CN104792651A - Automatic soil boundary water content detection device - Google Patents
Automatic soil boundary water content detection device Download PDFInfo
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- CN104792651A CN104792651A CN201510205333.2A CN201510205333A CN104792651A CN 104792651 A CN104792651 A CN 104792651A CN 201510205333 A CN201510205333 A CN 201510205333A CN 104792651 A CN104792651 A CN 104792651A
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Abstract
The invention relates to an agriculture soil moisture detection system, and in particular discloses an automatic soil boundary water content detection device which comprises a cubic container, wherein the cubic container comprises a cuboidcontainer and a square container; the cuboid container is fixed on an electronic scale; the electronic scale is arranged on a conveyer belt; a leveling device, a circular cone and a heating tank are sequentially fixed above the conveyer belt from left to right; a stirring container is arranged on the outer side of the conveyer belt; the heating box is semi-sealed; a measuring container is arranged inside the cubic container; the cross section of the lower part of the stirring container is smaller than that of the measuring container; the bottom of the heating box is flush with the cuboid container; a blade is arranged in the middle of the leveling device; a right baffle is arranged on the right side of the leveling device. Operation can be simultaneously carried out on the left side and the right side of the automatic soil boundary water content detection device, the depth is measured on the right side, the quality is measured on the left side, and multiple groups of data can be simultaneously acquired and uploaded to a host computer in real time, so that the automatic soil boundary water content detection device has the characteristics of high automation degree, high simplicity and easiness in operation and low cost, and can be widely applied to water content measurement on various types of agriculture soil.
Description
Technical field
The present invention relates to agricultural soil moisture detection system, be specifically related to a kind of soil limit moisture content automatic detection device.
Background technology
In agricultural production, the growth that soil is not only plant provides physical support, is also the nutrition library of plant growth.Water is the lifeblood ensureing crop growth, and the series reaction occurred in soil, energy and mass exchange are all relevant with moisture, and its direct relation Crops production and quality.The measurement of soil moisture content measures for aspect important in inhibitings such as effective resource management, irrigation practice, plant growth and chemical substance detections; In water conservancy and meteorology, the Accurate Determining of soil moisture studies important role for the exchange of the distribution of earth surface effective energy, sensible heat and latent heat and air and the distribution that enters to blend runoff, in addition it or the important parameter of precision agriculture.Approximate relation between the soil dielectric constant that TOPP (1980) provides by experiment and soil moisture content, is called TOPP formula, facts have proved that this empirical formula can obtain higher precision under the edaphic condition of dissimilar, composition.
The detection method of traditional soil limit moisture content includes TDR method, depressimeter method, NEUTRON METHOD, electrode method, sampling oven drying method etc., and above-mentioned detection method all exists certain technological deficiency:
TDR method (Time-Domain Reflectometry, also claims time domain reflection technology), is a kind of remote metering technology analyzed reflection wave, grasps the situation of measured object at remote control position; The principle that the electromagnetic wave that the electromagnetic wave utilizing instrument to launch certain frequency returns when running into the soil of different soils moisture changes to some extent is measured.With soil moisture be object, based on TDR measuring principle reflection interval difference much smaller than cable fault diagnosis location reflection interval poor, typical reflection measuring technique cannot realize soil moisture instrumentation design.TDR is one of state-of-the-art soil moisture fast measurement technique in the world today.TDR monitoring landslide, garbage loading embeading, rivers and reservoir dam safely etc. in play a role, be all widely used in fields such as agricultural, forestry, gardening, hydrology, ecology, civil engineering work, waste management, food processing, mining industry and storage industry.
