CN107389260A - A kind of high multifunction soil sensor of precision - Google Patents
A kind of high multifunction soil sensor of precision Download PDFInfo
- Publication number
- CN107389260A CN107389260A CN201710878858.1A CN201710878858A CN107389260A CN 107389260 A CN107389260 A CN 107389260A CN 201710878858 A CN201710878858 A CN 201710878858A CN 107389260 A CN107389260 A CN 107389260A
- Authority
- CN
- China
- Prior art keywords
- pressure
- armor sleeve
- compression fittings
- porous cup
- hollow circular
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
-
- 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
-
- 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
-
- 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
- G01N2033/245—Earth materials for agricultural purposes
Abstract
The invention discloses a kind of high multifunction soil sensor of precision, Silicon pressure core body " O " type sealing ring is arranged on inside armor sleeve, the top of armor sleeve is provided with compression fittings by screw thread, pressure ring is connected by screw thread with compression fittings compresses Silicon pressure core body, signal processing circuit board is fixed on pressure ring by mounting screw, housing and compression fittings are integral by argon arc welding, the whole interior embedding silica gel；Porous cup is closely contacted on one end of the armor sleeve, hollow circular-tube built in porous cup, and the deionized water in hollow circular-tube is outwards overflowed by porous cup；Induction contact is arranged on the other end of armor sleeve, senses the internal pressure change of hollow circular-tube.The present invention directly exports characteristic curve of soil moisture, and process of measurement is simple, and measurement result is objective and accurate, has good permeance property, small volume, in light weight, all steel watertight structure, pressure-resistant etch-proof feature；The advantages that stability is good, and synthesis precision is high, and error is small.
Description
Technical field
The invention belongs to sensor technical field, and in particular to a kind of high multifunction soil sensor of precision.
Background technology
Soil is the important component of natural ecological environment, closely related with human lives and production activity.As more
Hole medium, soil form its solid-phase construction, water and air filling structure by the phase composition of solid, liquid, gas three, mineral matter and organic matter
In hole.In Agricultural Activities, the soil water is the important leverage of plant life, and not only influence crops has to fertilizer
Effect utilizes, and the series reaction with occurring in soil is relevant.Soil moisture content is to determine soil physics, chemistry and biology
The important parameter of character and process.The flow of water of the soil water determines the validity of its moisture.At present, characteristic curve of soil moisture is normal
Measuring method is：Soil matrix gesture and soil moisture content are determined respectively using distinct device to same soil sample, it determines journey
Sequence is not only cumbersome, and time consuming.Although domestic and international many scholars, which did, is directed to Journal of Sex Research, there is presently no one
Location observation while kind technology can realize soil matrix gesture and soil moisture content.
The species of the pressure sensor of current measurement water is a lot, main typical piezoresistive silicon sensor, for sticky mud
The pressure measxurement of slurry and soil reclaimed water has the defects of certain；Because piezoresistive silicon sensor is silicon microchip structure, it is not possible to straight
The sticky mud of measurement and soil reclaimed water are connect, and there may be harder particulate matter shape destructible 316L stainless steel diaphragms in them
Sensitive surface, so that influenceing the measurement accuracy of sensor.
The content of the invention
In view of the above-mentioned problems, it is an object of the invention to provide a kind of high multifunction soil sensor of precision, sensor are small
Type, it is corrosion-resistant, measurement range is wide and stability is good the characteristics of, with the mode monitored in real time, the hydraulic pressure in soil is carried out
Detection, to solve the problems, such as that legacy equipment causes mensuration program cumbersome, time consuming because measuring respectively.
The technical scheme that the present invention takes is：
The high multifunction soil sensor of a kind of precision, it is characterised in that Silicon pressure core body " O " type sealing ring is arranged on armouring
Inside pipe casing, the top of armor sleeve are provided with compression fittings by screw thread, and pressure ring connects compression with compression fittings by screw thread
Silicon pressure core body, signal processing circuit board are fixed on pressure ring by mounting screw, and housing and compression fittings pass through argon arc welding
It is integral, the whole interior embedding silica gel；Porous cup is closely contacted on one end of the armor sleeve, hollow circular-tube built in porous cup,
Deionized water in hollow circular-tube is outwards overflowed by porous cup；Induction contact is arranged on the other end of armor sleeve, and sensing is empty
The internal pressure change of heart pipe.
