CN205538789U - Soil water suction sensor - Google Patents
Soil water suction sensor Download PDFInfo
- Publication number
- CN205538789U CN205538789U CN201620087579.4U CN201620087579U CN205538789U CN 205538789 U CN205538789 U CN 205538789U CN 201620087579 U CN201620087579 U CN 201620087579U CN 205538789 U CN205538789 U CN 205538789U
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- China
- Prior art keywords
- pot clay
- soil
- clay end
- sensor
- discharge
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- Expired - Fee Related
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Abstract
The utility model provides a soil water suction sensor, includes the pot clay end, the pot clay end has a plurality of tiny holes, the pot clay end in contain resistance, this resistance comprises the stopping that loads in the pot clay end, PVC nose end, this PVC union coupling discharge are located to the pot clay end, the discharge be equipped with the water filling port, this water filling port is equipped with the rubber stopper, discharge one side connect a pressure drag sensor. The utility model discloses survey soil moisture content that can be convenient quick is in order to satisfy the agricultural production requirement that becomes more meticulous, and it needn't adopt the soil sample, does not destroy the soil framework to design simply easy -to -usely, survey wet scope broad, the low price.
Description
Technical field
The utility model relates to a kind of soil instrument, and more specifically, the utility model relates to a kind of soil water suction sensor, it can be used for the monitoring of soil water content.
Background technology
Soil moisture has influence on the physical property of soil, govern the dissolving of nutrient, transfer and microbial activities in soil, and be the key factor constituting soil fertility, to the mensuration of soil moisture content to implementing precision agriculture, water-saving irrigation, improves agricultural production efficiency significant.
The most conventional soil moisture sensor is to use gypsum resistance bolck, its traditional structure foot: inside and outside two annulus being made up of stainless steel cloth are respectively as two electrodes, and make plaster block moisture transducer with gypsum parcel.The scope of this sensor test soil water suction is at 60-300Kpa.The soil that its energy test and comparison is dried, cost is relatively low, convenient management, is made without operations such as adding water after being buried in the earth.But can not Accurate Determining in 0-60Kpa soil water suction scope.Another problem is, soil conductivity temperature influence is bigger.
Utility model content
The purpose of this utility model is to provide a kind of soil water suction sensor, can be used for the monitoring of soil water content, it is achieved safe and reliable, the mensuration quick direct-reading of soil moisture.
A kind of soil water suction sensor involved by the utility model, including pot clay end, pot clay end has some tiny holes；Described pot clay end is contained within resistance, and this resistance is made up of the inserts being seated in pot clay end；Described pot clay end is located at a pvc pipe top, and this pvc pipe connects a discharge；Described discharge is provided with water filling port, and this water filling port is provided with rubber stopper；Described discharge side connects a piezoresistance sensor.
In a kind of soil water suction sensor described in the utility model, described pot clay end inserts is with SiO2Being main sand loam mixes as base-material with land plaster using the ratio of 3:1.8-2.2, meanwhile, is added with artificial structure's modifying agent in this base-material.
In a kind of soil water suction sensor described in the utility model, described piezoresistance sensor is solid state resistance pressure sensor.
The beneficial effects of the utility model are, can become more meticulous agricultural production requirement to meet by fast and convenient mensuration soil water content, and it need not be adopted soil sample, not destroy soil framework, and design easy to use, and hygrometric wider range is cheap.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
In figure: rubber stopper 11；Discharge 12；Piezoresistance sensor 13；Input line 131；Output line 132；Pvc pipe 14；Pot clay end 15.
Detailed description of the invention
Below in conjunction with the accompanying drawings, by detailed description below, to be more clearly understood that the above and other objects, features and advantages of the invention.Hereinafter, the preferred embodiment of the invention will be described in detail with reference to the accompanying drawings.
As it can be seen, a kind of soil water suction sensor in the invention preferred embodiment, its connection has power of alterating and direct current and signal conditioning circuit, and signal conditioning circuit connects a display device, and described power of alterating and direct current connects described signal conditioning circuit and display device.
Described soil water suction sensor includes that pot clay end 15, pot clay end 15 have some tiny holes；
Herein, described pot clay end 15 is contained within resistance, and this resistance is made up of the inserts being seated in pot clay end 15, and this inserts is with SiO2The sand loam being main mixes with the ratio of 3:1.8-2.2 with land plaster, as base-material, meanwhile, is added with artificial structure's modifying agent in this base-material.
, being seated in the filler in pot clay end 15 herein, be also added with fixative, described fixative is high molecular polymer.
