CN106771075A - For the double automatic detection device and method of contact pin type soil moisture sensor - Google Patents
For the double automatic detection device and method of contact pin type soil moisture sensor Download PDFInfo
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- CN106771075A CN106771075A CN201611245335.5A CN201611245335A CN106771075A CN 106771075 A CN106771075 A CN 106771075A CN 201611245335 A CN201611245335 A CN 201611245335A CN 106771075 A CN106771075 A CN 106771075A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
- G01N33/246—Earth materials for water content
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/00584—Control arrangements for automatic analysers
- G01N35/00594—Quality control, including calibration or testing of components of the analyser
- G01N35/00693—Calibration
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/00584—Control arrangements for automatic analysers
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Abstract
The present invention relates to a kind of double automatic detection device and method for contact pin type soil moisture sensor.Intelligent liquid crystal modular control cylinder station I rotates, and optoelectronic switch position light outputs signals to Intelligent liquid crystal modular after being blocked, and control stepper motor stops, and elevating lever tow sensor contact pin enters in cylinder station I, and data are stored in Intelligent liquid crystal modular；Elevating lever tow sensor contact pin is left in cylinder station I, then runing rest drives cylinder station II to rotate, optoelectronic switch position light outputs signals to Intelligent liquid crystal modular after being blocked, elevating lever tow sensor contact pin enters in cylinder station II, and data are stored in Intelligent liquid crystal modular；Intelligent liquid crystal modular compares the data of twice insertion different station by with established standardses value error range, judges that soil moisture sensor is normal, soil moisture sensor failure is otherwise judged, so as to realize the fully-automated synthesis of soil moisture sensor.
Description
Technical field
The present invention relates to a kind of automatic detection device, specifically a kind of double for contact pin type soil moisture sensor
Automatic detection device and method.
Background technology
Soil moisture sensor is applied in fields such as meteorological, agricultural, ecological and hydrological environments, is primarily used to detect soil
Moisture measurement instrument.Based on FDR（Frequency Domain Reflectometry）Frequency domain reflection technology measurement soil is situated between
Electric constant.Moisture in soil change causes change in dielectric constant, volumetric water content and the dielectric constant existence function relation of soil.
At present, to the quick detection of contact pin type soil moisture sensor, there is blank in the country, at this stage the demarcation of sensor
Mainly use China Meteorological Administration《Agrometeorological observation specification》The weighting method after dried of regulation.Contained using weighting method after dried measurement soil
The major advantage of water is that precision is higher, measurement range is wide, but there is following shortcoming：One, weighting method after dried be it is whole by
It is accomplished manually, institute's infield soil sample must be fetched laboratory and be dried, weighs by it by field, be asked finally by calculating
Go out the water content of soil, therefore workload is big, efficiency is low.Two, measure the cycle is long, past to drying, weighing, calculate from soil sampling
It is past to need longer time, it usually needs 24 hours, to be comparatively fast also required to 5 ~ 12 hours, bring very big inconvenience to quick measurement.
Three, soil texture is destroyed during sampling soil, long-term observation should not be pinpointed.
Because weighting method after dried is primarily used to be used to transducer calibration, usually measurement is mainly used to measurement sensor has
No data is exported, and whether data are normal, is used not as the long-term observation of fixed point.
The content of the invention
In order to solve that traditional detection method labor workload is big, efficiency is low, measure the cycle is long, it is destruction soil texture, unsuitable
The shortcoming of the long-term observation of fixed point, the invention provides the double automatic detection device for contact pin type soil moisture sensor and
Method.The device, can quickly measure contact pin type soil moisture sensor whether failure, do not destroy soil texture, be to determine
The automation equipment of the long-term observation of point.
