CN101334307B - Servo- type level meter - Google Patents
Servo- type level meter Download PDFInfo
- Publication number
- CN101334307B CN101334307B CN 200810117864 CN200810117864A CN101334307B CN 101334307 B CN101334307 B CN 101334307B CN 200810117864 CN200810117864 CN 200810117864 CN 200810117864 A CN200810117864 A CN 200810117864A CN 101334307 B CN101334307 B CN 101334307B
- Authority
- CN
- China
- Prior art keywords
- servo
- contact
- level meter
- type level
- float
- 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.)
- Active
Links
Images
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
- G01F23/30—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 floats
- G01F23/40—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 floats using bands or wires as transmission elements
- G01F23/44—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 floats using bands or wires as transmission elements using electrically actuated indicating means
-
- 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
- G01F23/0023—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 with a probe suspended by a wire or thread
-
- 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
- G01F23/0038—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 using buoyant probes
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Level Indicators Using A Float (AREA)
Abstract
The invention discloses a servo liquid level meter which comprises a floater which is provided with measuring elements, such as a temperature sensor, a pressure sensor and an interface sensor, etc., and an operating circuit is arranged in the floater, a contact is arranged on the shell of the floater and connected with the operating circuit in the floater. When the floater moves up and down, the contact can be contacted or disconnected with a contact electrode, when the contact electrode is contacted with the contact, a mainboard of the liquid level meter detects the voltage of a power circuit in the floater by the contact, and charges the power circuit in the floater according to the detection result, the operating circuit can also exchange information with the exterior by the contact. The servo liquid level meter has the advantages of convenient usage, stable working voltage and accurate measurement.
Description
Technical field
The present invention relates to a kind of level gauging technology, relate in particular to a kind of servo-type level meter.
Background technology
The storing and transporting system of industries such as liquid level gauge is widely used in oil, chemical industry, edible oil, beverage, brewage by the measurement to the liquid level of storaging liquid in the various tank bodies, reaches the purpose that deposit and the liquid carried are measured.
The principle of the metering method of liquid level gauge is by measuring liquid level or its variation, according to the sectional area of tank body relevant position, can obtain liquid volume or its variable quantity.According to formula m=ρ V (in the formula, m represents liquid quality, and ρ represents fluid density, and V represents liquid volume), can obtain the amount of liquid of deposit in the tank body or the amount of liquid that from jar, transfers out then.
Liquid level of the prior art is in respect of a lot of types, as contact and contactless direct level gauge, static pressure method etc.
The direct level gauge of contact is to drive float by stepper motor initiatively liquid level or water-oil interface etc. to be measured.Different with the buoyancy in the different liquids in air according to float, battery is equipped with in the position at perception float place in the float, is the power supply of the operating circuit in the float.
There is following shortcoming at least in above-mentioned prior art:
Need often to change battery, very inconvenient; And the supply voltage instability of battery, measuring error is big.
Summary of the invention
The purpose of this invention is to provide a kind of easy to use, measure accurate servo-type level meter.
The objective of the invention is to be achieved through the following technical solutions:
Servo-type level meter of the present invention comprises float, is provided with operating circuit in the described float, and described operating circuit is connected with power circuit, and the housing of described float is provided with the contact, and described contact is connected with described power circuit;
This servo-type level meter also comprises contact electrode, and described contact electrode can contact with described contact or disconnect, and described contact electrode is connected with the liquid level gauge mainboard, and is connected with charhing unit and voltage detection unit by described liquid level gauge mainboard.
As seen from the above technical solution provided by the invention, servo-type level meter of the present invention, because the housing of float is provided with the contact, the interior power circuit of contact and float is connected; Contact electrode can contact with the contact or disconnect, and contact electrode is connected with charhing unit and voltage detection unit.When contact electrode contacted with the contact, charhing unit was connected with the interior power circuit of voltage detection unit and float, can the voltage of the power circuit in the float be detected, and according to the result who detects the float internal power circuit is charged.Solve the powerup issue of operating circuit in the float, easy to use, stable operating voltage, measurement are accurate.
Description of drawings
Fig. 1 is the structural representation of servo-type level meter of the present invention;
Fig. 2 is the schematic block circuit diagram of servo-type level meter of the present invention.
Embodiment
Servo-type level meter of the present invention, its preferable embodiment comprises float 1 as shown in Figure 1, float 1 is connected with the engaged wheel 5 of servo-type level meter by dip stick 4.Stepper motor 7 drives engaged wheels 5 and rotates, and can drive float 1 and move up and down, and the suffered buoyancy of float changes when liquid level changes, and the moment loading of generation can accurately be measured buoyancy in force transducer 8, and according to the measure of the change liquid level of buoyancy.This servo-type level meter also comprises photoelectricity acquisition elements 6, is used to gather the elevation information of dip stick 4, knows the position of float 1.
This servo-type level meter also comprises contact electrode 3, and contact electrode 3 is an annular, and dip stick 4 passes from the center pit of contact electrode 3.
Float 1 is provided with measuring sensors such as temperature sensor 9, pressure transducer 10, interface sensor 11, is provided with operating circuit in the float 1, and operating circuit is connected with power circuit, and the housing of float 1 is provided with contact 2, and contact 2 is connected with power circuit; When float 1 moved up and down, contact electrode 3 can contact with contact 2 or disconnect.Contact electrode 3 is connected with the liquid level gauge mainboard, and is connected with charhing unit and voltage detection unit by the liquid level gauge mainboard, can the voltage of power circuit be detected, and according to the result who detects power circuit is charged.
Contact 2 also is connected with operating circuit, and when contact electrode 3 contacted with contact 2, operating circuit can be by contact 2 and contact electrode 3 and outside interactive information; Here " outside " can be the control module or the liquid level gauge mainboard of servo-type level meter, also can be other control system; Information can be two-way interactive alternately, the data that operating circuit stores can send to the outside, outside steering order also can send to operating circuit.
The top of float housing is located in contact 2, and one or more can be arranged, preferred 2.
As shown in Figure 2, concrete power circuit comprises energy-accumulating element and power transfer module, operating circuit comprises intelligent data sampling module CPU and measuring sensor, and intelligent data sampling module CPU and measuring sensor can be powered by energy-accumulating element, also can power by power transfer module.
In the specific embodiment, energy-accumulating element can be electric capacity, disposable battery or recharge-able battery, and intelligent data sampling module CPU can power by energy-accumulating element; Power transfer module can be the measuring sensor power supply according to the voltage requirements of measuring sensor, and intelligent data sampling module CPU can control power transfer module and measuring sensor.
Measuring sensor can comprise at least a elements such as temperature sensor, pressure transducer, interface sensor, can also comprise other measuring sensor.
The outer link of power circuit is provided with diode, and the positive pole of diode is used for avoiding being subjected to the interference of power circuit towards power circuit when operating circuit and outside interactive information, can also prevent that the voltage of power circuit from discharging.
Among the present invention, contact electrode is with after the contact of float contacts, voltage detection unit is judged contact voltage, charhing unit is given the charging of the energy-storage travelling wave tube in the float when voltage is low, charging is undertaken by the contact, when charging voltage reaches setting, control module sends acquisition for the intelligent data sampling module CPU in the float by the contact, order according to control module, intelligent data sampling module CPU regularly gathers operation by measuring sensor, and with acquired data storage in the internal memory of oneself, when gathering end, servo-type level meter rises to contact and contact electrode position contacting by stepper motor with float, the storage data in the float is read into control module handle, and obtain corresponding results.Easy to use, stable operating voltage, measurement are accurate.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.
Claims (8)
1. a servo-type level meter comprises float, is provided with operating circuit in the described float, it is characterized in that, described operating circuit is connected with power circuit, and the housing of described float is provided with the contact, and described contact is connected with described power circuit;
This servo-type level meter also comprises contact electrode, and described contact electrode can contact with described contact or disconnect, and described contact electrode is connected with the liquid level gauge mainboard, and is connected with charhing unit and voltage detection unit by described liquid level gauge mainboard;
Described contact is connected with described operating circuit, and described operating circuit is by described contact and contact electrode and outside interactive information;
Described float is connected with the engaged wheel of described servo-type level meter by dip stick, and described contact electrode is an annular, and described dip stick passes from the center pit of described contact electrode, and the top of described housing is located in described contact.
2. servo-type level meter according to claim 1 is characterized in that described power circuit comprises energy-accumulating element and power transfer module.
3. servo-type level meter according to claim 2, it is characterized in that, described operating circuit comprises intelligent data sampling module CPU and measuring sensor, and described energy-accumulating element is powered to described intelligent data sampling module CPU, and described energy-accumulating element is electric capacity or recharge-able battery; Described power transfer module is powered to described measuring sensor, and described intelligent data sampling module CPU sends control signal to described power transfer module and described measuring sensor.
4. servo-type level meter according to claim 3 is characterized in that, described measuring sensor comprises following at least a element: temperature sensor, pressure transducer, interface sensor.
5. servo-type level meter according to claim 1 is characterized in that described contact has one or more.
6. servo-type level meter according to claim 1 is characterized in that this servo-type level meter also comprises the photoelectricity acquisition elements, is used to gather the elevation information of described dip stick.
7. servo-type level meter according to claim 1 is characterized in that, described operating circuit and power circuit are by described dip stick ground connection.
8. servo-type level meter according to claim 1 is characterized in that, the outer link of described power circuit is provided with diode, and the positive pole of described diode is towards described power circuit.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810117864 CN101334307B (en) | 2008-08-06 | 2008-08-06 | Servo- type level meter |
| PCT/CN2008/073491 WO2010015132A1 (en) | 2008-08-06 | 2008-12-12 | Servo liquid level meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810117864 CN101334307B (en) | 2008-08-06 | 2008-08-06 | Servo- type level meter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101334307A CN101334307A (en) | 2008-12-31 |
| CN101334307B true CN101334307B (en) | 2010-07-14 |
Family
ID=40197054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810117864 Active CN101334307B (en) | 2008-08-06 | 2008-08-06 | Servo- type level meter |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101334307B (en) |
| WO (1) | WO2010015132A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101566492B (en) * | 2009-06-03 | 2011-04-20 | 吴军保 | Liquid storage tank liquid-level meter |
| DE102012102658A1 (en) * | 2011-12-30 | 2013-07-04 | Endress + Hauser Gmbh + Co. Kg | Electromechanical level gauge according to the displacement principle or plumb line principle for determining the filling level of a product in a container |
| CN103604484B (en) * | 2013-10-29 | 2017-02-22 | 北京利德曼生化股份有限公司 | Liquid level detection device for full-automatic biochemical analyzer reaction disc |
| CN103954332A (en) * | 2014-05-21 | 2014-07-30 | 范明军 | Liquid level meter floater with oil-water interface measuring function |
| CN104596617B (en) * | 2014-12-31 | 2018-08-03 | 石小强 | A method of for measuring oil tank internal liquid level |
| CN106840308A (en) * | 2017-03-23 | 2017-06-13 | 大庆市镁龙测控技术有限公司 | Gradual change type detector for oil-water interface |
| CN109612553B (en) * | 2018-12-06 | 2020-07-28 | 佛山科学技术学院 | Biological reagent liquid level detection device and control method |
| CN111256782B (en) * | 2020-02-14 | 2020-12-22 | 孙淑芳 | A measure servo level gauge for oil tank |
| CN112304395A (en) * | 2020-10-23 | 2021-02-02 | 杨宏 | Intelligent water level wireless monitoring liquid level meter |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5824980A (en) * | 1992-04-28 | 1998-10-20 | Itt Flygt Ab | Switch-actuating, liquid-level sensor |
| CN1257192A (en) * | 1999-12-29 | 2000-06-21 | 绵阳高新区新力特传感电子有限公司 | Electronic float displacement sensor |
| CN2695924Y (en) * | 2003-08-07 | 2005-04-27 | 范明军 | Level meter |
| CN2636206Y (en) * | 2003-08-07 | 2004-08-25 | 范明军 | Level meter capable of precisely and reliably measuring float force |
| CN2636207Y (en) * | 2003-08-07 | 2004-08-25 | 范明军 | Servo type level meter |
-
2008
- 2008-08-06 CN CN 200810117864 patent/CN101334307B/en active Active
- 2008-12-12 WO PCT/CN2008/073491 patent/WO2010015132A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2010015132A1 (en) | 2010-02-11 |
| CN101334307A (en) | 2008-12-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101334307B (en) | Servo- type level meter | |
| CN102589647B (en) | Device for measuring fluid level in a container | |
| CN105716685A (en) | Liquid level monitoring device and liquid level monitoring method | |
| CN102980630B (en) | A kind of intelligent digital capacitive liquid level sensor | |
| CN201688893U (en) | Magnetostriction liquid level measuring instrument | |
| WO2014136071A1 (en) | Fluid monitoring system | |
| CN102778269A (en) | Comprehensive measuring system for directly measuring oil consumption of vehicle fuel | |
| CN101592513A (en) | Ocean engineering sink tank water level monitor | |
| CN207439509U (en) | One kind shows liquid level gauge with LCD | |
| CN202109942U (en) | Novel flow measuring device for measuring flow of sewage of open channel | |
| CN101246032A (en) | Oil amount sensor | |
| CN103344300A (en) | Detection device of oil-water interface position and detection method thereof | |
| CN217465904U (en) | Water level detection device for hydraulic engineering | |
| CN106323416B (en) | Capacitance type oil quantity measuring device | |
| CN210400375U (en) | Slope measuring device based on liquid level sensor | |
| CN200941065Y (en) | Magnetic oil level measurer | |
| CN201344837Y (en) | Microcomputer weighing measuring instrument | |
| CN202994244U (en) | Intelligent digital capacitance liquid level sensor | |
| CN209979021U (en) | Liquid level sensor and electric appliance with same | |
| CN206514917U (en) | A kind of contactless non-permeable material tank fill level detection means | |
| CN202547735U (en) | Water level measuring device of open channel dam trough | |
| CN202453034U (en) | Wireless digital monitor of oil-water interface | |
| CN201532232U (en) | Buoy liquidometer of barrel elastic element | |
| CN201037784Y (en) | Soft pot liquid level measuring instrument | |
| CN114199313B (en) | Throw-in type liquid measurement system and measurement method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Beijing Junyou Xinye Technology Co., Ltd. Assignor: Fan Mingjun Contract record no.: 2011990000643 Denomination of invention: Servo- type level meter Granted publication date: 20100714 License type: Exclusive License Open date: 20081231 Record date: 20110715 |