CN106950150A - Liquid density measurement device and method - Google Patents
Liquid density measurement device and method Download PDFInfo
- Publication number
- CN106950150A CN106950150A CN201710180330.7A CN201710180330A CN106950150A CN 106950150 A CN106950150 A CN 106950150A CN 201710180330 A CN201710180330 A CN 201710180330A CN 106950150 A CN106950150 A CN 106950150A
- Authority
- CN
- China
- Prior art keywords
- measured
- fluid
- pressure
- liquid
- liquid container
- 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
- 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
Abstract
The invention discloses a kind of liquid density measurement device and method.The device can include：Liquid container, the top of liquid container is provided with inlet, for containing quantity of fluid to be measured；Electronic balance, the quality for measuring liquid container；Pressure measurement cell, is arranged at liquid container wall portion, the pressure for measuring quantity of fluid to be measured；Temperature measurement unit, the temperature for measuring quantity of fluid to be measured；Pressure is adjusted and volume sensing unit, for adjusting the pressure of quantity of fluid to be measured, and measures the volume of quantity of fluid to be measured.The present invention realizes the measurement of fluid density at various pressures, and then realize the calibration to the different pressures lower density meter degree of accuracy by setting up pressure regulation and volume sensing unit.
Description
Technical field
The present invention relates to metering field, more particularly, to a kind of liquid density measurement device and method.
Background technology
In the calibrating installation of Liquid density instrument, existing method is to use the container under condition of normal pressure, utilizes high accuracy
The density of the glass tube densimeter measurement liquid of indexing, with this measurement value calibration densitometer.However, due to glass tube densimeter
It can only be used under normal pressure, this method can not calibrate the degree of accuracy of the densitometer under different pressures, it is impossible to provide different pressures
The calibration parameter of the lower density meter degree of accuracy.Therefore, it is necessary to develop a kind of liquid density measurement device and method.
The information for being disclosed in background of invention part is merely intended to deepen the reason of the general background technology to the present invention
Solution, and be not construed as recognizing or imply known to those skilled in the art existing of the information structure in any form
Technology.
The content of the invention
The present invention proposes a kind of liquid density measurement device and method, and it can be examined by setting up pressure regulation with volume
Unit is surveyed, the measurement of fluid density at various pressures is realized, and then realize the calibration to the different pressures lower density meter degree of accuracy.
According to an aspect of the invention, it is proposed that a kind of liquid density measurement device, described device includes：Liquid container,
The top of the liquid container is provided with inlet, for containing quantity of fluid to be measured；Electronic balance, for measuring the liquid container
Quality；Pressure measurement cell, is arranged at the liquid container wall portion, the pressure for measuring the quantity of fluid to be measured；Temperature
Measuring unit, is arranged at the liquid container, the temperature for measuring the quantity of fluid to be measured；Pressure is adjusted to be examined with volume
Unit is surveyed, for adjusting the pressure of the quantity of fluid to be measured, and the volume of the quantity of fluid to be measured is measured.
In one example, the pressure regulation includes with volume sensing unit：Surge pipe, connects with the liquid container
It is logical；Pressure regulation swing arm, can be in the pressure regulation in-pipe, so that it is described to adjust to compress the quantity of fluid to be measured in the surge pipe
The pressure of quantity of fluid to be measured.
In one example, the surge pipe is marked with scale.
In one example, the pressure regulation also includes mechan-amplifier module and scale with volume sensing unit, described
Mechan-amplifier module is lever construction, and the fulcrum of the lever construction is located at fixed position, and one end of the lever construction is connected
To the pressure regulation swing arm, the scale is used for the displacement for measuring the other end of the lever construction.
In one example, the surge pipe upper end is provided with stopping means, the movement for limiting the pressure regulation swing arm
Scope.
In one example, air bleeding valve is provided with the surge pipe, for discharging the gas in the surge pipe.
