CN107917690A - Frost penetration measuring device based on pressure sensor - Google Patents
Frost penetration measuring device based on pressure sensor Download PDFInfo
- Publication number
- CN107917690A CN107917690A CN201810014074.9A CN201810014074A CN107917690A CN 107917690 A CN107917690 A CN 107917690A CN 201810014074 A CN201810014074 A CN 201810014074A CN 107917690 A CN107917690 A CN 107917690A
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- Prior art keywords
- pressure sensor
- measuring device
- inner tube
- frost penetration
- tube
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Classifications
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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
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/18—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring depth
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses the frost penetration measuring device based on pressure sensor, it is related to frost penetration field of measuring technique；It includes the outer tube of freezing meter, inner tube, pressure sensor and controller, and said inner tube is located in outer tube, and the pressure sensor is set on inner pipe, and the pressure sensor is connected with controller one-way communication；Its change by judging pressure sensor output resistance, realizes automatic detection frost penetration, and detection is convenient, and without going observation field to operate daily, measurement efficiency and accuracy are high.
Description
Technical field
The present invention relates to frost penetration field of measuring technique, more particularly to a kind of frost penetration based on pressure sensor to survey
Measure device.
Background technology
In permafrost region tissue production and construction, it is often necessary to carry out frost penetration measurement.Study and freeze in Climate and Environment Variation
The fields such as native Forecast of Meteorological Disaster, frost penetration measurement are also indispensable.
Existing frozen soil observation technology is manually carried out at daily 8, and the iron covering of one hand handle freezing meter is together with interior during observation
Pipe lifts, and is touched with another hand and surveys inner tube icicle position, and the corresponding quarter of icicle upper and lower ends is read from wall pipe graduation mark
The number of degrees simultaneously record.This mode is not only complicated, expends a large amount of manpower and materials, while the subjective impact of artificial observation is larger.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of frost penetration measuring device based on pressure sensor, its
Belong to a kind of meteorological sensor, this equipment is installed on the location for having covering in observation field, when surface temperature drops to 0 DEG C or 0 DEG C
Hereinafter, observed during frost in the soil, obtain frost penetration information, a row pressure is installed in the inner side of the inner tube in the outer tube of freezing meter
Sensor, its change by judging pressure sensor output resistance, realizes automatic detection frost penetration, detects convenient, nothing
Observation field need to be gone to operate daily, measurement efficiency and accuracy are high.
In order to solve the above technical problems, the technical solution used in the present invention is：It include the outer tube of freezing meter, inner tube,
Pressure sensor and controller, said inner tube are located in outer tube, and the bottom end closure of inner tube, the pressure sensor is arranged on inner tube
On, the pressure sensor is connected with controller one-way communication.
Further technical solution is：The pressure sensor is the pressure sensor linear transducer array in a column distribution.
Further technical solution is：The pressure sensor linear transducer array includes 324 pressure sensors and pops one's head in, often
One pressure sensor probe is connected with controller one-way communication.
Further technical solution is：It further includes amplifier and analog to digital conversion circuit, the pressure sensor, amplification
Device, analog to digital conversion circuit and controller are sequentially connected.
Further technical solution is：The pressure sensor is arranged on the inner side of inner tube.
Further technical solution is：Inner tube graduated scale is provided with said inner tube.
Further technical solution is：Said inner tube is rubber tube.
Further technical solution is：Outer tube graduated scale is provided with the outer tube.
Further technical solution is：The outer tube is ebonite tube.
Further technical solution is：It further includes computer and internet, and the controller passes through internet and meter
Calculation machine connects.
It is using beneficial effect caused by above-mentioned technical proposal：
First, inner tube is located in outer tube, and pressure sensor is set on inner pipe, pressure sensor and controller one-way communication
Connection, volumetric expansion during water freezing in the inner tube of freezing meter, can change the inner wall pressure of inner tube, to pressure sensor
Pressure change so that pressure sensor output resistance changes, by judging the change of pressure sensor output resistance,
Realize automatic detection frost penetration, detection is convenient, and without going observation field to operate daily, measurement efficiency and accuracy are high.