The present invention to achieve the above object, adopts the following technical scheme that realization：One kind is used for contact pin type soil moisture
The double automatic detection device of sensor, including elevating lever, Intelligent liquid crystal modular, stepper motor, it is characterised in that：Also include
Sensor fixed support, soil moisture environment analogue means, runing rest, shell, optoelectronic switch, spirit bubble, leveling bolt, bottom
Seat, contiguous block；
Four regulation leveling bolts are separately fixed at below base, the optoelectronic switch, stepper motor, contiguous block difference
Submounts are fixed on, the Intelligent liquid crystal modular, spirit bubble are separately mounted on shell, the resistive touch of Intelligent liquid crystal modular
Screen display is exposed on the front panel of shell, and spirit bubble is manifested above shell on plate, and the shell is fixed on base, and light is established by cable
The light emitting diode of pass and the axle of stepper motor stretch out outside shell top panel respectively, and the runing rest is fixed on stepper motor
On axle, a soil moisture environment analogue means, the bottom of the elevating lever are respectively mounted in two circular holes on runing rest
It is fixed on contiguous block, upper end and the sensor fixed support of elevating lever are mutually fixed；
Circuit is connected as, and Intelligent liquid crystal modular is connected with elevating lever, optoelectronic switch, stepper motor respectively, and elevating lever can be according to intelligence
Can Liquid Crystal Module instruction, the lifting of drive sensor fixed support or decline.
A kind of detection method of double automatic detection device for contact pin type soil moisture sensor, step is as follows,
Elevating mechanism, including fixed support, elevating lever, rotating mechanism, including runing rest, stepper motor；
The first step, preparation,
Device is placed on stabilization desktop, spirit bubble center centring point, adjusts water when being made by four regulation leveling bolts
Flat work is completed；
Soil moisture environment analogue means has 2 stations, the cylinder of inside diameter 65mm is, inside a cylinder station I
Equipped with the water that standard grammes per square metre is weighed using balance, another cylinder station II is equipped with and weighs another standard grammes per square metre using balance
Pure water and the glass marble of grammes per square metre is set, glass marble is used for simulating soil, and whole cylinder is accounted for by calculating glass marble cumulative volume
Volume fraction is used for simulating the different water cut of soil, it is ensured that the authenticity of soil environment simulation；
Then soil moisture sensor is stuck in the upper lower semi-circular boss in sensor fixed support semi-circular groove and semicircular ring
Between, device start, Intelligent liquid crystal modular enters line program and elevating mechanism, rotating mechanism reset work automatically；
When second step, work, the operational order that Intelligent liquid crystal modular identification host computer sends controls rotating mechanism first,
Soil moisture environment analogue means cylinder station I is driven to rotate to optoelectronic switch position by driving stepper motor runing rest
When, optoelectronic switch position light outputs signals to Intelligent liquid crystal modular after being blocked, control stepper motor stops operating, then intelligence
Liquid Crystal Module controls elevating mechanism to drive sensor fixed support dragging soil moisture sensor to move down elevating lever, works as liter
When drop bar drops to setting position, internal end of travel switch motion, elevating lever stops, and now just sensor contact pin enters the soil water
Time-sharing environment analogue means is in cylinder station I, the soil moisture data that sensor is exported, data to be read by Intelligent liquid crystal modular
It is stored in Intelligent liquid crystal modular；
Third step：Control elevating mechanism, drives sensor fixed support dragging soil moisture sensor to move upwards elevating lever
Dynamic, when elevating lever rises to setting position, internal end of travel switch motion, elevating lever stops, and now just soil moisture is sensed
Device contact pin is left in soil moisture environment analogue means cylinder station I, then controls rotating mechanism, is revolved by driving stepper motor
Turn the dynamic soil moisture environment analogue means cylinder station II of supporting band to rotate during to optoelectronic switch position, optoelectronic switch position light quilt
Intelligent liquid crystal modular is output signals to after blocking, elevating mechanism is then controlled, elevating lever is driven into the dragging of sensor fixed support
Soil moisture sensor is moved down, then Intelligent liquid crystal modular control elevating mechanism, drives sensor to fix branch elevating lever
Frame dragging soil moisture sensor is moved down, when elevating lever drops to setting position, internal end of travel switch motion, elevating lever
Stop, now just sensor contact pin enters in soil moisture environment analogue means cylinder station II, by Intelligent liquid crystal modular
The soil moisture data of now soil moisture sensor output are read, data are stored in Intelligent liquid crystal modular；
Soil moisture sensor contact pin twice is inserted the soil moisture environment mould of different station for four steps, Intelligent liquid crystal modular
The data for intending device are compared by with artificial established standardses value error range originally, standard of the actual measured value in artificial setting
In value error range, then judge that soil moisture sensor is normal, otherwise judge soil moisture sensor failure, will finally judge knot
Fruit shows on the touchscreen, while data storage is in Intelligent liquid crystal modular, so that operating personnel consult, so as to realize the soil water
The fully-automated synthesis of sub-sensor.
