CN104019804A - High sandiness muddy water density flow detection system - Google Patents
High sandiness muddy water density flow detection system Download PDFInfo
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- CN104019804A CN104019804A CN201410261768.4A CN201410261768A CN104019804A CN 104019804 A CN104019804 A CN 104019804A CN 201410261768 A CN201410261768 A CN 201410261768A CN 104019804 A CN104019804 A CN 104019804A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C13/00—Surveying specially adapted to open water, e.g. sea, lake, river or canal
Abstract
The invention relates to a high sandiness muddy water density flow detection system which comprises a signal detection system, a data transmission system, a control system and a control panel, wherein the signal detection system comprises a measuring support rod, a flowing speed detection module, an ultrasonic sandiness monitoring module, a depth sensor and a water temperature sensor; the measuring support rod is fixed on a rotating disc through a cable; the rotating disc is in rotation connection with one end of a bracket transverse rod, and the other end of the bracket transverse rod is connected with a motor; the motor is mounted on the support rack; the control system comprises a data processing module and a singlechip control module which are respectively connected with a power supply module. The system adopts a data fusion technique, comprehensively takes environment influence factors such as the water temperature, the measuring point depth and the flowing speed into account, is high in comprehensiveness, guarantees a reliable and stable detection result and accurate data, is capable of achieving on-line automatic detection on density flow and capable of visibly monitoring and managing the whole detection process through the control panel in real time, and has very great social values and market popularization values.
Description
Technical field
The present invention relates to the high husky muddy water detection field that contains, be specifically related to a kind of high containing husky Turbid Density Flow detection system.
Background technology
China is a country that flood is serious, and building reservoir is the important engineering measure that the mankind reduce flood.But particularly on heavily silt-carrying river, build reservoir in river, due to the dash effect of dam, flow rate of water flow reduces, and the alluvial speed of Lai Sha reservoir area, upstream increases, and causes effective storage capacity to reduce, the reservoir lost of life.The flood of holding a large amount of fine deposits in reservoir under the arm enters reservoir and chokes water behind district, thick silt in muddy water can not continue as current and carry under one's arms, alluvial is at the import position of reservoir, the height that contains fine sediment is containing husky muddy water, with storehouse in clear water form certain density difference, produce thus the difference of pressure, start to slip into reservoir bottom, form reservoir area high containing husky Turbid Density Flow.Slip into dot mark density current started form.In some cases, density current can bring very large harm.If but rationally utilize density current characteristic, and subtracting silt at reservoir, the aspects such as Water and Waste Water Engineering design and utilization can obtain very large benefit.Build water conservation reservoir and power station in high silt-laden river time, bottom outlet is set, the height that is rationally used in bottom of the reservior motion can be drained silt containing husky Turbid Density Flow, reduces reservoir sedimentation, is the major measure that reservoir subtracts silt.
Density current be fluid that two kinds of density is different because of density variation produce relatively mobile, claim again density flow.Density current phenomenon common in hydraulic engineering has: the Turbid Density Flow in lake, reservoir and river, channel; The salt wedge density current of river mouth section; Near Thermal Density Current thermal power plant's outfall and infall etc.
In the management of actual reservoir drainage sand discharge, the best opportunity of " hold arrange clearly muddy " in order to grasp, effectively reduce the Sediment Siltation of reservoir, the overall process need to occur density current, increasing, stablize, disappear is carried out tracking and monitoring.In density current surveying work, mainly by estimating the sampling depth of water, repeatedly soundd out sampling, artificial judgment muddy water layer depth and thickness in the past.The method measuring accuracy is low, and labour intensity is large, and Measuring Time is long, easily incurs loss through delay the best opportunity of " hold arrange clearly muddy ".The clear muddy water interface locator of photo-electric that the resistance luminous effect of current with good grounds photoelectric sensor principle and sand grain is taked, in Xiaolangdi Dam Project density current is measured, has obtained good effect.But because photoelectric sensor measurement silt content range is little, this equipment can only be measured muddy water silt content critical value clearly, can not continuous coverage high sediment concentration and vertical distribution situation thereof.Therefore,, for tracking and monitoring density current change procedure better, be necessary to realize the real-time follow-up monitoring of density current, for the draining sand discharge of reservoir area, the Huanghe valley plays supervision and management service.