Second, pressure sensor is the pressure sensor linear transducer array in a column distribution, just as surveyors' staff, in depth
Spending on direction can effective measuring frozen depth.
3rd, pressure sensor linear transducer array includes 324 pressure sensors and pops one's head in, and can continuously obtain in the depth direction
Obtain 324 corresponding data, accurate measuring frozen depth.
4th, pressure sensor, amplifier, analog to digital conversion circuit and controller are sequentially connected, and amplifier is by pressure sensing
The trace voltage signal of device probe is converted to the voltage signal of 0~5V that analog to digital conversion circuit can be read, and analog to digital conversion circuit is by 0
The voltage signal of~5V is converted into the identifiable digital signal of controller.
5th, pressure sensor is arranged on the inner side of inner tube, can preferably detect inner tubal wall pressure change.
6th, inner tube graduated scale is provided with inner tube, is provided with outer tube graduated scale on outer tube, outer tube and inner tube during installation
0cm lines scale should be concordant, and with earth's surface in same level, installation is simple, and calibration accuracy is high, step calibration work be in order to
Accurate measuring frozen depth.
7th, inner tube is the rubber tube of bottom end closure, and outer tube is ebonite tube, easy to irrigate local tap water in inner tube
And inner and outer tubes are prevented to be split up.
8th, controller is connected by internet with computer, and convenient realize is analyzed from pressure sensor on computers
The data sent, so as to judge frozen soil position.
Brief description of the drawings
Fig. 1 is the structure chart of the present invention；
Fig. 2 is the structural principle block diagram of the present invention；
Fig. 3 is the data scanning transmission principle figure of pressure sensor in the present invention；
Fig. 4 is the interconnector figure of pressure sensor in the present invention.
Wherein：1 outer tube, 2 inner tubes, 3 pressure sensors.
Embodiment
With reference to the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Ground describes, it is clear that described embodiment is only the part of the embodiment of the present invention, instead of all the embodiments.Based on this
Embodiment in invention, the every other reality that those of ordinary skill in the art are obtained without making creative work
Example is applied, belongs to the scope of protection of the invention.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still the present invention can be with
Implemented using other different from other manner described here, those skilled in the art can be without prejudice to intension of the present invention
In the case of do similar popularization, therefore the present invention is from the limitation of following public specific embodiment.
As Figure 1-Figure 4, the invention discloses a kind of frost penetration measuring device based on pressure sensor, it includes
The outer tube 1 of freezing meter, inner tube 2, electric power driving module, pressure sensor 3, amplifier, analog to digital conversion circuit, controller, interconnection
Net and computer, said inner tube 2 are the rubber tube of bottom end closure, and inner tube graduated scale is provided with inner tube 2；The outer tube 1 is
Ebonite tube, is provided with outer tube graduated scale on outer tube 1；Said inner tube 2 is located in outer tube 1, and the pressure sensor 3 is arranged on
The inner side of inner tube 2；The pressure sensor 3 is the pressure sensor linear transducer array in a column distribution, it includes 324 pressure and passes
Sensor is popped one's head in；The electric power driving module, pressure sensor 3, amplifier, analog to digital conversion circuit and controller are sequentially connected, institute
Controller is stated to be connected with computer by internet, each pressure sensor probe by amplifier and analog to digital conversion circuit with
Controller connects.
The model RFP602 of the pressure sensor probe.
Installation instructions：
The outer tube 1 and inner tube 2 of freezing meter need to be installed on the location for having natural cover in observation field；During installation, 1 He of outer tube
The 0cm lines scale of inner tube 2 should be concordant, and with earth's surface in same level；During installation, boring method should be used by the outer of freezing meter
Pipe 1 is vertically buried in the earth, outer tube 1 buries put after, the gap between 1 outside surrounding of outer tube and soil layer is filled with fine earth, smash it is tight.
Mechanical analysis software is worked out on computers, for analyzing the data sent from pressure sensor 3, so as to judge to freeze
Native position.
Operation instruction：
Local clean river water, well water or tap water need to be irrigated in inner tube 2 before using present invention detection to 0cm line scales
Place, its change by judging 3 output resistance of pressure sensor, realizes automatic detection frost penetration, simple operation, measurement effect
Rate and accuracy are high.
