CN202433333U - Soil hygrometer - Google Patents
Soil hygrometer Download PDFInfo
- Publication number
- CN202433333U CN202433333U CN2012200254659U CN201220025465U CN202433333U CN 202433333 U CN202433333 U CN 202433333U CN 2012200254659 U CN2012200254659 U CN 2012200254659U CN 201220025465 U CN201220025465 U CN 201220025465U CN 202433333 U CN202433333 U CN 202433333U
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- China
- Prior art keywords
- porous ceramic
- ceramic pipe
- electrode
- lower seal
- glue layer
- 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
The utility model relates to a soil hygrometer, which comprises a probe, wherein the probe is composed of a porous ceramic pipe, conducting wires and two electrodes. The porous ceramic pipe is filled with an insulated glue layer. One end of the porous ceramic pipe is connected with an upper sealing plate, the other end of the porous ceramic pipe is connected with a lower sealing plate, and a hole is formed in the lower sealing plate. A first electrode is arranged between the porous ceramic pipe and the upper sealing plate, and an upper sealing conductive glue layer is arranged between the first electrode and the insulated glue layer in the porous ceramic pipe. A lower sealing conductive glue layer is arranged between the lower sealing plate and the insulated glue layer in the porous ceramic pipe, and a second electrode is arranged in the lower sealing conductive glue layer and penetrates out a hole. Two leading-out conducting wires are respectively connected with the electrodes. The hygrometer has the advantages of sensitivity in reaction, wide measured humidity range and convenience in use.
Description
Technical field
The utility model is applied to the mensuration of soil moisture, relates in particular to a kind of tensiometer.
Background technology
In the developmental process of plant, the humidity of soil play a part one very important.Different plants, even be different at different growth cycles to the humidity demand of soil.Soil moisture directly influences the absorption of nutriment and growing of flower plant, can also influence various nutrient availabilities in the soil simultaneously.Soil moisture is the project that agricultural, water conservancy, environment, meteorological departments must be measured.Soil moisture can be used as the early warning damage caused by a drought, and indication is irrigated, the important parameter of research soil and underground moisture motion etc.Tensiometer type and kind are a lot.At present more is to measure with tensiometer directly to draw moisture content value, and measurement range is limited, and more dried slightly soil just can not use, and it is very inconvenient also will often to add water during use; Other electrical measurement type hygrometer brings a high price, and is difficult to promote.
The utility model content
The technical matters that solves:The utility model provides a kind of tensiometer, and this hygrometer is quick on the draw, and the humidity value field width of measurement is easy to use.
Technical scheme:Tensiometer comprises a probe, and said probe is made up of porous ceramic pipe, lead and two electrodes; Be filled with the insulation glue-line in the said porous ceramic pipe; One end of porous ceramic pipe links to each other with upper sealing panel, and the other end is provided with the lower seal plate, and the lower seal plate is provided with the hole; Be provided with first electrode between porous ceramic pipe and the upper sealing panel, and be provided with the sealing conductive adhesive layer between the insulation glue-line in first electrode and the porous ceramic pipe; Be provided with the lower seal conductive adhesive layer between the insulation glue-line in lower seal plate and the porous ceramic pipe, second electrode is located at the interior also perforation of lower seal conductive adhesive layer and is gone out; Drawing lead for two is connected with electrode respectively.
Said probe diameter 20mm; The shape of electrode is aciculiform, sheet ring shape.
During use, dig the round hole of a diameter 15-20mm earlier at the soil position that needs are measured, the hack in some original places is spread in the inside, pours into low amounts of water again, stirs into cement paste; Then hygrometer is nuzzled, between hygrometer and soil, insert some dry crushing soil again, and compacting, they are closely contacted; Only stay two extension lines at last outside, do to measure usefulness, simultaneously the hole is tamped with dry ground, avoid the day water directly to flow down.Second day, the moisture of hygrometer and surrounding soil reached balance, can use.Same with other measuring method, all to do in advance the calibration curve between a local soil moisture content and the hygroscopic electric weight, concern as long as record later the percentage (%) that electric weight just can draw with water cut.
Because soil moisture is how much relevant with its conductive capability.Conductivity is the solution conductivity ability with numeral.Unit is with every centimetre of milli Siemens (mS/cm) expression.Soil moisture after a little while, conductivity is low, otherwise, soil moisture for a long time, conductivity is high.Therefore, what of soil moisture content are the measurement conductivity promptly can indicate.
