CN102735817A - Soil water content detector - Google Patents
Soil water content detector Download PDFInfo
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- CN102735817A CN102735817A CN2012102040023A CN201210204002A CN102735817A CN 102735817 A CN102735817 A CN 102735817A CN 2012102040023 A CN2012102040023 A CN 2012102040023A CN 201210204002 A CN201210204002 A CN 201210204002A CN 102735817 A CN102735817 A CN 102735817A
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Abstract
The invention discloses a soil water content detector. The soil water content detector comprises a soil water content sensor, expansion tools, and a data acquisition and displaying instrument. The signal transmission between the soil water content sensor and the data acquisition and displaying instrument is realized in a wired connection manner or a wireless transmission manner. The detector provided by the invention is advantaged in low cost, high measuring precision, and convenient application.
Description
Technical field
The present invention relates to a kind of soil moisture detection appearance, belong to agricultural equipment field.
Background technology
In agricultural production, often need measured soil moisture, the method for traditional measured soil moisture is a core cutter method, promptly utilizes the cutting ring soil sampling to dry the method for calculating the soil contained humidity.Along with development of science and technology, people find to use time domain method (TTR), frequency domain method (FDR) and radioactive isotope NEUTRON METHOD to come measured soil moisture again.
In the prior art, radioactive isotope NEUTRON METHOD instrument is expensive and can in soil, leave over radiomaterial down, soil is polluted, and then have influence on the security of agricultural product; And the used equipment of time domain method (TTR) is also comparatively expensive, is inappropriate for and promotes the use of.
Summary of the invention
The objective of the invention is in order to solve the existing defective of soil moisture detection equipment in the prior art, provide a kind of detector that adopts the frequency domain method principle to detect moisture in the soil to solve the problems referred to above.
To achieve these goals, technical scheme of the present invention is following:
A kind of soil moisture detection appearance comprises:
Soil moisture sensor, comprise shell, be arranged at enclosure electronic circuit device plate and shielded cable, be arranged at the identical probe of 2-10 root of outer casing bottom, said electronic circuit device plate is provided with high frequency oscillator; The length of said probe is 10-100mm, and diameter is 2-8mm;
Expander tool;
The data acquisition Displaying Meter comprises single channel collector, storer, probe, the instrument of electrical connection;
Wherein, the signal transmission between said soil moisture sensor and the data acquisition Displaying Meter is through wired connection mode or wireless transmission method.
Among the present invention, the wireless connections mode between said soil moisture sensor and the data acquisition Displaying Meter comprises infrared transmission and Bluetooth transmission.
Among the present invention, said high frequency oscillator is a crystal oscillator.
Among the present invention, said expander tool is by geotome, sensor depth measurement combination tool.
Among the present invention, the material of said probe is stainless steel or aluminium alloy.
Among the present invention, the diameter of said geotome is 20-80mm, and length is 0.5-2.0m.
Among the present invention, when the quantity of said probe is three, three equidistant point-blank settings of probe; A middle probe is as anodal; Two probes of both sides are negative pole, and when the quantity of probe surpassed three, a probe was positioned at the circumscribed circle home position of the regular polygon of being made up of all the other probes; The said probe that is in regular polygon circumscribed circle home position is made as positive pole, and all the other probes are made as negative pole.
Among the present invention, said is 3-30mm as anodal probe and all the other distances as the probe of negative pole.
The beneficial effect that the present invention has: with low cost, measuring accuracy is high, easy to use.
Description of drawings
Fig. 1 is the sectional view of soil moisture sensor among the present invention;
Fig. 2 is the wiring layout of expander tool when fetching earth among the present invention;
Fig. 3 is the wiring layout of expander tool among the present invention when detecting;
Fig. 4 is the structural representation of data acquisition Displaying Meter among the present invention;
The structural representation of housing bottom when Fig. 5 is four for the probe of soil moisture sensor among the present invention.
Embodiment
For making architectural feature of the present invention and the effect reached there are further understanding and understanding, cooperate detailed explanation, explain as follows in order to preferred embodiment and accompanying drawing:
Referring to Fig. 1, soil moisture detection appearance of the present invention comprises: soil moisture sensor 100, expander tool and data presentation instrument 400;
Wherein, soil moisture sensor 100 comprises shell 110, is arranged on the electronic circuit device plate 120 and the shielded cable of shell 110 inside, and the identical stainless steel probe 131,132 and 133 that is arranged on outer casing bottom; Probe length is 80mm, and diameter is 5mm, and probe 131,132 and 133 is on the same straight line; Probe 131 and probe 132; Distance between probe 132 and the probe 133 is 20mm, and it is anodal setting probe 32, and probe 31 is negative pole with probe 33; Crystal oscillator 121 is housed on the electronic circuit device plate 120.
Referring to Fig. 2, geotome 300 is installed on the sensor depth measurement combination tool 200, and geotome 300 diameters are 50mm, and the total length of geotome 300 and sensor depth measurement combination tool 200 is 2m, can detect the moisture of different depth of soil.
Referring to Fig. 3, when carrying out the detection of soil water content, unload geotome 300 from sensor depth measurement combination tool 200; Install soil moisture sensor 100; Data acquisition Displaying Meter 400 is connected with soil moisture sensor 100 usefulness electric wires, and certainly, the signal transmission between data acquisition Displaying Meter 400 and the soil moisture sensor 100 also can be adopted wireless mode; Like bluetooth, infrared, can enlarge the scope of use like this.
Referring to Fig. 4, data acquisition Displaying Meter 400 is electrically connected by probe 410, single channel collector 420, instrument 430 and storer 440 and forms.
