CN200972465Y - Four-electrode soil salt investigating sensor - Google Patents
Four-electrode soil salt investigating sensor Download PDFInfo
- Publication number
- CN200972465Y CN200972465Y CN 200620126503 CN200620126503U CN200972465Y CN 200972465 Y CN200972465 Y CN 200972465Y CN 200620126503 CN200620126503 CN 200620126503 CN 200620126503 U CN200620126503 U CN 200620126503U CN 200972465 Y CN200972465 Y CN 200972465Y
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- CN
- China
- Prior art keywords
- soil
- salt
- insulation tube
- soil salt
- electrode
- 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
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Abstract
A four-electrode sensor for measuring soil salt comprising a metal tube, an insulation tube, an outgoing wire and four electrodes, etc. The device is characterized in that the four electrodes are all in loop shapes on the exterior of the insulation tube, and the conducting wires of the loop electrodes are all outgoing from the interior of the insulation tube and the metal tube, and temperature-sensitive components can be arranged inner of the insulation tube. The coordinated utilization of this utility model of four-electrode soil salt analyzer swiftly measures the salt content and conductivity of the soil. The device features in reliable measurement results, fast response speed to the salt content changes of the field soil and is free of errors of salt accumulations, so the device is a novel device specially used for measuring soil salt and conductivity of soil.
Description
One, technical field
The utility model relates to a kind of measuring element, particularly relates to the senser element of a kind of measured soil conductivity and soil salt.
Two, background technology
The salt content of soil has material impact to its chemistry, physics, biological nature and soil productivity level.Carry out saline-alkali soil investigation, assess farmland quality, determine the saline-alkali soil resolution, carry out soil degradation monitoring, determine that the field prevent salt-control salt measure, carries out work such as the accurate management of agricultural, the variation that all needs the measured soil salt content and monitor soil salt concentration.
The method of existing measured soil salt content mainly contains following several:
The routine sampling method---the cycle of this method mensuration soil salt is long, wastes time and energy;
The major defect of porous ceramics chip soil salt sensor determination method---this method is that required equilibration time is long, and is poor to the responding ability of field soil salinity change process, can't accurately measure soil salt variation faster; And when porous ceramics chip soil salt sensor place into the soil carry out the some cycles METHOD FOR CONTINUOUS DETERMINATION after, the salinity that enclosed type electric is led cell cavity body absorption is difficult to can cause bigger error at measurment (mainly being positive error) by diffusion motion fully and the soil conservation balance.
Adopt four electrode method to measure soil salt content,, can not cause error at measurment because of being embedded in for a long time in the soil to quick, the no time lag of salt content change response of soil.Both be fit to the fixed point of soil salt content, long-term, continuous, kinetic measurement, and also be fit to disposable soil salt content and measure.Measuring speed is fast, and measurement result is reliable, and no salinity cumulative errors are a kind of new methods that soil salt content is measured.
CN 03262309.7 discloses a kind of soil conductivity real-time detector, wherein said sensor adopt an insulation rod and four probes design proposal.The volume of this design proposal is big, portably use inconvenience; Can't directly measure the soil conductivity of each layer below the top layer, need to adopt theoretical and the realization of empirical Calculation method, the resolution that the soil profile layering is measured is lower, and measuring error is bigger.
Three, summary of the invention
It is more reasonable, novel that purpose of design of the present utility model provides a kind of structure, can with the matching used four electrode soil salt determination sensors of four electrode soil salt analyzers, thereby soil salt content is carried out the mobile of simple and convenient or fixed point is measured.
Technical solution of the present utility model is: a kind of by metal tube (1), insulation tube (2), draw the four electrode soil salt determination sensors that lead (5) and 4 electrodes etc. constitute, it is characterized in that 4 electrodes in the outside of insulation tube (2) all in the form of a ring, the lead of ring electrode (3) is drawn from the inside of insulation tube (2) and metal tube (1).
The environment temperature change is carried out the temperature correction of conductivity measurements to the influence of conductivity measurements when measuring in order to eliminate, and in the inside of insulation tube (2) a temperature sensitive device (4) has been installed also.
Four, description of drawings
Fig. 1 is the structural representation of four electrode soil salt determination sensors.(1) is metal tube among the figure, and (2) are insulation tube, and (3) are ring electrode, has 4, and (4) are temperature sensitive device, and (5) are for drawing lead.
Five, embodiment
Embodiment 1:
With external diameter is 6mm, and length is that the stainless-steel tube of 150mm is as metal tube (1); With external diameter is 6mm, length be the high-strength engineering plastic pipe of 55mm as insulation tube (2), the sealing of an end of insulation tube (2), the other end is connected with metal tube (1); Outside surface at insulation tube (2) puts 4 stainless steel ring-type electrodes (3), and the lead of ring electrode (3) is drawn from the inside of insulation tube (2) and metal tube (1).
Embodiment 2:
The environment temperature change is to the influence of conductivity measurements when measuring in order to eliminate, carry out the temperature correction of conductivity measurements, a temperature sensitive device (4) also has been installed in the head of insulation tube (2), and temperature sensitive device (4) adopts the ordinary semiconductor thermistor, or other heat detector spares; All the other are with embodiment 1.
The utility model and the supporting use of four electrode soil salt analyzers, the salinity of measured soil and conductivity fast, measurement result is reliable, and is fast to the response speed that the field soil salinity changes, no salinity cumulative errors are a kind of new sensors of soil salt content and conductance measurement special use.The utility model volume is little, can effectively realize flowing and one-point measurement of stratified soil salt content.
Claims (2)
- One kind by metal tube (1), insulation tube (2), draw the four electrode soil salt determination sensors that lead (5) and 4 electrodes etc. constitute, it is characterized in that 4 electrodes in the outside of insulation tube (2) all in the form of a ring, the lead of ring electrode (3) is drawn from the inside of insulation tube (2) and metal tube (1).
- 2. four electrode soil salt determination sensors as claimed in claim 1 is characterized in that the inside of insulation tube (2) is equipped with a temperature sensitive device (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620126503 CN200972465Y (en) | 2006-11-16 | 2006-11-16 | Four-electrode soil salt investigating sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620126503 CN200972465Y (en) | 2006-11-16 | 2006-11-16 | Four-electrode soil salt investigating sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200972465Y true CN200972465Y (en) | 2007-11-07 |
Family
ID=38883720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620126503 Expired - Fee Related CN200972465Y (en) | 2006-11-16 | 2006-11-16 | Four-electrode soil salt investigating sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200972465Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108318536A (en) * | 2018-02-02 | 2018-07-24 | 张立红 | Intelligent online analyzer is popped one's head in |
| CN108802104A (en) * | 2017-04-27 | 2018-11-13 | 东莞市盛山电子科技有限公司 | Easy-to-use type high-precision high range conductance salinity measurement equipment |
-
2006
- 2006-11-16 CN CN 200620126503 patent/CN200972465Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108802104A (en) * | 2017-04-27 | 2018-11-13 | 东莞市盛山电子科技有限公司 | Easy-to-use type high-precision high range conductance salinity measurement equipment |
| CN108318536A (en) * | 2018-02-02 | 2018-07-24 | 张立红 | Intelligent online analyzer is popped one's head in |
| CN108318536B (en) * | 2018-02-02 | 2020-03-31 | 张立红 | Intelligent on-line analyzer probe |
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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: 20071107 Termination date: 20141116 |
|
| EXPY | Termination of patent right or utility model |