Soil moisture is measured in TDR changes the electromagnetic wave signal velocity of propagation on TDR probe caused change by measuring soil moisture content, when probe length one timing, is just converted into the measurement to signal propagation time.It is very little that soil moisture content changes the electromagnetic wave signal travel-time variable quantity caused, the change that soil moisture content changes the electromagnetic wave signal travel-time caused is less, in order to reach certain soil moisture measurement precision, just require that the resolution of TDR to time measurement is higher, this proposes very high requirement to the waveform sampling circuit of TDR system.In addition, in order to reach certain measuring accuracy, usually require that the rising time of the test signal of TDR system is less than 200ps, this just it is also proposed very high requirement to its signal generator.Due to must complexity be adopted and the high high-frequency electron device of price, make the price of existing TDR instrument all very expensive, be unfavorable for that large-scale popularization uses in agricultural production.And the soil moisture measurement unit of TDR principle is all using the step pulse of steep rise as pumping signal substantially so far, the gordian technique measuring the reflection time difference is also immature.CN 101216439 B discloses a kind of soil moisture measurement unit, adopts soil probe to measure, is obtained the unit volume water percentage of tested soil by pulse signal.Although achieve instrumentation on detection level, but still it is fragile to there is Soil K+adsorption probe, measures and there is the loss of signal, the more high defect of pulser cost.
CN 101762612 B discloses a kind of time domain reflecting soil moisture tester and measuring method, the sine voltage signal of the single-frequency adopting high frequency sinusoidal voltage signal source to produce, two paths of signals is divided into by signal distributor, one tunnel is sent to probe through circulator by concentric cable, another road is sent to phase detectors through time delay cable, the test signal at probe place returns circulator via concentric cable after reflection, reflected signal and incoming signal are separated by circulator, reflected signal is sent to phase detectors, the phase differential of incoming signal and reflected signal is converted to the d. c. voltage signal be directly proportional with it by phase detectors, thus detect soil water content to be measured.It is higher that this instrument equally also also exists cost, is unfavorable for the feature of industrialization.
TDR measures the accuracy of soil moisture content and depends on main frame measures the various character of soil impact on the length of the accuracy of identification of time, the quality of probe and type, concentric cable used and institute, and the factors such as the soil weight, the content of organic matter, conductivity and quality all can affect the precision of TDR mensuration water cut.A large amount of theories and experimental study prove: the soil moisture tester based on TDR method can meet the requirement of real-time of Quick Measurement, porous medium object to this complexity of soil, although the change of water cut θ can cause the change of DIELECTRIC CONSTANT ε significantly, but under the condition that sensor probe geometrical length is restricted, Gu the incidence caused by gas--liquid mixture DIELECTRIC CONSTANT ε-reflection interval, poor Δ T was but only 10-9 number of seconds magnitude.To carrying out Measurement accuracy so short retardation time, very big from the angle difficulty of radio survey technology, corresponding very high based on classic method TDR soil moisture tester device cost, cannot be widely used in agricultural land soil soil moisture content Real-Time Monitoring and water saving irrigation automatic control system.Time domain reflectometry measures the impact that soil moisture content is also subject to the foreign material such as stone, air gap in soil surveying sensitizing range, soil property, TDR probe geometry, tested soil.
Another kind of classic method, what depressimeter method (Tensiometer) was measured is soil water suction, measuring principle is: after pot clay end inserts tested soil, in pipe, free water is contacted with the holard by porous potter's clay wall, flow of water balance is reached after exchanging, now, the numerical value read from tensiometer is exactly the suction value of the holard (pot clay end), also the value of the matric potential after ignoring gravity potential is, then according to the relation (soil water characteristic curve) between soil moisture content and matric potential, namely along with the negative pressure in the change pipe of soil moisture changes, soil moisture rate is drawn through conversion.The direct object measured due to it is soil matrix gesture, is therefore combining for measuring characteristic curve of soil moisture with other soil moisture measurement method more.
