CN103217510B - Soil hygrometer - Google Patents
Soil hygrometer Download PDFInfo
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- CN103217510B CN103217510B CN201310080544.9A CN201310080544A CN103217510B CN 103217510 B CN103217510 B CN 103217510B CN 201310080544 A CN201310080544 A CN 201310080544A CN 103217510 B CN103217510 B CN 103217510B
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- outer frame
- frame body
- probe
- horizontal push
- tensiometer
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Abstract
The invention provides a soil hygrometer which is suitable for measuring an over-wet land surface environment, which comprises a housing body with horizontal push slabs vertically placed inside, several probe pedestals at different depths on the horizontal push slab, and a horizontal drive unit, wherein, at least one probe pedestal is installed with a soil humidity probe, and the horizontal push slab can be pushed by the horizontal drive unit, thereby the soil humidity probe can protrude from the side surface of the housing body; the soil humidity probe is also connected to a data processing module. The invention has an enclosed compact structure and employs a one-piece modularized waterproof and antifreeze design, and can be directly inserted into the area to be measured for long time work, and the laterally slidable probe set improves the measurement flexibility, thereby solving the big measurement error problem caused by the penetration of the land surface ponding in the over-wet land surface environment downwards along slits. The soil hygrometer is suitable for measuring soil humidity of different depth positions in the over-wet land surface environment.
Description
Technical field
The present invention relates to a kind of tensiometer, particularly a kind of tensiometer that can show to measure in environment in over-wet land.
Background technology
The variation of soil moisture applies control for the flux of energy of land-atmosphere, may declare publicly the impact of weather for soil.Soil moisture is by redistributing the infiltration on earth's surface, rainwash and evaporation rainfall, and soil moisture has affected hydrologic cycle and the energy exchange in different time and space scale.Therefore, very important for the accurate measurement of soil moisture.
But in the table environment of over-wet land, due to ground surface ponding and hole infiltration, conventional soil humidity measurement instrument device tends to occur larger error.In the time of the table environment in-situ monitoring soil moisture of over-wet land, conventional way is at present, digs the hole of approximately a cubic metre on ground, and then soil moisture probe is installed in predetermined depth position, and landfill afterwards recovers earth's surface original appearance as far as possible.The data that probe gathers are transferred in data box by data line, and are regularly obtained by monitoring personnel.
But, because data box is settled highly generally on the low side, rainy season is when arrival, near the river level causing due to rainfall goes up, and then be that earth's surface water level obviously rises, the situation of flooding data box occurs repeatedly, due to leakproofness and waterproof measure inadequate, it is very risky that long-time sequence Monitoring Data is lost.Inevitable gap during due to landfill, enters surface pond, has caused very large measuring error.
In addition, existing mode workload of digging pit is large, and equipment placement complexity has larger disturbance to habitat, original position earth's surface, is also distinct issues.
Summary of the invention
For the deficiencies in the prior art, the object of the invention is to: a kind of tensiometer is provided, solves in over-wet land table environment, soil moisture monitoring exists under tale quale large error, large workload, equipment placement complexity, there are to the problems such as larger disturbance in habitat, original position earth's surface.
The technical solution used in the present invention is:
A kind of tensiometer, it is characterized in that, comprise: outer frame body and be located at the several probe bases in different depth in described outer frame body, at least one probe base, soil moisture probe is installed therein, described soil moisture probe can stretch out from described outer frame body side; Described soil moisture probe is also connected with data processing module.
Described tensiometer, wherein: the several perforation that arrange along vertical spacing on a side of described outer frame body, described perforation and the corresponding setting one by one of described probe base.
Described tensiometer, wherein: described outer frame body is enclosed with backing plate and formed by C shape frame, and described perforation is arranged on described backing plate.
Described tensiometer, wherein: in described outer frame body, be vertically placed with horizontal push pedal, described horizontal push pedal can horizontal slip in described outer frame body under the driving of horizontal drive apparatus, and described probe base is all fixed in described horizontal push pedal.
Described tensiometer, wherein: described horizontal drive apparatus is slim hydraulic jack, the operation circuit of described slim hydraulic jack and described data processing module join.