Operation principle：
The volumetric expansion when the water freezing in the inner tube 2 of freezing meter, its pressure change to pressure sensor 3, so as to press
3 output resistance of force snesor changes.
The strain resistor of each pressure sensor probe is changing into correspondence with ambient pressure, will by amplifier
The trace voltage signal of input is converted to the voltage signal for 0~5V that analog to digital conversion circuit can be read, the size of the voltage signal
It is as follows into curve one-to-one relationship, formula with pressure value in practice：
Wherein RSFor the strain resistor of pressure sensor probe, RFFor comparison resistance, VTFor compliance voltage, Vout is conversion
Voltage.
In the data scanning transmitting procedure of pressure sensor 3, it is scanned using matrix-scanning pattern, so as to transmit each
The pressure change that a pressure sensor probe detects, so as to detect frozen soil position.
Pressure sensor 3 will be applied to the pressure conversion of 3 induction zone of pressure sensor into resistance signal, according to power-resistance
Calibration relation curve learn：Pressure is bigger, and the resistance that pressure sensor 3 exports is smaller.Water freezing in the inner tube 2 of freezing meter
When volumetric expansion, can change to the inner wall pressure of inner tube 2, to the pressure change of pressure sensor 3, so that pressure sensor
3 output resistances change, and easier can accurately detect frost penetration.
Go to operate freezing meter in observation field daily without operating personnel, by checking that the resistance that pressure sensor 3 is fed back becomes
Change and can determine whether frost penetration, not only save manpower and materials, while it is subjective also to have prevented operating personnel in existing observation technology
The phenomenon of error in reading.
Claims (10)
- A kind of 1. frost penetration measuring device based on pressure sensor, it is characterised in that：It includes the outer tube of freezing meter（1）、 Inner tube（2）, pressure sensor（3）And controller, said inner tube（2）Positioned at outer tube（1）In, inner tube（2）Bottom end closure, it is described Pressure sensor（3）It is arranged on inner tube（2）On, the pressure sensor（3）It is connected with controller one-way communication.
- 2. the frost penetration measuring device according to claim 1 based on pressure sensor, it is characterised in that：The pressure Sensor（3）For in the pressure sensor linear transducer array of a column distribution.
- 3. the frost penetration measuring device according to claim 2 based on pressure sensor, it is characterised in that：The pressure Sensor probe array includes 324 pressure sensors and pops one's head in, each pressure sensor probe connects with controller one-way communication Connect.
- 4. the frost penetration measuring device according to claim 3 based on pressure sensor, it is characterised in that：It is further included Amplifier and analog to digital conversion circuit, the pressure sensor（3）, amplifier, analog to digital conversion circuit and controller be sequentially connected.
- 5. the frost penetration measuring device according to claim 1 based on pressure sensor, it is characterised in that：The pressure Sensor（3）It is arranged on inner tube（2）Inner side.
- 6. the frost penetration measuring device according to claim 1 based on pressure sensor, it is characterised in that：Described interior Pipe（2）On be provided with inner tube graduated scale.
- 7. the frost penetration measuring device according to claim 6 based on pressure sensor, it is characterised in that：Said inner tube （2）For rubber tube.
- 8. the frost penetration measuring device according to claim 7 based on pressure sensor, it is characterised in that：Described outer Pipe（1）On be provided with outer tube graduated scale.
- 9. the frost penetration measuring device according to claim 8 based on pressure sensor, it is characterised in that：The outer tube （1）For ebonite tube.
