CN207688861U - Frost penetration measuring device based on pressure sensor - Google Patents
Frost penetration measuring device based on pressure sensor Download PDFInfo
- Publication number
- CN207688861U CN207688861U CN201820023732.6U CN201820023732U CN207688861U CN 207688861 U CN207688861 U CN 207688861U CN 201820023732 U CN201820023732 U CN 201820023732U CN 207688861 U CN207688861 U CN 207688861U
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- pressure sensor
- measuring device
- inner tube
- frost penetration
- controller
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Abstract
The utility model discloses the frost penetration measuring devices based on pressure sensor, are related to frost penetration field of measuring technique；It includes outer tube, inner tube, pressure sensor and the controller of freezing meter, and said inner tube is located in outer tube, and on inner pipe, the pressure sensor is connect with controller one-way communication for the pressure sensor setting；Automatic detection frost penetration is realized in its variation by judging pressure sensor output resistance, and detection is convenient, and without going observation field to operate daily, measurement efficiency and accuracy are high.
Description
Technical field
The utility model is related to frost penetration field of measuring technique more particularly to a kind of frozen soil based on pressure sensor are deep
Spend measuring device.
Background technology
In permafrost region tissue production and construction, it is often necessary to carry out frost penetration measurement.It studies and freezes in Climate and Environment Variation
The fields such as native Forecast of Meteorological Disaster, it is also indispensable that frost penetration, which measures,.
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 when 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 for operation, expends a large amount of manpower and materials, while the subjective impact of artificial observation is larger.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of, and the frost penetration based on pressure sensor measures dress
It sets, belongs to a kind of meteorological sensor, this equipment is mounted on the location for having covering in observation field, when surface temperature drops to 0 DEG C
Or 0 DEG C hereinafter, when frost in the soil, is observed, and obtains frost penetration information, the inside installation one of the inner tube in the outer tube of freezing meter
Row pressure sensor realizes automatic detection frost penetration, detection is just by judging the variation of pressure sensor output resistance
Victory, without going observation field to operate daily, measurement efficiency and accuracy are high.
In order to solve the above technical problems, technical solution adopted in the utility model is：It includes the outer tube, interior of freezing meter
Pipe, pressure sensor and controller, said inner tube are located in outer tube, the bottom end closure of inner tube, and the pressure sensor setting exists
In inner tube, the pressure sensor is connect 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 that 324 pressure sensors are popped one's head in, often
One pressure sensor probe is connect 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 in the inside of inner tube.
Further technical solution is：Inner tube graduated scale is provided in said inner tube.
Further technical solution is：Said inner tube is rubber tube.
Further technical solution is：Outer tube graduated scale is provided on 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 advantageous effect caused by above-mentioned technical proposal：
First, inner tube is located in outer tube, and pressure sensor is arranged on inner pipe, pressure sensor and controller one-way communication
Connection, volume expansion when water freezing in the inner tube of freezing meter, can change to the inner wall pressure of inner tube, to pressure sensor
Pressure change, change to pressure sensor output resistance, by judging the variation 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.
Third, pressure sensor linear transducer array include that 324 pressure sensors are popped one's head in, and can continuously be obtained 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 in the inside of inner tube, can preferably detect inner tubal wall pressure change.
6th, inner tube graduated scale is provided in inner tube, is provided with outer tube graduated scale on outer tube, outer tube and inner tube when installation
0cm line scales should be concordant, and with earth's surface in same level, and 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, convenient for local tap water is perfused in inner tube
And inner and outer tubes is prevented to be split up.
8th, controller is connect by internet with computer, and realization is facilitated to be analyzed on computers from pressure sensor
The data sent, to judge frozen soil position.
Description of the drawings
Fig. 1 is the structure chart of the utility model；
Fig. 2 is the structural principle block diagram of the utility model；
Fig. 3 is the data scanning transmission principle figure of pressure sensor in the utility model；
Fig. 4 is the interconnector figure of pressure sensor in the utility model.
Wherein：1 outer tube, 2 inner tubes, 3 pressure sensors.
Specific implementation mode
With reference to the attached drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out clear
Chu is fully described by, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than whole realities
Apply example.Based on the embodiments of the present invention, those of ordinary skill in the art institute without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Many details are elaborated in the following description in order to fully understand the utility model, but this practicality is new
Type can also be implemented using other different from other manner described here, and those skilled in the art can be without prejudice to this reality
With doing similar popularization in the case of novel intension, therefore the utility model is not limited by following public specific embodiment.
