CN111811613A - Laser-based oil-water interface detection device and control system - Google Patents
Laser-based oil-water interface detection device and control system Download PDFInfo
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- CN111811613A CN111811613A CN201910282776.XA CN201910282776A CN111811613A CN 111811613 A CN111811613 A CN 111811613A CN 201910282776 A CN201910282776 A CN 201910282776A CN 111811613 A CN111811613 A CN 111811613A
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- 238000001514 detection method Methods 0.000 title claims abstract description 134
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 94
- 230000003287 optical effect Effects 0.000 claims abstract description 20
- 238000001914 filtration Methods 0.000 claims abstract description 5
- 238000004140 cleaning Methods 0.000 claims description 28
- 238000004891 communication Methods 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 7
- 238000005259 measurement Methods 0.000 abstract description 15
- 230000000694 effects Effects 0.000 abstract description 7
- 238000012544 monitoring process Methods 0.000 abstract description 7
- 235000019476 oil-water mixture Nutrition 0.000 abstract description 7
- 239000003921 oil Substances 0.000 description 9
- 235000019198 oils Nutrition 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
- G01F23/284—Electromagnetic waves
- G01F23/292—Light, e.g. infrared or ultraviolet
Abstract
The invention discloses an oil-water interface detection device and a control system based on laser, which belong to the field of oil-water interface detection and are realized by a fixing unit; a detection unit connected with the fixing unit, the detection unit including: a laser that emits an incident laser beam; the transmitting lens receives and transmits the incident laser beam, and is arranged on a light path of the incident laser beam; a filter for receiving the transmitted incident laser beam and filtering the incident laser beam; a receiving lens that receives the filtered incident laser beam; the photoelectric detector receives the incident laser beam emitted by the receiving lens and converts the optical signal of the incident laser beam into an electric signal to be output, so that the technical effect of high measurement precision, adaptability to oil-water mixtures with different densities and different types and stability and high efficiency of detection means for monitoring an oil-water interface is achieved.
Description
Technical Field
The invention relates to the technical field of oil-water interface detection, in particular to an oil-water interface detection device and a control system based on laser.
Background
At present, in the industries of petrochemical industry and the like, water in oil products needs to be removed, after oil containing water enters an oil-water separator, an oil-water interface is formed through sedimentation due to different densities of the oil and the water, and when the oil-water interface reaches a high level limited by a process, a valve is opened to drain water in time; when the oil-water interface reaches the low level defined by the process, the valve is closed in time to stop water drainage. Therefore, accurate detection of the oil-water interface is required.
Present oil water interface detection device need measure many times just can acquire oil water interface height, and the structure is complicated, and measurement of efficiency is low, hardly satisfies real-time interface height measurement requirement, and the precision is low moreover, has the limitation.
Disclosure of Invention
The invention provides an oil-water interface detection device and a control system based on laser, which are used for solving the technical problems that the oil-water interface detection device in the prior art needs to measure for multiple times to obtain the height of an oil-water interface, has a complex structure, low measurement efficiency, low measurement precision and limitation, achieves high measurement precision, is suitable for oil-water mixtures with different densities and types, and provides a stable and efficient detection means for oil-water interface monitoring.
In a first aspect, the present invention provides a laser-based oil-water interface detection apparatus, including: a fixing unit; the detecting element, the detecting element with fixed unit is connected, and is located fixed unit's below, wherein, the detecting element includes: a laser that emits an incident laser beam; the transmitting lens receives and transmits the incident laser beam, and is arranged on a light path of the incident laser beam; a filter for receiving and filtering the emitted incident laser beam, the filter being disposed on an optical path of the emitted incident laser beam; a receiving lens for receiving the filtered incident laser beam, the receiving lens being disposed on an optical path of the filtered incident laser beam; and the photoelectric detector is used for receiving the incident laser beam emitted by the receiving lens and converting an optical signal of the incident laser beam into an electric signal to be output.