According to another aspect of the invention, it is proposed that a kind of liquid density measurement method.Methods described can include：In note
Enter before quantity of fluid to be measured, the quality m with volume sensing unit is adjusted with electronics balance measurement liquid container and pressurenet；Pass through
Quantity of fluid to be measured is injected the liquid container by inlet, until quantity of fluid to be measured is full of the liquid container, is entered described in closing
Liquid mouthful, records the volume V of the quantity of fluid to be measured of injection0；The temperature T of the quantity of fluid to be measured is measured by temperature measurement unit；
Liquid container and pressure regulation and the quality m of volume sensing unit after the measurement injection quantity of fluid to be measuredgross, calculate described
The quality m of quantity of fluid to be measured；Pressure regulation swing arm is moved down, the inside of the quantity of fluid to be measured is then measured by pressure measurement cell
Pressure P；The displacement △ h of the other end of lever construction are read by scale, the volume V of the quantity of fluid to be measured is calculatedPT；Base
In the volume V of the quantity of fluid to be measuredPTWith quality m, the liquid to be measured under the temperature T and the internal pressure P is calculated
The density p of body.
In one example, the quality of the quantity of fluid to be measured is：
M=mgross-mnet (1)。
In one example, the volume V of the quantity of fluid to be measuredPTFor：
VPT=V0-△h·s/a (2)
Wherein, s represents the cross-sectional area of the surge pipe, and a represents the amplification ratio of the lever construction.
In one example, the density of the quantity of fluid to be measured is：
ρ=m/VPT (3)。
Methods and apparatus of the present invention has other characteristics and advantage, and these characteristics and advantage are attached from what is be incorporated herein
It will be apparent in figure and subsequent embodiment, or by the accompanying drawing being incorporated herein and subsequent specific reality
Apply in mode and stated in detail, these the drawings and specific embodiments are provided commonly for explaining the certain principles of the present invention.
Brief description of the drawings
By the way that exemplary embodiment of the invention is described in more detail with reference to accompanying drawing, it is of the invention above-mentioned and its
Its purpose, feature and advantage will be apparent, wherein, in exemplary embodiment of the invention, identical reference number
Typically represent same parts.
Fig. 1 shows the schematic diagram of liquid density measurement device according to an embodiment of the invention.
Fig. 2 shows pressure regulation according to an embodiment of the invention and the schematic diagram of volume sensing unit.
Fig. 3 shows the flow chart of the liquid density measurement method according to the present invention.
Description of reference numerals：
1st, electronic balance；2nd, liquid container；3rd, pressure measurement cell；4th, temperature measurement unit；5th, pressure regulation and volume
Detection unit；501st, surge pipe；502nd, pressure regulation swing arm；503rd, mechan-amplifier module；504th, scale.
Embodiment
The present invention is more fully described below with reference to accompanying drawings.Although showing the side of being preferable to carry out of the present invention in accompanying drawing
Formula, however, it is to be appreciated that may be realized in various forms the present invention without that should be limited by embodiments set forth herein.Phase
Instead there is provided these embodiments be in order that the present invention is more thorough and complete, and can be by the scope of the present invention intactly
Convey to those skilled in the art.
Fig. 1 shows the schematic diagram of liquid density measurement device according to an embodiment of the invention.
As shown in figure 1, embodiments in accordance with the present invention are there is provided a kind of liquid density measurement device, described device can be with
Including：Liquid container 2, the top of liquid container 2 is provided with inlet, for containing quantity of fluid to be measured；Electronic balance 1, for surveying
The quality of quantity of fluid container 2；Pressure measurement cell 3, is arranged at the wall portion of liquid container 2, the pressure for measuring quantity of fluid to be measured；
Temperature measurement unit 4, is arranged inside liquid container 2, the temperature for measuring quantity of fluid to be measured；Pressure is adjusted to be detected with volume
Unit 5, for adjusting the pressure of quantity of fluid to be measured, and measures the volume of quantity of fluid to be measured.
Specifically, liquid injection port (not shown) is provided with liquid container 2, for injecting liquid to be measured into liquid container 2
Body；Liquid container 2 is sealed during due to measurement, the change measure of fluid pressure to be measured is not pressurised power measuring unit 3
The influence of position height, therefore, pressure measurement cell 3 can be arranged at the position of the wall portion arbitrary height of liquid container 2.
The embodiment realizes the survey of fluid density at various pressures by setting up pressure regulation and volume sensing unit 5
Amount, and then the calibration to the different pressures lower density meter degree of accuracy can be realized.
