CN106940334B - Freeze resistive frozen soil sensor - Google Patents
Freeze resistive frozen soil sensor Download PDFInfo
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- CN106940334B CN106940334B CN201710207837.7A CN201710207837A CN106940334B CN 106940334 B CN106940334 B CN 106940334B CN 201710207837 A CN201710207837 A CN 201710207837A CN 106940334 B CN106940334 B CN 106940334B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/26—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring depth
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Abstract
Freeze resistive frozen soil sensor, is related to the sensor that frozen soil measures in meteorological observation.It is composed of column type sensor main body part, underground outer sleeve, heat insulating mattress, connection socket, automatic collector, several centers are wherein set inside column type sensor main body part away from bubble chamber is frozen as the sense of 1cm, intracavitary detecting electrode, sense freeze bubble connectivity slot, electrode cable seal groove, water injection hole, drainage hole；Column type sensor main body part jacket hoop has the anti-sebific duct that rises, and is placed in the outer sleeve of underground, and intracavitary detecting electrode freezes in bubble cavity wall embedded in sense, and bubble chamber is frozen in sense and sense freezes bubble connectivity slot and fills tap water by water injection hole；Automatic collector is placed in the top of connection socket, and interior electronic commutator, single-chip computer control system, memory, power supply circuit, communication interface and scene setting, the operating status of being equipped with is shown；The configuration of the present invention is simple, scientific and reasonable, technical performance is stable, accuracy of observation high (reachable ± 1cm), application easy to spread, the key problem in technology for solving the automation of meteorological observation frozen soil.
Description
Technical field
The present invention relates to the sensors that frozen soil in meteorological observation measures.
Background technique
The measurement data of frost penetration is the indispensable basic information of the engineering constructions such as road, building, oil transportation, water delivery,
The even more foundation of the agricultural productions such as spring plantation, variety of crops adjustment.The observation of frost penetration include the soil freezing number of plies and
The observation of the depth of freezing is one of the basic observation mission of China's most area meteorological station.
The method that frost penetration observation in China's uses " TB1-1 type freezing meter " artificial observation.External frozen soil observation is generally adopted
With " Dan Nilinshi freezing meter " be also artificial observation method, measuring principle is identical, i.e., observation person daily timing will in depth under
0.5~4.5 meter of water filling flexible rubber hose for portraying length mark proposes ground, with hand by centimetre pinch and pinch the hardness of hose and judge
What whether the water in sebific duct froze to judge underground freezes the number of plies and the depth of freezing.This manual measurement method is not only observed
Personnel work hard, bring error of expanding with heat and contract with cold there is also the scale for portraying length and pinching for personnel's subjectivity operation pinch, bend and break
Bad original natural freezing state bring error in judgement.Up to now, the automated instruments equipment of the domestic observation of frozen soil not yet,
Though it attempts to design frozen soil sensor using time domain radioactive method, capacitance measurement, photovoltaic measurement, thermometry etc.,
But since the precision of measuring frozen is unable to reach 1 centimetre, and sensor processing complexity exists in the measurement of multi-level frozen soil
Larger difficulty, is also unfavorable for the measurement of relatively deep frozen soil, therefore is not widely applied.
With the raising of China's meteorological observation the degree of automation, many meteorological observation elements successively realize automatic Observation,
The Ground Meteorological automated system of modernization gradually forms.In order to fill up the blank of China's automatic Observation frozen soil method, increases and see
It surveys the reliability of frozen soil, reduce that human error, to improve meteorological automatic Observation horizontal, urgent need develops one kind, and to can be realized automation distant
Survey the sensor of frozen soil.
Summary of the invention
That the object of the present invention is to provide a kind of structures is simple, high (1cm) performance of accuracy of observation is stable, can be widely applied to
Frozen soil observation sensor in meteorological automated system.
Learnt by theory and practice: the essence that soil freezes is freezing for soil institute's water content, the heat of soil freezing
Physical process still keeps the main feature of water freezing process in main aspect.It is successively heat exchanged present in soil and mainly passes through
Heat exchange pattern carries out, and the temperature gradient in ground somewhere same layer soil level direction goes to zero, the temperature gradient of vertical direction compared with
Greatly.Conductive resistance based on the aqueous solution containing conducting particles in phase transformation can occur cataclysm this " freezing resistance characteristic ", and this
The reproducibility of characteristic and extraordinary regular feature, the enlightenment that we obtain is made of: induction matter can be made of impure water
Sensing element, what the phase transformation situation by measuring water can react same layer soil freezes situation.