NEUTRON METHOD (Neutron scattering) is exactly measure soil moisture content with Neutron, the composition of Neutron mainly comprises: a fast neutron source, a slow neutron detecting device, the counter of the slow-neutron flux of monitoring soil scattering and Shielded enclosure, test hard tube etc.Fast neutron source constantly radiates the very strong fast neutron of penetration power in soil, when it and hydrogen nuclei collision, off-energy is maximum, be converted into slow neutron (thermal neutron), by Absorption of Medium while thermal neutron spreads in media as well, so around probe, the slow neutron cloud of Chang Midu is held in very fast defining.NEUTRON METHOD application is few, is utilize neutron irradiation when running into different soil moisture, and the back amount difference of neutron measures the moisture of soil.Although have high precision based on the NEUTRON METHOD of radiation theory, the advantages such as fast speed, because it also exists the critical defect worked the mischief to health, abandoned gradually in recent years.
Electrode method (Electrical resistance) utilizes containing certain salinity in soil, and have electric conductivity, gather electric signal through instrument, conversion display, represents soil water content.The conductive capability of porous medium be with its water cut and specific inductive capacity relevant, if ignore the impact of saliferous, be have the electric-resistivity method determining relation to be, in being placed into the soil by two electrodes, then measure the resistance between two electrodes between moisture and its resistance.But in this case, electrode is likely much bigger than the resistance of soil with the contact resistance of soil.Therefore adopt and electrode is embedded the middle resistance bolck that formed of porous medium (gypsum, nylon, glass fibre etc.) to address this problem.Owing to demarcating complexity, and As time goes on, its calibration result will lose efficacy very soon, and due to measurement range limited, the not high a series of reason of precision, cannot meet the needs that now agricultural application detects.
Sampling oven drying method (Gravimetric) gathers representational pedotheque in field, and being current a kind of uniquely method directly can measuring soil moisture, is also current international standard detecting method.Earth boring auger is adopted to take soil sample, the weight of soil sample is taken with the balance of 0.1g precision, be denoted as the weight in wet base M of soil sample, in the baking oven of 105 DEG C, soil sample is dried 6-8 little of constant weight, then measure and dry soil sample, be denoted as the dry weight of soil sample, soil moisture content=(before drying after aluminium box and quality of soil sample-ovens dry aluminium box and quality of soil sample)/(dry rear aluminium box and quality of soil sample-dry empty aluminium box quality) * 100%.Sampling oven drying method has the unhandy shortcoming of detection, but as directly measuring the unique method of soil water content, measuring accuracy has the advantage that other method is incomparable, therefore it is as a kind of laboratory measurement method and the demarcation for other method, and it has long-standing meaning.
The ultimate principle of gamma-radiation method (Gamma-ray attenuation) is gamma-radiation method that radioactive isotope (existing conventional be 137Cs, 241Am) is launched when penetrating soil, and its dough softening improves with the increase of soil wet unit weight.Although have high precision based on the gamma-radiation method of radiation theory, the advantage of fast speed, because it also exists the critical defect worked the mischief to health, abandoned in developed country in recent years, also only had a small amount of for experimental study at home.
Standing-wave ratio (SWR) method (Standing wave ratio), deterministic monodrome polynomial relation is there is since the people such as Top proposed between soil moisture content and soil dielectric constant in 1980, thus open a kind of new research direction for the research of soil moisture measurement, namely the specific inductive capacity by measuring soil tries to achieve soil moisture content from electromagnetic angle, all insulators have that can to look at be dielectric, and for soil, be then the potpourri in solid phase of soil material, water and air three kinds of dielectric compositions.Under normal temperature state, the specific inductive capacity of water is about 80, and the specific inductive capacity of solid phase of soil material is about 3-5, and the specific inductive capacity of air is 1, can find out, affects soil dielectric constant mainly water percentage.Roth etc. propose and utilize the allocation of space ratio of soil, water and air three-phase material to calculate soil dielectric constant, and after Gardner etc. improves, measure soil water content for adopting dielectric method and provide further theoretical foundation, and utilize these principles to carry out the measurement of soil moisture content.