In one example, pressure regulation includes with volume sensing unit 5：Surge pipe 501, is connected with liquid container 2；Adjust
Swing arm 502 is pressed, can be moved in surge pipe 501, so as to compress the quantity of fluid to be measured in surge pipe 501 to adjust liquid to be measured
The pressure of body.It will be understood by those skilled in the art that in order to compress to be measured in surge pipe 501 by pressure regulation swing arm 502
Quantity of fluid, the bottom of pressure regulation swing arm 502 is screw piston, and surrounding sets sealing ring, makes the piston and surge pipe of pressure regulation swing arm 502
501 inner wall sealing coordinates, and thereby may be ensured that quantity of fluid to be measured will not be by between pressure regulation swing arm 502 and surge pipe 501
Flow out in gap.
In one example, surge pipe 501 is marked with scale.
In one example, pressure regulation also includes mechan-amplifier module 503 and scale 504, machine with volume sensing unit 5
Tool amplification module 503 is lever construction, and the fulcrum of lever construction is located at fixed position, and one end of lever construction is connected to pressure regulation rotation
Bar 502, scale 504 is used for the displacement for measuring the other end of lever construction.
In one example, the upper end of surge pipe 501 is provided with stopping means, the mobile model for limiting pressure regulation swing arm 502
Enclose.
In one example, air bleeding valve is provided with surge pipe 501, for discharging the gas in surge pipe 501.
Fig. 2 shows the schematic diagram adjusted according to the pressure of an embodiment of the invention with volume sensing unit 5.
Specifically, surge pipe 501 is hollow " L " shape bend pipe, and bottom is connected with liquid container 2, and is passed through with liquid container 2
Connecting rod is fixedly connected.Surge pipe 501 is marked with scale, and the scale can be length value, when pressure regulation swing arm 502 is in surge pipe
When being moved in 501, the displacement of pressure regulation swing arm 502 can be skimed out；The scale can also be bulking value, can skim out surge pipe
The volume of quantity of fluid to be measured in 501.The upper end of surge pipe 501 can be provided with stopping means (not shown), in injection process,
Pressure regulation swing arm 502 is moved to the bottom of surge pipe 501 first, after liquid level is higher than 501 lower surface of surge pipe, above carried
Pressure regulation swing arm 502 makes liquid inject in surge pipe 501, and stopping means is arranged at the upper end of surge pipe 501, for limiting pressure regulation swing arm
502 movings range；Air bleeding valve (not shown) can also be provided with surge pipe 501, for discharging the gas in surge pipe 501
Body, so as to so that liquid is full of surge pipe 501.
The front end of pressure regulation swing arm 502 can be screw piston, and surrounding sets sealing ring, and its diameter is interior with surge pipe 501
Footpath is equal, the piston of pressure regulation swing arm 502 is coordinated with the inner wall sealing of surge pipe 501, and can back and forth be moved in surge pipe 501
It is dynamic, so as to compress the quantity of fluid to be measured in surge pipe 501 to adjust the pressure of quantity of fluid to be measured, and it can guarantee that quantity of fluid to be measured not
It can be flowed out by the gap between pressure regulation swing arm 502 and surge pipe 501.
Mechan-amplifier module 503 is lever construction, and the fulcrum of lever construction is arranged at fixed position, and lever construction can be around branch
Point rotation, one end of lever construction is connected to pressure regulation swing arm 502, and the other end is pointer, points to scale 504, and scale 504 is marked with
Scale, the displacement of the other end for measuring lever construction, and then calculate the exact volume of quantity of fluid to be measured.
Fig. 3 shows the flow chart of the liquid density measurement method according to the present invention.