Preferably, the method further comprises the following steps: and the cleaning unit is connected with one end, far away from the fixing unit, of the detection unit and is positioned below the detection unit.
Preferably, the method further comprises the following steps: the weight is connected with one end, far away from the detection unit, of the cleaning unit and is positioned below the cleaning unit.
Preferably, the detection unit further includes: the emission window is provided with a first accommodating space, and the laser and the emission lens are arranged in the first accommodating space; and the receiving window is provided with a second accommodating space, and the filter, the receiving lens and the photoelectric detector are all arranged in the second accommodating space.
Preferably, a preset distance is arranged between the transmitting window and the receiving window.
Preferably, the number of the detection units is at least two.
Preferably, the number of the detection units is N, and
l is the depth of the oil-water detection liquid level, D is the distance between two adjacent detection units, H is the height of one detection unit, and L/(H + D) is an integer part.
Preferably, the fixing unit is connected with the detection unit, the detection unit is connected with the cleaning unit, and the cleaning unit is connected with the weight through threads or magnets.
In a second aspect, the present invention provides a laser-based oil-water interface detection control system, including the above liquid level detection device, including: and the display control unit is connected with the detection unit through a power line and a data line.
Preferably, the display control unit further includes: a power source; the controller is in communication connection with the detection unit and the cleaning unit respectively and is used for acquiring signal information transmitted by the photoelectric detector; the processor is in communication connection with the detection unit, receives the signal information sent by the controller and performs data processing; and the display is in communication connection with the processor, and receives and displays the data information sent by the processor.
One or more technical solutions in the embodiments of the present invention at least have one or more of the following technical effects:
the embodiment of the invention provides a laser-based oil-water interface detection device and a control system, which comprise a fixing unit and detection units, wherein the oil-water interface detection device comprises a plurality of detection units, the detection units are connected with the fixing unit and positioned below the fixing unit, each detection unit comprises a laser, an emission lens, a filter, a receiving lens and a photoelectric detector, the laser mainly plays a role of emitting laser beams, then the laser beams are emitted through the emission lens and reach the receiving lens through the filter, and finally after the photoelectric detectors receive the laser beams, the photoelectric detectors convert optical signals of the laser beams into electric signals and transmit the electric signals to a display control unit. Therefore, the laser, the emission lens, the filter, the reception lens, and the photodetector are all disposed in the optical path direction of the laser beam. Laser is emitted through a laser, photoelectric conversion signals of each detection unit are recorded through a photoelectric detector, and after data processing, the position of an oil-water interface is obtained. Therefore, the technical problems that an oil-water interface detection device in the prior art needs to measure for multiple times to obtain the height of the oil-water interface, the structure is complex, the measurement efficiency is low, the measurement precision is low, and limitation exists are solved, the high-precision oil-water interface detection device achieves the technical effects that the measurement precision is high, the device is suitable for oil-water mixtures with different densities and different types, and a stable and efficient detection means is provided for oil-water interface monitoring.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
Fig. 1 is a schematic structural diagram of an oil-water interface detection device based on laser in an embodiment of the present invention.
Description of reference numerals: 1-a display control unit; 11-a power supply; 12-a controller; 13-a processor; 14-a display; 2-a fixation unit; 3-a detection unit; 31-a laser; 32-an emission lens; 33-an emission window; 34-a receive window; 35-a filter; 36-a receiving lens; 37-a photodetector; 4-a cleaning unit; 5-weight dropper.
Detailed Description
The embodiment of the invention provides an oil-water interface detection device and a control system based on laser, which are used for solving the technical problems that the oil-water interface detection device in the prior art needs to measure for multiple times to obtain the height of an oil-water interface, and is complex in structure, low in measurement efficiency, low in measurement precision and limited.