Described pot clay end 15 is located at pvc pipe 14 top, and this pvc pipe 14 connects a discharge 12；
Described discharge 12 is provided with water filling port, and this water filling port is provided with rubber stopper 11；
Described discharge 12 side connects a piezoresistance sensor 13, and described piezoresistance sensor 13 connects an input line 131 and output line 132.
During use, rubber stopper 11 is opened, stopper again after filling water toward discharge 12, after the gas in discharge 12 is got rid of, pot clay end 15 is buried in the earth；Pot clay end 15 as above senses parts for instrument, after being flooded profit, water membrane is formed on hole, when the soil moisture sensor of full water and sealing inserts the undersaturated soil of moisture, moisture film just couples together with the soil water, makes the water of instrument internal produce negative pressure, and this suction function is in solid state resistance pressure sensor 13, negative pressure is converted into signal of telecommunication output and processes to signal conditioning circuit by piezoresistance sensor 13, and is shown by display device.
Described piezoresistance sensor 13 is solid state resistance pressure sensor 13, and it is the force sensing element utilizing the piezoresistive effect of monocrystalline silicon to make, and it is with monocrystalline silicon as matrix, spreads four equivalent strain resistors with integrated circuit processing technique, and forms differential Wheatstone bridge.
Although the preferred embodiment of the invention is disclosed for illustrative purpose, but those skilled in the art is to be understood that, on the premise of the scope and spirit created without departing substantially from appended claims present invention disclosed, various amendments, to increase and alter be all possible, be to be noted that without departing substantially from the above-mentioned various amendments on the premise of the invention scope and spirit, increase and alter and all should contain within the interest field of the invention.
Claims (2)
1.A kind ofSoil water suction sensor, it is characterised in that include that pot clay end, pot clay end have some tiny holes；Described pot clay end is contained within resistance, and this resistance is made up of the inserts being seated in pot clay end；Described pot clay end is located at a pvc pipe top, and this pvc pipe connects a discharge；Described discharge is provided with water filling port, and this water filling port is provided with rubber stopper；Described discharge side connects a piezoresistance sensor.
2. a kind of soil water suction sensor as claimed in claim 1, it is characterised in that described piezoresistance sensor is solid state resistance pressure sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620087579.4U CN205538789U (en) | 2016-01-29 | 2016-01-29 | Soil water suction sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620087579.4U CN205538789U (en) | 2016-01-29 | 2016-01-29 | Soil water suction sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205538789U true CN205538789U (en) | 2016-08-31 |
Family
ID=56771816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620087579.4U Expired - Fee Related CN205538789U (en) | 2016-01-29 | 2016-01-29 | Soil water suction sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205538789U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105806895A (en) * | 2014-12-31 | 2016-07-27 | 青岛中科软件股份有限公司 | High-resolution-degree soil sensor |
| CN106324045A (en) * | 2016-11-01 | 2017-01-11 | 西安理工大学 | Device for testing electric conductivity and soil-water characteristics of loess |
| CN106841321A (en) * | 2017-02-15 | 2017-06-13 | 上海花小二科技有限公司 | The manufacture craft of resistor-type soil moisture sensor |
| CN108917851A (en) * | 2018-08-21 | 2018-11-30 | 蒋昌霞 | A kind of regionality method of environmental monitoring |
| CN109682514A (en) * | 2019-03-13 | 2019-04-26 | 湖南大学 | High range high-precision tensometer and its use and saturation process based on fiber grating |
-
2016
- 2016-01-29 CN CN201620087579.4U patent/CN205538789U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105806895A (en) * | 2014-12-31 | 2016-07-27 | 青岛中科软件股份有限公司 | High-resolution-degree soil sensor |
| CN106324045A (en) * | 2016-11-01 | 2017-01-11 | 西安理工大学 | Device for testing electric conductivity and soil-water characteristics of loess |
| CN106841321A (en) * | 2017-02-15 | 2017-06-13 | 上海花小二科技有限公司 | The manufacture craft of resistor-type soil moisture sensor |
| CN108917851A (en) * | 2018-08-21 | 2018-11-30 | 蒋昌霞 | A kind of regionality method of environmental monitoring |
| CN108917851B (en) * | 2018-08-21 | 2020-12-08 | 广州大陌检测技术有限公司 | Regional environment monitoring method |
| CN109682514A (en) * | 2019-03-13 | 2019-04-26 | 湖南大学 | High range high-precision tensometer and its use and saturation process based on fiber grating |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 Termination date: 20170129 |