CN104931225A - Automatic continuous weighing type sand collector - Google Patents
Automatic continuous weighing type sand collector Download PDFInfo
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- CN104931225A CN104931225A CN201510352162.6A CN201510352162A CN104931225A CN 104931225 A CN104931225 A CN 104931225A CN 201510352162 A CN201510352162 A CN 201510352162A CN 104931225 A CN104931225 A CN 104931225A
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Abstract
The invention provides an automatic continuous weighing type sand collector. The structure of the automatic continuous weighing type sand collector comprises a bracket, a sand collecting unit, a data acquisition device and a power supply. The sand collecting unit comprises an enclosed case body, a wind pressure reducer, a cyclone separator, a sand collecting box and a weight sensor. During the sand collecting process, sand discharged from an outlet of the wind pressure reducer falls into the sand collecting box spontaneously, the sand in the sand collecting box is weighed by using the weight sensor, and the weighing data is transmitted to the data acquisition device. The automatic continuous weighing type sand collector provided by the invention is high in degree of automation and low in maintenance cost, can effectively simulate natural conditions, and is suitable for high-precision automatic monitoring of wind-sand activity in the wild.
Description
Technical field
The present invention relates to a kind of sand-taped instrument, specifically a kind of Automatic continuous Weighing type sand-taped instrument.
Background technology
The main cause of arid biogeographic zone and semiarid region land deterioration is soil drifting, and the main external agency of soil drifting is wind-sand activity, and the direct indicator of reflect soil wind erosion wind-sand activity intensity is husky flux.Wind-sand activity monitoring near the ground is the main contents of soil drifting ground monitoring, and it is mainly monitored stream, and monitoring result can be soil drifting detection and forecast provides basic data.At present, mainly three major types is divided into the detection technique of stream both at home and abroad: the first kind uses pressure transducer, sound transducer or optical sensor etc. to carry out indirect observation to stream intensity; Equations of The Second Kind uses mechanical type sand-taped instrument (as flat mouth sand-taped instrument, square-mouth sand-taped instrument, MWAC sand-taped instrument, cyclonic separation sand-taped instrument etc.) to carry out quantitatively directly observation to stream intensity; 3rd class uses mechanical sand-taped instrument collection husky, uses electronic device to weigh and record sand and dust weight.First kind automaticity is high, can Real-Time Monitoring stream relative intensity (as sand-dust particulates, saltation particle number and energy etc.), but can not obtain husky flux accurately from weight; Equations of The Second Kind can the husky flux of Accurate Determining, but needs the husky process of loaded down with trivial details artificial collection, therefore is difficult to carry out the Real-Time Monitoring of high time resolution and automatic record to husky flux; 3rd class can realize the real-time automatic monitoring to sand and dust data.
Although above-mentioned 3rd class can carry out real-time automatic monitoring to stream, but, it can not overcome " blast " containing energy stream, so-called " blast " is namely the hydrodynamic pressure that the wind in motion produces, " blast " can have an impact to weight sensor, especially in tempest period, " blast " that high energy stream produces can feed back to weight sensor, thus has a strong impact on the weighing precision of sand and dust; " blast " is on the impact of high precision weight sensor, make the weight data of sand and dust at short notice can be subject to the persistent disturbances of " blast ", thus be difficult to realize the real-time correct amount to intercepting and capturing sand and dust, therefore, above-mentioned 3rd class stream detection technique is difficult to the monitoring realizing high precision and high time resolution.
And the machinery of the husky instrument of above-mentioned three class sets collects husky equipment and do not have rainproof function, as run into burst wind and rain situation, the data be easy to having observed damage, and even damage the electronic equipment be attached thereto.In sum, along with dust storm studies the development to depth and meticulous direction, in the urgent need to a kind of robotization, precision is high, weighing is accurate and the husky equipment of weather-proof collection.