Optical measuring method (Optical), optical measuring method is a kind of contactless measurement soil moisture content method.The reflection of light, transmission, polarization are also relevant to soil moisture content.First obtain the specific inductive capacity of soil, thus derive soil moisture content further.Although optical measuring method has non-contacting advantage, owing to affecting by soil variation, error is large, and adaptability is strong, and the prospect of its research and development is also pessimistic.
CN202066826U discloses one " soil moisture content detector ", its by popping one's head in, reometer and copper bar form, one end of described probe and copper bar is all fixing forms lip pencil on insulator, and at the other end fixed current table of copper bar, probe is all connected with reometer with copper bar.During detection, directly the probe of this detector is inserted in soil, can directly test.CN202471017U discloses one " portable corner structure laser soil erosion monitor ", it comprises single-chip microcomputer, Bluetooth communication device, battery and laser range finder, also comprise bracing frame and measuring head, measuring head comprises supporting outer, sensor base plate and tilting mechanism, what supporting outer internal fixtion one output shaft vertically up stretched out horizontally rotates motor, this monitor arranging by electric rotating machine, can measure depth of erosion that is domatic in certain limit or curved surface.All there is same problem in above-mentioned two kinds of checkout equipments: the soil parameters in a certain region of detection, need to detect at each diverse location place in this region, then write down the parameters of each position, more each parameter is inputted in computer one by one carry out calculating, analyzing.Detection efficiency is lower, often in order to obtain the parameter the most accurately of this soil, need the soil parameters of test a lot of group diverse location, then average, and in the situation of soil texture inequality, artificial different acquisition point cannot reflect soil parameter all-sidedly and accurately, and usually will expend a lot of time and manpower when detecting.
CN 103048339 B discloses soil moisture detection method and apparatus; by inputting analog parameter to Dobson dielectric model; under generation comprises default frequency, the Dobson simulated database of the corresponding relation of simulated soil sand degree, simulated soil clay degree, simulated soil unit weight, simulated soil temperature, simulated soil volumetric(al) moisture content and simulated soil real part of permittivity; The coefficient list of the Hallikainen relational expression preset corresponding to frequency is set up according to Dobson simulated database; Gather the soil dielectric constant real part, soil sand degree and the soil clay degree that obtain soil to be measured; Search coefficient list, obtain each term coefficient corresponding with test frequency; According to found each term coefficient, the soil dielectric constant real part of soil to be measured, soil sand degree and soil clay degree, and Hallikainen relational expression, obtain the soil volumetric water content of soil to be measured.The method utilizes microwave remote sensing to monitor soil moisture, and the real part (imaginary part is then also relevant to soil salt content) of specific inductive capacity is very large by the impact of soil moisture content; Terseness and the practicality of its method are poor.
Said method all needs to carry out manual operation at the scene, consuming time comparatively of a specified duration, data acquisition difficulty; And the data of a single point can only be transmitted at every turn, data transmission exists can not the defect of real-time communication, and technical difficulty is large, and cost is higher, is unfavorable for reduction agriculture test research expenditure.
Summary of the invention
The object of the present invention is to provide a kind of soil limit moisture content automatic detection device, to solve the technological deficiency existed in prior art.A kind of soil limit moisture content of the present invention automatic detection device can right side depth measurement degree, and left side mass metering, bilateral carries out simultaneously, and once can survey multi-group data, simple and convenient, is easy to operation, with low cost, for research work provides many facilities.
In order to solve the defect that prior art exists, the invention provides a kind of soil limit moisture content automatic detection device, comprising travelling belt, cubic container, stirred vessel, electronic scales, floating device, taper appliance and heating cabinet; Described cubic container comprises cuboid container and square container, described cuboid container is fixed on described electronic scale, described electronic scales is located on described travelling belt, described floating device, described taper appliance and described heating cabinet are fixed on above described travelling belt from left to right respectively successively, and described stirred vessel is located at the outside of described travelling belt; Described heating cabinet is semiclosed; Measuring vessel is provided with in described cubic container; The lower cross section of described stirred vessel is less than the xsect of described measuring vessel.