- 10. the frost penetration measuring device based on pressure sensor according to any one in claim 1-9, its feature It is：It further includes computer and internet, and the controller is connected by internet with computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810014074.9A CN107917690A (en) | 2018-01-08 | 2018-01-08 | Frost penetration measuring device based on pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810014074.9A CN107917690A (en) | 2018-01-08 | 2018-01-08 | Frost penetration measuring device based on pressure sensor |
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| Publication Number | Publication Date |
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| CN107917690A true CN107917690A (en) | 2018-04-17 |
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| CN201810014074.9A Pending CN107917690A (en) | 2018-01-08 | 2018-01-08 | Frost penetration measuring device based on pressure sensor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108663320A (en) * | 2018-05-23 | 2018-10-16 | 清华大学 | Sealing element lip surface quality detecting system based on array pressure sensor |
| CN109580609A (en) * | 2018-12-17 | 2019-04-05 | 河南中原光电测控技术有限公司 | A kind of frozen soil observation method and device based on colorimetric method |
| CN109579964A (en) * | 2019-01-23 | 2019-04-05 | 上海微晓电子科技有限公司 | A kind of weight detection system applied to powder storage box of coffee maker |
| CN112814681A (en) * | 2021-03-29 | 2021-05-18 | 神华北电胜利能源有限公司 | Coal mining method for open pit coal mine in frozen soil area |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004003889A (en) * | 2002-05-31 | 2004-01-08 | Nippon Telegr & Teleph Corp <Ntt> | Freezing sensor for optical fiber |
| JP2004257745A (en) * | 2003-02-24 | 2004-09-16 | Takenaka Komuten Co Ltd | Simple determination method of flow direction and flow speed of underground water by ground freezing technology |
| CN202054136U (en) * | 2011-01-10 | 2011-11-30 | 天津海洋数码科技有限公司 | Draft detection system |
| CN103076063A (en) * | 2013-01-21 | 2013-05-01 | 南京理工大学 | Optical fiber grating water and soil interface sensor and manufacturing and installation method thereof |
| CN105783838A (en) * | 2016-04-14 | 2016-07-20 | 哈尔滨今星微电子科技有限公司 | Frozen soil depth sensor |
| CN206052677U (en) * | 2016-09-14 | 2017-03-29 | 甘肃张掖生态科学研究院 | A kind of thickness of frozen earth layer measurement apparatus |
| CN206269727U (en) * | 2016-12-28 | 2017-06-20 | 哈尔滨商业大学 | A kind of frost penetration monitoring device |
| CN207688861U (en) * | 2018-01-08 | 2018-08-03 | 河北科技大学 | Frost penetration measuring device based on pressure sensor |
-
2018
- 2018-01-08 CN CN201810014074.9A patent/CN107917690A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004003889A (en) * | 2002-05-31 | 2004-01-08 | Nippon Telegr & Teleph Corp <Ntt> | Freezing sensor for optical fiber |
| JP2004257745A (en) * | 2003-02-24 | 2004-09-16 | Takenaka Komuten Co Ltd | Simple determination method of flow direction and flow speed of underground water by ground freezing technology |
| CN202054136U (en) * | 2011-01-10 | 2011-11-30 | 天津海洋数码科技有限公司 | Draft detection system |
| CN103076063A (en) * | 2013-01-21 | 2013-05-01 | 南京理工大学 | Optical fiber grating water and soil interface sensor and manufacturing and installation method thereof |
| CN105783838A (en) * | 2016-04-14 | 2016-07-20 | 哈尔滨今星微电子科技有限公司 | Frozen soil depth sensor |
| CN206052677U (en) * | 2016-09-14 | 2017-03-29 | 甘肃张掖生态科学研究院 | A kind of thickness of frozen earth layer measurement apparatus |
| CN206269727U (en) * | 2016-12-28 | 2017-06-20 | 哈尔滨商业大学 | A kind of frost penetration monitoring device |
| CN207688861U (en) * | 2018-01-08 | 2018-08-03 | 河北科技大学 | Frost penetration measuring device based on pressure sensor |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108663320A (en) * | 2018-05-23 | 2018-10-16 | 清华大学 | Sealing element lip surface quality detecting system based on array pressure sensor |
| CN109580609A (en) * | 2018-12-17 | 2019-04-05 | 河南中原光电测控技术有限公司 | A kind of frozen soil observation method and device based on colorimetric method |
| CN109579964A (en) * | 2019-01-23 | 2019-04-05 | 上海微晓电子科技有限公司 | A kind of weight detection system applied to powder storage box of coffee maker |
| CN112814681A (en) * | 2021-03-29 | 2021-05-18 | 神华北电胜利能源有限公司 | Coal mining method for open pit coal mine in frozen soil area |
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Application publication date: 20180417 |
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