The technical scheme is that design a kind of jelly resistive frozen soil sensor, it by column type sensor main body part, underground outside
Sleeve, heat insulating mattress, connection socket, automatic collector are composed, wherein the column type sensor main body part is by nonmetallic materials
It is process, inside sets several centers away from bubble chamber is frozen as the sense of 1cm, and intracavitary detecting electrode, sense freeze bubble connectivity slot, electrode cable
Seal groove, water injection hole, drainage hole；Column type sensor main body part jacket hoop has the anti-sebific duct that rises, and is placed in the outer sleeve of underground, top is worn
It crosses heat insulating mattress and is connected with socket is connect；The intracavitary detecting electrode freezes in bubble cavity wall embedded in sense, and conducting wire is sealed through electrode cable
The bore of socket is corresponding is sequentially arranged successively connection with connection for slot；Bubble chamber is frozen in sense and sense is frozen bubble connectivity slot and filled originally by water injection hole
Water；The automatic collector be placed in connection socket top, it is interior be equipped with electronic commutator, single-chip computer control system, memory,
Power supply circuit, communication interface and scene setting, operating status are shown；Realize that circuit and transmission are believed with frozen soil sensor and host computer
Number effective connection.
The present invention is compared with known technology, and structure is simple, scientific and reasonable, technical performance is stable, accuracy of observation is high (reachable
± 1cm), it is easy to spread application, solve meteorological observation frozen soil automation key problem in technology.
Detailed description of the invention
Fig. 1 is structure longitudinal profile of the invention.
Fig. 2 is column type sensor main body part structure longitudinal profile in the present invention.
Fig. 3 is the cross-sectional schematic diagram of column type sensor main body part structure in the present invention.
Fig. 4 is single-chip computer control system work-based logic block diagram in automatic collector of the present invention.
1- automatic collector 2- connection socket 3- heat insulating mattress in figure
The underground the 4- sensor main body part 5- ground outer sleeve 6-
Bubble chamber 9- electrode cable seal groove is frozen in the column type body 8- sense of 7- sensor main body part
The anti-sebific duct that rises of the bubble intracavitary detecting electrode 12- of connectivity slot 11- is frozen in 10- sense
13- water injection hole 14- drainage hole.
Specific embodiment
Below in conjunction with the attached drawing structure that the present invention will be described in detail and production application method: the present invention is passed by column type as shown in the figure
Sensor main component (4), underground outer sleeve (5), heat insulating mattress (3), connection socket (2), automatic collector (1) are composed.Wherein,
The column type sensor main body part (4) uses diameter to process for the solid material of the non-metallic material of 18mm, inner vertical direction
It is 1cm equipped with 151 centre distances, the sense of diameter 8mm, a length of 10mm jelly bubble chamber (8), the vertical of bubble chamber (8) is frozen in each sense
Be the intracavitary detecting electrode (11) of 1.5mm, long 6mm stainless steel material embedded with diameter on wall, electrode cable through longitudinal 4 ×
The electrode cable seal groove (9) of 5mm is corresponding with 151 bore in connection socket (2) to be arranged successively connection.Longitudinal sense is frozen bubble and is connected
151 senses are frozen bubble chamber (8) connection by through slot (10), are above set water injection hole (13), and lower end sets drainage hole (14), fill tap water, are arranged
Drainage hole (14) and water injection hole (13) are closed after bubble to the greatest extent.Again by the anti-glue that rises of one silicon rubber of sensor main body part (4) jacket hoop
It manages (12), is inserted into together after being connect with the connection socket (2) fixed in the ground lower sleeve (5) of PPE material.In connection socket
(2) top is equipped with an automatic collector (1), and the inside of automatic collector (1) is equipped with electronic commutator, single-chip microcontroller controls
System, memory, power supply circuit, communication interface simultaneously have scene setting, operating status to show, each function system realization effectively connects
It can be carried out automatic frozen soil detection after connecing.The detection voltage that automatic collector provides sensor is AC12V.
In use, powering on, electronic commutator is controlled using single-chip computer control system, sequentially one by one to adjacent two
Alternating voltage data realize acquisition, judgement storage between a intracavitary detecting electrode (11), are passed to host computer by 485 transmission modes and accuse
Know, implements the automatic detection work of frozen soil with this.