Compared with conventional art, the present invention has advantages below：
Sampling soil in conventional method is replaced using soil moisture environment analogue means, the workload of detection is greatly reduced,
Shorten measure the cycle, the operation of measurement process whole-course automation, the destabilizing factor during reducing the personnel to operate, analogue means
Can at any time be made in laboratory, save human and material resources, improve the operating efficiency of detection, adjustable point is observed for a long time.The device
Easy to use, whole process need not be participated in manually, and time efficiency is high, improve operating efficiency, be made beneficial to the quick test of high-volume
With.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
Fig. 2 is structural decomposition diagram of the invention；
Fig. 3 is the support bracket fastened structural representation of inventive sensor；
Fig. 4 is the half section schematic diagram of use state of the present invention.
Specific embodiment
In order to further illustrate the present invention technological means and its effect taken, with reference to preferred embodiment and its
Accompanying drawing is described in further detail to the present invention.
As shown in Figure 1, 2, 3, for the double automatic detection device of contact pin type soil moisture sensor, including elevating lever
2nd, Intelligent liquid crystal modular 6, stepper motor 11, also including sensor fixed support 1, soil moisture environment analogue means 3, rotation branch
Frame 4, shell 5, optoelectronic switch 7, spirit bubble 8, leveling bolt 9, base 10, contiguous block 12.
The side of sensor fixed support 1 is the semicircular bodies of vertical configuration, and the face of semicircular bodies is semi-circular groove 1-1, correspondence
Semi-circular groove 1-1 is provided with a semicircular ring 1-2, fixes a piece of semicircle catch 1-3 respectively on the top and bottom of semicircular bodies, makes
Upper and lower side forms symmetrical semicircle boss 1-1-1 in semi-circular groove 1-1, and the opposite side upper end of sensor fixed support 1 is fixed
There is T shape connector 1-4, connecting hole 1-4-1 is provided with the crowning of T shape connector 1-4.
Four regulation leveling bolts 9 are separately fixed at below base 10, optoelectronic switch 7, stepper motor 11, contiguous block 12
It is bolted on respectively above base 10, Intelligent liquid crystal modular 6, spirit bubble 8 are separately mounted on shell 5, intelligent liquid-crystal
The electric resistance touch screen 6-1 of module 6 is manifested on the front panel of shell 5 by shell rectangle frame 5-1, and spirit bubble 8 manifests shell 5
Above on plate, on base 10, the luminescence component of optoelectronic switch 7 and the axle of stepper motor 11 stretch out outer to the spiral shell of shell 5 respectively
Outside the top panel of shell 5, runing rest 4 is fixed on the axle of stepper motor 11, is pacified respectively in two on runing rest 4 circular hole 4-1
A soil moisture environment analogue means 3 is filled, bolt is passed through in 12U mouthfuls of 12-1 of bottom projection 2-1 insertion contiguous blocks of elevating lever 2
It is fixed on contiguous block 12, in the upper end of elevating lever 2 insertion fixed support 1 connecting hole 1-4-1, is fixed with sensor by bolt
Support 1 is mutually fixed.
Circuit is connected as, and Intelligent liquid crystal modular 6 is connected with elevating lever 2, optoelectronic switch 7, stepper motor 11 respectively, elevating lever
2 can instruct according to Intelligent liquid crystal modular 6, drive sensor fixed support 1 to be lifted or declined.
The model of elevating lever 2：XTL150-12-1000 electric pushrods.
The model of Intelligent liquid crystal modular 6：IHMI43 Intelligent liquid crystal modulars.
As shown in figure 4, a kind of detection method of double automatic detection device for contact pin type soil moisture sensor,
Step is as follows：
Elevating mechanism, including fixed support 1, elevating lever 2, rotating mechanism, including runing rest 4 are arranged on stepper motor 11.
The first step, preparation,
Device is placed on stabilization desktop, the center centring point of spirit bubble 8, regulation when being made by four regulation leveling bolts 9
Horizontal operation is completed.