Preferably, described square number of containers is 5, and described 5 square containers are integrated.
Be more preferably, after described square container, be provided with bar code.
Be more preferably, described cuboid container quantity is 5, and described 5 cuboid container are integrated.
Be more preferably, described measuring vessel is pallet.
Be more preferably, described tray number is identical with the quantity of described cubic container.
Be more preferably, described cuboid container is connected with described pallet by pole.
Be more preferably, described cuboid container is fixed on described electronic scale by thermal insulation board.
Be more preferably, described stirred vessel top is cylindrical, and bottom is square.
Be more preferably, the bottom of described heating cabinet flushes with the bottom of described cuboid container.
Be more preferably, described stirred vessel is built with solenoid valve.
Be more preferably, described soil limit moisture content automatic detection device lower right is provided with RS232 interface, and described RS232 interface is connected with described electronic scale.
Be more preferably, described taper appliance is 5.
Be more preferably, described floating device is floating baffle plate, and the centre of described floating baffle plate is provided with blade.
Be more preferably, on the right side of described floating baffle plate, be provided with the right baffle plate of one piece of same widths.
The course of work of a kind of soil limit moisture content of the present invention automatic detection device is:
First soil is added in stirred vessel, stirred vessel can control automatic watering, RS232 interface is provided with in the lower right of soil limit moisture content automatic detection device, recorded respectively before and after heating by electronic scale and be sent to host computer by RS232 interface after quality, carry out oven dry heating, when quality no longer changes by heating cabinet, namely after the moisture contained in soil all volatilizees, after heating, weigh quality, by of poor quality, the water percentage of soil can be calculated; Multiple qualitative data can distinguish Simultaneously test; Floating baffle plate is provided with blade, when square container is through floating baffle plate, soil higher than vessel port is cut by the blade being positioned at baffle center, the right baffle plate of one piece of same widths is provided with on the right side of floating baffle plate, swept off by blade the soil be accumulated in above baffle plate for sweeping off, be sent to host computer by RS232 interface after being sent to host computer by RS232 interface after recording depth of soil by the lifting of circular cone in taper appliance, multiple taper appliance can the degree of depth measurement simultaneously.During machine run, travelling belt left and right bilateral works simultaneously, and right side fathoms, left side measurement quality; The present invention can record multi-group data simultaneously, and is sent to host computer in real time.
Wherein, described RS232(RS, Recommended standard, RS represents proposed standard, and 232 is identification numbers) interface is one of communication interface on personal computer, the asynchronous transmission standard interface formulated by Electronic Industries Association.Usual RS-232 interface occurs with 9 pins (DB-9) or the kenel of 25 pins (DB-25).RS-232 interface meets the interface standard of the serial data communication that Electronic Industries alliance (Electronic Industry Association, EIA) formulates, and original number full name is that EIA-RS-232(is called for short 232, RS232).It is widely used in computer serial interface peripheral hardware and connects, stube cable and machinery, electrical specification, semiotic function and transport process.
The invention has the beneficial effects as follows:
A kind of soil limit moisture content of the present invention automatic detection device is architectural design department's requisite important step in design building thing exploration in early stage process; Travelling belt left and right bilateral in the present invention works simultaneously, right side depth measurement degree, left side mass metering; multi-group data can be gathered simultaneously; and be uploaded to host computer in real time, and there is automaticity high, simple and convenient; easy to operate; feature with low cost, this device has saved human resources, improves work efficiency; for research work is provided convenience, be beneficial to and take to remedy and safeguard measure to soil.The present invention is applicable to measure soil property plastic limit, the plasticity index calculating soil and liquidity index, cohesive soil can carry out the classification of soil and the important evidence as estimation bearing capacity of foundation slab etc. according to plasticity index; The present invention is suitable for industrial scale batch production.
Accompanying drawing explanation
Fig. 1 schematically illustrates the structural representation of a kind of soil limit moisture content of the present invention automatic detection device.
