CN204389485U - A kind of soil moisture alarm sensor - Google Patents
A kind of soil moisture alarm sensor Download PDFInfo
- Publication number
- CN204389485U CN204389485U CN201420871311.0U CN201420871311U CN204389485U CN 204389485 U CN204389485 U CN 204389485U CN 201420871311 U CN201420871311 U CN 201420871311U CN 204389485 U CN204389485 U CN 204389485U
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- circuit board
- sensor body
- alarm
- sensor
- dicyclo
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- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
Abstract
The utility model discloses a kind of soil moisture alarm sensor, the enclosed inside of sensor body has U-shaped mercury manometr, the U-shaped pipe left arm closed upper part of U-shaped mercury manometr air column, left arm top is provided with alarm, pressure-sensitive film in the sealing-in of right arm top, the position pressure-sensitive film near sealing-in at right arm top is connected with zeroing pipe, zeroing pipe top seal becomes air collecting chamber, the outside surface of sensor body is coated with two dicyclo copper sheets, circuit board is fixed on insulating concrete cylinder wall, circuit board is made up of one piece of VCO chip E1648 and adjustment electric capacity, circuit board is connected with dicyclo copper sheet, protective cover is arranged on the bottom of sensor body, the output signal line be connected with circuit board.Sensor construction design of the present utility model is unique, and U-shaped mercury manometr can measure the moisture of different depth soil; Circuit design is ingenious; Air collecting chamber can impel alarm to give full play to alarm mechanism, can make the circuit reduction of automatic irrigation system.
Description
Technical field
The utility model belongs to sensor technical field, is specifically related to a kind of soil moisture alarm sensor.
Background technology
Often need in Agricultural Activities to detect soil territory arable farming water supply in media, such as detect at agricultural weather, in the application such as intelligent irrigation control system, all need a kind of accuracy, stability, the soil moisture content sensor that real-time is higher.Current this measuring method is very large by the impact of oscillator output parameter, therefore to the output amplitude of oscillator with export Nie anti-mate require very high.In different soils, a certain crop needs soil water potential value when irrigating to be basically identical.Therefore, when selecting the moisture transducer for automatic irrigation system, the humidity sensor that soil water amount signal is provided can preferably be selected.
Sensor based on electric capacity generally makes two probe and multiprobe form, or probe is made the co-axial line form of standard.Two probe and multiprobe sensor due to probe can not do oversize, so can only measure upper soll layer soil moisture, deep carbonate rocks can not be measured.In addition, because the price of pressure-active element is more expensive, the pressure resistance type soil moisture sensor general cost made of it is higher.Its electric signal produced had to pass through and amplifies modulation before entering program controller, and this will increase the cost of automatic irrigation system further.But also there is no warning device, therefore there is certain impracticability in above method in the practical application of China, is difficult to accomplish to promote the use of on a large scale.
Utility model content
For problems of the prior art, the purpose of this utility model is to provide a kind of soil moisture alarm sensor.
The technical scheme that the utility model is taked is:
A kind of soil moisture alarm sensor, it is characterized in that, comprise sensor body, circuit board, protective cover, described sensor body is the cylinder bodily form, the enclosed inside of sensor body has U-shaped mercury manometr, the U-shaped pipe left arm closed upper part of U-shaped mercury manometr air column, left arm top is provided with alarm, pressure-sensitive film in the sealing-in of right arm top, the position pressure-sensitive film near sealing-in at right arm top is connected with zeroing pipe, zeroing pipe top seal becomes air collecting chamber, the outside surface of sensor body is coated with two dicyclo copper sheets, circuit board is fixed on insulating concrete cylinder wall, circuit board is connected with dicyclo copper sheet, described protective cover is arranged on the bottom of sensor body, and protective cover middle position is provided with a circular hole, places the output signal line be connected with circuit board in circular hole.
Further, described dicyclo copper sheet is for be arrangeding in parallel.
Further, described protective cover is rubber material.
The beneficial effects of the utility model are:
Sensor construction design of the present utility model is unique, and U-shaped mercury manometr can measure the moisture of different depth soil, measures, use convenient for agricultural land soil or the moisture of greenhouse production matrix; Circuit board is connected with dicyclo copper sheet, and circuit design is ingenious; Zeroing pipe top seal becomes air collecting chamber, the gas content in air collecting chamber, alarm can be impelled to give full play to alarm mechanism, can make the circuit reduction of automatic irrigation system, reduce the cost of whole system.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
1, sensor; 2, U-shaped mercury manometr; 3, protective cover; 4, air column.
Embodiment
A kind of soil moisture alarm sensor, it is characterized in that, comprise sensor body, circuit board, protective cover, described sensor body is the cylinder bodily form, the enclosed inside of sensor body has U-shaped mercury manometr, the U-shaped pipe left arm closed upper part of U-shaped mercury manometr air column, left arm top is provided with alarm, pressure-sensitive film in the sealing-in of right arm top, the position pressure-sensitive film near sealing-in at right arm top is connected with zeroing pipe, zeroing pipe top seal becomes air collecting chamber, the outside surface of sensor body is coated with two dicyclo copper sheets, circuit board is fixed on insulating concrete cylinder wall, circuit board is connected with dicyclo copper sheet, described protective cover is arranged on the bottom of sensor body, and protective cover middle position is provided with a circular hole, places the output signal line be connected with circuit board in circular hole.
Further, described dicyclo copper sheet is for be arrangeding in parallel.
Further, described protective cover is rubber material.
Claims (3)
1. a soil moisture alarm sensor, it is characterized in that, comprise sensor body, circuit board, protective cover, described sensor body is the cylinder bodily form, the enclosed inside of sensor body has U-shaped mercury manometr, the U-shaped pipe left arm closed upper part of U-shaped mercury manometr air column, left arm top is provided with alarm, pressure-sensitive film in the sealing-in of right arm top, the position pressure-sensitive film near sealing-in at right arm top is connected with zeroing pipe, zeroing pipe top seal becomes air collecting chamber, the outside surface of sensor body is coated with two dicyclo copper sheets, circuit board is fixed on insulating concrete cylinder wall, circuit board is made up of one piece of VCO chip E1648 and adjustment electric capacity, circuit board is connected with dicyclo copper sheet, described protective cover is arranged on the bottom of sensor body, and protective cover middle position is provided with a circular hole, places the output signal line be connected with circuit board in circular hole.
2. a kind of new soil humidity sensor according to claim 1, it is characterized in that, described dicyclo copper sheet is for be arrangeding in parallel.
3. a kind of new soil humidity sensor according to claim 1, it is characterized in that, described protective cover is rubber material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420871311.0U CN204389485U (en) | 2014-12-31 | 2014-12-31 | A kind of soil moisture alarm sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420871311.0U CN204389485U (en) | 2014-12-31 | 2014-12-31 | A kind of soil moisture alarm sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204389485U true CN204389485U (en) | 2015-06-10 |
Family
ID=53362193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420871311.0U Expired - Fee Related CN204389485U (en) | 2014-12-31 | 2014-12-31 | A kind of soil moisture alarm sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204389485U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105807031A (en) * | 2014-12-31 | 2016-07-27 | 青岛中科软件股份有限公司 | Soil humidity alarm sensor |
-
2014
- 2014-12-31 CN CN201420871311.0U patent/CN204389485U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105807031A (en) * | 2014-12-31 | 2016-07-27 | 青岛中科软件股份有限公司 | Soil humidity alarm sensor |
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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: 20150610 Termination date: 20151231 |
|
| EXPY | Termination of patent right or utility model |