The technical scheme in the embodiment of the invention has the following general idea:
the embodiment of the invention provides an oil-water interface detection device and a control system based on laser, which pass through a fixed unit; the detecting element, the detecting element with fixed unit is connected, and is located fixed unit's below, wherein, the detecting element includes: a laser that emits an incident laser beam; the transmitting lens receives and transmits the incident laser beam, and is arranged on a light path of the incident laser beam; a filter for receiving and filtering the emitted incident laser beam, the filter being disposed on an optical path of the emitted incident laser beam; a receiving lens for receiving the filtered incident laser beam, the receiving lens being disposed on an optical path of the filtered incident laser beam; and the photoelectric detector is used for receiving the incident laser beam emitted by the receiving lens and converting an optical signal of the incident laser beam into an electric signal to be output. The technical effects of high measurement precision, adaptability to oil-water mixtures with different densities and types and capability of providing a stable and efficient detection means for oil-water interface monitoring are achieved.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Examples
Fig. 1 is a schematic structural diagram of an oil-water interface detection device based on laser in an embodiment of the present invention, as shown in fig. 1, the oil-water interface detection device includes:
a fixed unit 2.
Specifically, the fixing unit 2 is a structure capable of fixing the device in the oil-water interface detection device, when the fixing unit 2 is used, the oil-water interface detection device is fixed at the top of an oil-water tank to be detected through the fixing unit 2, and the detection unit 3 is further connected below the fixing unit 2, so that the purpose of detecting the oil-water interface is achieved.
A detecting unit 3, the detecting unit 3 is connected with the fixing unit 2, and is located below the fixing unit 2, wherein the detecting unit 3 includes: a laser 31 that emits an incident laser beam; an emission lens 32 that receives and emits the incident laser beam, the emission lens 32 being disposed on an optical path of the incident laser beam; a filter 35 for receiving and filtering the emitted incident laser beam, wherein the filter 35 is disposed on an optical path of the emitted incident laser beam; a receiving lens 36 receiving the filtered incident laser beam, the receiving lens 36 being disposed on an optical path of the filtered incident laser beam; and a photodetector 37 for receiving the incident laser beam emitted from the receiving lens and converting the optical signal of the incident laser beam into an electrical signal for output.
Further, the detection unit further includes: the emission window 33, the emission window 33 has a first accommodating space, and the laser 31 and the emission lens 32 are both disposed in the first accommodating space;
and the receiving window 34, where the receiving window 34 has a second accommodating space, and the filter 35, the receiving lens 36, and the photodetector 37 are all disposed in the second accommodating space.
Further, the transmitting window 33 and the receiving window 34 have a predetermined distance therebetween.
Further, the number of the detecting units 3 is at least two.
Further, the number of the detecting units 3 is N, and
wherein, L is the depth of the oil-water detection liquid level, D is the distance between two adjacent detection units 3, H is the height of one detection unit 3, and L/(H + D) is an integer part.
Specifically, the detection unit 3 is a main structure for detecting in the oil-water interface detection device, and the detection unit 3 includes a laser 31, an emission lens 32, an emission window 33, a reception window 34, a filter 35, a reception lens 36, and a photodetector 37, specifically: the main function of the laser 31 is to emit a laser beam, then emit the laser beam through the emitting lens 32, then the laser beam is filtered by the filter 35 and reaches the receiving lens 36, and finally the laser beam is received by the photodetector 37, and then the photodetector 37 converts the optical signal of the laser beam into an electrical signal and transmits the electrical signal to the display control unit 1. Therefore, the laser 31, the transmitting lens 32, the filter 35, the receiving lens 36, and the photodetector 37 are all disposed in the optical path direction of the laser beam, and the laser main axis of the transmitting lens 32 coincides with the laser main axis of the receiving lens 36, so as to ensure the accuracy of laser transmission. Further, the laser 31 and the emission lens 32 are sealed by the emission window 33, the filter 35, the receiving lens 36 and the photodetector 37 are sealed by the receiving window 34, a channel is formed between the emission window 33 and the receiving window 34, a certain preset distance is formed between the two windows, and the preset distance between the emission window 33 and the receiving window 34 can be adjusted by the controller 12, that is, the preset distance can be adjusted according to actual conditions. Different oils and water have different transmittances for laser light, so that the preset distance between the emission window 33 and the reception window 34 needs to be changed accordingly. The oil-water interface detection is carried out by utilizing the transmittance difference of oil and water to laser and the strength response jump of the photoelectric detector, so that the thickness and the laser emission power of the detection liquid in the adjustable detection unit are adjusted, and the technical effect of adapting to oil-water mixtures with different densities and types is achieved.
The number of the detecting units 3 is calculated by the formula
Wherein, L is the range of the oil-water detection liquid level, D is the distance between two adjacent detection units 3, the data can be set according to the actual requirement, H is the height of one detection unit 3, and when calculating L/(H + D), the calculation result takes the integer part, that is, only the integer part is reserved, and the number behind the decimal point is omitted. Therefore, the detection units 3 can be installed according to the monitoring range of the oil-water interface during actual operation, the detection units 3 are connected in series, the top end of the uppermost detection unit is connected with the fixing unit 2, and the bottom end of the bottommost detection unit is connected with the automatic cleaning unit 4. In other words, the oil-water interface detection device provided by the embodiment can adjust the length of the whole detection module according to the depth range of the oil-water interface, and is suitable for different depth detection requirements.
The oil-water interface detection device further comprises: and the cleaning unit 4 is connected with one end, far away from the fixing unit 2, of the detection unit 3, and is positioned below the detection unit 3.
The oil-water interface detection device further comprises: and the weight 5 is connected with one end of the cleaning unit 4 far away from the detection unit 3, and is positioned below the cleaning unit 4.
Further, the fixing unit 2 is connected with the detecting unit 3, the detecting unit 3 is connected with the cleaning unit 4, and the cleaning unit 4 is connected with the weight 5 through threads or magnets.
Specifically, the cleaning unit 4 is a part capable of automatically cleaning in the oil-water interface detection device, that is, the cleaning unit 4 can be controlled by the controller 12 to clean the transmitting window 33 and the receiving window 34 of each detection unit 3, so that the technical problem of oil film adhesion of the transmitting window and the receiving window caused by long-term detection is avoided, the oil-water interface detection device in the embodiment has an automatic cleaning function, long-term stable operation of the system is ensured, the stability and the service life of the system are improved, and a stable and efficient detection means is provided for oil-water interface monitoring. When a plurality of detection units 3 are installed in the oil-water interface detection device, the cleaning unit 4 is installed below the bottommost detection unit 3, and the weight 5 is installed below the cleaning unit 4, wherein the fixing unit 2, the detection unit 3, the automatic cleaning unit 4 and the weight 5 are connected through screw threads or magnets.
Therefore, the invention utilizes the difference of the transmissivity of the oil and the water to the laser to cause the photoelectric detector to receive different light intensities to detect the oil-water interface in real time, can adjust the distance between the transmitting window and the receiving window and the power of the transmitted laser according to the transmissivity of the oil-water laser so as to adapt to different oil-water mixtures, and can adjust the length of the detection unit according to the detection depth range.
Example two
The embodiment of the present invention further provides a laser-based oil-water interface detection control system, which includes the oil-water interface detection device, and the laser-based oil-water interface detection control system further includes:
and the display control unit 1 is connected with the detection unit 3 through a power line and a data line.
Further, the display control unit 1 further includes: a power supply 11; the controller 12 is in communication connection with the detection unit 3 and the cleaning unit 4 respectively, and collects signal information transmitted by the photoelectric detector 37; the processor 13 is in communication connection with the detection unit 3, and receives the signal information sent by the controller 12 and performs data processing; and the display 14 is in communication connection with the processor 13, and receives and displays the data information sent by the processor 13.
Specifically, the display control unit 1 is connected to the detection unit 3 through a power line and a data line, and the display control unit 1 includes a power supply 11, a controller 12, a processor 13, and a display 14, specifically: the power supply 11 provides electric power for the display control unit 1, the controller 12 is a main control element in the oil-water interface detection device, the laser 31 is controlled to emit laser through the controller 12, the photoelectric detector 37 is used for recording a photoelectric conversion signal of each detection unit 3 and transmitting the photoelectric conversion signal to the processor 13 through a data line, and the processor 13 performs data processing according to an output signal of each detection unit 3 to obtain an oil-water interface position and transmits the oil-water interface position to the display 14 for displaying the oil-water interface position.
When the oil-water interface detection device works, the working process is as follows: firstly, the number of the detecting units 3 is determined according to the detecting range of the oil-water interface, then the fixing unit 2, the detecting unit 3, the automatic cleaning unit 4 and the weight 5 are connected, then, the display control unit 1 and the detection unit 3 are connected with a data line through power lines, further, the fixing unit 2 is fixed on the top of the oil-water tank to be detected, further, the power source 11 is turned on, the distance between the emission window 33 and the receiving window 34 is adjusted through the controller 12, then, the laser 31 is controlled by the controller 12 to emit laser, the photoelectric detector 37 is used to record the photoelectric conversion signal of each detection unit 3 and transmit the photoelectric conversion signal to the processor 13 through a data line, and finally, the processor 13 performs data processing according to the output signal of each detection unit 3 to obtain the oil-water interface position, and transmits the oil-water interface position to the display 14, and the oil-water interface position is displayed through the display 14.
One or more technical solutions in the embodiments of the present invention at least have one or more of the following technical effects:
the embodiment of the invention provides a laser-based oil-water interface detection device and a control system, which comprise a fixing unit and detection units, wherein the oil-water interface detection device comprises a plurality of detection units, the detection units are connected with the fixing unit and positioned below the fixing unit, each detection unit comprises a laser, an emission lens, a filter, a receiving lens and a photoelectric detector, the laser mainly plays a role of emitting laser beams, then the laser beams are emitted through the emission lens and reach the receiving lens through the filter, and finally after the photoelectric detectors receive the laser beams, the photoelectric detectors convert optical signals of the laser beams into electric signals and transmit the electric signals to a display control unit. Therefore, the laser, the emission lens, the filter, the reception lens, and the photodetector are all disposed in the optical path direction of the laser beam. Laser is emitted through a laser, photoelectric conversion signals of each detection unit are recorded through a photoelectric detector, and after data processing, the position of an oil-water interface is obtained. Therefore, the technical problems that an oil-water interface detection device in the prior art needs to measure for multiple times to obtain the height of the oil-water interface, the structure is complex, the measurement efficiency is low, the measurement precision is low, and limitation exists are solved, the high-precision oil-water interface detection device achieves the technical effects that the measurement precision is high, the device is suitable for oil-water mixtures with different densities and different types, and a stable and efficient detection means is provided for oil-water interface monitoring.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various modifications and variations can be made in the embodiments of the present invention without departing from the spirit or scope of the embodiments of the invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to encompass such modifications and variations.
Claims (10)
1. The utility model provides an oil-water interface detection device based on laser which characterized in that includes:
a fixing unit;
the detecting element, the detecting element with fixed unit is connected, and is located fixed unit's below, wherein, the detecting element includes:
a laser that emits an incident laser beam;
the transmitting lens receives and transmits the incident laser beam, and is arranged on a light path of the incident laser beam;
a filter for receiving and filtering the emitted incident laser beam, the filter being disposed on an optical path of the emitted incident laser beam;
a receiving lens for receiving the filtered incident laser beam, the receiving lens being disposed on an optical path of the filtered incident laser beam;
and the photoelectric detector is used for receiving the incident laser beam emitted by the receiving lens and converting an optical signal of the incident laser beam into an electric signal to be output.
2. The oil-water interface detection device of claim 1, further comprising:
and the cleaning unit is connected with one end, far away from the fixing unit, of the detection unit and is positioned below the detection unit.
3. The oil-water interface detection device of claim 2, further comprising:
the weight is connected with one end, far away from the detection unit, of the cleaning unit and is positioned below the cleaning unit.
4. The oil-water interface detection device of claim 1, wherein the detection unit further comprises:
the emission window is provided with a first accommodating space, and the laser and the emission lens are arranged in the first accommodating space;
and the receiving window is provided with a second accommodating space, and the filter, the receiving lens and the photoelectric detector are all arranged in the second accommodating space.
5. The oil-water interface detection device of claim 4, wherein the emission window and the receiving window have a predetermined distance therebetween.
6. The oil-water interface detection device of claim 1, wherein the number of detection units is at least two.
7. The oil-water interface detection device of claim 6, wherein the number of the detection units is N, and
l is the depth of the oil-water detection liquid level, D is the distance between two adjacent detection units, H is the height of one detection unit, and L/(H + D) is an integer part.
8. The oil-water interface detecting device of claim 3, wherein the fixing unit is connected to the detecting unit, the detecting unit is connected to the cleaning unit, and the cleaning unit is connected to the weight via a screw or a magnet.
9. A laser-based oil-water interface detection control system comprising the liquid level detection device according to any one of claims 1 to 8, comprising:
and the display control unit is connected with the detection unit through a power line and a data line.
10. The oil-water interface detection control system of claim 9, wherein the display control unit further comprises:
a power source;
the controller is in communication connection with the detection unit and the cleaning unit respectively and is used for acquiring signal information transmitted by the photoelectric detector;
the processor is in communication connection with the detection unit, receives the signal information sent by the controller and performs data processing;
and the display is in communication connection with the processor, and receives and displays the data information sent by the processor.
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| CN201910282776.XA CN111811613A (en) | 2019-04-10 | 2019-04-10 | Laser-based oil-water interface detection device and control system |
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| CN201910282776.XA CN111811613A (en) | 2019-04-10 | 2019-04-10 | Laser-based oil-water interface detection device and control system |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5334850A (en) * | 1991-10-17 | 1994-08-02 | Sumitomo Chemical Co., Ltd. | Method and device for optically detecting an interface between two fluids and method of setting the parameters for such detection |
| CN102052953A (en) * | 2009-11-02 | 2011-05-11 | 西安费斯达自动化工程有限公司 | Optical array image detecting system of oil, water and emulsifying layer interface of oil tank |
| US20120138824A1 (en) * | 2010-12-03 | 2012-06-07 | Fang Wen | Continuous liquid level sensor having multiple light sources and light receiving devices |
| CN106840312A (en) * | 2017-01-10 | 2017-06-13 | 陕西科技大学 | A kind of crude oil storage tank water liquid level measurement mechanism for oil and method |
| CN206756268U (en) * | 2017-04-05 | 2017-12-15 | 西安圣豆电子信息技术有限公司 | A kind of device of real-time tracking layering interfaces |
-
2019
- 2019-04-10 CN CN201910282776.XA patent/CN111811613A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5334850A (en) * | 1991-10-17 | 1994-08-02 | Sumitomo Chemical Co., Ltd. | Method and device for optically detecting an interface between two fluids and method of setting the parameters for such detection |
| CN102052953A (en) * | 2009-11-02 | 2011-05-11 | 西安费斯达自动化工程有限公司 | Optical array image detecting system of oil, water and emulsifying layer interface of oil tank |
| US20120138824A1 (en) * | 2010-12-03 | 2012-06-07 | Fang Wen | Continuous liquid level sensor having multiple light sources and light receiving devices |
| CN106840312A (en) * | 2017-01-10 | 2017-06-13 | 陕西科技大学 | A kind of crude oil storage tank water liquid level measurement mechanism for oil and method |
| CN206756268U (en) * | 2017-04-05 | 2017-12-15 | 西安圣豆电子信息技术有限公司 | A kind of device of real-time tracking layering interfaces |
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