Soil moisture environment analogue means 3 has 2 stations, is the cylinder of inside diameter 65mm, a cylinder station I
3-1 inside is equipped with the water 13 that standard grammes per square metre is weighed using balance, and another cylinder station II 3-2 is another equipped with being weighed using balance
The pure water of individual standard grammes per square metre and the glass marble 14 of grammes per square metre is set, glass marble 14 is used for simulating soil, by calculating glass marble
14 cumulative volumes account for whole cylinder volume fraction for simulating the different water cut of soil, it is ensured that it is true that soil environment is simulated
Property.
Then soil moisture sensor 15 is stuck in upper in the semi-circular groove 1-1 of sensor fixed support 1 and semicircular ring 1-2
Between lower semi-circular boss 1-1-1, device start, Intelligent liquid crystal modular 6 enters line program automatically and elevating mechanism, rotating mechanism are multiple
Position work.
When second step, work, the operational order that the identification host computer of Intelligent liquid crystal modular 6 sends, first control rotation
Mechanism, drives runing rest 4 to drive the 3-1 of 3 cylinder station of soil moisture environment analogue means I to rotate to light by stepper motor 11
During 7 position of electric switch, the position light of optoelectronic switch 7 outputs signals to Intelligent liquid crystal modular 6 after being blocked, and control stepper motor 11 stops
Rotation stop is moved, and then elevating lever 2 is driven sensor fixed support 1 to drag soil moisture by the control of Intelligent liquid crystal modular 6 elevating mechanism
Sensor 15 is moved down, and when elevating lever 2 drops to setting position, internal end of travel switch motion, elevating lever 2 stops, now
Just sensor contact pin is in the 3-1 of cylinder station I, to be read by Intelligent liquid crystal modular 6 into soil moisture environment analogue means 3
The soil moisture data of sensor output, data are stored in Intelligent liquid crystal modular 6.
Third step：Control elevating mechanism, drives sensor fixed support 1 to drag soil moisture sensor elevating lever 2
15 move up, and when elevating lever 2 rises to setting position, internal end of travel switch motion, elevating lever 2 stops, now just native
The contact pin of earth moisture transducer 15 is left in the 3-2 of 3 cylinder station of soil moisture environment analogue means I, then controls rotating mechanism, is led to
Crossing stepper motor 11 drives runing rest 4 to drive the 3-2 of 3 cylinder station of soil moisture environment analogue means II to rotate to optoelectronic switch
During 7 position, the position light of optoelectronic switch 7 outputs signals to Intelligent liquid crystal modular 6 after being blocked, and then controls elevating mechanism, will rise
Drop bar 2 drives sensor fixed support 1 to drag soil moisture sensor 15 and moves down, and the then control of Intelligent liquid crystal modular 6 rises
Descending mechanism, drives sensor fixed support 1 to drag soil moisture sensor 15 elevating lever 2 and moves down, when elevating lever 2 declines
During to setting position, internal end of travel switch motion, elevating lever 2 stops, and now just sensor contact pin enters soil moisture environment
In the 3-2 of 3 cylinder station of analogue means II, the soil that now soil moisture sensor 15 is exported is read by Intelligent liquid crystal modular 6
Moisture data, data are stored in Intelligent liquid crystal modular 6.
The contact pin of soil moisture sensor 15 twice is inserted the soil water of different station for four steps, Intelligent liquid crystal modular 6
The data of time-sharing environment analogue means 3 are compared by with artificial established standardses value error range originally, and actual measured value is artificial
In the standard value error range of setting, then judge that soil moisture sensor 15 is normal, otherwise judge the event of soil moisture sensor 15
Barrier, final result of determination is shown on the touchscreen, while data storage is in Intelligent liquid crystal modular 6, so that operating personnel look into
Read, so as to realize the fully-automated synthesis of soil moisture sensor.