Described tensiometer, wherein: the expansion link of described slim hydraulic jack and described horizontal push pedal are welded and fixed, pedestal part and the described outer frame body of described slim hydraulic jack are fixed.
Described tensiometer, wherein: described horizontal push pedal both sides are extruded with slide block, offers horizontal slide rail in two opposed inner walls of described outer frame body, and described horizontal push pedal and described outer frame body are slidably connected.
Described tensiometer, wherein: described outer frame body bottom is connected with taper and settles head.
Described tensiometer, wherein: described outer frame body top is connected with wireless receiving and dispatching overhead bin, described wireless receiving and dispatching overhead bin and described data processing module join.
Described tensiometer, wherein: described wireless receiving and dispatching overhead bin top is connected with lightning protection.
Compared with prior art, the beneficial effect that the present invention has is: compact overall structure, closure of track is not easy to damage, and fathoms adjustable, quick for installation, little to the disturbance of environment.
Brief description of the drawings
Fig. 1, Fig. 2 are respectively one-piece construction schematic diagram and the decomposition texture schematic diagram of integrated form provided by the invention over-wet land table environment water level and soil moisture monitor;
Fig. 3, Fig. 4 are respectively the decomposition texture schematic diagram on the both direction of tensiometer in the present invention;
Fig. 5 is the perspective view of seeing from rear side (removing outer tube body and data processing module) of the water-level gauge in the present invention;
Fig. 6 is the perspective view of the data processing module of the water-level gauge in the present invention;
Fig. 7 is the perspective view (having removed inner tube) of the first half of the water-level gauge in the present invention;
Fig. 8 is the perspective view of the inner tube of the water-level gauge in the present invention;
Fig. 9 is the decomposition mounting structure schematic diagram of the water leg of the water-level gauge in the present invention;
Figure 10 is the structural representation that the water-level gauge in the present invention uses ultrasonic type water level measuring component;
Figure 11 is the electrical block diagram of data processing module of the present invention;
Figure 12 is the workflow diagram of data processing module of the present invention.
Description of reference numerals: wireless receiving and dispatching overhead bin 1; Lightning protection 2; Top bidirectional screw joint 3; Water-level gauge 4; Middle part bidirectional screw joint 7; Tensiometer 8; Bottom bidirectional screw joint 9; Taper settles 10; Perforation 12; Backing plate 14; Slim hydraulic jack 15; Horizontal push pedal 16; Soil moisture probe 17; Probe base 18; C shape frame encloses 19; Carrying handle 28; Data processing module 29; Multi-usage spininess socket 30; Lithium battery 32; SD card fetch equipment 33; Placement hole 35; Inner tube 36; Instrument groove 37; Front semicolumn 38; Later half cylinder 39; Air equalizer opening 40; Fin 41; Ultrasonic type water level measuring component 43; Water leg 44; Wire clamp 45; Transverse tube 451; Locating slot 46; Capacity water level measuring element 47; Data call wire 471; Trash rack A; Air discharge grille B; Outer tube body E; Window F.
Embodiment
As Fig. 1, shown in Fig. 2, the invention provides a kind of integrated form over-wet land table environment water level and soil moisture monitor, its entirety is shaft-like, comprise that from the bottom to top taper settles 10, bottom bidirectional screw joint 9, tensiometer 8, middle part bidirectional screw joint 7, water-level gauge 4, top bidirectional screw joint 3, wireless receiving and dispatching overhead bin 1 and lightning protection 2, described monitor has been assembled in the region to be measured of rear insertion over-wet land table environment, described tensiometer 8 is positioned at below earth's surface, be used for measuring soil moisture, more than described water-level gauge 4 is positioned at earth's surface, be used for measuring water level.
Indoor being provided with in data processing module 29(the present embodiment of instrument department of described monitor, it is positioned at the shell body of water-level gauge 4), described data processing module 29 is connected respectively with described tensiometer 8 and water-level gauge 4, in the present embodiment, described data processing module 29 comprises intelligent chip and memory device.In the situation that described water-level gauge 4 monitors earth's surface and has water, described tensiometer 8 is not worked, and the memory device of described data processing module 29 receives the data that described water-level gauge 4 measures; Monitor in the anhydrous situation in earth's surface at described water-level gauge 4, described tensiometer 8 is started working, and the memory device of described data processing module 29 receives the data that described tensiometer 8 measures.
