CN203772838U - Plant water potential determination early warning device - Google Patents
Plant water potential determination early warning device Download PDFInfo
- Publication number
- CN203772838U CN203772838U CN201420172690.4U CN201420172690U CN203772838U CN 203772838 U CN203772838 U CN 203772838U CN 201420172690 U CN201420172690 U CN 201420172690U CN 203772838 U CN203772838 U CN 203772838U
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- China
- Prior art keywords
- warning device
- pressure chamber
- early warning
- water potential
- glass bar
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Abstract
The utility model discloses a plant water potential determination early warning device which relates to the technical field of plant moisture determination. The plant water potential determination early warning device comprises a pressure chamber, a pressure chamber cover, an opening, a rubber pad, a triangular glass rod and an early warning device, wherein the outer side of the right end of the pressure chamber is provided with the pressure chamber cover, the opening is formed in the middle of the right side of the pressure chamber, the inner side of the opening is provided with the rubber pad, the right side of the pressure chamber is provided with the triangular glass rod, and the triangular glass rod is connected with the early warning device. By adopting the plant water potential determination early warning device, the number of degrees of a pressure gauge can be accurately read in time, the error of an experiment result caused by the manual observation can be prevented, and the test accuracy is improved.
Description
Technical field:
The utility model relates to a kind of plant water potential and measures prior-warning device, belongs to plant moisture determination techniques field.
Background technology:
In plant, the height of the flow of water reflects moisture supplydemand relationship, is subject to the weight of water stress.Researcher makes the height of the flow of water in object by measurement and weighs crop to the response of environmental impact and definite irrigation program.Plant water potential is an important parameter in the multidisciplinary researches such as research plant water physiology, agricultural water-saving irrigation and ecology.The method of the most frequently used mensuration flow of water is chamber method, because chamber method can be measured the flow of water rapidly, does not need strict control survey condition, in field measurement, is used widely.It is inverted in blade to be measured or branch in pressure chamber while measuring, and with rubber or plastic plug, clamps petiole or stem.When to pressurisation of pressure chambers when offseting with its flow of water and slightly surpass, water flow out in conduit, forms the globule, reads the manometric number of degrees while observing the globule with magnifier.
In measuring flow of water process, need to take observation of plant sample tangent plane with magnifier.Plant water potential water potential value under different environmental baselines differs in size.Therefore,, even under uniform pressure gradient, plant tangent plane forms the varying length consuming time of the globule.This just makes troubles and even causes the error in observation to observer, makes test findings produce error, and adopts the artificial observation of plant sample of magnifier tangent plane moisture situation of change, and under long-time observation condition, eyes easily produce fatigue.
Utility model content:
For the problems referred to above, the technical problems to be solved in the utility model is to provide a kind of plant water potential and measures prior-warning device.
Plant water potential of the present utility model is measured prior-warning device, and it comprises pressure chamber, pressure chamber head, opening, rubber blanket, Rhizoma Sparganii glass bar and prior-warning device; The right-hand member arranged outside of pressure chamber has pressure chamber head, in the middle of the right edge of pressure chamber, is provided with opening, and the inner side of opening is provided with rubber blanket, and the right side of pressure chamber is provided with Rhizoma Sparganii glass bar, and Rhizoma Sparganii glass bar is connected with prior-warning device.
As preferably, the bosom of described Rhizoma Sparganii glass bar is horizontally arranged with capillary inner chamber, the bottom of Rhizoma Sparganii glass bar is vertically provided with two electrodes, and the upper end of two electrodes is arranged on the inside of capillary inner chamber, and its lower end passes Rhizoma Sparganii glass bar and is connected with prior-warning device.
The beneficial effects of the utility model are: it can read the tensimeter number of degrees accurately and timely, prevent from, due to the artificial error that causes experimental result of observing, having improved test accuracy.
Accompanying drawing explanation:
For ease of explanation, the utility model is described in detail by following concrete enforcement and accompanying drawing.
Fig. 1 is structural representation of the present utility model,
Fig. 2 is the circuit theory diagrams of prior-warning device in the utility model.
In figure: 1-pressure chamber; 2-pressure chamber head; 3-opening; 4-rubber blanket; 5-Rhizoma Sparganii glass bar; 5-1-capillary inner chamber; 6-prior-warning device; 7-electrode.