Claims (3)
1. a kind of double automatic detection device for contact pin type soil moisture sensor, including elevating lever（2）, intelligent liquid-crystal
Module（6）, stepper motor（11）, it is characterised in that：Also include sensor fixed support（1）, soil moisture environment analogue means
（3）, runing rest（4）, shell（5）, optoelectronic switch（7）, spirit bubble（8）, leveling bolt（9）, base（10）, contiguous block
（12）；
Four regulation leveling bolts（9）It is separately fixed at base（10）Below, the optoelectronic switch（7）, stepper motor
（11）, contiguous block（12）It is separately fixed at base（10）Above, the Intelligent liquid crystal modular（6）, spirit bubble（8）It is separately mounted to
Shell（5）On, Intelligent liquid crystal modular（6）Electric resistance touch screen（6-1）Manifest shell（5）Front panel on, spirit bubble（8）It is aobvious
Expose shell（5）Above on plate, the shell（5）It is fixed on base（10）On, optoelectronic switch（7）Light emitting diode and step
Stepper motor（11）Axle stretch out shell respectively（5）Outside top panel, the runing rest（4）It is fixed on stepper motor（11）Axle
On, runing rest（4）On two circular holes（4-1）In be respectively mounted a soil moisture environment analogue means（3）, the lifting
Bar（2）Bottom be fixed on contiguous block（12）On, elevating lever（2）Upper end and sensor fixed support（1）It is mutually fixed；
Circuit is connected as, Intelligent liquid crystal modular（6）Respectively with elevating lever（2）, optoelectronic switch（7）, stepper motor（11）Connection, rises
Drop bar（2）Can be according to Intelligent liquid crystal modular（6）Instruction, drives sensor fixed support（1）Lifting declines.
2. the double automatic detection device for contact pin type soil moisture sensor according to claim 1, its feature
It is：The sensor fixed support（1）Side is the semicircular bodies of vertical configuration, and the face of semicircular bodies is semi-circular groove（1-1）,
Correspondence semi-circular groove（1-1）It is provided with a semicircular ring（1-2）, fix a piece of semicircle gear respectively on the top and bottom of semicircular bodies
Piece（1-3）, make semi-circular groove（1-1）Interior upper and lower side forms symmetrical semicircle boss（1-1-1）, sensor fixed support
（1）Opposite side upper end, is fixed with T shape connector（1-4）, in T shape connector（1-4）Crowning be provided with connecting hole
（1-4-1）.
3. the inspection of the double automatic detection device for contact pin type soil moisture sensor described in a kind of use claim 1
Survey method, it is characterised in that：Step is as follows,
Elevating mechanism includes fixed support（1）, elevating lever（2）, rotating mechanism include runing rest（4）, stepper motor（11）；
The first step, preparation,
Device is placed on stabilization desktop, by four regulation leveling bolts（9）Spirit bubble when making（8）Center centring point,
Regulation horizontal operation is completed；
Soil moisture environment analogue means（3）2 stations are had, the cylinder of inside diameter 65mm, a cylinder station I is
（3-1）Inside is equipped with the water that standard grammes per square metre is weighed using balance（13）, another cylinder station II（3-2）Equipped with making to weigh in the balance
The pure water for taking another standard grammes per square metre and the glass marble for setting grammes per square metre（14）, glass marble（14）For simulating soil, pass through
Calculate glass marble（14）Cumulative volume accounts for whole cylinder volume fraction for simulating the different water cut of soil, it is ensured that soil environment
The authenticity of simulation；
Then by soil moisture sensor（15）It is stuck in sensor fixed support（1）Semi-circular groove（1-1）And semicircular ring（1-2）It is interior
Upper lower semi-circular boss（1-1-1）Between, device start, Intelligent liquid crystal modular（6）Automatically line program and elevating mechanism, rotation are entered
Rotation mechanism reset work；
When second step, work, Intelligent liquid crystal modular（6）The operational order that identification host computer sends, controls whirler first
Structure, by stepper motor（11）Drive runing rest（4）Drive soil moisture environment analogue means（3）Cylinder station I（3-1）Rotation
Go to optoelectronic switch（7）During position, optoelectronic switch（7）Position light outputs signals to Intelligent liquid crystal modular after being blocked（6）, control
Stepper motor（11）Stop operating, then Intelligent liquid crystal modular（6）Elevating mechanism is controlled by elevating lever（2）Sensor is driven to fix