Described middle part bidirectional screw joint 7 is provided with zero graduation, when described monitor inserts the region to be measured of over-wet land table environment, and need to be by described zero graduation in alignment with ground level.If zero graduation and ground level have height tolerance, deviate manually can be input in described data processing module 29, described data processing module 29 can carry out Data correction.
Described wireless receiving and dispatching overhead bin 1, be connected in described water-level gauge 4 tops, it is connected with described data processing module 29 use data lines, the data message of collecting in described data processing module 29 can be launched by wireless (as GPRS), like this, staff can long range acquisition data message, once and described monitor damage, also can be discovered in time, be convenient to daily servicing.
For another example Fig. 3, shown in Fig. 4, it is the structural representation of described tensiometer 8, it comprises: enclose the 19 shaft-like outer frame bodies that form with backing plate 14 by C shape frame, the several perforation 12 that arrange along vertical spacing on a side of described outer frame body, vertically insert the horizontal push pedal 16 in described outer frame body, be fixed in described outer frame body and drive described horizontal push pedal 16 to do the slim hydraulic jack 15 of horizontal slip, be arranged on the several probe bases 18 in described horizontal push pedal 16 and be arranged on the soil moisture probe 17 at least one probe base 18 wherein along vertical spacing, wherein, described perforation 12 and the corresponding setting one by one of described probe base 18.
After having bored hole on the ground, described tensiometer 8 is inserted in the hole, follow described horizontal push pedal 16 and driven outside motion by described slim hydraulic jack 15, described soil moisture probe 17 will be by level in described perforation 12 to passing, and thrust in soil, to measure the soil moisture value at corresponding height place; After measurement finishes, described slim hydraulic jack 15 drives described horizontal push pedal 16 inwardly to retract, and described tensiometer 8 can be taken out from soil.
In order to increase the measurement adaptability of described tensiometer 8, the present invention is provided with 8 described probe bases 18 in described horizontal push pedal 16, each probe base 18 arranges respectively the following 10cm of ground level, 20cm, 30cm, 40cm, 50cm, 60cm, 70cm, 80cm part, therefore, user can need to distribute according to self the setting height(from bottom) of described soil moisture probe 17, for example, can respectively establish a soil moisture probe 17 at 20cm, 40cm, 60cm place, can also a soil moisture probe 17 be set respectively at 50cm, 80cm place.
In the above-described embodiments, be on described backing plate 14, to be provided with described perforation 12; And the expansion link of described slim hydraulic jack 15 and described horizontal push pedal 16 are welded and fixed, the pedestal part of described slim hydraulic jack 15 is fixed with described outer frame body in the vertical process of inserting described outer frame body of described horizontal push pedal 16, therefore, described slim hydraulic jack 15 not only can promote described horizontal push pedal 16 outward, can also after measurement finishes, described horizontal push pedal 16 inwardly be pulled back.Wherein, described horizontal push pedal 16 both sides are extruded with slide block, in two opposed inner walls of described outer frame body, offer horizontal slide rail, the horizontal slip realizing.
More than the data line of described soil moisture probe 17, the operation circuit of described slim hydraulic jack 15 are upwards communicated to ground by the inside of described outer frame body, and enter in described water-level gauge 4 by described middle part bidirectional screw joint 7, final and described data processing module 29 joins.
Refer to shown in Fig. 5, Fig. 6, the perspective view of seeing from rear side (having removed outer tube body and data processing module 29) of the water-level gauge 4 in the present invention and the perspective view of described data processing module 29, described water-level gauge 4 comprises that outer tube body E(is as shown in Figure 1 and Figure 2) and be located at the front semicolumn 38 and later half cylinder 39 in described outer tube body E, described front semicolumn 38 is connected together and is formed a cylinder by T-slot with later half cylinder 39, wherein:
The top of described later half cylinder 39 is provided with instrument groove 37, can embed wherein for described data processing module 29, the below of described instrument groove 37 also has along the vertical data line hole through described later half cylinder 39, can pass and join with described data processing module 29 for the data line of described soil moisture probe 17 and the operation circuit of described slim hydraulic jack 15.