Embodiment:
For making the purpose of this utility model, technical scheme and advantage more cheer and bright, below by the specific embodiment shown in accompanying drawing, the utility model is described.But should be appreciated that, these descriptions are exemplary, and do not really want to limit scope of the present utility model.In addition, in the following description, omitted the description to known configurations and technology, to avoid unnecessarily obscuring concept of the present utility model.
As shown in Figure 1-2, this embodiment by the following technical solutions: it comprises pressure chamber 1, pressure chamber head 2, opening 3, rubber blanket 4, Rhizoma Sparganii glass bar 5 and prior-warning device 6; The right-hand member arranged outside of pressure chamber 1 has pressure chamber head 2, in the middle of the right edge of pressure chamber 1, is provided with opening 3, and the inner side of opening 3 is provided with rubber blanket 4, and the right side of pressure chamber 1 is provided with Rhizoma Sparganii glass bar 5, and Rhizoma Sparganii glass bar 5 is connected with prior-warning device 6.
Further, the bosom of described Rhizoma Sparganii glass bar 5 is horizontally arranged with capillary inner chamber 5-1, the upper end that the bottom of Rhizoma Sparganii glass bar 5 is vertically provided with 7, two electrodes 7 of two electrodes is arranged on the inside of capillary inner chamber 5-1, and its lower end passes Rhizoma Sparganii glass bar 5 and is connected with prior-warning device 6.
This embodiment in use, first plant is placed on to the inside of pressure chamber 1, the root of plant is stretched out to pressure chamber 1 by opening 3, then capillary inner chamber 5-1 one end of plant sample tangent plane and Rhizoma Sparganii glass bar 5 inside is adjacent to, when slight pressure surpasses plant water potential, tangent plane forms the globule, under the capillary action of Rhizoma Sparganii glass bar 5, it is inner that liquid is inhaled into rapidly capillary inner chamber 5-1, two electrode 7 UNICOMs, electromagnetic relay is triggered, and prior-warning device starts to report to the police; Meanwhile, in the abnormal situation of external circuits electrode power supply, by Rhizoma Sparganii glass bar 5, can observe more clearly the generation of water column.
In this embodiment, the diameter of capillary inner chamber 5-1 is 0.5mm.
More than show and described ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and instructions, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (2)
1. plant water potential is measured prior-warning device, it is characterized in that: it comprises pressure chamber (1), pressure chamber head (2), opening (3), rubber blanket (4), Rhizoma Sparganii glass bar (5) and prior-warning device (6); The right-hand member arranged outside of pressure chamber (1) has pressure chamber head (2), in the middle of the right edge of pressure chamber (1), be provided with opening (3), the inner side of opening (3) is provided with rubber blanket (4), the right side of pressure chamber (1) is provided with Rhizoma Sparganii glass bar (5), and Rhizoma Sparganii glass bar (5) is connected with prior-warning device (6).
2. plant water potential according to claim 1 is measured prior-warning device, it is characterized in that: the bosom of described Rhizoma Sparganii glass bar (5) is horizontally arranged with capillary inner chamber (5-1), the bottom of Rhizoma Sparganii glass bar (5) is vertically provided with two electrodes (7), the upper end of two electrodes (7) is arranged on the inside of capillary inner chamber (5-1), and its lower end passes Rhizoma Sparganii glass bar (5) and is connected with prior-warning device (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420172690.4U CN203772838U (en) | 2014-04-10 | 2014-04-10 | Plant water potential determination early warning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420172690.4U CN203772838U (en) | 2014-04-10 | 2014-04-10 | Plant water potential determination early warning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203772838U true CN203772838U (en) | 2014-08-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420172690.4U Expired - Fee Related CN203772838U (en) | 2014-04-10 | 2014-04-10 | Plant water potential determination early warning device |
Country Status (1)
| Country | Link |
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| CN (1) | CN203772838U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105388253A (en) * | 2015-10-21 | 2016-03-09 | 甘肃农业大学 | Plant cell water potential tester and application thereof |
| CN110274992A (en) * | 2019-06-06 | 2019-09-24 | 北京益康农科技发展有限公司 | A kind of flow of water measuring device |
-
2014
- 2014-04-10 CN CN201420172690.4U patent/CN203772838U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105388253A (en) * | 2015-10-21 | 2016-03-09 | 甘肃农业大学 | Plant cell water potential tester and application thereof |
| CN110274992A (en) * | 2019-06-06 | 2019-09-24 | 北京益康农科技发展有限公司 | A kind of flow of water measuring device |
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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: 20140813 Termination date: 20150410 |
|
| EXPY | Termination of patent right or utility model |