CN102830085A - Detection device for engine oil performance of engine - Google Patents
Detection device for engine oil performance of engine Download PDFInfo
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- CN102830085A CN102830085A CN2012103134386A CN201210313438A CN102830085A CN 102830085 A CN102830085 A CN 102830085A CN 2012103134386 A CN2012103134386 A CN 2012103134386A CN 201210313438 A CN201210313438 A CN 201210313438A CN 102830085 A CN102830085 A CN 102830085A
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Abstract
The invention provides a detection device for engine oil performance of an engine, belonging to the technical field of measurement and solving the problems of single physical and chemical parameter and incapability of scientifically and rationally judging the quality of the engine oil existing in the conventional engine oil detection method. The detection device for the engine oil performance of the engine comprises a capacitive sensor for detecting capacitance of the engine oil, an infrared sensor for detecting clarity of the engine oil, a display unit for displaying a result and a processor, wherein the processor is electrically connected with all the capacitive sensor, the infrared sensor and the display unit and can be used for analyzing signals input by the capacitive sensor and the infrared sensor and transmitting an analysis and processing result to the display unit. The physical and chemical parameters such as viscosity of the engine oil, moisture, open flash point, acid value, iron content and n-pentane insoluble substance are effectively and comprehensively evaluated by the capacitive sensor and the infrared sensor of the detection device for the engine oil performance of the engine, so that the detection device has the advantages of complete detection parameters, scientific and rational method and accurate result.
Description
Technical field
The invention belongs to and measure or technical field of measurement and test, relate to a kind of chemistry or physical property of measuring material, particularly a kind of engine motor oil device for detecting performance.
Background technology
Engine (Engine) be a kind of can being converted into of other form another kind of can machine, normally be converted into mechanical energy to chemical energy.It is used in the devices such as automobile, generator and steamer widely.
Machine oil, i.e. engine oil can play effects such as lubricated, cleaning, cooling, sealing, anti-attrition to engine.Engine is the heart of automobile, and the metal surface of many mutual fricting movements is arranged in the engine, and these component movement speed are fast, environment is poor, and working temperature can reach 400 ℃ to 600 ℃.Below abominable like this operating mode, have only qualified lubricating oil just can reduce the wearing and tearing of engine part, increase the service life.
Obviously, judge that scientifically and rationally the time of the aging machine oil of replacing just seems very important,,, and be unfavorable for economizing on resources environmental protection the waste that causes machine oil if change oil early; Late if change oil, then be prone to cause the damage of engine, influence the life-span of engine.For this reason; " the gasoline engine oil criteria for changing oil " that the People's Republic of China (PRC) formulates (GB/T8028-1994), " diesel engine oil criteria for changing oil " standard (GB/T7607-2002); Regulation is when a certain in the physical and chemical parameters such as the viscosity of machine oil, moisture, open flash point, acid number, iron content, n-pentane insoluble substance during above limit value, more change engine oil.
At present, the method used always of people is through condition judgment such as vehicle driving mileage, range estimation machine oil color or service times; Obviously science is not unreasonable yet for this quadrat method.Also the someone has designed the different detection device for this reason, like a kind of machine oil device for monitoring viscosity [application number: 200620104134.9 of Chinese patent document record; Notification number CN2911664Y]; Engine oil detector [application number: 200810009880.3; Publication number CN101509883A].Said apparatus perhaps all can detect a certain physical and chemical parameter of machine oil; But exist following defective: 1, need sampling to detect; And can not be in real time or the machine oil in the detection of engine discontinuously, make the driver can not understand the machine oil quality in time, still exist the more problem of change engine oil time of missing.2, it is single to detect the physical and chemical parameter of machine oil, can not science and reasonably judge the quality of machine oil.
Summary of the invention
The objective of the invention is to have the problems referred to above, proposed a kind of engine motor oil device for detecting performance of ability Comprehensive Assessment machine oil quality to existing technology.
The object of the invention can be realized through following technical proposal: a kind of engine motor oil device for detecting performance; It is characterized in that this pick-up unit comprises the capacitive transducer and the infrared sensor that is used to detect the machine oil clarity that are used to detect the machine oil capacitance; This pick-up unit also comprises a display unit that is used for display result, and one all electrically connect with capacitive transducer, infrared sensor and display unit can the analyzing and processing capacitive transducer and the signal of infrared sensor input and analysis processing result is transferred to the processor of display unit.
When machine oil went bad, the oxidized generation oxide of part hydrocarbon molecules, acid and other chemical substances made molecular polarization in the oil.Along with the accumulation of oxidation product and thermal degradation product, the continuous increase of external contaminant, polar molecule also is on the increase in the oil, causes the specific inductive capacity in the oil to change.Simultaneously, because friction and wear, the metallics of wearing and tearing also can make the specific inductive capacity of machine oil change with the strong compound of other electric conductivity.Electric capacity as test volume, can be distinguished different oil; Along with the variation of oil product, sampled value increases gradually.
Since contact with air and be heated, the oxidation gradually of easy quilt, along with the acidic materials in the oil, colloid, iron filings and pitch increase at leisure, the blackening gradually of the color of machine oil, viscosity also can descend gradually, performance reduction simultaneously.Along with the variation of oil product, the clarity of machine oil also reduces gradually, and promptly the sampled value of infrared sensor reduces gradually, is that 20% o'clock sampled value sharply diminishes at sample bad oil content especially.
Through the experiment of long-term discontinuity (under different weather, season condition); A large amount of related datas that parameter changes under the varying environment condition have been obtained; These data are as normal data, and are stored in the processor, i.e. the electric capacity critical value and the clarity critical value that contain of processor memory.Critical value all can show that in the unit shows people can compare according to display result and judge whether more change engine oil of needs with detection numerical value.Processor also can detect numerical value and electric capacity critical value and infrared sensor with capacitive transducer and detect numerical value and compare with the clarity critical value, in the unit demonstration, shows comparative result, and people can more directly judge whether more change engine oil like this.Wherein one is detected the undesirable just change engine oil more of numerical value.
In above-mentioned engine motor oil device for detecting performance, described processor comprises PIC single-chip microcomputer and electric capacity digital quantizer; Described capacitive transducer electrically connects through electric capacity digital quantizer and PIC single-chip microcomputer; Described infrared sensor and display unit all electrically connect with the PIC single-chip microcomputer.The electric capacity digital quantizer converts capacitive transducer into voltage signal.
In above-mentioned engine motor oil device for detecting performance, described display unit is LCD1602.Have little power consumption, volume is little, displaying contents is abundant, ultra-thin light and handy advantage.
In above-mentioned engine motor oil device for detecting performance, described infrared sensor comprises pedestal, is fixed with receiving tube and generator tube on the described pedestal, and the light emission end face of described generator tube and the light of receiving tube receive end face and is oppositely arranged.
Traditional infrared sensor receiving tube and power valve are equidirectional, but because infrared tube will be put into fuel tank, and this moment, rreturn value was at the bottom of infrared tube and the fuel tank or the value that reflects of oil tank wall, can not reflect the situation that machine oil is aging, go bad exactly.Over against the position, the signal value that receives so then is by the directly and accurate numerical value of reflection of different quality machine oil with receiving tube and power valve.
In above-mentioned engine motor oil device for detecting performance, the distance that the light emission end face of described generator tube and the light of described receiving tube receive between the end face is 1～10 ㎝.
In above-mentioned engine motor oil device for detecting performance, described capacitive transducer comprises housing, is fixed on first web joint and second web joint on the housing; Described first web joint vertically is fixed with multi-disc first condenser armature, and described second web joint vertically is fixed with multi-disc second condenser armature, the parallel and arranged adjacent alternately of described first condenser armature and second condenser armature.The probe of this structure is palisade, and the benefit of palisade probe is to change the capacitance that records through changing each parallel distance or increasing contact area, and measured value is also relatively stable reliable.Simultaneously, the cleaning more easily of palisade probe, the cleaning that guarantees probe is to improve the accuracy of test.
In above-mentioned engine motor oil device for detecting performance, described housing is fixedly connected through the Connection Block that adopts insulating material to process with pedestal.Connection Block connects two sensors makes it become a combined part, and two sensors are mounted more easily.Adopting insulating material can prevent effectively that little electric current from leaking climbs.