As shown in Figure 6, described data processing module 29 tops are provided with carrying handle 28, are convenient to pick and place and movement; The lateral surface of described data processing module 29 is also provided with multi-usage spininess socket 30, lithium battery 32 and SD card fetch equipment 33, described SD card fetch equipment is electrically connected respectively with described water-level gauge and tensiometer, the data that obtain from tensiometer and/or water-level gauge will enter the memory device of described SD card fetch equipment and described data processing module 29 simultaneously.This has ensured, even under the most serious water logging condition, instrument still backs up data, has ensured the safety of long-time sequence Monitoring Data.As shown in Figure 2, described outer tube body E is provided with window F corresponding to the lateral surface place of described data processing module 29, is convenient to reading out data or changes lithium battery 32.
As shown in Figure 7, Figure 8, perspective view (having removed inner tube 36) and inner tube 36 schematic diagram of the front semicolumn 38 of the water-level gauge 4 in the present invention, described front semicolumn 38 is along the vertical placement hole 35 that is provided with, on the sidewall of described placement hole 35, be also provided with at least one locating slot 46, described inner tube 36 is inserted in described placement hole 35, and by the fin 41 on inner tube 36 outer walls with described locating slot 46 clampings in case spline is moving.Lower end one side of described inner tube 36 has inlet opening 39, and upper end one side has air equalizer opening 40, on the sidewall of described outer tube body E, is respectively equipped with trash rack A and air discharge grille B corresponding to described inlet opening 39 and the position of described air equalizer opening 40.In the time having water in the monitored area of water-level gauge 4 over-wet land of inserting table environment, water liquid enter in described inner tube 36 from described trash rack A and inlet opening 39, according to connecting pipe principle, water level in described inner tube 36 will maintain an equal level with ground water level, now, the capacity water level measuring element or the ultrasonic type water level measuring component that are arranged in described inner tube 36 can be known water level information, and this information is passed in described data processing module 29.
As Fig. 7, shown in Fig. 8, it is the structural representation that the present invention uses capacity water level measuring element to measure, described capacity water level measuring element 47 is suspended on described inner tube 36 bottoms by data call wire 471, described data call wire 471 is folded to described later half cylinder 39 along vertical after extending upwardly to described inner tube 36 tops, then join with described data processing module 29, in the time of SEA LEVEL VARIATION in described inner tube 36, the also respective change of hydraulic pressure that described capacity water level measuring element 47 bears, therefore also respective change of its capacitance, described data processing module 29 obtains height of water level data according to the variation of described capacitance.
Because described capacity water level measuring element 47 must keep certain distance to ensure the accurate of measurement result with the sidewall of described inner tube 36 in the time measuring, the present invention also arranges a wire clamp 45 on the top of described cylinder, a transverse tube 451 is flatly fixing by described wire clamp 45, one end of described transverse tube 451 overhangs to described inner tube 36 position of center line, the data call wire 471 of described capacity water level measuring element 47 connects described data processing module 29 again by passing in described transverse tube 451, so arrange, the described capacity water level measuring element 47 that can ensure the lower end of described data call wire 471 is positioned at described inner tube 36 centers, ensure measuring accuracy.
Again as shown in Figure 9, the measurement distortion causing in the very little situation of water level on earth's surface, the present invention is made as open by the bottom of described inner tube 36, and connecting airtight a water leg 44 in the bottom of described inner tube 36, described capacity water level measuring element 47 is inserted in described water leg 44 from the bottom of described inner tube 36 passes.Due to the existence of water leg 44, even if the water level on earth's surface is very low, the depth of water of capacity water level measuring element 47 environment of living in inner tube 36 still can be guaranteed, therefore can the distortion because the depth of water is inadequate.