It can be included according to the liquid density measurement method of the present invention：Step 101, before quantity of fluid to be measured is injected, use
Electronic balance 1 measures liquid container 2 and pressure regulation and the quality m of volume sensing unit 5net；Step 102, inlet is passed through
Quantity of fluid to be measured is injected liquid container 2 by (not shown), until the hydraulically full container 2 of quantity of fluid to be measured, closes inlet, record
The volume V of the quantity of fluid to be measured of injection0, in order to obtain volume V0, can be after manufacture liquid container 2, with regard to the appearance of liquid container 2
Product carries out high-precision measurement, measures the volumetric values of liquid container 2 (including surge pipe 501), the body of quantity of fluid as to be measured
Product V0, or quantity of fluid to be measured can also be injected into liquid container 2 by high-precision measuring cup, so also can easily it determine
Volume V0；Step 103, the temperature T of quantity of fluid to be measured is measured by temperature measurement unit 4；Step 104, measurement injection is to be measured
Liquid container 2 and pressure regulation and the quality m of volume sensing unit 5 after liquidgross, calculate the quality m of quantity of fluid to be measured；Step
Rapid 105, pressure regulation swing arm 502 is moved down, the internal pressure P of quantity of fluid to be measured is then measured by pressure measurement cell 3；Step
106, the displacement △ h of one end not being connected with pressure regulation swing arm 502 of lever construction are read by scale 504, liquid to be measured is calculated
The volume V of bodyPT；And step 107, the volume V based on quantity of fluid to be measuredPTWith quality m, calculate in temperature T and internal pressure P
Under quantity of fluid to be measured density p.
The embodiment realizes fluid density at various pressures by setting up pressure regulation and volume sensing unit 5
Measurement, and then realize the calibration to the different pressures lower density meter degree of accuracy.
In one example, the quality of quantity of fluid to be measured is：
M=mgross-mnet (1)
In one example, the volume V of quantity of fluid to be measuredPTFor：
VPT=V0-△h·s/a (2)
Wherein, s represents the cross-sectional area of surge pipe 501, and a represents the amplification ratio of lever construction.Those skilled in the art can
To understand, amplification ratio a can be expressed as the length ratio of two arm of forces of lever construction, i.e. a=L1/L2, wherein L1Represent lever
The fulcrum of structure points to the distance between one end of scale, L with lever construction2Represent fulcrum and the lever construction of lever construction with
The distance between connected one end of pressure regulation swing arm 502.
In one example, the density of quantity of fluid to be measured is：
ρ=m/VPT (3)。
Specifically, before quantity of fluid to be measured is injected, liquid container 2 and pressure regulation and volume are measured with electronic balance 1
The quality m of detection unit 5net；Quantity of fluid to be measured is injected by liquid container 2 by liquid injection port, until quantity of fluid to be measured is hydraulically full
Container 2, closes liquid injection port, records the volume V of the quantity of fluid to be measured of injection0, meanwhile, measure to be measured by temperature measurement unit 4
The temperature T of quantity of fluid；Liquid container 2 and pressure regulation and the quality of volume sensing unit 5 after measurement injection quantity of fluid to be measured
mgross；By mgrossWith mnetSubstitute into formula (1), calculate the quality m for obtaining quantity of fluid to be measured.
Pressure regulation swing arm 502 is moved down, the internal pressure of quantity of fluid to be measured is increased, is then measured by pressure measurement cell 3
The internal pressure P of quantity of fluid to be measured；The displacement △ h of the outer end of lever construction are read by scale 504, based on surge pipe 501
Cross-sectional area s and lever construction amplification ratio a, △ h, s and a are substituted into formula (2) liquid to be measured calculated under current pressure
The volume V of bodyPT；By m and VPTBring into formula (3), calculate obtain Current Temperatures, quantity of fluid to be measured under current pressure it is close
Spend ρ.
Using example
For ease of understanding the scheme and its effect of embodiment of the present invention, a concrete application example given below.Ability
Field technique personnel should be understood that the example only for the purposes of understanding the present invention, and its any detail is not intended in any way
The limitation present invention.
The density of water under different pressures is measured by liquid density measurement device.
Before injection water, liquid container 2 and pressure regulation and the quality of volume sensing unit 5 are measured with electronic balance 1
mnetFor 0.2kg；Liquid container 2 is injected water into by inlet, until the hydraulically full container 2 of water, inlet, record note is closed
The volume V of the water entered0For 1.0017L, meanwhile, the temperature T that water is measured by temperature measurement unit 4 is 20 DEG C, is surveyed by pressure
The internal pressure for measuring the measurement water of unit 3 is 0.1MPa；Liquid container 2 and pressure regulation after measurement injection water detect single with volume
The quality m of member 5grossFor 1.2kg；By mgrossWith mnetSubstitute into formula (1), calculate and obtain the quality m of water for 1kg.
