CN108387295A - A kind of quick detection device of grease liquid level temperature-density synthesis - Google Patents
A kind of quick detection device of grease liquid level temperature-density synthesis Download PDFInfo
- Publication number
- CN108387295A CN108387295A CN201810251622.XA CN201810251622A CN108387295A CN 108387295 A CN108387295 A CN 108387295A CN 201810251622 A CN201810251622 A CN 201810251622A CN 108387295 A CN108387295 A CN 108387295A
- Authority
- CN
- China
- Prior art keywords
- grease
- liquid level
- detection device
- quick detection
- density
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- G01F23/296—Acoustic waves
- G01F23/2962—Measuring transit time of reflected waves
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
- G01N9/10—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by observing bodies wholly or partially immersed in fluid materials
- G01N9/12—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by observing bodies wholly or partially immersed in fluid materials by observing the depth of immersion of the bodies, e.g. hydrometers
- G01N9/14—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by observing bodies wholly or partially immersed in fluid materials by observing the depth of immersion of the bodies, e.g. hydrometers the body being built into a container
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K2219/00—Thermometers with dedicated analog to digital converters
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Acoustics & Sound (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- Level Indicators Using A Float (AREA)
Abstract
The invention discloses a kind of grease liquid level temperature-densities to integrate quick detection device, including throw-in type integrated sensor, display and control terminal and the signal and power transmission medium that connect throw-in type integrated sensor and display and control terminal；The throw-in type integrated sensor includes the buoy platform and grease proofing rangefinder being integrated on buoy platform, anti-oil temperature sensor and density measuring equipment, when use, throw-in type integrated sensor is put into from oil tank sample tap inside oil tank, throw-in type integrated sensor floats on pasta and disposably measures grease liquid level, temperature and density, display and control terminal can show testing result, it can be achieved that supervision unit quickly detects grease quality and quantity in oil tank when taking an inventory of warehouses.
Description
Technical field
The present invention relates to grain storages and supervision area, are more particularly to a kind of grease liquid level temperature-density synthesis quickly inspection
Measurement equipment.
Background technology
National grain and oil deposit is a grand strategy for being related to national economic development, and the work of grain and oil deposit at present is all logical
National consignable company is crossed to carry out.To ensure that the quantity of grain and oil deposit is accurate, requisite quality, national grain and oil supervision department needs every year
A large amount of manpower and materials are spent to carry out work of taking an inventory of warehouses to the enterprise of each commission deposit.
In the examination of deposit grease, the detection method formality of grease quality and quantity is cumbersome at present, spends the time long,
Official reserves grease quantity is more, distribution is wide and human hand it is limited on the basis of be difficult to meet needs.Grease examination detects in the process
Major parameter is liquid level, density and temperature, and the quantity that deposit grease can be pushed away according to these three parameters is quality.Level gauging at present
The method generally detected manually using ruler of buying oil；Density and temperature are measured utilizes penetron and temperature using after sampling, mixing
The method of degree meter detection.One oil tank of detection needs to carry the plurality of devices such as ruler, density tester, thermometer, sampler of buying oil,
Spend the time at 1 more than hour.
A kind of detection device of rapid and handy is badly in need of in national grain and oil supervision department, realizes the fast of deposit grease quality and quantity
Speed detection mitigates person works' amount of taking an inventory of warehouses.
Invention content
Technical problem to be solved by the present invention lies in the quick inspections for how realizing deposit grease liquid level, density and temperature
It surveys.
The present invention is to solve above-mentioned technical problem by the following technical programs：
A kind of grease liquid level temperature-density integrate quick detection device, including throw-in type integrated sensor, display and control terminal with
And the signal and power transmission medium of connection throw-in type integrated sensor and display and control terminal；
The throw-in type integrated sensor includes buoy platform and the grease proofing rangefinder being integrated on buoy platform, grease proofing
Temperature sensor and density measuring equipment, the density measuring equipment include densitometer and non-contact displacement transducer, institute
It states the sealing duct that densitometer includes bottom belt weight and the displacement mark being arranged on sealing duct, the sealing duct is set
It sets on buoy platform, and is moved up and down along buoy platform, the non-contact displacement transducer is arranged on buoy platform, and
Positioned at within displacement mark sphere of action, the non-contact displacement transducer is that magnetic displacement sensor or photoelectric displacement sense
Device, the displacement mark mutually should be magnetic label or optical label, and the rangefinder, temperature sensor and weight are arranged at buoy
Mesa base；
The signal and power transmission medium include grease proofing rangefinder, anti-oil temperature sensor and density measuring equipment
All signal wires and power cord, the length of the transmission medium are more than the height of measured oil tank.