In above-mentioned engine motor oil device for detecting performance, described insulating material is teflon or pottery.
In above-mentioned engine motor oil device for detecting performance, the minor increment between described infrared sensor and the capacitive transducer is 1～10 ㎝.
In above-mentioned engine motor oil device for detecting performance, the wavelength that described infrared sensor can produce is any numerical value among 850～950nm.Can select different wavelengths according to different machine oil, promptly wavelength is corresponding one by one with the machine oil model, can improve the accuracy of detection effectively like this.
According to the actual detected situation, in above-mentioned engine motor oil device for detecting performance, described engine comprises the oil sump with shoe cream room, and described capacitive transducer and infrared sensor all are positioned at shoe cream room.This structure can make this pick-up unit in real time or the physical and chemical parameter of compartment of terrain detection of engine inner engine oil, in time understands the machine oil quality, avoids missing the more opportunity of change engine oil.
In above-mentioned engine motor oil device for detecting performance, described Connection Block is fixedly connected with oil sump through bolt.
Compared with prior art, this engine motor oil device for detecting performance has the following advantages:
1, capacitive transducer and infrared sensor just effectively and have synthetically been estimated the physical and chemical parameters such as viscosity, moisture, open flash point, acid number, iron content, n-pentane insoluble substance of machine oil, have thus that detected parameters is comprehensive, methodological science rationally and result's advantage accurately.
2, the wavelength that produces of infrared sensor can be adjusted, and makes it corresponding one by one with the machine oil model, has test specification advantage extensively and accurately thus.
3, capacitive transducer and infrared sensor are arranged in the oil sump, can be in real time or the compartment of terrain detection of engine in the machine oil quality, the driver can be in time and change engine oil more accurately, both guaranteed effectively more opportunity of change engine oil.
4, the structure of capacitive transducer and infrared sensor all improves and has guaranteed the accuracy of testing result effectively.
Description of drawings
Fig. 1 is the circuit theory diagrams of this engine motor oil device for detecting performance.
Fig. 2 is the schematic diagram of infrared sensor in this engine motor oil device for detecting performance.
Fig. 3 is the schematic diagram of capacitive transducer in this engine motor oil device for detecting performance.
Fig. 4 is infrared sensor and a capacitive transducer unitized construction synoptic diagram among the present invention.
Among the figure, 1, infrared sensor; 11, generator tube; 12, receiving tube; 13, pedestal; 2, capacitive transducer; 21, housing; 22, first web joint; 23, first condenser armature; 24, second web joint; 25, second condenser armature; 3, display unit; 4, PIC single-chip microcomputer; 5, electric capacity digital quantizer; 6, keyboard; 7, Connection Block.
Embodiment
Below be specific embodiment of the present invention and combine accompanying drawing, technical scheme of the present invention is done further to describe, but the present invention is not limited to these embodiment.
As shown in Figure 1, this engine motor oil device for detecting performance comprises that a capacitive transducer that is used to detect the machine oil capacitance 2, one are used to detect the infrared sensor 1 of machine oil clarity, a display unit 3 and a processor that is used for display result.
Specifically, as shown in Figure 3, capacitive transducer 2 comprises housing 21, is fixed on first web joint 22 and second web joint 24 on the housing 21; First web joint 22 is fixed with vertically that multi-disc first condenser armature 23, the second web joints 24 vertically are fixed with multi-disc second condenser armature, 25, the first condenser armatures 23 and second condenser armature 25 is parallel and arranged adjacent alternately.First condenser armature 23 that the present embodiment accompanying drawing provides and the sheet number of second condenser armature 25 are equal, and are 5, and the sheet number average of first condenser armature 23 and second condenser armature 25 can be any numerical value in 3～10 in reality.
The wavelength that infrared sensor 1 can produce is any numerical value among 850～950nm.Can select different wavelengths according to different machine oil, promptly wavelength is corresponding one by one with the machine oil model.The WV of infrared sensor 1 is 117～211V, and working current is 20mA; Generally select 850nm, 900nm and 950nm for use at reality test medium wavelength; In the different oil of test, change magnitude of voltage.