Pressure regulation swing arm 502 is moved down, the internal pressure of water is increased, the inside of water is then measured by pressure measurement cell 3
Pressure P is 0.2MPa；The displacement △ h that the outer end of lever construction is read by scale 504 are 0.2cm, the cross section of surge pipe 501
Product s is 0.5cm2, the amplification ratio a of lever construction is 10 times, and △ h, s and a are substituted into formula (2) to the water calculated under current pressure
Volume VPTFor 1.0016L；By m and VPTBring into formula (3), calculating 20 DEG C of acquisition, the density p of 0.2MPa water is
998.4kg/m3。
By being contrasted with available data, result above substantially conforms to standard.
In summary, this method by set up pressure regulation with volume sensing unit 5, be easy at various pressures liquid it is close
The measurement of degree, improves the degree of accuracy to different pressures lower density meter calibrating.
It is described above the embodiments of the present invention, described above is exemplary, and non-exclusive, and
It is also not necessarily limited to disclosed each embodiment.It is right in the case of without departing from the scope and spirit of illustrated each embodiment
Many modifications and changes will be apparent from for those skilled in the art.The choosing of term used herein
Select, it is intended to best explain the principle, practical application or the improvement to the technology in market of each embodiment, or make this technology
Other those of ordinary skill in field are understood that each embodiment disclosed herein.
Claims (10)
1. a kind of liquid density measurement device, including：
Liquid container, the top of the liquid container is provided with inlet, for containing quantity of fluid to be measured；
Electronic balance, the quality for measuring the liquid container；
Pressure measurement cell, is arranged at the liquid container wall portion, the pressure for measuring the quantity of fluid to be measured；
Temperature measurement unit, is arranged at the liquid container, the temperature for measuring the quantity of fluid to be measured；
Pressure is adjusted and volume sensing unit, for adjusting the pressure of the quantity of fluid to be measured, and measures the quantity of fluid to be measured
Volume.
2. liquid density measurement device according to claim 1, wherein, the pressure regulation and volume sensing unit bag
Include：
Surge pipe, is connected with the liquid container；
Pressure regulation swing arm, can be in the pressure regulation in-pipe, so as to compress the quantity of fluid to be measured in the surge pipe to adjust
State the pressure of quantity of fluid to be measured.
3. liquid density measurement device according to claim 2, wherein, the surge pipe is marked with scale.
4. liquid density measurement device according to claim 2, wherein, the pressure regulation is also wrapped with volume sensing unit
Mechan-amplifier module and scale are included, the mechan-amplifier module is lever construction, and the fulcrum of the lever construction is located at fixed bit
Put, one end of the lever construction is connected to the pressure regulation swing arm, and the scale is used for the other end for measuring the lever construction
Displacement.
5. liquid density measurement device according to claim 2, wherein, the surge pipe upper end is provided with stopping means,
Moving range for limiting the pressure regulation swing arm.
6. liquid density measurement device according to claim 2, wherein, air bleeding valve is provided with the surge pipe, is used for
Discharge the gas in the surge pipe.
7. a kind of liquid density measurement side of liquid density measurement device using according to any one of claim 1-6
Method, including：
Before quantity of fluid to be measured is injected, with electronics balance measurement liquid container and pressure regulation and the quality of volume sensing unit
mnet；
Quantity of fluid to be measured is injected by the liquid container by inlet, until quantity of fluid to be measured is full of the liquid container, envelope
The inlet is closed, the volume V of the quantity of fluid to be measured of injection is recorded0；
The temperature T of the quantity of fluid to be measured is measured by temperature measurement unit；
Liquid container and pressure regulation and the quality m of volume sensing unit after the measurement injection quantity of fluid to be measuredgross, calculate
The quality m of the quantity of fluid to be measured；
Pressure regulation swing arm is moved down, the internal pressure P of the quantity of fluid to be measured is then measured by pressure measurement cell；
The displacement △ h of the other end of lever construction are read by scale, the volume V of the quantity of fluid to be measured is calculatedPT；
Volume V based on the quantity of fluid to be measuredPTWith quality m, described under the temperature T and the internal pressure P treat is calculated
Measure the density p of liquid.