Reference numeral shown in Fig. 1 is as follows: 1-travelling belt, 2-square container, 3-stirred vessel, the floating baffle plate of 4-, 5-taper appliance, 6-heating cabinet, 7-solenoid valve, 8-measuring vessel, 9-blade, the right baffle plate of 10-, 11-bar code, 12-cuboid container, 13-pallet, 14-pole, 15-electronic scales.
Embodiment
The technological means realized for making the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with embodiment, setting forth the present invention further.
As shown in Figure 1, Fig. 1 schematically illustrates a kind of preferred embodiment of soil limit moisture content automatic detection device, comprising: travelling belt 1,5 square containers connected as one, 2,5 cuboid container connected as one 12, stirred vessel 3, floating baffle plate 4, taper appliance 5 and heating cabinet 6, described travelling belt 1 is provided with electronic scale 15, measuring vessel 8 is provided with in described square container 2, pallet 13 is provided with in described cuboid container 12, described cuboid container 12 is fixed on electronic scale 15 by thermal insulation board, and be connected with described pallet 13 by pole, described stirred vessel 3 top is cylindrical, bottom is square, the square xsect of described stirred vessel 3 bottom is slightly less than the xsect of measuring vessel 8, described floating baffle plate 4, described taper appliance 5 and described heating cabinet 6 are fixed on the top of described travelling belt 1 from left to right successively, described heating cabinet 6 is semiclosed, the bottom of described heating cabinet 6 flushes with bottom described cuboid container 12.
In more preferably embodiment, described taper appliance quantity is 5.
In more preferably embodiment, after described square container, be provided with bar code.
In more preferably embodiment, described stirred vessel is equipped with solenoid valve.
In more preferably embodiment, described soil limit moisture content automatic detection device lower right is provided with RS232 interface, and described RS232 interface is connected with described electronic scale.
In more preferably embodiment, described floating device is floating baffle plate, and the centre of described floating baffle plate is provided with blade.
In more preferably embodiment, on the right side of described floating baffle plate, be provided with the right baffle plate of one piece of same widths.
specific embodiment 1:
First soil is added to stirred vessel 3, soil after stirring in stirred vessel 3 fills it up with the pallet 13 on cubic container, cubic container comprises 5 square containers connected as one 2 and 5 cuboid container connected as one 12, centre position on described floating baffle plate 4 is provided with blade 9, when square container 2 is through floating baffle plate 4, soil higher than the vessel port of square container 2 is cut by the blade 9 be positioned in the middle of floating baffle plate 4, the right side of described floating baffle plate 4 is provided with the right baffle plate 10 of one piece of same widths, swept off by blade the soil be accumulated in above baffle plate 4 for sweeping off, when square container 2 arrives, bar code 11 is read in available barcode scanner scanning, the break-make of described taper appliance 5 is controlled again by on-off switch, when on-off switch disconnects, magnet dead electricity circular cone freely falling body, its degree of depth is recorded by grating, when on-off switch closes, magnet obtains electric, and circular cone is held again, after in square container 2, native depth measurement degree terminates, device returns initial position, again read bar code, data acquisition completes and is uploaded to host computer by RS232 interface, and 5 taper appliances can also can fathom simultaneously respectively, described cuboid container 12 enters after heating cabinet 6 arrives assigned address, heating cabinet 6 starts heating, heating cabinet 6 is heated to 110 degrees Celsius, and reading quality respectively again after the water of cuboid container 12 upper fray 13 li all volatilizees, is sent to host computer by RS232 interface, described RS232 interface is located at the lower right of described soil limit moisture content automatic detection device.