Summary of the invention
Object of the present invention is just to provide a kind of Automatic continuous Weighing type sand-taped instrument, and to solve existing sand-taped instrument measuring accuracy, temporal resolution is not high enough, and does not have the problem of rainproof function.
The present invention is achieved in that a kind of Automatic continuous Weighing type sand-taped instrument, comprises support, collects husky unit, data acquisition unit and power supply; Described support is vertically arranged, and the husky unit of described collection is arranged on the bracket, and the husky unit of described collection is used for carrying out collection and check weighing to the sand and dust in stream; Described data acquisition unit is connected with the husky unit of described collection by cable, and described data acquisition unit is by the weight data of sand and dust in described collection husky unit Real-time Collection stream; Described power supply is used for powering to described data acquisition unit and the husky unit of described collection;
The husky unit of described collection comprises:
Closed box, its sidewall is fixing on the bracket by connecting link;
Checking depressor, is positioned at described closed box, comprises housing and the upper decompression tongue piece that is crisscross arranged in described inner walls both sides and lower decompression tongue piece; Described upper decompression tongue piece is positioned at the top of described lower decompression tongue piece, described upper decompression tongue piece and described lower decompression tongue piece all have a stiff end and a free end, and the sensing of two decompression tongue piece free ends is contrary, two decompression tongue pieces are downward-sloping to its free end by its stiff end;
Cyclone separator, comprises cylindrical shell, is arranged on described cylindrical shell lateral wall near the sand inlet tube of upper-end part of driving and the net air escape pipe being arranged on described cylindrical shell upper end; The top of described cylindrical shell is vertical tube part, and the middle part of described cylindrical shell is tapered portion, and the bottom of described cylindrical shell is thin tube part, and the upper cover of described closed box is passed in the lower end of described thin tube part, and stretches in the housing of described checking depressor;
Sand collecting box, is arranged in described closed box, and is positioned at the below of the housing of described checking depressor, for collecting the sand and dust fallen by the housing of described checking depressor; And
Weight sensor, be fixedly installed on the bottom in described closed box, described sand collecting box is placed on described weight sensor, and detected data for detecting the weight of sand and dust in described sand collecting box, and are transferred to described data acquisition unit by cable by described weight sensor.
The husky unit of described collection also includes:
Shading rain cap, is arranged on the top of the net air escape pipe of described cyclone separator, for rain cover, avoids rainwater to be flowed in described cylindrical shell by described net air escape pipe.
The husky unit of described collection also includes:
Wind is wagged the tail the wing, is arranged on the lateral wall of the cylindrical shell of described cyclone separator near upper-end part of driving, and setting opposing with described sand inlet tube, swing with the wind for making described cyclone separator.
The angle of inclination of the described upper decompression tongue piece in described checking depressor and described lower decompression tongue piece is 45 ° ~ 60 °.
Described sand inlet tube in described cyclone separator is horizontally disposed with, and is provided with in its anterior port the section of having a down dip that an inclination angle is 10 ° ~ 15 °.
The sidewall of described closed box is provided with dodge gate.
Described power supply is solar cell or accumulator.
The husky unit of collection in the present invention is for the sand and dust collected in stream and carry out check weighing, collects husky unit and specifically comprises closed box, checking depressor, cyclone separator, sand collecting box and weight sensor.When collecting sand and dust, first stream enters from the opening end of the sand inlet tube of cyclone separator, by entering in the cylindrical shell of cyclone separator after sand inlet tube, air-flow and sand and dust are contained in stream, first the stream entered in cylindrical shell realizes the initial gross separation of air-flow and sand and dust, namely most of air-flow is discharged from the net air escape pipe of cylindrical shell upper end, the air-flow (or claim remaining containing can stream) that sand and dust carry fraction enters in checking depressor from the bottom of cylindrical shell, containing passing through reduce pressure tongue piece and lower decompression tongue piece successively by stream in checking depressor, upper decompression tongue piece and lower decompression tongue piece can fully stop containing fraction air-flow entrained in energy stream, thus eliminate remaining blast, the sand and dust being exported out by checking depressor fall in sand collecting box under gravity naturally, realize the collection to sand and dust, by weight sensor, the sand and dust in sand collecting box are carried out to the detection of weight again.