Beneficial effect:Adopt porous ceramic pipe to conduct carrier as moisture, it can be permeable airtight, and the porous ceramic pipe inner pore is measured and is full of water earlier; Form water membrane, when contacting, closely be connected with hydrone tension force in the soil particle with soil; Thereby electrode and soil water balance time weak point, reaction is fast;
Detecting head surface is long-pending big, improves electric conductivity;
Seal with conducting resinl when porous ceramic pipe is connected with upper and lower two electrodes, can make electrode and porous ceramic pipe have good current potential and be connected,, thereby can in soil, use than lack of water with the assurance electric conductivity;
Because this hygrometer volume is little, install, use all very convenient, so long as soil does not freeze near the position of installing, can use for a long time.
Description of drawings
Fig. 1 is the synoptic diagram of the utility model.Among the figure: lower seal plate 1, the second electrode 2, porous ceramic pipe 3, lower seal conductive adhesive layer 4, the first electrodes 5, the insulation glue-line 6, upper sealing panel 7, the second is drawn lead 8, the first and is drawn lead 9, on seal conductive adhesive layer 10.
Embodiment
Embodiment 1
Tensiometer; Said hygrometer comprises a probe; Said probe is made up of porous ceramic pipe 3, lead and two electrodes, is filled with insulation glue-line 6 in the said porous ceramic pipe 3, and an end of porous ceramic pipe 3 links to each other with upper sealing panel 7; The other end is provided with lower seal plate 1, and lower seal plate 1 is provided with the hole; Be provided with first electrode 5 between porous ceramic pipe and the upper sealing panel, and be provided with sealing conductive adhesive layer 10 between the insulation glue-line 6 in first electrode 5 and the porous ceramic pipe; Being provided with lower seal conductive adhesive layer 4, the second electrodes 2 between the insulation glue-line 6 in lower seal plate 1 and the porous ceramic pipe is located in the lower seal conductive adhesive layer 4 and perforation and going out; Drawing lead for two is connected with electrode respectively; First draws lead 9 is connected with first electrode 5, and second draws lead 8 is connected with second electrode 2.Draw lead for two and lead epiphase even with electricity again.Probe diameter 20mm; The shape of electrode is aciculiform, sheet ring shape.
Claims (2)
1. tensiometer; It is characterized in that said hygrometer comprises a probe; Said probe is made up of porous ceramic pipe (3), lead and two electrodes, is filled with insulation glue-line (6) in the said porous ceramic pipe (3), and an end of porous ceramic pipe (3) links to each other with upper sealing panel (7); The other end is provided with lower seal plate (1), and lower seal plate (1) is provided with the hole; Be provided with first electrode (5) between porous ceramic pipe and the upper sealing panel, and be provided with sealing conductive adhesive layer (10) between the insulation glue-line (6) in first electrode (5) and the porous ceramic pipe; Be provided with lower seal conductive adhesive layer (4) between the insulation glue-line (6) in lower seal plate (1) and the porous ceramic pipe, second electrode (2) is located at the interior also perforation of lower seal conductive adhesive layer (4) and is gone out; Drawing lead for two is connected with electrode respectively.
2. tensiometer according to claim 1, the shape that it is characterized in that said electrode are aciculiform, sheet ring shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200254659U CN202433333U (en) | 2012-01-19 | 2012-01-19 | Soil hygrometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200254659U CN202433333U (en) | 2012-01-19 | 2012-01-19 | Soil hygrometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202433333U true CN202433333U (en) | 2012-09-12 |
Family
ID=46782772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200254659U Expired - Fee Related CN202433333U (en) | 2012-01-19 | 2012-01-19 | Soil hygrometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202433333U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106018483A (en) * | 2016-07-06 | 2016-10-12 | 江苏智慧农业技术有限公司 | Soil humidity meter for field planting |
-
2012
- 2012-01-19 CN CN2012200254659U patent/CN202433333U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106018483A (en) * | 2016-07-06 | 2016-10-12 | 江苏智慧农业技术有限公司 | Soil humidity meter for field planting |
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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: 20120912 Termination date: 20130119 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |