CN106441496A - Liquid level measuring method - Google Patents
Liquid level measuring method Download PDFInfo
- Publication number
- CN106441496A CN106441496A CN201610892476.XA CN201610892476A CN106441496A CN 106441496 A CN106441496 A CN 106441496A CN 201610892476 A CN201610892476 A CN 201610892476A CN 106441496 A CN106441496 A CN 106441496A
- Authority
- CN
- China
- Prior art keywords
- solid bar
- sleeve
- measured
- liquid level
- fluid
- 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
- G01F23/14—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 measurement of pressure
Abstract
The invention belongs to a method for measuring a liquid level through buoyancy. The method includes the steps of firstly, assembling a liquid level measuring device, wherein as shown in the figure, the liquid level measuring device comprises a pressure sensor, a connecting buckle, a solid bar, a sleeve, a data processing and displaying module and a shell; secondly, perpendicularly placing the device in a container of to-be-measured liquid, and knowing that measurement starts to be valid when the sleeve below the device makes contact with the bottom of the container; thirdly, measuring the liquid level, wherein the acting force of the solid bar in the to-be-measured liquid on the pressure sensor changes according to the difference of the liquid level, and the data processing and displaying module converts and calculates a signal and then outputs the result on a display screen so that the liquid level data can be visually obtained. By designing the detachable connecting buckle in the device, the pressure sensor is protected; by coaxially installing the detachable sleeve with slightly large radius on the outer side, the influences of liquid injecting or liquid shaking on the buoyancy of the solid bar are reduced. The materials and sizes of the solid bar and the sleeve used in the method can be selected and changed according to the type of the to-be-measured liquid and the size of the container, compatibility is high, the application range is wide, manufacturing cost is low, and measurement accuracy is high.
Description
Technical field
The invention belongs to liquid measure field, a kind of method that specifically utilization buoyancy measures liquid level.
Prior art
Liquid level refers to the height of liquid medium liquid level in a reservoir.In the industrial production, liquid level be one critically important
Parameter, liquid measure has critical role in the industrial production, the safety for even directly influencing production having.Liquidometer is to survey
Amount liquid level instrument, in actual mechanical process, the requirement to level gauging is more and more, should according to the requirement of different aspect come
From different types of liquidometer.
In industrial circle, liquid level to be measured, in addition to the static pressure level gauging of called putting-into-type liquid level meter, also Floating Ball Liquid Level
Measurement apparatus, magnetic turnover panel liquid level method, radar method, supercritical ultrasonics technology, bubble method etc..The certainty of measurement that these devices have is low, and very
Many all have higher requirement, radar and ultrasonic unit more complicated and peace on erecting device to container shapes structure and material
Dress volume ratio is larger；Need to ensure sensor in terms of the device regular job of capacitance level transducer measurement liquid level and maintenance
Watertight and prevent the electrode dielectric layer that collides with.The fluid to be measured often changed by some dielectric constants cannot be measured, great majority measurement
Device is limited by fluid to be measured performance and container shapes, for overcoming above-mentioned technical deficiency, it is proposed that a kind of subject range
Extensively, level measuring method easy to use.
Content of the invention
The invention aims to provide a kind of level measuring method, the drawbacks of this method solve existing e measurement technology, compatible
The strong, accuracy of property is high, can be widely used.
The technical scheme is that：
Level measuring method is comprised the following steps,
1. liquid level emasuring device is assembled：Including pressure transducer, data processing and display module, shell, junction button, solid bar,
Sleeve, chooses the solid bar more slightly higher than fluid to be measured container height and sleeve, it is desirable to which solid bar density is more than fluid to be measured, to protect
Confirm that axle is subject in fluid to be measured downward with joint efforts, sleeve is enclosed within outside solid bar, and sleeve bottom end is provided with and supplies fluid to be measured
The hole of turnover；In inside the shell, pressure transducer data is processed and display module is connected by data wire, pressure transducer
For strip device, both sides carry installing hole, and during installation, side is fixed with shell, and opposite side is fixed with junction button, solid bar with
Junction button is threaded, is detachably connected between sleeve and shell;
2. liquid level emasuring device is placed in fluid to be measured：Device is vertically placed in container, the sleeve below device
When touching container bottom, display screen numerical value starts effectively, and sleeve bottom end designs in hole, container and injects or there is liquid
Highly（Liquid level）With in sleeve enter liquid highly consistent;
3. liquid level is measured：According to Archimedes principle, the buoyancy size that the object being immersed in liquid is subject to is equal to and is arranged by the object
After the gravity of the liquid that opens, solid bar material and size are fixed, solid bar is subject to the buoyancy of fluid to be measured to be proportional to fluid to be measured
Height, solid bar to the power of the change that pressure transducer is produced be obtain fluid to be measured level value unique variable, pressure pass
This variable signal is transferred to data processing and display module by sensor, through changing and calculating and can accurately obtain fluid to be measured
Liquid level.
The invention has the beneficial effects as follows：
This method is applied to the polytype liquid of measurement, and does not limit the shape of container, the solid bar for going deep in fluid to be measured
Adjusted according to actual requirement with sleeve material and big I.Compatibility is strong, applied range, and device therefor small volume, cost
Low, can be widely used.
Description of the drawings
Fig. 1 is placed into the overall schematic in fluid to be measured for liquid level emasuring device.
Fig. 2 is example connection fastener structure schematic diagram.
Fig. 3 is example solid bar structural representation.
1 pressure transducer, 2 junction buttons, 3 solid bars, 4 sleeves, 5 data processings and display module, outside 6
Shell, 7 containers.
Specific embodiment：
The level measuring method, comprises the following steps：
1. liquid level emasuring device is assembled：Including pressure transducer, data processing and display module, shell, junction button, solid bar,
Sleeve.Choose the solid bar more slightly higher than fluid to be measured container height and sleeve, it is desirable to which solid bar density is more than fluid to be measured, to protect
Confirm that axle is subject in fluid to be measured downward with joint efforts, solid bar is cylinder, diameter covers jacket casing typically in 8-12mm or so
Outside solid bar, interior hollow-cylindrical, 5 ~ 10mm bigger than solid bar diameter, sleeve bottom end is provided with the hole for fluid to be measured turnover
（2 ~ 5mm of diameter）, sleeve bottom end is higher by 2 ~ 5mm than solid bar；In order to the pressure transducer of upper end is protected, dismountable reality is designed
Axle and sleeve（The used time does not need to unload sleeve and solid bar）, the connecting through and be connected of solid bar and pressure transducer
Button, junction button can adopt irony female thread form, and solid bar upper end adopts the connection of external screw thread mode, sleeve and shell adopt
With screw thread or snap；Pressure transducer is strip device, and both sides carry installing hole, and during installation, side is fixed with shell,
Opposite side is fixed with junction button；Data processing and display module include converter, singlechip chip, digital display screen three
Point, three is connected with data wire, receives the variable signal that simultaneously processing pressure sensor is produced.
2. liquid level emasuring device is placed in fluid to be measured：Device is vertically placed in container, below device
When barrel contacts are to container bottom, display screen numerical value starts effectively, and sleeve bottom end designs in hole, container and injects or there is liquid
The height of body（Liquid level）With in sleeve enter liquid highly consistent.
3. liquid level is measured：According to Archimedes principle, the buoyancy size that the object being immersed in liquid is subject to is equal to by the thing
After the gravity of the liquid that body is arranged, solid bar material and size are fixed, it is tested that solid bar is subject to the buoyancy of fluid to be measured to be proportional to
The height of liquid, solid bar is the unique variable for obtaining fluid to be measured level value to the power of the change that pressure transducer is produced, pressure
This variable signal is transferred to data processing and display module by force transducer, accurately be obtained tested by changing and calculating
The liquid level of liquid.
When measuring to common liq such as water etc., solid bar can take the rod iron of low cost, sleeve using plastics or
Glass material, can adopt acidproof and exotic material to acidic liquid or high-temp liquid when measuring.
Although describe the level measuring method of the present invention above in conjunction with exemplary embodiment, however, the common skill in this area
Art personnel are it should be understood that in the case of without departing from protective scope of the claims, can carry out to above-mentioned example embodiment
Various changes.
Claims (5)
1. a kind of level measuring method, it is characterised in that：Comprise the following steps,
1. liquid level emasuring device is assembled：Including pressure transducer, data processing and display module, shell, junction button, solid bar,
Sleeve, chooses the solid bar more slightly higher than fluid to be measured container height and sleeve, it is desirable to which solid bar density is more than fluid to be measured, to protect
Confirm that axle is subject in fluid to be measured downward with joint efforts, sleeve is enclosed within outside solid bar, and sleeve bottom end is provided with and supplies fluid to be measured
The hole of turnover；In inside the shell, pressure transducer data is processed and display module is connected by data wire, pressure transducer
For strip device, both sides carry installing hole, and during installation, side is fixed with shell, and opposite side is fixed with junction button, solid bar with
Junction button is threaded, is detachably connected between sleeve and shell；
2. liquid level emasuring device is placed in fluid to be measured：Device is vertically placed in container, the sleeve below device
When touching container bottom, display screen numerical value starts effectively, and sleeve bottom end designs in hole, container and injects or there is liquid
Highly（Liquid level）With in sleeve enter liquid highly consistent；
3. liquid level is measured：According to Archimedes principle, the buoyancy size that the object being immersed in liquid is subject to is equal to and is arranged by the object
After the gravity of the liquid that opens, solid bar material and size are fixed, solid bar is subject to the buoyancy of fluid to be measured to be proportional to fluid to be measured
Height, solid bar to the power of the change that pressure transducer is produced be obtain fluid to be measured level value unique variable, pressure pass
This variable signal is transferred to data processing and display module by sensor, through changing and calculating and can accurately obtain fluid to be measured
Liquid level.
2. a kind of liquid level emasuring device according to claim 1, it is characterised in that：The material of the solid bar compares test solution
The density of body is big, cylindrical, a diameter of 8-12mm.
3. a kind of device for measuring volumetric flow of fluid according to claim 1, it is characterised in that：The sleeve is interior hollow-cylindrical, than
Big 5 ~ the 10mm of solid bar diameter, solid bar bottom is higher by 2 ~ 5mm than sleeve bottom end.
4. a kind of device for measuring volumetric flow of fluid according to claim 1, it is characterised in that：The pressure transducer adopts favour stone
Bridge design, sensitivity is in ± 1mm.
5. a kind of device for measuring volumetric flow of fluid according to claim 1, it is characterised in that：The data processing and display module bag
Converter, singlechip chip, three part of digital display screen is included, three is connected with data wire, pass for receiving simultaneously processing pressure
The variable signal that sensor is produced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610892476.XA CN106441496A (en) | 2016-10-13 | 2016-10-13 | Liquid level measuring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610892476.XA CN106441496A (en) | 2016-10-13 | 2016-10-13 | Liquid level measuring method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106441496A true CN106441496A (en) | 2017-02-22 |
Family
ID=58174996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610892476.XA Pending CN106441496A (en) | 2016-10-13 | 2016-10-13 | Liquid level measuring method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106441496A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116818042A (en) * | 2023-08-28 | 2023-09-29 | 中国船舶集团有限公司第七一一研究所 | Medium self-adaptive liquid level measuring device and liquid level measuring method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07280617A (en) * | 1994-04-12 | 1995-10-27 | Chiyoda Corp | Micro liquid flow rate measuring apparatus |
| CN2278206Y (en) * | 1996-02-27 | 1998-04-08 | 林燕彪 | Gravity type liquid level gauge |
| CN1858562A (en) * | 2006-05-25 | 2006-11-08 | 中国科学院等离子体物理研究所 | Buoyancy-type low temperature level meter |
| CN201206992Y (en) * | 2008-05-16 | 2009-03-11 | 孙庆柱 | Spring scale water gage |
| CN202075011U (en) * | 2011-04-26 | 2011-12-14 | 四川省林业科学研究院 | Variable buoyancy automatic liquid level recording instrument |
| CN205483167U (en) * | 2016-03-30 | 2016-08-17 | 连云港大发环保科技有限公司 | Liquid level measuring apparatus |
-
2016
- 2016-10-13 CN CN201610892476.XA patent/CN106441496A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07280617A (en) * | 1994-04-12 | 1995-10-27 | Chiyoda Corp | Micro liquid flow rate measuring apparatus |
| CN2278206Y (en) * | 1996-02-27 | 1998-04-08 | 林燕彪 | Gravity type liquid level gauge |
| CN1858562A (en) * | 2006-05-25 | 2006-11-08 | 中国科学院等离子体物理研究所 | Buoyancy-type low temperature level meter |
| CN201206992Y (en) * | 2008-05-16 | 2009-03-11 | 孙庆柱 | Spring scale water gage |
| CN202075011U (en) * | 2011-04-26 | 2011-12-14 | 四川省林业科学研究院 | Variable buoyancy automatic liquid level recording instrument |
| CN205483167U (en) * | 2016-03-30 | 2016-08-17 | 连云港大发环保科技有限公司 | Liquid level measuring apparatus |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116818042A (en) * | 2023-08-28 | 2023-09-29 | 中国船舶集团有限公司第七一一研究所 | Medium self-adaptive liquid level measuring device and liquid level measuring method |
| CN116818042B (en) * | 2023-08-28 | 2023-11-14 | 中国船舶集团有限公司第七一一研究所 | Medium self-adaptive liquid level measuring device and liquid level measuring method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205483166U (en) | Atmospheric pressure sensing level gauge | |
| CN105758495B (en) | A kind of air pressure sensing liquidometer and its measurement method | |
| KR101258482B1 (en) | Liquid level and density measurement device | |
| US9488511B2 (en) | Magnetic flowmeter with vapor permeation sensor | |
| CN109253960B (en) | Spontaneous imbibition measuring method based on capacitive coupling | |
| CN206387470U (en) | Liquid level emasuring device | |
| CN107167161A (en) | A kind of hydrostatic level calibrating installation based on vertical tape measure | |
| CN105675437B (en) | Displacement difference solution density measuring device and its measuring method | |
| CN105403483B (en) | pressure difference solution density measuring device | |
| CN106441496A (en) | Liquid level measuring method | |
| CN103884399B (en) | Fluid level transmitter | |
| CN104964895B (en) | Pervasive solids measurement of apparent density method and its device | |
| CN106352943A (en) | Liquid level measuring device | |
| CN202048951U (en) | Simple mud meter | |
| CN203824606U (en) | Improved battery cover volume measuring apparatus | |
| CN206321339U (en) | A kind of built-in type vibration measurement probe | |
| CN217520566U (en) | Magnetostrictive liquid level sensor used in severe corrosive and high-crystallization environment | |
| CN102103003A (en) | Direct liquid level boundary indicator | |
| CN210400375U (en) | Slope measuring device based on liquid level sensor | |
| CN107389260A (en) | A kind of high multifunction soil sensor of precision | |
| CN209841608U (en) | Irrigation water viscosity coefficient detection device based on magnetostrictive displacement sensor | |
| CN202547735U (en) | Water level measuring device of open channel dam trough | |
| CN207066512U (en) | A kind of fixed throw-in type liquid level temperature one transmitter | |
| KR200377152Y1 (en) | Liquid quantity sensing device | |
| CN102252799A (en) | Membrane type hydrostatic pressure sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170222 |
|
| RJ01 | Rejection of invention patent application after publication |