Claims (4)
1. freezing resistive frozen soil sensor, by column type sensor main body part (4), underground outer sleeve (5), heat insulating mattress (3), connection socket
(2), automatic collector (1) forms, it is characterized in that the column type sensor main body part (4) is formed by process for un-metal material, prolongs
It is axial ipsilateral to set gradually that several diameters are 8mm, center freezes bubble chamber (8) and freeze bubble by axial sense and connects away from the sense for 1cm
Through slot (10) is ganged up, and the inner wall vertical direction that bubble chamber (8) is frozen in each sense draws warp embedded with detecting electrode (11) electrode cable respectively
The bore of socket (2) is corresponding is arranged successively connection with connection for electrode cable seal groove (9)；The upper end that bubble connectivity slot (10) is frozen in sense is set
Have water injection hole (13), lower end is set drainage hole (14), the anti-sebific duct that rises of one silicon rubber of column type sensor main body part (4) jacket hoop
(12), merging underground outer sleeve is placed in underground outer sleeve (5), and top passes through heat insulating mattress (3) and connects with socket (2) are connect.
2. freezing resistive frozen soil sensor according to claim 1, it is characterized in that bubble chamber (8) is frozen in the sense and bubble connectivity slot is frozen in sense
(10) tap water is filled by water injection hole (13).
3. freezing resistive frozen soil sensor according to claim 1, it is characterized in that the automatic collector (1), is consolidated by shield
It is scheduled on the upper end of connection socket (2), it is interior to be equipped with electronic commutator, single-chip computer control system, memory, power supply circuit, communication
Interface and scene setting, operating status are shown, are realized circuit with frozen soil sensor and host computer and are transmitted effective connection of signal.
4. freezing resistive frozen soil sensor according to claim 1, it is characterized in that the automatic collector is to utilize single-chip microcontroller control
System processed controls electronic commutator, sequentially adopts one by one to two adjacent intracavitary detecting electrode (11) alternating voltage data realizations
Collection, judgement, storage are passed to host computer by 485 transmission modes and informed, implemented the automatic detection work of frozen soil with this.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710207837.7A CN106940334B (en) | 2017-03-31 | 2017-03-31 | Freeze resistive frozen soil sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710207837.7A CN106940334B (en) | 2017-03-31 | 2017-03-31 | Freeze resistive frozen soil sensor |
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| Publication Number | Publication Date |
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| CN106940334A CN106940334A (en) | 2017-07-11 |
| CN106940334B true CN106940334B (en) | 2019-04-23 |
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| CN201710207837.7A Active CN106940334B (en) | 2017-03-31 | 2017-03-31 | Freeze resistive frozen soil sensor |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108981560B (en) * | 2018-05-25 | 2021-07-27 | 河海大学 | Detection device for embedding depth of dam anti-seepage film and use method |
| CN112098632A (en) * | 2020-09-24 | 2020-12-18 | 秦皇岛市气象局 | Remote observation method and system based on automatic frozen soil observation instrument |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4406160A (en) * | 1979-08-02 | 1983-09-27 | Dai Nippon Insatsu Kabushiki Kaisha | Method of inspecting a resist layer on a gravure printing plate, and device for practicing same |
| JP2003292097A (en) * | 2002-04-02 | 2003-10-15 | Hoshizaki Electric Co Ltd | Cold beverage feeder |
| CN103901182A (en) * | 2014-04-29 | 2014-07-02 | 北京林业大学 | Multi-section tubular frozen soil sensor and frozen soil detection system |
| CN106324043A (en) * | 2016-08-19 | 2017-01-11 | 成都理工大学 | Device and method for monitoring wetting depth of landslide mass |
-
2017
- 2017-03-31 CN CN201710207837.7A patent/CN106940334B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4406160A (en) * | 1979-08-02 | 1983-09-27 | Dai Nippon Insatsu Kabushiki Kaisha | Method of inspecting a resist layer on a gravure printing plate, and device for practicing same |
| JP2003292097A (en) * | 2002-04-02 | 2003-10-15 | Hoshizaki Electric Co Ltd | Cold beverage feeder |
| CN103901182A (en) * | 2014-04-29 | 2014-07-02 | 北京林业大学 | Multi-section tubular frozen soil sensor and frozen soil detection system |
| CN106324043A (en) * | 2016-08-19 | 2017-01-11 | 成都理工大学 | Device and method for monitoring wetting depth of landslide mass |
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Effective date of registration: 20221208 Address after: 201, No. 7-1, Shiji Road, Hunnan District, Shenyang City, 110,000 Liaoning Province Patentee after: Shenyang Huakai High tech Co.,Ltd. Address before: 110003 Room 2012, Bainaowei, Sanhao Street, Heping District, Shenyang, Liaoning Patentee before: SHENYANG XINLI NEW INFORMATION TECHNOLOGY Co.,Ltd. |