specific embodiment 2:
Described travelling belt 1 is 2 meters, cubic container comprises 6 square containers connected as one 2 and 6 cuboid container connected as one 12, cuboid container 12 is fixed to electronic scale 15 by thermal insulation board, electronic scale 15 can be weighed to cuboid container 12 and square container 2 respectively, electronic scale 15 is arranged in travelling belt 1, sticked bar-code after square container 2; Described stirred vessel 3 top is cylindrical, and bottom is square, and square xsect is slightly smaller than the xsect of measuring vessel 8, and described taper appliance is 6 rows arranged side by side, controls its rise and fall by power-on switch, records its degree of depth by circular cone lifting; Described heating cabinet 6 is not exclusively closed, flush bottom it with bottom cuboid container 12, electronic scales 15 is located at below heating cabinet 6, heating cabinet 6 is heated to 100 degrees Celsius, after the water in soil all volatilizees, (when namely quality no longer changes) reading quality again, is sent to host computer by RS232 interface.In the travelling belt generation of soil limit moisture content automatic detection device, send left and right bilateral to carry out simultaneously, and right side depth measurement degree, left side mass metering, can gather multi-group data simultaneously, and be uploaded to host computer in real time, automaticity is high.
specific embodiment 3:
First automatically add soil to stirred vessel 3, by automatic watering system automatic watering in stirred vessel, uploaded by RS232 interface and add soil amount and amount of water data, cubic container contains 4 square containers connected as one 2 and 4 cuboid container connected as one 12, after soil stirs in stirred vessel 3, fill it up with the measuring vessel 8 on square container and the pallet 13 in cuboid container 12, centre position on described floating baffle plate 4 is provided with blade 9, when square container 2 is through floating baffle plate 4, soil higher than the vessel port of square container 2 is cut by the blade 9 be positioned in the middle of floating baffle plate 4, the right side of described floating baffle plate 4 is provided with the right baffle plate 10 of one piece of same widths, swept off by blade the soil be accumulated in above baffle plate 4 for sweeping off, closed by the on-off switch controlling described taper appliance 5 and control circular cone lifting, when on-off switch disconnects, magnet dead electricity circular cone freely falling body, records its degree of depth by grating, when on-off switch closes, magnet obtains electric, circular cone is held again, and after in square container 2, native depth measurement degree terminates, device returns initial position, depth data is uploaded to host computer by RS232 interface, and 4 taper appliances can the degree of depth measurement simultaneously, described cuboid container 12 enters after heating cabinet 6 arrives assigned address, heating cabinet 6 starts heating, heating cabinet 6 is heated to 105 degrees Celsius, distinguishes reading quality again, be sent to host computer by RS232 interface after the moisture that the soil in container to be measured contains all volatilizees, described RS232 interface is located at the below of this device, left and right bilateral fathoms and quality simultaneously, and real-time uploading data.
As known by the technical knowledge, the present invention can be realized by other the embodiment not departing from its Spirit Essence or essential feature.Therefore, above-mentioned disclosed embodiment, with regard to each side, all just illustrates, is not only.Within the scope of the present invention all or all brightly to be comprised by this institute being equal to the change in scope of the present invention.
Claims (10)
1. a soil limit moisture content automatic detection device, is characterized in that, comprises travelling belt, cubic container, stirred vessel, electronic scales, floating device, taper appliance and heating cabinet; Described cubic container comprises cuboid container and square container, described cuboid container is fixed on described electronic scale, described electronic scales is located on described travelling belt, described floating device, described taper appliance and described heating cabinet are fixed on above described travelling belt from left to right respectively successively, and described stirred vessel is located at the outside of described travelling belt; Described heating cabinet is semiclosed; Measuring vessel is provided with in described cubic container; The lower cross section of described stirred vessel is less than the xsect of described measuring vessel; The bottom of described heating cabinet flushes with the bottom of described cuboid container.
2. soil limit moisture content automatic detection device according to claim 1, is characterized in that, the quantity of described square number of containers and described cuboid container is 5, and described 5 square containers and described 5 cuboid container are all integrated.
3. soil limit moisture content automatic detection device according to claim 1, is characterized in that, described floating device is floating baffle plate, and the centre of described floating baffle plate is provided with blade; The right baffle plate of one piece of same widths is provided with on the right side of described floating baffle plate.