Before falling into sand collecting box at sand and dust, first through cyclone separator, initial gross separation has been carried out to the air-flow in stream and sand and dust, after eliminate blast remaining in sand and dust through checking depressor again, therefore the sand and dust of sand collecting box are fallen into hardly with air-flow, namely overcome " blast " problem, solve in prior art because " blast " causes on the impact of high precision weight sensor the problem that measuring accuracy is not high.
The present invention, by arranging shading rain cap above the net air escape pipe of cyclone separator, can, under the situation of burst wind and rain, stop rainwater from top to bottom to enter in the cylindrical shell of cyclone separator by net air escape pipe; And, sand inlet tube is connected with cylindrical shell by the section of having a down dip, the section of having a down dip tilts downwards to sand inlet tube direction slightly from cylindrical shell, like this, under burst wind and rain situation, even if side rainwater enters sand inlet tube with stream, rainwater also can naturally flow out under gravity in the section of having a down dip, because the degree of tilt of the section of having a down dip is little, therefore again can not the circulation of catch blowing sand stream.
Automatic continuous Weighing type sand-taped instrument provided by the present invention, collection and the record of data complete automatically by instrument, do not need experimenter to gather husky flux data, greatly save data acquisition time and labour cost in one or many dust storm event procedure.And the Automatic continuous Weighing type sand-taped instrument in the present invention also can realize collection and the record of the high time resolution of husky flux data, substantially increases the precision to wind-driven sediment process observation.
Automatic continuous Weighing type sand-taped instrument provided by the present invention, automaticity is high, and maintenance cost is low, to natural situation possesses good fitting, is applicable to the high-precision wind-sand activity in field and automatically monitors.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation collecting husky unit in the present invention.
Fig. 3 is the vertical view of cyclone separator in the present invention.
Embodiment
As shown in Figure 1, the present invention includes support 2, collect husky unit 1, data acquisition unit 4 and power supply.
Support 2 is vertical tubular structure, and plug in pricker can be installed in the lower end of support 2, so that fixed on the ground by support 2.Plug in pricker and support 2 are detachable structure.Collecting husky unit 1 to be fixed on support 2 by connecting link 25, collecting husky unit 1 for carrying out collection to the sand and dust in stream and check weighing; The husky unit 1 of collection of some differing heights can be installed according to actual needs when embody rule on support 2.The husky unit 1 of each collection is all connected with data acquisition unit 4 by cable 3, and cable 3 can stretch into support 2 from the top of support 2 inner, then connects with data acquisition unit 4 after being stretched out by the bottom of support 2.For avoiding cable 3 by rain erosion, cover plate can be set at support 2 top.
Data acquisition unit 4 by the husky unit 1 of collection can in Real-time Collection stream sand and dust weight data and gathered data are stored, the data stored import in computing machine by USB connecting line (or claiming data line), preserve and data analysis to realize carrying out warehouse-in to data.Certainly, the data that also data acquisition unit 4 can be stored by GPRS antenna to remote computer, improve the automatization level of instrument by wireless network transmissions further.
Power supply and data acquisition unit 4 and each collect husky unit 1 and are connected, and power for giving the husky unit 1 of collection and data acquisition unit 4.Power supply can be solar cell, also can be accumulator, or both actings in conjunction.Illustrate in Fig. 1 that solar panel 5 collects husky unit 1 by cable 3 with data acquisition unit 4 and each and connects.
As shown in Figure 2, collect husky unit and comprise closed box 20, checking depressor, cyclone separator, sand collecting box 15 and weight sensor 16.