As shown in Figure 2, infrared sensor 1 comprises pedestal 13, is fixed with receiving tube 12 and generator tube 11 on the pedestal 13, and the light emission end face of generator tube 11 and the light of receiving tube 12 receive end face and is oppositely arranged.The distance that the light emission end face of generator tube 11 and the light of described receiving tube 12 receive between the end face is 1～10 ㎝; Can select the distance that is fit to according to different machine oil models.Thus, the light wave that sends from generator tube 11 receives through directly being received pipe 12 behind the tested machine oil, improves the accuracy that detects numerical value so effectively.
As shown in Figure 4, housing 21 is fixedly connected through the Connection Block 7 that adopts insulating material to process with pedestal 13.Insulating material is teflon or pottery.Simultaneously, guarantee that the minor increment between infrared sensor 1 and the capacitive transducer 2 is 1～10 ㎝.
Through the experiment of long-term discontinuity (under different weather, season condition); A large amount of related datas that parameter changes under the varying environment condition have been obtained; These data are as normal data, and are stored in the processor, i.e. the electric capacity critical value and the clarity critical value that contain of processor memory.
The quality of engine motor oil is often differentiated between right and wrong effectively through sampled value and these two parameters of capacitive transducer 2 sampled values of infrared sensor 1, and it is relatively stable reliable to detect the value that obtains.Respectively oil product is detected through infrared sensor 1 and capacitive transducer 2 two-way, provided relevant early warning value and alarming value, both will early warning when one of them parameter surpasses critical value, glimmer like display unit 3 low frequencies ground; And both will report to the police when surpassing separately critical value simultaneously, like the flicker of display unit 3 high-frequencies ground.
This engine motor oil device for detecting performance comprises that also one group electrically connects with PIC single-chip microcomputer 4 and can be to the keyboard 6 of PIC single-chip microcomputer 4 input signals, and keyboard 6 comprises reset key, oil product options button and data presentation key.After the input oil product is selected signal, the voltage that PIC single-chip microcomputer 4 can be gathered and conversion infrared sensor 1 provides.According to actual conditions, PIC single-chip microcomputer 4 can also adopt vehicle-mounted ECU or PC replacement.
For physical and chemical parameter real-time or compartment of terrain detection of engine inner engine oil, in time understand the machine oil quality, avoid missing the more opportunity of change engine oil; Engine comprises the oil sump with shoe cream room, can capacitive transducer 2 and infrared sensor 1 all placed in the shoe cream room and can immerse in the machine oil.Connection Block 7 is fixedly connected with oil sump through bolt, and sensor moves with machine oil when avoiding the work of flourishing mechanism thus.
Specific embodiment described herein only is that the present invention's spirit is illustrated.Person of ordinary skill in the field of the present invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although this paper has used infrared sensor 1 morely; Generator tube 11; Receiving tube 12; Pedestal 13; Capacitive transducer 2; Housing 21; First web joint 22; First condenser armature 23; Second web joint 24; Second condenser armature 25; Display unit 3; PIC single-chip microcomputer 4; Electric capacity digital quantizer 5; Keyboard 6; Connection Block 7 terms such as grade, but do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present invention more easily; It all is contrary with spirit of the present invention being construed to any additional restriction to them.
Claims (10)
1. an engine motor oil device for detecting performance is characterized in that, this pick-up unit comprises that one is used to detect the capacitive transducer (2) of machine oil capacitance and the infrared sensor (1) that is used to detect the machine oil clarity; This pick-up unit also comprises a display unit (3) that is used for display result, a processor that all electrically connects the signal can analyzing and processing capacitive transducer (2) imported with infrared sensor (1) with capacitive transducer (2), infrared sensor (1) and display unit (3) and analysis processing result is transferred to display unit (3).
2. engine motor oil device for detecting performance according to claim 1 is characterized in that, described processor comprises PIC single-chip microcomputer (4) and electric capacity digital quantizer (5); Described capacitive transducer (2) electrically connects through electric capacity digital quantizer (5) and PIC single-chip microcomputer (4); Described infrared sensor (1) and display unit (3) all electrically connect with PIC single-chip microcomputer (4).