Support（1）Dragging soil moisture sensor（15）Move down, work as elevating lever（2）When dropping to setting position, internal end of travel is opened
Pass acts, elevating lever（2）Stop, now just sensor contact pin enters soil moisture environment analogue means（3）It is cylinder station I
（3-1）It is interior, by Intelligent liquid crystal modular（6）The soil moisture data of sensor output are read, data are stored in intelligent liquid-crystal mould
Block（6）In；
Third step：Control elevating mechanism, by elevating lever（2）Drive sensor fixed support（1）Dragging soil moisture sensor
（15）Move up, work as elevating lever（2）When rising to setting position, internal end of travel switch motion, elevating lever（2）Stop, now
Just soil moisture sensor（15）Contact pin leaves soil moisture environment analogue means（3）Cylinder station I（3-2）It is interior, then control
Rotating mechanism processed, by stepper motor（11）Drive runing rest（4）Drive soil moisture environment analogue means（3）Cylinder station
Ⅱ（3-2）Rotate to optoelectronic switch（7）During position, optoelectronic switch（7）Position light outputs signals to intelligent liquid-crystal mould after being blocked
Block（6）, elevating mechanism is then controlled, by elevating lever（2）Drive sensor fixed support（1）Dragging soil moisture sensor（15）
Move down, then Intelligent liquid crystal modular（6）Control elevating mechanism, by elevating lever（2）Drive sensor fixed support（1）Dragging
Soil moisture sensor（15）Move down, work as elevating lever（2）When dropping to setting position, internal end of travel switch motion, lifting
Bar（2）Stop, now just sensor contact pin enters soil moisture environment analogue means（3）Cylinder station II（3-2）It is interior, pass through
Intelligent liquid crystal modular（6）Read now soil moisture sensor（15）The soil moisture data of output, data are stored in intelligent liquid
Crystal module（6）In；
Four steps, Intelligent liquid crystal modular（6）To soil moisture sensor twice（15）Contact pin inserts the soil water of different station
Time-sharing environment analogue means（3）Data compared by with artificial established standardses value error range originally, actual measured value is in people
In the standard value error range of work setting, then soil moisture sensor is judged（15）Normally, soil moisture sensor is otherwise judged
（15）Failure, final result of determination is shown on the touchscreen, while data storage is in Intelligent liquid crystal modular（6）In, to grasp
Make personnel's access, so as to realize the fully-automated synthesis of soil moisture sensor.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107918004A (en) * | 2017-12-27 | 2018-04-17 | 河南中原光电测控技术有限公司 | A kind of cannula type soil moisture detector calibrating installation |
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| CN102279197A (en) * | 2011-06-17 | 2011-12-14 | 中国农业科学院德州盐碱土改良实验站 | Moisture curve calibrate simulation soil column of neutron instrument suitable for layered water content change |
| CN202216952U (en) * | 2011-09-06 | 2012-05-09 | 中国地质调查局水文地质环境地质调查中心 | Transient three-probe thermal pulse type hydrothermal parameter sensor |
| CN103048339A (en) * | 2011-12-01 | 2013-04-17 | 中国科学院对地观测与数字地球科学中心 | Soil moisture detection method and soil moist detection device |
| CN102944577A (en) * | 2012-11-08 | 2013-02-27 | 苏州南智传感科技有限公司 | Soil moisture sensor calibration device and method based on time domain transmission technology |
| CN103148838A (en) * | 2013-02-06 | 2013-06-12 | 清华大学 | Groundwater aeration repair process simulation test system and method |
| CN104034861A (en) * | 2014-06-04 | 2014-09-10 | 中国科学院合肥物质科学研究院 | Method and device for measuring soil bulk density in real time |
| CN204111293U (en) * | 2014-09-17 | 2015-01-21 | 青岛佳明测控科技股份有限公司 | Culture automatic supplier |
| CN204832182U (en) * | 2015-07-31 | 2015-12-02 | 水利部水文仪器及岩土工程仪器质量监督检验测试中心 | Device is laid to laser formula soil moisture content sensor |
| CN105372092A (en) * | 2015-12-02 | 2016-03-02 | 中国科学院合肥物质科学研究院 | Soil sampling vehicle with automatic soil collection and storage function |
| CN106248522A (en) * | 2016-07-19 | 2016-12-21 | 西安思坦环境科技有限公司 | A kind of laboratory investment method about soil moisture content sensor |
| CN206523462U (en) * | 2016-12-29 | 2017-09-26 | 中环天仪（天津）气象仪器有限公司 | A kind of double automatic detection device for contact pin type soil moisture sensor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107918004A (en) * | 2017-12-27 | 2018-04-17 | 河南中原光电测控技术有限公司 | A kind of cannula type soil moisture detector calibrating installation |
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