As shown in figure 10, it is the structural representation that water-level gauge 4 in the present invention uses ultrasonic type water level measuring component 43, it is to fix a described ultrasonic type water level measuring component 43 at the apical position of described inner tube 36, the data call wire of described ultrasonic type water level measuring component 43 joins with described data processing module 29 again, wherein, in order to make described ultrasonic type water level measuring component 43 remain on the center of described inner tube 36, the data call wire of described ultrasonic type water level measuring component 43 is also connected to described data processing module 29 by the described described transverse tube 451 being fixed on described wire clamp 45.Use in the situation of ultrasonic type water level measuring component 43, also can, by connect described water leg 44 in the bottom of described inner tube 36, provide measuring accuracy with this.
Due to freezing former thereby cannot use, in the inner side of described outer tube body E, heat-insulation layer can be set for fear of water-level gauge.
Refer to shown in Figure 11 again, introduce circuit structure of the present invention, be provided with described intelligent chip and described memory device in described data processing module 29, described intelligent chip is connected with following each module:
Power supply, for example described lithium battery 32, for power supply;
Calendar clock chip, for timing;
Keyboard, inputs for data;
Display module, for demonstration information, can adopt touch-screen under preferable case, to strengthen human-computer interaction function;
Signal conditioning circuit, be connected with instrument internal Temperature Humidity Sensor, described water level measuring component (condenser type or ultrasonic type) and described soil moisture probe 17 respectively, for example, be then sent to described intelligent chip thereby the data-signal measuring is carried out to signal processing (preposition amplification, bandpass filtering, trap processing);
Described memory device, for storing data;
USB transmission interface, can supply outer extension memory (for example described SD card fetch equipment 33) to carry out exchanges data;
GPRS radio receiving transmitting module, for carrying out remote data communication or guarantee signal being sent by wireless.
Wherein: described intelligent chip can be installed RS485 interface and driving, and RS232 interface and driving, to increase the adaptability of intelligent chip to each sensor and soil moisture probe.
When use, as shown in figure 12:
First carry out parameter interactive setup by keyboard and described display module, so that intelligent chip and described each module are carried out to initialization;
Described intelligent chip checks that whether the electric weight of described power supply is sufficient, and checks that by described inner Temperature Humidity Sensor whether internal environment is suitable, if not, sends guarantee signal by described GPRS radio receiving transmitting module, if so, continues;
Then, described intelligent chip reads the reading of described water level measuring component, and has judged whether reading, if non-metering illustrates that ground is anhydrous, described soil humidity sensor starts, and described water level measuring component is closed; If there is reading, illustrate that there is water on ground, described soil humidity sensor is closed, and described water level measuring component starts;
The data that described soil humidity sensor or described water level measuring component gather, can deposit described memory device in, and/or deposit outer extension memory in by USB transmission interface, and/or send by described GPRS radio receiving transmitting module;
After a work period finishes, described intelligent chip and described each module enter system hibernates state.
Certainly, above-mentioned tensiometer 8 also can depart from described water-level gauge 4 and manufactures separately and use, described data processing module 29 can be arranged on the inside of described tensiometer 8 or be fixed on the top of described tensiometer 8, can also below described tensiometer 8, connect taper and settle 10, and above described tensiometer 8, connect wireless receiving and dispatching overhead bin 1 and lightning protection 2.
Described water-level gauge 4 also can depart from described tensiometer 8 and manufactures separately and use, and can below described water-level gauge 4, connect taper and settle 10, and above described water-level gauge 4, connect wireless receiving and dispatching overhead bin 1 and lightning protection 2.
Described taper settles 10, connection between tensiometer 8, water-level gauge 4, wireless receiving and dispatching overhead bin 1 and lightning protection 2 is also not limited to be threaded, and can use the multiple connected modes such as clamping, socket, splicing, can also be made into integrative-structure.
More than explanation is just illustrative for the purpose of the present invention; and nonrestrictive, those of ordinary skill in the art understand, in the case of not departing from the spirit and scope that claim limits; can make many amendments, variation or equivalence, but within all will falling into protection scope of the present invention.