3. engine motor oil device for detecting performance according to claim 2 is characterized in that, described display unit (3) is LCD1602.
4. according to claim 1 or 2 or 3 described engine motor oil device for detecting performance; It is characterized in that; Described infrared sensor (1) comprises pedestal (13); Be fixed with receiving tube (12) and generator tube (11) on the described pedestal (13), the light of the light emission end face of described generator tube (11) and receiving tube (12) receives end face and is oppositely arranged.
5. engine motor oil device for detecting performance according to claim 4 is characterized in that, the distance that the light of the light emission end face of described generator tube (11) and described receiving tube (12) receives between the end face is 1～10 ㎝.
6. engine motor oil device for detecting performance according to claim 4 is characterized in that, described capacitive transducer (2) comprises housing (21), is fixed on first web joint (22) and second web joint (24) on the housing (21); Described first web joint (22) vertically is fixed with multi-disc first condenser armature (23); Described second web joint (24) vertically is fixed with multi-disc second condenser armature (25), the parallel and arranged adjacent alternately of described first condenser armature (23) and second condenser armature (25).
7. engine motor oil device for detecting performance according to claim 6 is characterized in that, described housing (21) is fixedly connected through the Connection Block (7) that adopts insulating material to process with pedestal (13).
8. engine motor oil device for detecting performance according to claim 7 is characterized in that, described insulating material is teflon or pottery.
9. according to claim 1 or 2 or 3 described engine motor oil device for detecting performance, it is characterized in that the wavelength that described infrared sensor (1) can produce is any numerical value among 850～950nm.
10. engine motor oil device for detecting performance according to claim 7 is characterized in that, described Connection Block (7) is fixedly connected with oil sump through bolt.
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| CN2012103134386A CN102830085A (en) | 2012-08-30 | 2012-08-30 | Detection device for engine oil performance of engine |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104792973A (en) * | 2015-04-21 | 2015-07-22 | 西南石油大学 | Detection device and detection method for estimating vehicle-mounted engine oil life |
| CN104897880A (en) * | 2015-06-18 | 2015-09-09 | 洛阳大工检测技术有限公司 | In-use portable multi-parameter lubricating oil detector |
| CN105954146A (en) * | 2016-06-14 | 2016-09-21 | 中国人民解放军装甲兵工程学院 | Portable multifunctional comprehensive oil liquid tester |
| CN107228836A (en) * | 2017-05-30 | 2017-10-03 | 武汉材料保护研究所 | The infrared spectrum on-line testing method of lubricating oil high-temp friction process |
| CN107288704A (en) * | 2017-08-04 | 2017-10-24 | 宁夏中益康键科技有限公司 | Non-maintaining oil filter |
| CN108152478A (en) * | 2017-11-21 | 2018-06-12 | 浙江众邦机电科技有限公司 | A kind of sewing machine oil quality monitoring system |
| CN109184853A (en) * | 2018-09-19 | 2019-01-11 | 中北大学 | The automatic metering controller of automobile engine oil |
| CN111239057A (en) * | 2020-01-20 | 2020-06-05 | 通标标准技术服务有限公司 | Gasoline and diesel quality detection system |
| CN114088607A (en) * | 2021-10-25 | 2022-02-25 | 北京京能能源技术研究有限责任公司 | Online monitoring method for fan gear box |
| CN114137041A (en) * | 2021-11-18 | 2022-03-04 | 西南石油大学 | Automatic detection device for foam of gas production by foam discharge at well mouth |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020011095A1 (en) * | 2000-05-02 | 2002-01-31 | Park Kyong M. | Combined oil quality and viscosity sensing system |
| CN101201344A (en) * | 2007-12-06 | 2008-06-18 | 付强 | Random detection method and detection sensor for performance of engine lubricating oil |
| CN101251503A (en) * | 2007-12-18 | 2008-08-27 | 上海师范大学 | Method for automatic detection of vehicle engine oil dirtiness |
| CN201210137Y (en) * | 2008-06-11 | 2009-03-18 | 李春民 | Engine machine oil detection device |
| CN201786416U (en) * | 2010-09-21 | 2011-04-06 | 北汽福田汽车股份有限公司 | Engine oil change prompt device |
| CN201953434U (en) * | 2011-01-04 | 2011-08-31 | 浙江吉利汽车研究院有限公司 | Engine sump tank capable of insulating sound and reducing noise |
-
2012
- 2012-08-30 CN CN2012103134386A patent/CN102830085A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020011095A1 (en) * | 2000-05-02 | 2002-01-31 | Park Kyong M. | Combined oil quality and viscosity sensing system |
| CN101201344A (en) * | 2007-12-06 | 2008-06-18 | 付强 | Random detection method and detection sensor for performance of engine lubricating oil |
| CN101251503A (en) * | 2007-12-18 | 2008-08-27 | 上海师范大学 | Method for automatic detection of vehicle engine oil dirtiness |
| CN201210137Y (en) * | 2008-06-11 | 2009-03-18 | 李春民 | Engine machine oil detection device |
| CN201786416U (en) * | 2010-09-21 | 2011-04-06 | 北汽福田汽车股份有限公司 | Engine oil change prompt device |
| CN201953434U (en) * | 2011-01-04 | 2011-08-31 | 浙江吉利汽车研究院有限公司 | Engine sump tank capable of insulating sound and reducing noise |
Non-Patent Citations (4)
| Title |
|---|
| ROMAN M. BALABIN, ETC.: "Motor oil classification by base stock and viscosity based on near infrared(NIR) spectroscopy data", 《FUEL》, vol. 87, no. 12, 30 September 2008 (2008-09-30), pages 2745 - 2752 * |
| 张晓飞，等: "基于电介质介电常数测量的油液在线监测技术研究", 《传感技术学报》, vol. 21, no. 12, 20 December 2008 (2008-12-20), pages 2088 - 2091 * |
| 郑永真等: "汽车发动机机油性能检测仪的研究与设计", 《中国汽车工程学会燃料与润滑油分会第十四届年会论文集》, 11 August 2010 (2010-08-11) * |
| 陈孝震，等: "汽车发动机机油质量性能检测仪", 《现代制造工程》, no. 5, 18 May 2010 (2010-05-18) * |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104792973A (en) * | 2015-04-21 | 2015-07-22 | 西南石油大学 | Detection device and detection method for estimating vehicle-mounted engine oil life |
| CN104897880A (en) * | 2015-06-18 | 2015-09-09 | 洛阳大工检测技术有限公司 | In-use portable multi-parameter lubricating oil detector |
| CN105954146A (en) * | 2016-06-14 | 2016-09-21 | 中国人民解放军装甲兵工程学院 | Portable multifunctional comprehensive oil liquid tester |
| CN107228836A (en) * | 2017-05-30 | 2017-10-03 | 武汉材料保护研究所 | The infrared spectrum on-line testing method of lubricating oil high-temp friction process |
| CN107288704A (en) * | 2017-08-04 | 2017-10-24 | 宁夏中益康键科技有限公司 | Non-maintaining oil filter |
| CN108152478A (en) * | 2017-11-21 | 2018-06-12 | 浙江众邦机电科技有限公司 | A kind of sewing machine oil quality monitoring system |
| CN109184853A (en) * | 2018-09-19 | 2019-01-11 | 中北大学 | The automatic metering controller of automobile engine oil |
| CN109184853B (en) * | 2018-09-19 | 2020-12-25 | 中北大学 | Automatic measuring and controlling device for automobile engine oil |
| CN111239057A (en) * | 2020-01-20 | 2020-06-05 | 通标标准技术服务有限公司 | Gasoline and diesel quality detection system |
| CN111239057B (en) * | 2020-01-20 | 2022-09-27 | 通标标准技术服务有限公司 | Gasoline and diesel quality detection system |
| CN114088607A (en) * | 2021-10-25 | 2022-02-25 | 北京京能能源技术研究有限责任公司 | Online monitoring method for fan gear box |
| CN114137041A (en) * | 2021-11-18 | 2022-03-04 | 西南石油大学 | Automatic detection device for foam of gas production by foam discharge at well mouth |
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Application publication date: 20121219 |