Summary of the invention
The object of the invention is for problems of the prior art and deficiency, provide a kind of height simple in structure, reasonable in design, flexible for installation, that can realize on-line real time monitoring to contain husky Turbid Density Flow detection system.
The present invention is achieved through the following technical solutions: a kind of high containing husky Turbid Density Flow detection system, comprise signal detection system, data transmission system, control system, control panel, each systematic order is connected, signal detection system comprises to be measured support bar and is arranged on successively from the bottom to top the flow rate detection module of measuring on support bar, ultrasound wave silt content monitoring modular, depth transducer, cooling-water temperature sensor, the top of described measurement support bar is fixed on rotating disk by cable, one end of rotating disk and rack cross-bar is rotationally connected, the other end of rack cross-bar is connected with motor, described motor is arranged on bracing frame, described control system comprises power module, and the data processing module and the single chip control module that are connected with power module respectively.
Contain husky Turbid Density Flow detection system according to above-mentioned height, data processing module comprises signal condition module, A/D modular converter, described signal condition module is connected with signal detection system, gather the signal of flow velocity detection module, ultrasound wave silt content detection module, depth transducer, cooling-water temperature sensor transmission, signal condition module is connected with A/D modular converter, and described A/D modular converter is connected with single chip control module.
Contain husky Turbid Density Flow detection system according to above-mentioned height, described signal detection system also comprises the multi-channel signal processing system of measuring on support bar that is fixed on, flow rate detection module, ultrasound wave silt content detection module, depth transducer, cooling-water temperature sensor is connected with signal condition module by multi-channel signal processing system respectively.
According to above-mentioned height, containing husky Turbid Density Flow detection system, described ultrasound wave silt content detection module comprises symmetry and is fixedly mounted on the four wave beam ultrasonic sensors of measuring on support bar.
According to above-mentioned height, containing husky Turbid Density Flow detection system, described depth transducer is the middle spindle structure with airway and cable.
Preferably, described depth transducer comprises malleation chamber, negative pressure cavity, top end socket, pressure sensitive diaphragm, outer chamber wall and is arranged on the back purge system in outer chamber wall.
Contain husky Turbid Density Flow detection system according to above-mentioned height, described flow rate detection module comprises current meter, is arranged on the impeller with flabellum of current meter front end, the scrambler being fixedly connected with current meter rear end, place the waterproof sealing storehouse of scrambler, and the water conservancy diversion empennage being connected with waterproof sealing storehouse; Described scrambler is flexibly connected with impeller by the tape spool of waterproof.
According to above-mentioned height, containing husky Turbid Density Flow detection system, described single chip control module is connected with host computer by GPRS network.
Contain husky Turbid Density Flow detection system according to above-mentioned height, described control panel is touch screen control panel, comprise data disaply moudle, alarm module and touch screen control module, described touch screen control module control motor drags and is integrated in the sensor of measuring on support bar, realizes the density current Data Detection at reservoir area different depth.
The present invention has the following advantages:
1. the present invention is by flow rate detection module, ultrasound wave silt content detection module, depth transducer, cooling-water temperature sensor integrates, realize the flow velocity of different depth on same vertical line, silt content, when the measuring point degree of depth and water temperature, measure, detection efficiency is high, data are accurate, and ultrasound wave silt content detection module comprises symmetry and is fixedly mounted on the four wave beam ultrasonic sensors of measuring on support bar, design symmetry, form pincerlike structure, be positioned over tested containing in husky water body, obtain data matrix, by analyzing the accurate concentration of the silt content that can obtain suspending in water body, and can effectively eliminate interference, prevent from being wound around because of foreign material such as pasture and water the inoperable impact of instrument bringing, in compared with rugged environment, also can work, if one of them is wound or stops, other several can also normally work, and the back purge system in depth transducer outer chamber wall can regularly clean, ensure the carrying out of normal work.
2. the depth transducer in the present invention adopts the structure of malleation chamber and negative pressure cavity, delicate structure, the housing of outer chamber wall adopts through the elastomeric material of vulcanizing treatment and makes, adopt extraordinary fluorine glue cable to be electrically connected, height for strong erosion contains husky liquid, has both ensured water-stop, the corrosion resistance of sensor, makes again reference pressure chamber and environmental pressure communicate, the high precision and the high stability that ensure measurement data, adjustment is simple, flexible for installation.