Further, the grease proofing rangefinder is arranged in buoy mesa base centre.
Further, the grease proofing rangefinder is grease proofing sonar rangefinder.
Further, the anti-oil temperature sensor is grease proofing analog or digital temperature sensor.
Further, the sealing duct runs through buoy platform, and the sealing duct is moved along through hole, described non-contact
Formula displacement sensor is arranged at hole wall.
Further, it is provided with limit protrusion at the top of the sealing duct, the sealing duct is limited by limit protrusion
In through hole.
Further, the display and control terminal is hand-held display terminal.
Further, the hand-held display terminal is industrial control tablet computer or has input and show the microcontroller system of peripheral hardware
System.
Further, the signal and power transmission medium are connect by buoy platform interior with display and control terminal.
Further, the buoy platform is cylindrical shape float.
The present invention has the following advantages compared with prior art：
The present invention can disposably realize grease liquid level, the equipment of three parameter detectings of temperature and density, have portability and
Rapidity feature directly measures pasta to the distance of tank bottom, the level value provided is compared to thunder wherein grease proofing rangefinder immerses pasta
Up to tank gage or normal ultrasound waves tank gage measurement tank deck to the distance of liquid level, the level value extrapolated further according to tank body height
More convincingness, grease temperature and density measure online, and the grease temperature and density measured than conventional method sampling is more
Close to actual conditions；Throw-in type integrated sensor is put into from oil tank sample tap inside oil tank when use, throw-in type is integrated to be passed
Sensor floats on pasta and disposably measures grease liquid level, temperature and density, and display and control terminal can show testing result, it can be achieved that supervision
Grease quality and quantity in oil tank is quickly detected when unit is taken an inventory of warehouses, each oil tank detection time is small from pervious one
When more than foreshorten within 10 minutes, equipment is easily carried to oil tank top.Equipment interoperability is strong, and detection process only needs to open
Sample tap adapts to the oil tank of various diameters, height and type.
Description of the drawings
Fig. 1 is that a kind of grease liquid level temperature-density of the embodiment of the present invention integrates quick assay device structures schematic diagram；
Fig. 2 is that a kind of grease liquid level temperature-density of the embodiment of the present invention integrates density measuring equipment in quick detection device
Structural schematic diagram.
Wherein：11, cylindrical shape float；111, through hole；12, grease proofing sonar rangefinder；13, anti-oil temperature sensor；
14, densitometer；141, sealing duct；142, weight；143, displacement mark；144, limit protrusion；15, contactless displacement senses
Device；2, display terminal；3, signal and power transmission medium；31, harness.
Specific implementation mode
It elaborates below to the embodiment of the present invention, the present embodiment is carried out lower based on the technical solution of the present invention
Implement, gives detailed embodiment and specific operating process, but protection scope of the present invention is not limited to following implementation
Example.
Embodiment
As shown in Figure 1, it includes throw-in type collection that a kind of grease liquid level temperature-density of the present embodiment, which integrates quick detection device,
At sensor 1, the signal and power transmission medium 3 of display terminal 2 and connection throw-in type integrated sensor 1 and display and control terminal 2；
The throw-in type integrated sensor 1 includes cylindrical shape float 11 and is integrated in anti-on cylindrical shape float 11
Oily sonar rangefinder 12, anti-oil temperature sensor 13 and density measuring equipment, the density measuring equipment include densitometer 14
With non-contact displacement transducer 15, the densitometer 14 is the sealing duct 141 of bottom belt weight 142, on sealing duct 141
End is arranged inside cylindrical shape float 11, and 14 upper end of the densitometer can be moved up and down along cylindrical shape float 11, described non-
Tangent displacement sensor 15 is arranged inside cylindrical shape float 11, and distance is moved up and down for measuring densitometer 14, described
The bottom of grease proofing sonar rangefinder 12, anti-oil temperature sensor 13 and densitometer 14 is arranged at 11 bottom of cylindrical shape float
Portion；
The signal and power transmission medium 3 include grease proofing sonar rangefinder 12, anti-oil temperature sensor 13 and density
All signal wires and power cord of measuring device, the signal and power transmission medium 3 pass through cylindrical shape float 11, in harness
Beam is closed under the action of 31, and connects and holds display terminal 2, and the length of the transmission medium 3 is more than the height of measured oil tank.