Claims (7)
1. a tensiometer, it is characterized in that, comprise: outer frame body and be located at the several probe bases in different depth in described outer frame body, at least one probe base, soil moisture probe is installed therein, described soil moisture probe can stretch out from described outer frame body side; Described soil moisture probe is also connected with data processing module;
The several perforation that arrange along vertical spacing on a side of described outer frame body, described perforation and the corresponding setting one by one of described probe base;
In described outer frame body, be vertically placed with horizontal push pedal, described horizontal push pedal can horizontal slip in described outer frame body under the driving of horizontal drive apparatus, and described probe base is all fixed in described horizontal push pedal;
Described horizontal push pedal both sides are extruded with slide block, in two opposed inner walls of described outer frame body, offer horizontal slide rail, and described horizontal push pedal and described outer frame body are slidably connected.
2. tensiometer according to claim 1, is characterized in that: described outer frame body is enclosed with backing plate and formed by C shape frame, and described perforation is arranged on described backing plate.
3. tensiometer according to claim 1, is characterized in that: described horizontal drive apparatus is slim hydraulic jack, and the operation circuit of described slim hydraulic jack and described data processing module join.
4. tensiometer according to claim 3, is characterized in that: the expansion link of described slim hydraulic jack and described horizontal push pedal are welded and fixed, and pedestal part and the described outer frame body of described slim hydraulic jack are fixed.
5. tensiometer according to claim 1, is characterized in that: described outer frame body bottom is connected with taper and settles head.
6. tensiometer according to claim 1, is characterized in that: described outer frame body top is connected with wireless receiving and dispatching overhead bin, and described wireless receiving and dispatching overhead bin and described data processing module join.
7. tensiometer according to claim 6, is characterized in that: described wireless receiving and dispatching overhead bin top is connected with lightning protection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310080544.9A CN103217510B (en) | 2013-03-13 | 2013-03-13 | Soil hygrometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310080544.9A CN103217510B (en) | 2013-03-13 | 2013-03-13 | Soil hygrometer |
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| Publication Number | Publication Date |
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| CN103217510A CN103217510A (en) | 2013-07-24 |
| CN103217510B true CN103217510B (en) | 2014-10-15 |
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| CN201310080544.9A Expired - Fee Related CN103217510B (en) | 2013-03-13 | 2013-03-13 | Soil hygrometer |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104076132B (en) * | 2014-07-10 | 2016-05-18 | 北京林业大学 | Method for designing, device and the control method of deep soil moisture determinator |
| CN104483357A (en) * | 2014-12-22 | 2015-04-01 | 山东大学 | Resistivity change principle based soil water content testing instrument and method |
| CN105807033A (en) * | 2014-12-31 | 2016-07-27 | 青岛中科软件股份有限公司 | Tapered high-sensitivity soil sensor |
| CN105067472B (en) * | 2015-07-28 | 2017-10-13 | 首都师范大学 | Overly moist earth's surface ambient moisture lysimeter |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004093213A (en) * | 2002-08-29 | 2004-03-25 | Kawasaki Kiko Co Ltd | Characteristic distribution measuring device |
| DE102004002272A1 (en) * | 2004-01-16 | 2005-08-11 | Florasys Ag | Moisture meter for soil testing is purely mechanical and operates by flexing of axial compound element constructed of two materials which respond differentially to dampness |
| WO2009070888A1 (en) * | 2007-12-07 | 2009-06-11 | Esi Environmental Sensors Inc. | Moisture sensor |
| CN101936938B (en) * | 2010-07-05 | 2013-01-02 | 河海大学 | High-frequency soil moisture measuring instrument |
| CN101949918B (en) * | 2010-08-24 | 2013-04-17 | 甘肃农业大学 | Device for installing soil humidity sensor |
| CN102539649A (en) * | 2010-12-18 | 2012-07-04 | 西安迅腾科技有限责任公司 | Device for acquiring soil moisture content field data |
| CN201965128U (en) * | 2011-03-09 | 2011-09-07 | 刘春华 | Multifunctional one-stop soil moisture monitoring device |
| CN102914568B (en) * | 2012-10-09 | 2014-12-10 | 华南农业大学 | Soil moisture sensor with replaceable probe and measuring method of soil moisture sensor |
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