4. soil limit moisture content automatic detection device according to claim 1, is characterized in that, described stirred vessel top is cylindrical, and bottom is square; Described stirred vessel is built with solenoid valve.
5. soil limit moisture content automatic detection device according to claim 1, is characterized in that, described soil limit moisture content automatic detection device lower right is provided with RS232 interface, and described RS232 interface is connected with described electronic scale.
6. soil limit moisture content automatic detection device according to claim 1, is characterized in that, described measuring vessel is pallet; Described tray number is identical with the quantity of described cubic container.
7. soil limit moisture content automatic detection device according to claim 6, it is characterized in that, described cuboid container is connected with described pallet by pole.
8., according to the arbitrary described soil limit moisture content automatic detection device of claim 1-7, it is characterized in that, after described square container, be provided with bar code; Described cuboid container is fixed on described electronic scale by thermal insulation board.
9., according to the arbitrary described soil limit moisture content automatic detection device of claim 1-7, it is characterized in that, described taper appliance is 5.
10. according to the arbitrary described soil limit moisture content automatic detection device of claim 1-7, it is characterized in that, the detection method of this device is: first add soil to stirred vessel, soil after stirring in stirred vessel fills it up with the pallet on cubic container, when square container is through floating baffle plate, soil higher than the vessel port of square container is cut by the blade be positioned in the middle of floating baffle plate, the right side of described floating baffle plate is provided with the right baffle plate of one piece of same widths, sweeps off and is accumulated in soil above baffle plate by blade; When square container arrives, bar code is read with barcode scanner scanning, disconnected by the on-off switch of taper appliance described in the solenoid control in stirred vessel again, magnet dead electricity circular cone freely falling body, its degree of depth is recorded by grating, solenoid control on-off switch closes, magnet obtains electric, circular cone is held again, after in square container, native depth measurement degree terminates, device returns initial position, again reads bar code, data acquisition completes and is uploaded to host computer by RS232 interface, and taper appliance fathoms at the same time or separately; After described cuboid container enters heating cabinet arrival assigned address, heating cabinet starts heating, and heating cabinet is heated to 110 degrees Celsius, distinguishes reading quality again, be sent to host computer by RS232 interface after the water in cuboid container upper fray all volatilizees.
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| CN106442210A (en) * | 2016-06-21 | 2017-02-22 | 江苏南水水务科技有限公司 | Gasometric-method soil water content detection device and method |
| CN108332833A (en) * | 2018-02-07 | 2018-07-27 | 钱立文 | A kind of film roll weight is read in and Transmission system |
| CN108663280A (en) * | 2017-03-27 | 2018-10-16 | 中冶长天国际工程有限责任公司 | A kind of bulk material moisture on-line detection device and its detection method |
| CN108709908A (en) * | 2018-06-11 | 2018-10-26 | 中国科学院地理科学与资源研究所 | Water salt one tacheometer and soil salt content detection method, device |
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| CN109612875A (en) * | 2019-02-25 | 2019-04-12 | 赵云红 | Phenols volatile organic compound detection device and its detection method in a kind of soil |
| CN109612875B (en) * | 2019-02-25 | 2021-08-24 | 广东万德检测技术股份有限公司 | Detection device and detection method for volatile organic compounds of phenols in soil |
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| CN112323820A (en) * | 2020-12-14 | 2021-02-05 | 深圳百勤建设工程有限公司 | Foundation pit support design method based on soil characteristics |
| CN112643881A (en) * | 2020-12-23 | 2021-04-13 | 中山艾尚智同信息科技有限公司 | Full-automatic water control system of concrete mixing plant |
| CN115032109A (en) * | 2022-01-28 | 2022-09-09 | 昆明理工大学 | Device and method for measuring water retention amount of roof greening soil |
| CN117451798A (en) * | 2023-12-22 | 2024-01-26 | 云南农业大学 | Method for evaluating limit water content of red clay based on dielectric method |
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