Hand-held display terminal 2 reads the liquid level, the temperature that are detected in throw-in type integrated sensor 1 by signal transmission medium
And density data, and it is shown to testing staff, grease quantity in tank can directly be calculated by manually entering tank diameter.Institute
Hand-held display terminal 2 is stated to power to hand-held display terminal 2 and throw-in type integrated sensor 1 equipped with chargeable battery, it is described hand-held aobvious
Show that terminal 2 can be a common industrial control tablet computer or the simpler microcontroller system for having input and showing peripheral hardware
System.
Grease proofing sonar rangefinder 12 for level sensing is mounted on 11 bottom centre of cylindrical shape float, throw-in type collection
Grease proofing sonar rangefinder 12 enters in oil after immersing pasta at sensor 1, and grease proofing sonar rangefinder 12 emits ultrasonic wave simultaneously
Echo is detected, according to transmitted wave and detects that the liquid level of grease can be calculated in the time difference of echo.Wherein grease proofing sonar ranging
Instrument 12 immerses pasta, directly measures pasta to the distance of tank bottom, the level value provided is compared to radar level gauge or ordinary ultrasonic
Wave tank gage measures tank deck to the distance of liquid level, and the level value extrapolated further according to tank body height has more convincingness.
Using the characteristic of ultrasonic wave low decaying in oil, it is real that the lower sonar rangefinder of transmission power can be used in the present embodiment
Range measurement in existing 30 meters of oil.
Anti- oil temperature sensor 13 is mounted on 11 bottom of cylindrical shape float appointing other than grease proofing sonar rangefinder 12
Meaning position, anti-oil temperature sensor 13 is the common analog or digital temperature sensor in the market Jing Guo anti-oil processing.
For densitometer 14 using the principle of mother-in-law's plum densitometer, common mother-in-law plum densitometer is a sealed glass tube with weight,
In the liquid of different densities, fluid density can be measured according to the depth naked eyes reading that densitometer immerses.The present embodiment is due to density
It is located in oil tank when meter measures, can not visually sees, therefore carries out the survey of immersion depth using non-contact displacement transducer 15
Amount, concrete structure is as shown in Fig. 2, densitometer 14 is the sealing duct 141 of bottom belt weight 142, and wherein sealing duct 141 can
It is made of grass tube, stainless steel tube or plastic tube, the sealing duct 141 is mounted in cylindrical shape float 11 up and down
In a perforative through hole 111, can freely up and down it be moved in through hole 111.To prevent densitometer 14 to be detached from cylindrical shape
Float 11,141 top of sealing duct are provided with limit protrusion 144, and the sealing duct 141 is limited to by limit protrusion 144
In through hole 111.Displacement mark 143 is installed on sealing duct 141, is used for the measurement of immersion depth.In cylindrical shape float 11
Embedded non-contact displacement transducer 15 on interior 111 wall of through hole, non-contact displacement transducer 15 is close to displacement mark
143, and positioned at in 143 sphere of action of displacement mark, wherein non-contact displacement transducer 15 is magnetic displacement sensor or light
Electric displacement sensor, corresponding displacement mark 143 are then magnetic label or optical label.The integrated sensing of the throw-in type of the present embodiment
The immersion of the acquisition of information densitometer 14 for the displacement signal 143 that device 1 is read according to non-contact displacement transducer 15 in the oil
Depth, to accurately measure grease density.
The anti-oil temperature sensor 13 and densitometer 14 of the present embodiment are the grease temperature and density measured online, than normal
Rule method samples the grease temperature measured and density closer to actual conditions.
Throw-in type integrated sensor 1 is put into from oil tank sample tap inside oil tank when use, throw-in type integrated sensor 1
It floats on pasta disposably to measure grease liquid level, temperature and density, hand-held display terminal 2 can show testing result.The equipment can
Realize that supervision unit quickly detects grease quality and quantity in oil tank when taking an inventory of warehouses, by each oil tank detection time from former
One more than hour foreshorten within 10 minutes.Machine weight is less than 5kg, is easily carried to oil tank top.Equipment is logical
Strong with property, detection process need to only open sample tap, adapt to the oil tank of various diameters, height and type.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement etc., should all be included in the protection scope of the present invention made by within refreshing and principle.