8. liquid density measurement method according to claim 7, wherein, the quality of the quantity of fluid to be measured is：
M=mgross-mnet (1)。
9. liquid density measurement method according to claim 7, wherein, the volume V of the quantity of fluid to be measuredPTFor：
VPT=V0-△h·s/a (2)
Wherein, s represents the cross-sectional area of the surge pipe, and a represents the amplification ratio of the lever construction.
10. liquid density measurement method according to claim 7, wherein, the density p of the quantity of fluid to be measured is：
ρ=m/VPT (3)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710180330.7A CN106950150A (en) | 2017-03-24 | 2017-03-24 | Liquid density measurement device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710180330.7A CN106950150A (en) | 2017-03-24 | 2017-03-24 | Liquid density measurement device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106950150A true CN106950150A (en) | 2017-07-14 |
Family
ID=59472751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710180330.7A Pending CN106950150A (en) | 2017-03-24 | 2017-03-24 | Liquid density measurement device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106950150A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107271324A (en) * | 2017-07-28 | 2017-10-20 | 国网山东省电力公司电力科学研究院 | A kind of micro volatile liquid density measuring equipment and method |
| CN107843549A (en) * | 2017-12-13 | 2018-03-27 | 湖南工业大学 | A kind of lower material volume measure of the change devices and methods therefor of multiple physical field effect |
| CN108507833A (en) * | 2018-05-28 | 2018-09-07 | 苏州诺纳可电子科技有限公司 | A kind of liquid density measurement device |
| CN109870389A (en) * | 2019-04-12 | 2019-06-11 | 长春工程学院 | Based on magnetostrictive displacement sensor irrigation water coefficient of viscosity detection device and method |
| CN110632253A (en) * | 2018-06-22 | 2019-12-31 | 中国石油天然气股份有限公司 | Compression coefficient detection device |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2860516A (en) * | 1956-06-29 | 1958-11-18 | Rhone Poulenc Sa | Apparatus and method for measuring density |
| CN1095160A (en) * | 1993-05-13 | 1994-11-16 | 陈全明 | Measuring density by use of double balance intercommunicating container method and device |
| RU2220283C1 (en) * | 2002-06-20 | 2003-12-27 | Открытое акционерное общество "Нефтемаш" | Process measuring production rate of oil wells in systems of sealed gathering and gear for its realization |
| CN103196792A (en) * | 2013-04-15 | 2013-07-10 | 西北工业大学 | Device and method for measuring density of supercritical aviation kerosene |
| CN104237066A (en) * | 2014-09-26 | 2014-12-24 | 哈尔滨东安发动机（集团）有限公司 | Method for measuring density of object |
| CN104265265A (en) * | 2014-08-29 | 2015-01-07 | 荆州市明德科技有限公司 | Direct measuring method for single-well crude oil gas yield |
| CN104677779A (en) * | 2013-11-28 | 2015-06-03 | 中国石油化工股份有限公司 | Method and system for detecting liquid density |
| CN104807720A (en) * | 2015-05-20 | 2015-07-29 | 闫语童 | Method for measuring object density based on air pressure process |
| CN105352440A (en) * | 2015-12-07 | 2016-02-24 | 华中科技大学 | Electromechanical crack sensor |
| CN206573427U (en) * | 2017-03-24 | 2017-10-20 | 孙学军 | Liquid density measurement device |
-
2017
- 2017-03-24 CN CN201710180330.7A patent/CN106950150A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2860516A (en) * | 1956-06-29 | 1958-11-18 | Rhone Poulenc Sa | Apparatus and method for measuring density |
| CN1095160A (en) * | 1993-05-13 | 1994-11-16 | 陈全明 | Measuring density by use of double balance intercommunicating container method and device |
| RU2220283C1 (en) * | 2002-06-20 | 2003-12-27 | Открытое акционерное общество "Нефтемаш" | Process measuring production rate of oil wells in systems of sealed gathering and gear for its realization |
| CN103196792A (en) * | 2013-04-15 | 2013-07-10 | 西北工业大学 | Device and method for measuring density of supercritical aviation kerosene |