Closed box 20 is cuboid box body structure, and its inside is hollow structure.Closed box 20 is equivalent to the base collecting husky unit, and its sidewall is fixed on support by connecting link.Weight sensor 16 is placed in the bottom in closed box 20, and in the present invention, weight sensor 16 is high-precision weight sensor, and its measuring accuracy is 0.01 gram.Sand collecting box 15 is arranged on weight sensor 16, specifically, weight sensor 16 is fixedly installed holder 17, the surrounding of holder 17 arranges the card edge of epirelief, sand collecting box 15 is placed on holder 17, realizes the position-limiting action to sand collecting box 15 by the card edge at holder 17 edge.
Cyclone separator comprises cylindrical shell 8, sand inlet tube 21 and net air escape pipe 23.Cylindrical shell 8 is divided into again three, upper, middle and lower part; Its top is vertical tube part 8-1, and middle part is tapered portion 8-2, and bottom is thin tube part 8-3.In the present embodiment, vertical tube part 8-1 is the cylindrical structure of hollow, and tapered portion 8-2 is the Rotary-table structure of hollow, the heavy in section end of Rotary-table and the bottom connection of vertical tube part 8-1, and the small bore end of Rotary-table connects with the top of thin tube part 8-3; Thin tube part 8-3 is round tubular body.Tapered portion 8-2 and thin tube part 8-3 couples together the structure of formation one similar " funnel-form ".The lower end of thin tube part 8-3 is stretched in closed box 20 through the upper cover of closed box 20.
Net air escape pipe 23 is arranged on the upper end of vertical tube part 8-1, net air escape pipe 23 is the circular tube structure of both ends open, its one end connects with the top of vertical tube part 8-1, its other end is gas outlet, the position connected with net air escape pipe 23 in the upper end of vertical tube part 8-1 is provided with through hole, and then makes the intracavity inter-connection of the inner chamber of vertical tube part 8-1 (or claiming the inner chamber of cylindrical shell 8) and net air escape pipe 23.
On the sidewall of upper end, the section of having a down dip 22 is provided with at vertical tube part 8-1, the section of having a down dip 22 is tubular structure, front port (the left side port of the section of having a down dip 22, namely the port after downward-sloping) connect sand inlet tube 21, sand inlet tube 21 is horizontal tubular structure, the section of having a down dip 22 is connected with sand inlet tube 21, and with cylindrical shell 8 intracavity inter-connection.
Stream enters in sand inlet tube 21 by the sand inlet (i.e. left side mouth in figure) of sand inlet tube 21 front end under the action of the forces of the wind, and enter in vertical tube part 8-1 by the section of having a down dip 22, then under gravity through tapered portion 8-2, then through thin tube part 8-3, finally cylindrical shell 8 is discharged by the bottom of thin tube part 8-3.Because stream contains air-flow and sand and dust, when stream from top to bottom moves in cylindrical shell 8, major part air-flow can discharge cylindrical shell 8 outside by the net air escape pipe 23 of vertical tube part 8-1 upper end, fraction air-flow can move downward along with sand and dust in addition, the sand and dust that carry fraction air-flow also claim after being separated include remaining air-flow containing can stream.Therefore, stream, after cyclone separator, namely achieves the initial gross separation of air-flow and sand and dust.
See Fig. 2 and Fig. 3, the present invention is in order to overcome burst wind and rain to the destruction of the husky unit of collection, spy is provided with shading rain cap 6 at the top of cylindrical shell 8, specifically, three shading rain cap supports 24 are fixedly installed in the upper end (namely in the upper end of vertical tube part 8-1) of cylindrical shell 8, net air escape pipe 23 is surrounded by the triangle (being equilateral triangle in the present embodiment) that three shading rain cap supports 24 surround, shading rain cap 6 is umbrella-shaped structure, shading rain cap 6 is fixedly installed on the top of shading rain cap support 24, and the edge of shading rain cap 6 stretches out shading rain cap support 24.The height of shading rain cap support 24 higher than the height of net air escape pipe 23, thus makes to have certain distance between the gas outlet of shading rain cap 6 and net air escape pipe 23.On the one hand, the setting of shading rain cap 6 can not affect the pure air-flow of being discharged by the gas outlet of net air escape pipe 23, on the other hand, shading rain cap 6 also can effective rain cover, avoid rainwater to enter cylindrical shell 8 by the gas outlet of net air escape pipe 23 from top to bottom inner, effectively block the damage of rainwater to Monitoring Data and instrument etc.