Claims (10)
1. a kind of grease liquid level temperature-density integrates quick detection device, which is characterized in that including throw-in type integrated sensor, show
Control terminal and the signal and power transmission medium for connecting throw-in type integrated sensor and display and control terminal；
The throw-in type integrated sensor includes buoy platform and the grease proofing rangefinder being integrated on buoy platform, anti-oil temperature
Sensor and density measuring equipment, the density measuring equipment include densitometer and non-contact displacement transducer, described close
Degree counts the displacement mark for including the sealing duct of bottom belt weight and being arranged on sealing duct, and the sealing duct setting exists
It on buoy platform, and is moved up and down along buoy platform, the non-contact displacement transducer is arranged on buoy platform, and is located at
Within displacement mark sphere of action, the non-contact displacement transducer be magnetic displacement sensor or photoelectric displacement sensor,
The displacement mark mutually should be magnetic label or optical label, and it is flat that the rangefinder, temperature sensor and weight are arranged at buoy
Platform bottom；
The signal and power transmission medium include all of grease proofing rangefinder, anti-oil temperature sensor and density measuring equipment
Signal wire and power cord, the length of the transmission medium are more than the height of measured oil tank.
2. a kind of grease liquid level temperature-density according to claim 1 integrates quick detection device, which is characterized in that described
Grease proofing rangefinder is arranged in buoy mesa base centre.
3. a kind of grease liquid level temperature-density according to claim 1 or 2 integrates quick detection device, which is characterized in that
The grease proofing rangefinder is grease proofing sonar rangefinder.
4. a kind of grease liquid level temperature-density according to claim 1 integrates quick detection device, which is characterized in that described
Anti- oil temperature sensor is grease proofing analog or digital temperature sensor.
5. a kind of grease liquid level temperature-density according to claim 1 integrates quick detection device, which is characterized in that described
Sealing duct runs through buoy platform, and the sealing duct is moved along through hole, and the non-contact displacement transducer setting is being passed through
At perforated wall.
6. a kind of grease liquid level temperature-density according to claim 5 integrates quick detection device, which is characterized in that described
It is provided with limit protrusion at the top of sealing duct, the sealing duct is limited to by limit protrusion in through hole.
7. a kind of grease liquid level temperature-density according to claim 1 integrates quick detection device, which is characterized in that described
Display and control terminal is hand-held display terminal.
8. a kind of grease liquid level temperature-density according to claim 7 integrates quick detection device, which is characterized in that described
Hand-held display terminal is industrial control tablet computer or has input and show the SCM system of peripheral hardware.
9. a kind of grease liquid level temperature-density according to claim 1 integrates quick detection device, which is characterized in that described
Signal and power transmission medium are connect by buoy platform interior with display and control terminal.
10. a kind of grease liquid level temperature-density according to claims 1 or 2 or 9 integrates quick detection device, feature exists
In the buoy platform is cylindrical shape float.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810251622.XA CN108387295A (en) | 2018-03-26 | 2018-03-26 | A kind of quick detection device of grease liquid level temperature-density synthesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810251622.XA CN108387295A (en) | 2018-03-26 | 2018-03-26 | A kind of quick detection device of grease liquid level temperature-density synthesis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108387295A true CN108387295A (en) | 2018-08-10 |
Family
ID=63072204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810251622.XA Pending CN108387295A (en) | 2018-03-26 | 2018-03-26 | A kind of quick detection device of grease liquid level temperature-density synthesis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108387295A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109283093A (en) * | 2018-10-31 | 2019-01-29 | 四川泛华航空仪表电器有限公司 | A kind of density sensor high temperature performance testing equipment |
| CN111855486A (en) * | 2020-06-29 | 2020-10-30 | 广西壮族自治区森林资源与生态环境监测中心 | Device and method for automatically measuring liquid density |
| WO2021038593A1 (en) * | 2019-08-27 | 2021-03-04 | Logichive Solutions Private Limited | System and method for automatically determining and digitally rendering density of liquid |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2695924Y (en) * | 2003-08-07 | 2005-04-27 | 范明军 | Level meter |
