CN102735817B - A kind of soil moisture measuring instrument - Google Patents
A kind of soil moisture measuring instrument Download PDFInfo
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- CN102735817B CN102735817B CN201210204002.3A CN201210204002A CN102735817B CN 102735817 B CN102735817 B CN 102735817B CN 201210204002 A CN201210204002 A CN 201210204002A CN 102735817 B CN102735817 B CN 102735817B
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- probe
- soil moisture
- data acquisition
- acquisition display
- display instrument
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Abstract
The invention discloses a kind of soil moisture measuring instrument, including soil moisture sensor, expander tool, data acquisition display instrument, wherein, the signal between described soil moisture sensor and data acquisition display instrument passes through wired connection mode or wireless transmission method.The detector of the present invention is with low cost, certainty of measurement is high, easy to use.
Description
Technical field
The present invention relates to a kind of soil moisture measuring instrument, belong to agricultural clothing arts.
Background technology
In agricultural production, it is often necessary to measuring soil moisture, the method for traditional measurement soil moisture is ring
The skill in using a kitchen knife in cookery, i.e. utilizes cutting ring sample sample to dry the method calculating soil contained humidity.Along with the development of science and technology,
People find again to use time domain method (TTR), frequency domain method (FDR) and radioisotopic neutron method
Measure soil moisture.
In prior art, radioisotopic neutron method expensive equipment and lower radioactivity can be left in soil
Material, pollutes soil, and then has influence on the safety of agricultural product；And time domain method (TTR) is used
Equipment the most costly, be unsuitable for promoting the use of.
Summary of the invention
The invention aims to the defect existing for soil moisture detection equipment in solution prior art, carry
Use the detector of frequency domain method principle detection soil moisture content to solve the problems referred to above for a kind of.
To achieve these goals, technical scheme is as follows:
A kind of soil moisture measuring instrument, including:
Soil moisture sensor, the electronic circuit device plate including shell, being arranged at enclosure and shielding electricity
Cable, being arranged at the identical probe of 2-10 root of outer casing bottom, described electronic circuit device plate is provided with
High frequency generator；The a length of 10-100mm of described probe, a diameter of 2-8mm；
Expander tool；
Data acquisition display instrument, including the single channel harvester electrically connected, memorizer, probe, instrument；
Wherein, the signal between described soil moisture sensor and data acquisition display instrument passes through wired
Connected mode or wireless transmission method.
Radio connection in the present invention, between described soil moisture sensor and data acquisition display instrument
Including infrared transmission and Bluetooth transmission.
In the present invention, described high frequency generator is crystal oscillator.
In the present invention, described expander tool is by geotome, sensor depth measurement tool kit.
In the present invention, the material of described probe is rustless steel or aluminium alloy.
In the present invention, a diameter of 20-80mm of described geotome, a length of 0.5-2.0m.
In the present invention, when the quantity of described probe is three, three probes are point-blank equidistantly positioned,
A middle probe is used as positive pole, and two probes of both sides are negative pole, when the quantity of probe is more than three,
A piece probe is positioned at the circumscribed circle home position of the regular polygon being made up of remaining probe, described in be in the most
The probe of limit shape circumscribed circle home position is set to positive pole, and remaining probe is set to negative pole.
In the present invention, the described probe as positive pole is 3-30mm with the distance of remaining probe being used as negative pole.
The invention have the benefit that with low cost, certainty of measurement is high, easy to use.
Accompanying drawing explanation
Fig. 1 is the profile of soil moisture sensor in the present invention；
Fig. 2 is the expander tool installation diagram when fetching earth in the present invention；
Fig. 3 is the expander tool installation diagram when detection in the present invention；
Fig. 4 is the structural representation of data acquisition display instrument in the present invention；
The structural representation of housing bottom when Fig. 5 is that in the present invention, the probe of soil moisture sensor is four.
Detailed description of the invention
By making the architectural feature to the present invention and effect of being reached have a better understanding and awareness, in order to
Preferred embodiment and accompanying drawing coordinate detailed description, are described as follows:
Referring to Fig. 1, the soil moisture measuring instrument of the present invention, including: soil moisture sensor 100, extension
Instrument and data display instrument table 400；
Wherein, soil moisture sensor 100 includes shell 110, is arranged on the electric wire within shell 110
Road device board 120 and shielded cable, and be arranged on outer casing bottom identical rustless steel probe 131,
132 and 133, probe length is 80mm, a diameter of 5mm, and probe 131,132 and 133 is in same
On straight line, probe 131 and probe 132, the distance between probe 132 and probe 133 is 20mm,
Setting probe 32 is positive pole, and probe 31 and probe 33 are negative pole；Fill on electronic circuit device plate 120
There is crystal oscillator 121.