In burst wind and rain situation, rainwater also can laterally enter in sand inlet tube 21 under the action of the forces of the wind, but, owing to being provided with the section of having a down dip 22 between sand inlet tube 21 and cylindrical shell 8, the section of having a down dip 22 is tilted downwards slightly by horizontality, and angle of inclination (namely the angle of the section of having a down dip and sand inlet tube) is 10 ° ~ 15 °, because the section of having a down dip 22 is downward-sloping to sand inlet tube 21 direction from cylindrical shell 8, therefore, even if rainwater enters in sand inlet tube 21, also can not be flowed in cylindrical shell 8 by the section of having a down dip 22.The angle of inclination of the section of having a down dip 22 is less, and when can prevent from the one hand happening suddenly rainfall, rainwater flows in cylindrical shell from side direction, does not affect again on the other hand and descends entering of stream without rain state.
In order to improve the efficiency gathering sand and dust, the present invention is also provided with wind at the sidewall of cylindrical shell 8 and wags the tail the wing 7, specifically, arrange wind at the lateral wall of vertical tube part 8-1 near upper-end part of driving to wag the tail the wing 7, wind is wagged the tail the wing 7 and the opposing setting of sand inlet tube, the wind wing 7 of wagging the tail can stretch under the action of the forces of the wind, and can swing with the wind, the wag the tail swing of the wing 7 of wind can drive cylindrical shell 8 to rotate, because wind is wagged the tail the wing 7 and the opposing setting of sand inlet tube, therefore the stream that wind-force drives just in time enters cylindrical shell 8 inside by the sand inlet of sand inlet tube, thus improves the husky efficiency of collection.
Can swing with the wind to make cylindrical shell 8, the present invention arranges the first hollow bearing 10 at the upper cover center position of closed box 20, the lower end of the thin tube part 8-3 of cylindrical shell 8 is stretched in closed box 20 through the center of the first hollow bearing 10, and is stretched in checking depressor by the second hollow bearing 11 in closed box 20.The lower end of thin tube part 8-3 can be rotated relative to the first hollow bearing 10 and the second hollow bearing 11, and then cylindrical shell 8 can be made to swing with the wind.
Checking depressor is positioned at the inside of closed box 20.Checking depressor comprises housing 12 and the upper decompression tongue piece 18 that is crisscross arranged in housing 12 inwall both sides and lower decompression tongue piece 19.The lateral wall of housing 12 is affixed with the inwall of closed box 20 by web joint 13.Upper decompression tongue piece 18 and lower decompression tongue piece 19 are thin plate-shaped structure, and upper decompression tongue piece 18 is positioned at the top of lower decompression tongue piece 19.One end of upper decompression tongue piece 18 is fixed on the inwall of housing 12, and the lower port of close thin tube part 8-3, the other end of upper decompression tongue piece 18 is free end, and upper decompression tongue piece 18 is downward-sloping to its free end direction by its stiff end, and angle of inclination is between 45 ° ~ 60 °.One end of lower decompression tongue piece 19 is fixed on the inwall of housing 12, and the free end of close upper decompression tongue piece 18, the other end of lower decompression tongue piece 19 is free end, and lower decompression tongue piece 19 is downward-sloping to its free end direction by its stiff end, and angle of inclination is between 45 ° ~ 60 °.The stiff end of upper decompression tongue piece 18 and lower decompression tongue piece 19 is oppositely arranged on the inwall both sides of housing 12, thus it is contrary that the free end of decompression tongue piece 18 and lower decompression tongue piece 19 is pointed to.
The free end of upper decompression tongue piece 18 and lower decompression tongue piece 19 all has certain distance apart from the inwall of housing 12, and the free end of upper decompression tongue piece 18 is positioned at the oblique upper of the stiff end of lower decompression tongue piece 19, and the stiff end of close lower decompression tongue piece 19.The entering after in checking depressor containing energy stream containing remaining air-flow fallen by the lower end of the thin tube part 8-3 of cylindrical shell 8, first fall on decompression tongue piece 18, to glide and free end through upper decompression tongue piece 18 is fallen on lower decompression tongue piece 19 along upper decompression tongue piece 18, then to glide and free end through lower decompression tongue piece 19 falls along lower decompression tongue piece 19.Containing energy stream successively after upper decompression tongue piece 18 and lower decompression tongue piece 19, air-flow remaining in it can be stopped by two decompression tongue pieces, thus remaining blast can be overcome, avoid and follow-uply the inaccurate problem of measurement result is caused on the impact of weight sensor because of remaining blast.Design at 45 ° ~ 60 °, angle of inclination of upper decompression tongue piece 18 and lower decompression tongue piece 19, both can effectively stop remaining blast, can not hinder again the free landing of sand and dust.
The bottom of housing 12 can be designed to funnel-shaped structure, by the free end of lower decompression tongue piece 19 fall eliminate remaining air-flow after the funnel-shaped structure of sand and dust through housing 12 bottom naturally fall.Stream can realize fully being separated of sand and dust and air-flow after checking depressor.
Sand collecting box 15 is uncovered bucket body structure, and sand collecting box 15 is positioned at immediately below housing 12, and the sand and dust fallen by the funnel-shaped structure of housing 12 bottom just can be deposited in sand collecting box 15, realize the collection to sand and dust.Weight sensor 16 below sand collecting box 15 can the weight of sand and dust in detected set sandbox 15 in real time, and detected data can be transferred to data acquisition unit 4 by cable 3.The frequency (or claiming acquisition time resolution) of data acquisition unit 4 image data can be arranged as required voluntarily, and generally, the maximum data frequency acquisition of data acquisition unit 4 can be set to one minute.For the situation being provided with the husky unit of multiple collection, data acquisition unit 4 can gather the data detected by multiple weight sensor, and can arrange different data acquiring frequency as required.
The present invention can also establish dodge gate 14 on the sidewall of closed box 20, the sand collecting box 15 being positioned at closed box 20 can be taken out by dodge gate 14, so that the sand collecting box 15 of the full sand and dust of cleaning collection, is put back in closed box 20 by sand collecting box 15 after cleaning out again.
The present invention can also arrange air velocity transducer, wind transducer, temperature sensor and humidity sensor etc. on support 2, and these sensors are all connected with data acquisition unit 4 by cable, the parameters such as wind speed, wind direction, temperature and humidity can be detected in real time by these sensors.
Claims (7)
1. an Automatic continuous Weighing type sand-taped instrument, is characterized in that, comprises support, collects husky unit, data acquisition unit and power supply; Described support is vertically arranged, and the husky unit of described collection is arranged on the bracket, and the husky unit of described collection is used for carrying out collection and check weighing to the sand and dust in stream; Described data acquisition unit is connected with the husky unit of described collection by cable, and described data acquisition unit is by the weight data of sand and dust in described collection husky unit Real-time Collection stream; Described power supply is used for powering to described data acquisition unit and the husky unit of described collection;
The husky unit of described collection comprises:
Closed box, its sidewall is fixing on the bracket by connecting link;
Checking depressor, is positioned at described closed box, comprises housing and the upper decompression tongue piece that is crisscross arranged in described inner walls both sides and lower decompression tongue piece; Described upper decompression tongue piece is positioned at the top of described lower decompression tongue piece, described upper decompression tongue piece and described lower decompression tongue piece all have a stiff end and a free end, and the sensing of two decompression tongue piece free ends is contrary, two decompression tongue pieces are downward-sloping to its free end by its stiff end;
Cyclone separator, comprises cylindrical shell, is arranged on described cylindrical shell lateral wall near the sand inlet tube of upper-end part of driving and the net air escape pipe being arranged on described cylindrical shell upper end; The top of described cylindrical shell is vertical tube part, and the middle part of described cylindrical shell is tapered portion, and the bottom of described cylindrical shell is thin tube part, and the upper cover of described closed box is passed in the lower end of described thin tube part, and stretches in the housing of described checking depressor;
Sand collecting box, is arranged in described closed box, and is positioned at the below of the housing of described checking depressor, for collecting the sand and dust fallen by the housing of described checking depressor; And
Weight sensor, be fixedly installed on the bottom in described closed box, described sand collecting box is placed on described weight sensor, and detected data for detecting the weight of sand and dust in described sand collecting box, and are transferred to described data acquisition unit by cable by described weight sensor.
2. Automatic continuous Weighing type sand-taped instrument according to claim 1, is characterized in that, the husky unit of described collection also includes:
Shading rain cap, is arranged on the top of the net air escape pipe of described cyclone separator, for rain cover, avoids rainwater to be flowed in described cylindrical shell by described net air escape pipe.
3. Automatic continuous Weighing type sand-taped instrument according to claim 1, is characterized in that, the husky unit of described collection also includes:
Wind is wagged the tail the wing, is arranged on the lateral wall of the cylindrical shell of described cyclone separator near upper-end part of driving, and setting opposing with described sand inlet tube, swing with the wind for making described cyclone separator.
4. the Automatic continuous Weighing type sand-taped instrument according to claim 1,2 or 3, is characterized in that, the angle of inclination of the described upper decompression tongue piece in described checking depressor and described lower decompression tongue piece is 45 ° ~ 60 °.
5. the Automatic continuous Weighing type sand-taped instrument according to claim 1,2 or 3, is characterized in that, the described sand inlet tube in described cyclone separator is horizontally disposed with, and is provided with in its anterior port the section of having a down dip that an inclination angle is 10 ° ~ 15 °.
6. the Automatic continuous Weighing type sand-taped instrument according to claim 1,2 or 3, is characterized in that, the sidewall of described closed box is provided with dodge gate.
7. the Automatic continuous Weighing type sand-taped instrument according to claim 1,2 or 3, is characterized in that, described power supply is solar cell or accumulator.
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| CN201510352162.6A CN104931225B (en) | 2015-06-24 | 2015-06-24 | A kind of Automatic continuous Weighing type sand-taped instrument |
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| CN106017849A (en) * | 2016-07-01 | 2016-10-12 | 水利部牧区水利科学研究所 | Rotatable sand collector for measuring sand-driven flow and sand-transporting flux on ice surface |
| CN106768821A (en) * | 2017-01-22 | 2017-05-31 | 北京师范大学 | The measuring method of soil drifting amount in a kind of plot |
| CN107421784A (en) * | 2017-09-05 | 2017-12-01 | 兰州交通大学 | A kind of automatic dust storm collection system monitored in real time |
| CN107870104A (en) * | 2017-11-07 | 2018-04-03 | 国网新疆电力公司电力科学研究院 | A kind of device of the dust storm of collection in real time |
| CN108562221A (en) * | 2018-04-20 | 2018-09-21 | 石家庄铁道大学 | The husky shovel testing stand of collection |
| CN109187108A (en) * | 2018-09-25 | 2019-01-11 | 泰山学院 | A kind of automatic sand-taped instrument of multistage reduction of speed formula and working method |
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