| CN104677779A (en) * | 2013-11-28 | 2015-06-03 | 中国石油化工股份有限公司 | Method and system for detecting liquid density |
| CN104265265A (en) * | 2014-08-29 | 2015-01-07 | 荆州市明德科技有限公司 | Direct measuring method for single-well crude oil gas yield |
| CN104237066A (en) * | 2014-09-26 | 2014-12-24 | 哈尔滨东安发动机（集团）有限公司 | Method for measuring density of object |
| CN104807720A (en) * | 2015-05-20 | 2015-07-29 | 闫语童 | Method for measuring object density based on air pressure process |
| CN105352440A (en) * | 2015-12-07 | 2016-02-24 | 华中科技大学 | Electromechanical crack sensor |
| CN206573427U (en) * | 2017-03-24 | 2017-10-20 | 孙学军 | Liquid density measurement device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107271324A (en) * | 2017-07-28 | 2017-10-20 | 国网山东省电力公司电力科学研究院 | A kind of micro volatile liquid density measuring equipment and method |
| CN107843549A (en) * | 2017-12-13 | 2018-03-27 | 湖南工业大学 | A kind of lower material volume measure of the change devices and methods therefor of multiple physical field effect |
| CN108507833A (en) * | 2018-05-28 | 2018-09-07 | 苏州诺纳可电子科技有限公司 | A kind of liquid density measurement device |
| CN110632253A (en) * | 2018-06-22 | 2019-12-31 | 中国石油天然气股份有限公司 | Compression coefficient detection device |
| CN109870389A (en) * | 2019-04-12 | 2019-06-11 | 长春工程学院 | Based on magnetostrictive displacement sensor irrigation water coefficient of viscosity detection device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106950150A (en) | Liquid density measurement device and method | |
| CN104374683B (en) | A kind of rock core pore compressibility test device and its method of testing | |
| CN104089680B (en) | The measuring method and device of liquid level height | |
| CN106153522B (en) | Core porosity measuring device and measuring method | |
| CN109883894A (en) | A kind of superhigh temperature super-pressure stable state air water mutually seeps test device and test method | |
| CN107843315A (en) | A kind of flowmeter verification device and its calibration method | |
| CN104155433B (en) | A kind of device and method of measuring cement-based material self-constriction amount | |
| CN109060631B (en) | A kind of varying head permeability coefficient measuring system and measurement method | |
| CN111721669A (en) | Method for measuring apparent density and gas content of material | |
| CN114720655A (en) | System and method for simultaneously measuring gas output characteristics of rock cores in different occurrence states | |
| CN206573427U (en) | Liquid density measurement device | |
| CN105628118A (en) | Thermodynamics-based flow meter and thermodynamics-based flow measuring method | |
| CN209636774U (en) | A kind of great burying soil HYDRODYNAMIC CHARACTERISTICS parameter measuring apparatus | |
| CN110388973B (en) | Standard container and volume compensation method thereof | |
| CN115076597B (en) | Filling pressure and quality determining method and filling system of filling machine | |
| CN210198895U (en) | Sand filling method density tester | |
| US10094730B2 (en) | High pressure dynamic micro differential pressure gauge, and methods for using and checking the same | |
| CN106448421A (en) | Dense oil reservoir exploitation simulation device and method | |
| CN107436272A (en) | A kind of apparatus and method based on pressure differential method accurate measurement shale air content | |
| CN111693676B (en) | System and method for measuring bubble point pressure of crude oil in porous medium | |
| CN205280175U (en) | Take exhaust apparatus's liquid level detection ware and flow measurement device | |
| RU2364842C1 (en) | Method for calibration of gas flow metre and device for its realisation | |
| CN204044152U (en) | A kind of device measuring cement-based material self-constriction amount | |
| CN108627437A (en) | Gas micro measurement device and method under experiment reservoir conditions | |
| CN207763880U (en) | A kind of instrument for calibrating pressure measuring meter peculiar to vessel |
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 |