Referring to Fig. 2, geotome 300 is arranged on sensor depth measurement tool kit 200, and geotome 300 is straight
Footpath is 50mm, and the total length of geotome 300 and sensor depth measurement tool kit 200 is 2m, Ke Yijian
Survey the moisture of the soil of different depth.
Referring to Fig. 3, when carrying out the detection of soil water content, from sensor depth measurement tool kit 200
Unload geotome 300, install soil moisture sensor 100, data acquisition is shown instrument 400 and soil
Earth moisture transducer 100 runs wires to, certainly, and data acquisition display instrument 400 and soil moisture sensing
Signal transmission between device 100 can also use wirelessly, such as bluetooth, infrared, so can expand
The scope used.
Referring to Fig. 4, data acquisition display instrument 400 is by probe 410, single channel harvester 420, instrument 430
Form with memorizer 440 electrical connection.
In the present invention, the number of probes bottom housing 110 can also is that 4-10 root, when number of probes is 4
During root, referring to Fig. 5, probe 134, probe 135, probe 136 are arranged in equilateral triangle, probe 137
It is positioned at the circumscribed circle home position of the equilateral triangle that probe 134, probe 135 and probe 136 are formed, if
Determining probe 137 is positive pole, and remaining probe is negative pole.
In sum, only presently preferred embodiments of the present invention, not it is used for limiting the model that the present invention implements
Enclose, all impartial changes done according to the shape described in scope of the invention as claimed, structure, feature and spirit
With modification, all should be included in scope of the presently claimed invention.
Claims (2)
1. a soil moisture measuring instrument, it is characterised in that including: soil moisture sensor, bag
Include shell, the electronic circuit device plate being arranged at enclosure and shielded cable, be arranged at shell
The identical probe of 2-10 root of bottom, described electronic circuit device plate is provided with high frequency vibrating
Swing device；The a length of 10-100mm of described probe, a diameter of 2-8mm；
Expander tool, data acquisition display instrument, including electrical connection single channel harvester, memorizer,
Probe, instrument；
Wherein, the signal between described soil moisture sensor and data acquisition display instrument passes through
Wired connection mode or wireless transmission method；When the quantity of described probe is three, three probes
Point-blank being equidistantly positioned, a middle probe is used as positive pole, two spies of both sides
Pin is negative pole, and when the quantity of probe is more than three, a probe is positioned at by remaining probe institute group
The circumscribed circle home position of regular polygon become, described in be in regular polygon circumscribed circle home position
Probe be set to positive pole, remaining probe is set to negative pole；
Radio connection between described soil moisture sensor and data acquisition display instrument includes
Infrared transmission and Bluetooth transmission；Described high frequency generator is crystal oscillator；
Described expander tool is made up of geotome, sensor depth measurement tool kit；
The material of described probe is rustless steel or aluminium alloy.
Detector the most according to claim 1, it is characterised in that described geotome straight
Footpath is 20-80mm, a length of 0.5-2.0m.
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 CN102735817A (en) | 2012-10-17 |
| CN102735817B true CN102735817B (en) | 2016-12-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210204002.3A Active CN102735817B (en) | 2012-06-19 | 2012-06-19 | A kind of soil moisture measuring instrument |
Country Status (1)
| Country | Link |
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| CN (1) | CN102735817B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104792969B (en) * | 2015-04-22 | 2016-08-31 | 三峡大学 | A kind of soil suction value on-site wireless based on Temperature Humidity Sensor measures 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 |
Family Cites Families (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 |
| CN101281152B (en) * | 2008-06-03 | 2012-05-30 | 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 |
| CN102023182B (en) * | 2010-10-29 | 2012-11-07 | 华南农业大学 | True root mean square value detection-based soil moisture sensor |
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2012
- 2012-06-19 CN CN201210204002.3A patent/CN102735817B/en active Active
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| CN102735817A (en) | 2012-10-17 |
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