3. the present invention is simple in structure, reasonable in design, adopt Data fusion technique, the environmental impact factors such as water temperature, the measuring point degree of depth, flow velocity are considered, comprehensive strong, testing result is more reliable, stable, and data are more accurate, and can realize online automatic detection density current, can monitor and manage more intuitively, in real time whole testing process by control panel, there is very high social value and market popularization value.
Brief description of the drawings
Fig. 1 is the high structural representation containing husky Turbid Density Flow detection system of the present invention;
Fig. 2 is the high theory diagram containing husky Turbid Density Flow detection system of the present invention;
Fig. 3 is the structural representation of depth transducer of the present invention;
Fig. 4 is ultrasound wave silt content detection module circuit diagram of the present invention;
Fig. 5 is single-chip computer control system circuit diagram of the present invention;
Fig. 6 is power module circuitry figure of the present invention;
Fig. 7 is signal condition module circuit diagram of the present invention;
Fig. 8 is A/D modular converter circuit diagram of the present invention.
Embodiment
In figure, label 1 is impeller, and 2 is waterproof sealing storehouse, 3 is water conservancy diversion empennage, and 4 is depth transducer, and 41 is airway, 42 is negative pressure cavity, and 43 is outer chamber wall, and 44 is malleation chamber, 45 is cable, and 46 is top end socket, and 47 is pressure sensitive diaphragm, 5 is ultrasound wave silt content detection module, and 6 is cooling-water temperature sensor, and 7 for measuring support bar, 8 is multi-channel signal processing system, 9 is surface level, and label 10 represents rotating disk, and 11 is rack cross-bar, 12 is GPRS antenna, 13 is control system, and 14 is bracing frame, and 15 is motor, 16 is host computer, and 17 is test ship.
Embodiment mono-: shown in Fig. 1～8, a kind of high containing husky Turbid Density Flow detection system, comprise signal detection system, data transmission system, control system, control panel, each systematic order is connected, signal detection system comprises to be measured support bar and is arranged on successively from the bottom to top the flow rate detection module of measuring on support bar, ultrasound wave silt content monitoring modular, depth transducer, cooling-water temperature sensor, the top of described measurement support bar is fixed on rotating disk by cable, one end of rotating disk and rack cross-bar is rotationally connected, the other end of rack cross-bar is connected with motor, described motor is arranged on bracing frame, described control system comprises power module, and the data processing module and the single chip control module that are connected with power module respectively.Data processing module comprises signal condition module, A/D modular converter, described signal condition module is connected with signal detection system, gather the signal of flow velocity detection module, ultrasound wave silt content detection module, depth transducer, cooling-water temperature sensor transmission, signal condition module is connected with A/D modular converter, and described A/D modular converter is connected with single chip control module.Described signal detection system also comprises the multi-channel signal processing system of measuring on support bar that is fixed on, flow rate detection module, ultrasound wave silt content detection module, depth transducer, cooling-water temperature sensor is connected with signal condition module by multi-channel signal processing system respectively.The signal collecting is first input to signal condition module and amplifies processing, then be connected with single chip control module through A/D modular converter, single-chip microcomputer sends to remote center by GPRS Anneta module by data after processing again, simultaneously at liquid crystal display screen display corresponding data.Described ultrasound wave silt content detection module comprises symmetry and is fixedly mounted on the four wave beam ultrasonic sensors of measuring on support bar.The external 1000V high-voltage power supply of transmitting terminal of ultrasonic sensor circuit, circuit is made up of C8, R4, Q1, P4, and wherein Q1 is controllable silicon, and P4 is ultrasonic transmitter, P2.7 mouth control Q1 by single-chip microcomputer opens radiating circuit, thereby makes emitting head transmitting ultrasound wave; Transmitting terminal circuit is made up of P5, R5, R6, R7, C9, C10, U1A, and P5 is ultrasonic receiver, the signal receiving is input to after U1A amplifies to the IN1 passage processing of A/D modular converter.The transmitter of four wave beam ultrasonic sensors starts, and the flow velocity V of ultrasound examination silt content information and environment temperature T and silt-including water is carried out to multisensor data fusion processing, obtains silt content information.
Described height is containing husky Turbid Density Flow detection system, and its high mathematical model detecting containing husky Turbid Density Flow is: by the degree of depth h of the current time t obtaining
tsilt content S (h
t) and the degree of depth h of a upper moment t-1
t-1silt content S (h
t-1) carry out difference computing, comprehensively judge whether height produces containing husky Turbid Density Flow.Its mathematical model is:
?
U is difference, S (h
t) be the degree of depth h of current time t
tsilt content; S (h
t-1) be the degree of depth h of a upper moment t-1
t-1silt content; S
tthe silt content concentration of the suspended particles during for current time t; S
t-1the silt content concentration of the suspended particles during for moment t-1; T
tenvironment temperature during for current time t, T
t-1environment temperature during for moment t-1; V
tthe flow velocity of the suspension water body during for current time t; V
t-1the flow velocity of the suspension water body during for moment t-1; H
twater depth during for current time t, H
t-1water depth during for moment t-1; K
0for the parameter of the silt content concentration of suspended particles, can in experiment, carry out calibration; K
1for temperature compensation parameter, design temperature compensating parameter K value 0.607; K
2for the fusion parameters of flow velocity, can in experiment, carry out calibration; K
3for the fusion parameters of the degree of depth, also in experiment, carry out calibration.Judge whether difference U is greater than the threshold value U that density current produces
0if difference U is less than U
0, be judged as density current and do not produce, control motor rotation, drive measurement support bar vertically to decline, enter step a); If difference U is more than or equal to U0, be judged as density current and produce, record the degree of depth, silt content, flow velocity and temperature data information that density current produces, enter in step c) and transfer to Monitor Computer Control System by wireless GPRS; Monitor Computer Control System obtains the data message of the degree of depth, silt content, flow velocity and the temperature of density current generation, and shows in real time.
Described depth transducer is the middle spindle structure with airway and cable.Preferably, described depth transducer comprises malleation chamber, negative pressure cavity, top end socket, pressure sensitive diaphragm, outer chamber wall and is arranged on the back purge system (not shown) in outer chamber wall.In the vertical Embedded test bar of depth transducer, place silt silting.Depth transducer utilizes static pressure measurement principle,
, wherein P is for meeting liquid level pressure, and Po is atmospheric pressure on liquid level, and ρ is fluid to be measured density, and H is the degree of depth that drops into liquid, g is local gravitational acceleration; By airway, the pressure of liquid is incorporated into the malleation chamber of sensor, again the negative pressure cavity of the atmospheric pressure Po on liquid level and sensor is connected, with the Po at the offset sensor back side, makes sensor record pressure to be: ρ gH, by measuring pressure P, obtain the liquid level degree of depth.Described flow rate detection module comprises current meter, is arranged on the impeller with flabellum of current meter front end, the scrambler being fixedly connected with current meter rear end, the waterproof sealing storehouse of placing scrambler, and the water conservancy diversion empennage being connected with waterproof sealing storehouse; Described scrambler is flexibly connected with impeller by the tape spool of waterproof.The rotation of current impeller, thus drive scrambler rotation, scrambler often rotates a circle and produces 200 potential pulses, and the present invention designs 10 seconds for once counting the cycle, writes down the pulse sum C of 10 seconds inner encoders
10, more can obtain 10 seconds internal propellers several Q that turn-take divided by 200; In actual applications, can measure water velocity V by Experimental Calibration, Experimental Calibration is to carry out in tank, preset the current of different in flow rate, flow rate detection module is obtained different pulse values, carries out the Fitting Calculation, indirectly draws the computing formula of flow rate detection module velocity measurement; Current velocity testing method computing formula based on step-by-step counting principle
, wherein K is the fitting coefficient drawing by Experimental Calibration.Cooling-water temperature sensor adopts thermistor (temperature) sensor to realize the temperature detection of density current water body, thermal resistance is that the thermal effect based on resistance is carried out temperature survey, be the resistance variation with temperature characteristic of resistive element, measure the change in resistance of temperature-sensing thermal resistance, can measure water temperature.The thermistor using in the present invention is posistor sensor, measurement range-200 DEG C ~ 850 DEG C, and allowable temperature deviate 0.15+0.002|t|, minimum placed-depth 200mm, output current signal is 4 mA-20mA.
Described single chip control module is connected with host computer by GPRS network antenna, shows in real time, and measurement data is carried out to wireless conveying.Single chip control module circuit comprises single-chip microcomputer, clock circuit, reset circuit, reset circuit is made up of S2, R2, C7, RESET pin by control single chip computer completes reset, and clock circuit is made up of capacitor C X1, CX2 and crystal oscillator Y, and wherein Y is 11.0592M crystal oscillator.Described control panel is touch screen control panel, comprise data disaply moudle, alarm module and touch screen control module, described touch screen control module control motor drags and is integrated in the sensor of measuring on support bar, realizes the density current Data Detection at reservoir area different depth.Power module circuitry comprises 12V power supply terminal, switch, voltage stabilizer, pilot lamp, is made up of P1, S1, C1, C2, C3, C4, R1, LED, U1, and wherein U1 is LM7805 voltage stabilizing chip, for system provides 5V stabilized voltage supply.Signal condition module is mainly for the treatment of the signal of flow sensor output, amplified processing, operational amplifier U2C in its circuit and triode Q2 form an interface circuit matching with sensor output impedance, be mainly used in charge signal conversion position voltage signal, 1 pin of combination hub P6 adds a resistance and is connected with ground, 9,8 pin of U2C are connected, 9 pin connect ground connection after a resistance, form a follower, the input impedance of this interface circuit is decided by U2C and peripheral cell, and concrete numerical value need to be determined in debugging; Operational amplifier U2A and peripheral cell R11, R12, R14 and C12, C13 form integrating amplification circuit, amplify and hold-off voltage saltus step for signal, suppress disturbing pulse and useless pulse; Operational amplifier U2B and peripheral cell R15, R16, R17, R18 and C14 form algorithm circuit, for reducing the amplitude of input signal, filter out noise is disturbed, and within making the input range of signal in subsequent conditioning circuit ADC, meets the requirement of Chip Microcomputer A/D C input end to signal amplitude.
A/D modular converter circuit part, mainly formed by ADC0809 chip, be accompanied with the interface circuit of Liquid Crystal Module and GPRS module, mainly use tetra-passages of IN0-IN3, DO-D7 is connected with single-chip microcomputer P1 mouth respectively, and by P2.0, the P2.1 of single-chip microcomputer, the selection of tri-pin control channels of P2.2; P3 interface is used for connecting LCD1602 liquid crystal display, and wherein slide rheostat R3 is used for controlling liquid crystal display brightness, reads and writes control by P2.4, P2.5, the P2.6 three-prong control LCD1602 of single-chip microcomputer, the input of single-chip microcomputer P0 mouth control data; P2 interface is used for connecting GPRS wireless module, connects single-chip microcomputer U2 by P3.0, P3.1, by serial ports transmitting and receiving data, starts GPRS wireless module in addition by the P2.3 pin of single-chip microcomputer U2.
Simplicity of design of the present invention, reasonable, testing result is more reliable, stable, and data are more accurate, and can realize online automatic detection density current, can monitor and manage more intuitively, in real time whole testing process by control panel, there is very high social value and market popularization value.
The present invention is not limited to above-mentioned embodiment, and those skilled in the art also can make multiple variation accordingly, but any and the present invention are equal to or similarly change and all should be encompassed in the scope of the claims in the present invention.
Claims (9)
1. one kind high contains husky Turbid Density Flow detection system, comprise signal detection system, control system, control panel, each systematic order is connected, it is characterized in that: signal detection system comprises to be measured support bar and be arranged on successively from the bottom to top the flow rate detection module of measuring on support bar, ultrasound wave silt content monitoring modular, depth transducer, cooling-water temperature sensor, the top of described measurement support bar is fixed on rotating disk by cable, one end of rotating disk and rack cross-bar is rotationally connected, the other end of rack cross-bar is connected with motor, and described motor is arranged on bracing frame; Described control system comprises power module, and the data processing module and the single chip control module that are connected with power module respectively.
2. height according to claim 1 is containing husky Turbid Density Flow detection system, it is characterized in that: data processing module comprises signal condition module, A/D modular converter, described signal condition module is connected with signal detection system, gather the signal of flow velocity detection module, ultrasound wave silt content detection module, depth transducer, cooling-water temperature sensor transmission, signal condition module is connected with A/D modular converter, and described A/D modular converter is connected with single chip control module.
3. height according to claim 1 is containing husky Turbid Density Flow detection system, it is characterized in that: described signal detection system also comprises the multi-channel signal processing system of measuring on support bar that is fixed on, flow rate detection module, ultrasound wave silt content detection module, depth transducer, cooling-water temperature sensor is connected with signal condition module by multi-channel signal processing system respectively.
4. height according to claim 1, containing husky Turbid Density Flow detection system, is characterized in that: described ultrasound wave silt content detection module comprises symmetry and is fixedly mounted on the four wave beam ultrasonic sensors of measuring on support bar.
5. height according to claim 1, containing husky Turbid Density Flow detection system, is characterized in that: described depth transducer is the middle spindle structure with airway and cable.
6. height according to claim 5, containing husky Turbid Density Flow detection system, is characterized in that: described depth transducer comprises malleation chamber, negative pressure cavity, top end socket, pressure sensitive diaphragm, outer chamber wall and is arranged on the back purge system in outer chamber wall.
7. height according to claim 1 is containing husky Turbid Density Flow detection system, it is characterized in that: described flow rate detection module comprises current meter, be arranged on the impeller with flabellum of current meter front end, the scrambler being fixedly connected with current meter rear end, place the waterproof sealing storehouse of scrambler, and the water conservancy diversion empennage being connected with waterproof sealing storehouse; Described scrambler is flexibly connected with impeller by the tape spool of waterproof.
8. height according to claim 1, containing husky Turbid Density Flow detection system, is characterized in that: described single chip control module is connected with host computer by GPRS network.
9. height according to claim 1 is containing husky Turbid Density Flow detection system, it is characterized in that: described control panel is touch screen control panel, comprise data disaply moudle, alarm module and touch screen control module, described touch screen control module control motor drags and is integrated in the sensor of measuring on support bar, realizes the density current Data Detection at reservoir area different depth.
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| CN201410261768.4A CN104019804B (en) | 2014-06-13 | 2014-06-13 | A kind of high silt laden flood density current detecting system |
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| CN201410261768.4A CN104019804B (en) | 2014-06-13 | 2014-06-13 | A kind of high silt laden flood density current detecting system |
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| CN104019804B CN104019804B (en) | 2017-07-11 |
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| CN104457712A (en) * | 2014-11-24 | 2015-03-25 | 三峡大学 | System and method for mobile monitoring of density-stratified flow of branch reservoir bay in river-type reservoir at low flow rate |
| CN104597121A (en) * | 2015-01-25 | 2015-05-06 | 华北水利水电大学 | System for detecting content of sand in Yellow River by adopting audio frequency resonance principle |
| CN106872723A (en) * | 2017-04-25 | 2017-06-20 | 黄河水利委员会黄河水利科学研究院 | Density current vertical line multiple spot flow monitoring method |
| CN108303235A (en) * | 2018-03-29 | 2018-07-20 | 中国长江三峡集团有限公司 | Temperature-silt coupling density current monitoring device and method in a kind of large scale deep-water reservoir |
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| CN109765142A (en) * | 2019-01-24 | 2019-05-17 | 山东杰控电气技术有限公司 | A kind of mobility high concentration slurry density measurement device and method |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104457712A (en) * | 2014-11-24 | 2015-03-25 | 三峡大学 | System and method for mobile monitoring of density-stratified flow of branch reservoir bay in river-type reservoir at low flow rate |
| CN104597121A (en) * | 2015-01-25 | 2015-05-06 | 华北水利水电大学 | System for detecting content of sand in Yellow River by adopting audio frequency resonance principle |
| CN104597121B (en) * | 2015-01-25 | 2018-09-25 | 华北水利水电大学 | A kind of the Yellow River silt content detecting system using audio resonance principle |
| CN106872723A (en) * | 2017-04-25 | 2017-06-20 | 黄河水利委员会黄河水利科学研究院 | Density current vertical line multiple spot flow monitoring method |
| CN108333085A (en) * | 2017-12-29 | 2018-07-27 | 江苏集萃智能制造技术研究所有限公司 | A kind of photo-electric vertical line silt content detecting system and method with capacitance and color compensating |
| CN108333085B (en) * | 2017-12-29 | 2021-05-04 | 南京集新萃信息科技有限公司 | Photoelectric vertical line sand content detection method with capacitance and color compensation |
| CN108303235A (en) * | 2018-03-29 | 2018-07-20 | 中国长江三峡集团有限公司 | Temperature-silt coupling density current monitoring device and method in a kind of large scale deep-water reservoir |
| CN108303235B (en) * | 2018-03-29 | 2023-08-15 | 中国长江三峡集团有限公司 | Temperature-sediment coupling differential gravity flow monitoring device and method in large deep reservoir |
| CN109765142A (en) * | 2019-01-24 | 2019-05-17 | 山东杰控电气技术有限公司 | A kind of mobility high concentration slurry density measurement device and method |
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