| CN1746631A (en) * | 2004-09-10 | 2006-03-15 | 高轶群 | On-line inspection system of oil-storage tank level and oil-products density |
| CN2921824Y (en) * | 2005-10-25 | 2007-07-11 | 李鉴 | On-line detecting liquid density digital sensing transmitter |
| JP2012002618A (en) * | 2010-06-16 | 2012-01-05 | Tatsuno Corp | Liquid level measuring device with density measuring function |
| CN102778254A (en) * | 2011-05-11 | 2012-11-14 | 北京航天金泰星测技术有限公司 | On-line liquid detection device and density calibration system and density calibration method thereof |
| CN103487113A (en) * | 2013-09-25 | 2014-01-01 | 无锡俊达测试技术服务有限公司 | River channel water depth monitoring device |
| CN105424139A (en) * | 2015-11-05 | 2016-03-23 | 河海大学 | Underground water level seal measuring device and method based on ultrasonic negative pressure |
| CN105806272A (en) * | 2016-05-30 | 2016-07-27 | 北京交通大学 | Device for measuring scouring depth of pier downstream river bed |
| CN106044890A (en) * | 2016-07-22 | 2016-10-26 | 云南电网有限责任公司曲靖供电局 | Intelligent water collecting device |
-
2018
- 2018-03-26 CN CN201810251622.XA patent/CN108387295A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2695924Y (en) * | 2003-08-07 | 2005-04-27 | 范明军 | Level meter |
| CN1746631A (en) * | 2004-09-10 | 2006-03-15 | 高轶群 | On-line inspection system of oil-storage tank level and oil-products density |
| CN2921824Y (en) * | 2005-10-25 | 2007-07-11 | 李鉴 | On-line detecting liquid density digital sensing transmitter |
| JP2012002618A (en) * | 2010-06-16 | 2012-01-05 | Tatsuno Corp | Liquid level measuring device with density measuring function |
| CN102778254A (en) * | 2011-05-11 | 2012-11-14 | 北京航天金泰星测技术有限公司 | On-line liquid detection device and density calibration system and density calibration method thereof |
| CN103487113A (en) * | 2013-09-25 | 2014-01-01 | 无锡俊达测试技术服务有限公司 | River channel water depth monitoring device |
| CN105424139A (en) * | 2015-11-05 | 2016-03-23 | 河海大学 | Underground water level seal measuring device and method based on ultrasonic negative pressure |
| CN105806272A (en) * | 2016-05-30 | 2016-07-27 | 北京交通大学 | Device for measuring scouring depth of pier downstream river bed |
| CN106044890A (en) * | 2016-07-22 | 2016-10-26 | 云南电网有限责任公司曲靖供电局 | Intelligent water collecting device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109283093A (en) * | 2018-10-31 | 2019-01-29 | 四川泛华航空仪表电器有限公司 | A kind of density sensor high temperature performance testing equipment |
| WO2021038593A1 (en) * | 2019-08-27 | 2021-03-04 | Logichive Solutions Private Limited | System and method for automatically determining and digitally rendering density of liquid |
| CN111855486A (en) * | 2020-06-29 | 2020-10-30 | 广西壮族自治区森林资源与生态环境监测中心 | Device and method for automatically measuring liquid density |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202916242U (en) | Flow pattern online monitoring device for gas-liquid two-phase flow | |
| CN106289454B (en) | Liquid level meter measuring ruler and liquid level meter calibration method applying same | |
| CN108387295A (en) | A kind of quick detection device of grease liquid level temperature-density synthesis | |
| CN102109333B (en) | Small-curvature radius complex curved surface intelligent ultrasonic thickness measurement system | |
| CN106404104A (en) | High-precision liquid level detection device | |
| CN103808624A (en) | Wood moisture content detection method based on radar waves | |
| CN106932055A (en) | A kind of High Precision Automatic sampling calibration ultrasonic solution level monitoring system | |
| CN103884401B (en) | The detection means of optical fiber oil water surface and detection method | |
| CN208847298U (en) | A kind of liquidometer automatic calibrator | |
| US9234828B2 (en) | Free floating tilt hydrometer | |
| CN202133430U (en) | Three-dimensional laser scan based large volume measurement equipment with high precision | |
| CN208333626U (en) | A kind of New fluid level gauge calibrating installation | |
| CN207946139U (en) | A kind of quick detection device of grease liquid level temperature-density synthesis | |
| CN101650359A (en) | Coal caloric value soft measuring method based on knowledge fusion machine learning algorithm | |
| CN111693109A (en) | Multifunctional storage tank liquid level meter | |
| CN217931498U (en) | Crude oil water content detection cylinder and detection system | |
| CN207423789U (en) | A kind of liquid transparency detection device | |
| CN206375236U (en) | Liquid level display device for oil storage tank | |
| CN205909901U (en) | Liquid level gauge chi | |
| CN204964791U (en) | Anticorrosive type hyetometer | |
| CN106441491B (en) | The level gauging method for visualizing big tank liquid level metering device and being realized using the device | |
| CN206804112U (en) | A kind of High Precision Automatic sampling calibration ultrasonic solution level monitoring system | |
| CN206450291U (en) | Capacitance type sensor liquid level detection device | |
| CN206479230U (en) | A kind of contact-free level monitoring device | |
| CN215640696U (en) | Portable silt monitor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |