulation alcohol of degree；
(2) it is pumped by recycling switch pump control loop；By the way that high temperature alcohol transport switch, low temperature alcohol transport switch is controlled to realize
To the calling of different temperatures circulation alcohol；
(3) circulation alcohol into alcohol pvc pipe channel with flowing into the metal parts for including a plurality of negotiable alcohol channel, with leaf
Heat exchange occurs for room, changes the temperature of leaf chamber inner vanes；
(4) after heat exchanging process, circulation alcohol again returns to heating slot or the copper to cool down in slot with alcohol pvc pipe channel is gone out
Guan Zhong includes a plurality of negotiable wine as what high temperature or low temperature alcohol were delivered to the fitting of same photosynthesis measurement system leaf chamber again
The heat exchanging process of leaf chamber is participated in the metal parts being proficient in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711446350.0A CN108227774A (en) | 2017-12-27 | 2017-12-27 | A kind of device that photosynthesis measurement system temperature control range is extended by circulation alcohol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711446350.0A CN108227774A (en) | 2017-12-27 | 2017-12-27 | A kind of device that photosynthesis measurement system temperature control range is extended by circulation alcohol |
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| Publication Number | Publication Date |
|---|---|
| CN108227774A true CN108227774A (en) | 2018-06-29 |
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| CN201711446350.0A Pending CN108227774A (en) | 2017-12-27 | 2017-12-27 | A kind of device that photosynthesis measurement system temperature control range is extended by circulation alcohol |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4768390A (en) * | 1985-06-14 | 1988-09-06 | The British Petroleum Company P.L.C. | Instrument for measuring the photosynthetic activities of plants |
| CN201097226Y (en) * | 2007-09-29 | 2008-08-06 | 曾静怡 | A mini-temperature adjusting device |
| CN203608631U (en) * | 2013-11-25 | 2014-05-28 | 华南农业大学 | Temperature control device for leaves |
| CN205868223U (en) * | 2016-07-27 | 2017-01-11 | 江苏永达药业有限公司 | Response device's automatic temperature control system |
| CN106768962A (en) * | 2017-01-03 | 2017-05-31 | 上海瀚海检测技术股份有限公司 | Detection method and system that a kind of cold and hot medium Rapid Circulation passes through tested pipeline |
| CN107045361A (en) * | 2016-02-05 | 2017-08-15 | 致茂电子股份有限公司 | Double-loop temperature control module and electronic element testing equipment with same |
-
2017
- 2017-12-27 CN CN201711446350.0A patent/CN108227774A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4768390A (en) * | 1985-06-14 | 1988-09-06 | The British Petroleum Company P.L.C. | Instrument for measuring the photosynthetic activities of plants |
| CN201097226Y (en) * | 2007-09-29 | 2008-08-06 | 曾静怡 | A mini-temperature adjusting device |
| CN203608631U (en) * | 2013-11-25 | 2014-05-28 | 华南农业大学 | Temperature control device for leaves |
| CN107045361A (en) * | 2016-02-05 | 2017-08-15 | 致茂电子股份有限公司 | Double-loop temperature control module and electronic element testing equipment with same |
| CN205868223U (en) * | 2016-07-27 | 2017-01-11 | 江苏永达药业有限公司 | Response device's automatic temperature control system |
| CN106768962A (en) * | 2017-01-03 | 2017-05-31 | 上海瀚海检测技术股份有限公司 | Detection method and system that a kind of cold and hot medium Rapid Circulation passes through tested pipeline |
Non-Patent Citations (3)
| Title |
|---|
| 姜恕 等: "《草地生态研究方法》", 31 October 1988, 农业出版社 * |
| 尹荣 等: "《大学化学实验》", 31 May 2004 * |
| 郑云普: "华北平原典型农田生态系统玉米叶片的结构、生理及生化特性对全球变暖的响应与适应", 《万方学位论文数据库》 * |
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Application publication date: 20180629 |
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