Among the present invention; The number of probes of housing 110 bottoms can also be the 4-10 root, when number of probes is 4, referring to Fig. 5; Probe 134, probe 135, probe 136 are arranged in equilateral triangle; Probe 137 is positioned at the circumscribed circle home position of the equilateral triangle that probe 134, probe 135 and probe 136 formed, and setting probe 137 be positive pole, and all the other probes are negative pole.
In sum; Be merely preferred embodiment of the present invention; Be not to be used for limiting the scope that the present invention implements, all equalizations of doing according to the described shape of claim scope of the present invention, structure, characteristic and spirit change and modify, and all should be included in the claim scope of the present invention.
Claims (8)
1. a soil moisture detection appearance is characterized in that, comprising:
Soil moisture sensor, comprise shell, be arranged at enclosure electronic circuit device plate and shielded cable, be arranged at the identical probe of 2-10 root of outer casing bottom, said electronic circuit device plate is provided with high frequency oscillator; The length of said probe is 10-100mm, and diameter is 2-8mm;
Expander tool;
The data acquisition Displaying Meter comprises single channel collector, storer, probe, the instrument of electrical connection;
Wherein, the signal transmission between said soil moisture sensor and the data acquisition Displaying Meter is through wired connection mode or wireless transmission method.
2. detector according to claim 1 is characterized in that, the wireless connections mode between said soil moisture sensor and the data acquisition Displaying Meter comprises infrared transmission and Bluetooth transmission.
3. detector according to claim 1 is characterized in that, said high frequency oscillator is a crystal oscillator.
4. detector according to claim 1 is characterized in that, said expander tool is made up of geotome, sensor depth measurement combination tool.
5. detector according to claim 1 is characterized in that, the material of said probe is stainless steel or aluminium alloy.
6. detector according to claim 4 is characterized in that, the diameter of said geotome is 20-80mm, and length is 0.5-2.0m.
7. according to claim 1 or 5 described detectors, it is characterized in that, when the quantity of said probe is three; Three equidistant point-blank settings of probe, a middle probe is as anodal, and two probes of both sides are negative pole; When the quantity of probe surpasses three; A probe is positioned at the circumscribed circle home position of the regular polygon of being made up of all the other probes, and the said probe that is in regular polygon circumscribed circle home position is made as positive pole, and all the other probes are made as negative pole.
8. according to claim 1 or 5 or 6 described detectors, it is characterized in that said is 3-30mm as anodal probe and all the other distances as the probe of negative pole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210204002.3A CN102735817B (en) | 2012-06-19 | 2012-06-19 | A kind of soil moisture measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210204002.3A CN102735817B (en) | 2012-06-19 | 2012-06-19 | A kind of soil moisture measuring instrument |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102735817A true CN102735817A (en) | 2012-10-17 |
| CN102735817B CN102735817B (en) | 2016-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210204002.3A Active CN102735817B (en) | 2012-06-19 | 2012-06-19 | A kind of soil moisture measuring instrument |
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| CN (1) | CN102735817B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104792969A (en) * | 2015-04-22 | 2015-07-22 | 三峡大学 | Temperature/humidity sensor-based in-situ wireless soil suction value measurement system |
| CN106680318A (en) * | 2016-12-23 | 2017-05-17 | 天津市土壤肥料工作站 | Multilayer multi-probe fast detection method for soil moisture and multilayer multi-probe fast detection device for soil moisture |
| CN110140645A (en) * | 2019-05-20 | 2019-08-20 | 中国农业科学院农田灌溉研究所 | A kind of embedded auxiliary device and its method for embedding of probe-type soil moisture sensor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5260666A (en) * | 1991-09-23 | 1993-11-09 | Troxler Electronic Laboratories, Inc. | Capacitance monitor for soil moisture |
| CN2422643Y (en) * | 2000-05-25 | 2001-03-07 | 中国农业大学 | Soil moisture measuring sensor |
| CN101281152A (en) * | 2008-06-03 | 2008-10-08 | 华南农业大学 | Soil moisture sensor |
| CN101782535A (en) * | 2010-03-17 | 2010-07-21 | 中国农业大学 | Sensor for TDR soil moisture measuring instrument based on phase detection principle |
| CN102023182A (en) * | 2010-10-29 | 2011-04-20 | 华南农业大学 | True root mean square value detection-based soil moisture sensor |
-
2012
- 2012-06-19 CN CN201210204002.3A patent/CN102735817B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5260666A (en) * | 1991-09-23 | 1993-11-09 | Troxler Electronic Laboratories, Inc. | Capacitance monitor for soil moisture |
| CN2422643Y (en) * | 2000-05-25 | 2001-03-07 | 中国农业大学 | Soil moisture measuring sensor |
| CN101281152A (en) * | 2008-06-03 | 2008-10-08 | 华南农业大学 | Soil moisture sensor |
| CN101782535A (en) * | 2010-03-17 | 2010-07-21 | 中国农业大学 | Sensor for TDR soil moisture measuring instrument based on phase detection principle |
| CN102023182A (en) * | 2010-10-29 | 2011-04-20 | 华南农业大学 | True root mean square value detection-based soil moisture sensor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104792969A (en) * | 2015-04-22 | 2015-07-22 | 三峡大学 | Temperature/humidity sensor-based in-situ wireless soil suction value measurement system |
| CN106680318A (en) * | 2016-12-23 | 2017-05-17 | 天津市土壤肥料工作站 | Multilayer multi-probe fast detection method for soil moisture and multilayer multi-probe fast detection device for soil moisture |
| CN110140645A (en) * | 2019-05-20 | 2019-08-20 | 中国农业科学院农田灌溉研究所 | A kind of embedded auxiliary device and its method for embedding of probe-type soil moisture sensor |
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| Publication number | Publication date |
|---|---|
| CN102735817B (en) | 2016-12-21 |
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