Further, the armor sleeve is made of ceramic materials.
Beneficial effects of the present invention are：
The present invention can measure soil moisture content and soil matrix gesture simultaneously using an equipment, directly export soil water dtex
Curve is levied, process of measurement is simple, and measurement result is objective and accurate.This sensor have good permeance property, small volume, it is in light weight,
All steel watertight structure, pressure-resistant etch-proof feature；The advantages that stability is good, and synthesis precision is high, and error is small.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
1st, armor sleeve；2nd, " O " type sealing ring；3rd, porous cup；4th, hollow circular-tube.
Embodiment
The high multifunction soil sensor of a kind of precision, it is characterised in that Silicon pressure core body " O " type sealing ring is arranged on
Inside armor sleeve, the top of armor sleeve is provided with compression fittings by screw thread, and pressure ring is connected by screw thread with compression fittings
Silicon pressure core body is compressed, signal processing circuit board is fixed on pressure ring by mounting screw, and housing and compression fittings pass through argon arc
Weld integral, the whole interior embedding silica gel；Porous cup is closely contacted on one end of the armor sleeve, hollow built in porous cup
Pipe, the deionized water in hollow circular-tube are outwards overflowed by porous cup；Induction contact is arranged on the other end of armor sleeve,
Sense the internal pressure change of hollow circular-tube.
Further, the armor sleeve is made of ceramic materials.
Claims (2)
1. the high multifunction soil sensor of a kind of precision, it is characterised in that Silicon pressure core body " O " type sealing ring is arranged on armour
Inside tubing, the top of armor sleeve is provided with compression fittings by screw thread, and pressure ring connects pressure with compression fittings by screw thread
Tight Silicon pressure core body, signal processing circuit board are fixed on pressure ring by mounting screw, and housing and compression fittings pass through argon arc welding
Entirety is connected into, the whole interior embedding silica gel；Porous cup is closely contacted on one end of the armor sleeve, open circles built in porous cup
Manage, the deionized water in hollow circular-tube is outwards overflowed by porous cup；Induction contact is arranged on the other end of armor sleeve, sense
The internal pressure of hollow circular-tube is answered to change.
A kind of 2. high multifunction soil sensor of precision according to claim 1, it is characterised in that the armor sleeve
It is made of ceramic materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710878858.1A CN107389260A (en) | 2017-09-26 | 2017-09-26 | A kind of high multifunction soil sensor of precision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710878858.1A CN107389260A (en) | 2017-09-26 | 2017-09-26 | A kind of high multifunction soil sensor of precision |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107389260A true CN107389260A (en) | 2017-11-24 |
Family
ID=60350047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710878858.1A Pending CN107389260A (en) | 2017-09-26 | 2017-09-26 | A kind of high multifunction soil sensor of precision |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107389260A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110988038A (en) * | 2019-12-12 | 2020-04-10 | 中国农业大学 | Soil moisture characteristic line measuring device and measuring method thereof |
| CN112362551A (en) * | 2020-10-29 | 2021-02-12 | 中国三峡建设管理有限公司 | Indoor convenient determination method and system for permeability of compact rock |
-
2017
- 2017-09-26 CN CN201710878858.1A patent/CN107389260A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110988038A (en) * | 2019-12-12 | 2020-04-10 | 中国农业大学 | Soil moisture characteristic line measuring device and measuring method thereof |
| CN112362551A (en) * | 2020-10-29 | 2021-02-12 | 中国三峡建设管理有限公司 | Indoor convenient determination method and system for permeability of compact rock |
| CN112362551B (en) * | 2020-10-29 | 2024-03-08 | 中国三峡建设管理有限公司 | Indoor convenient determination method and system for permeability of tight rock |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171124 |
|
| WD01 | Invention patent application deemed withdrawn after publication |