As Figure 1-Figure 4, the frost penetration measuring device based on pressure sensor that the utility model discloses a kind of,
Outer tube 1, inner tube 2, electric power driving module, pressure sensor 3, amplifier, analog to digital conversion circuit, controller including freezing meter,
Internet and computer, said inner tube 2 are the rubber tube of bottom end closure, and inner tube graduated scale is provided in inner tube 2；The outer tube
1 is ebonite tube, and outer tube graduated scale is provided on outer tube 1；Said inner tube 2 is located in outer tube 1, and the pressure sensor 3 is set
It sets in the inside of inner tube 2；The pressure sensor 3 is the pressure sensor linear transducer array in a column distribution comprising 324 pressures
Force snesor is popped one's head in；The electric power driving module, pressure sensor 3, amplifier, analog to digital conversion circuit and controller connect successively
It connects, the controller is connect by internet with computer, each pressure sensor probe passes through amplifier and analog-to-digital conversion
Circuit is connect with controller.
The model RFP602 of the pressure sensor probe.
Installation instructions：
The outer tube 1 and inner tube 2 of freezing meter need to be mounted on the location for having natural cover in observation field；When installation, 1 He of outer tube
The 0cm line scales of inner tube 2 should be concordant, and with earth's surface in same level；When installation, boring method should be used the outer of freezing meter
Pipe 1 is vertically buried in the earth, outer tube 1 buries put after, between 1 outside surrounding of outer tube and soil layer the filling of gap fine earth, smash it is tight.
Mechanical analysis software is worked out on computers, for analyzing the data sent from pressure sensor 3, to judge to freeze
Native position.
Operation instruction：
Local clean river water, well water or tap water need to be perfused in inner tube 2 before using the utility model detection to 0cm lines
At scale, by judging the variation of 3 output resistance of pressure sensor, realize that automatic detection frost penetration, simple operation are surveyed
Amount efficiency and accuracy are high.
Operation principle：
The volume expansion when the water freezing in the inner tube 2 of freezing meter, to the pressure change of pressure sensor 3, 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
With pressure value in practice at curve one-to-one relationship, formula is as follows：
Wherein RSFor the strain resistor of pressure sensor probe, RFFor comparison resistance, VTFor compliance voltage, Vout is conversion
Voltage.
In the data scanning transmission process of pressure sensor 3, it is scanned using matrix-scanning pattern, it is each to transmit
The pressure change that a pressure sensor probe detects, to detect frozen soil position.
Pressure sensor 3 will be applied to the pressure conversion of 3 induction zone of pressure sensor at 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 volume expansion, can change to the inner wall pressure of inner tube 2, to the pressure change of pressure sensor 3, to pressure sensor
3 output resistances change, and easier can accurately detect frost penetration.
It goes 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 that error in reading.
Claims (10)
1. a kind of 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 in inner tube（2）On, the pressure sensor（3）It is connect 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 that 324 pressure sensors are popped one's head in, each pressure sensor probe connects with controller one-way communication
It connects.
4. the frost penetration measuring device according to claim 3 based on pressure sensor, it is characterised in that：It further includes
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 in inner tube（2）Inside.
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 of claim 1-9, feature
It is：It further includes computer and internet, and the controller is connect by internet with computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820023732.6U CN207688861U (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 |
|---|---|---|---|
| CN201820023732.6U CN207688861U (en) | 2018-01-08 | 2018-01-08 | Frost penetration measuring device based on pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207688861U true CN207688861U (en) | 2018-08-03 |
Family
ID=62991450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820023732.6U Expired - Fee Related CN207688861U (en) | 2018-01-08 | 2018-01-08 | Frost penetration measuring device based on pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207688861U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107917690A (en) * | 2018-01-08 | 2018-04-17 | 河北科技大学 | Frost penetration measuring device based on pressure sensor |
-
2018
- 2018-01-08 CN CN201820023732.6U patent/CN207688861U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107917690A (en) * | 2018-01-08 | 2018-04-17 | 河北科技大学 | Frost penetration measuring device based on pressure sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180803 Termination date: 20190108 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |