CN211477283U - Liquid level detection circuit and device - Google Patents
Liquid level detection circuit and device Download PDFInfo
- Publication number
- CN211477283U CN211477283U CN202020152736.1U CN202020152736U CN211477283U CN 211477283 U CN211477283 U CN 211477283U CN 202020152736 U CN202020152736 U CN 202020152736U CN 211477283 U CN211477283 U CN 211477283U
- Authority
- CN
- China
- Prior art keywords
- liquid level
- resistor
- level height
- collector
- circuit
- 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
Landscapes
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The application discloses liquid level detection circuit and device, this circuit includes: the liquid level base point collector comprises a liquid level base point collector and a liquid level height collecting circuit, wherein the leading-out end of the liquid level base point collector is directly grounded, and the liquid level height collecting circuit comprises a plurality of liquid level height collectors, a logic processing circuit, a driving amplifying circuit and a signal processing display circuit; the liquid level height collectors are connected with the logic processing circuit, the logic processing circuit is connected with the driving amplifying circuit, the driving amplifying circuit is connected with the signal processing display circuit, the position of each liquid level height collector is just to correspondingly divide the volume of the detection container, and therefore the percentage of the current residual liquid of the container can be conveniently displayed in a grading and discrete mode through the detection circuit and the controller program. The liquid level sensor can be used in severe environments with large liquid concentration and many impurities, is simple and convenient to install, is low in cost, and has wide application prospect.
Description
Technical Field
The application relates to the technical field of electronics, in particular to a liquid level detection circuit and a liquid level detection device.
Background
The caravan water tank comprises a purified water tank (for drinking), a gray water tank (for washing vegetables, bathing and the like) and a black water tank (for excrement), and the liquid level displays of the three water tanks are mutually independent; the water purifying tank and the ash water tank have low liquid concentration and no impurity particles, and a floating magnetic spring sensor shown in figure 1 can be used for liquid level detection; and the black water tank is interior impurity more, liquid concentration is great, if adopt floating magnetic spring sensor to detect, the float very easily the jamming, liquid level detection error is big, and the reliability is poor, and to the water tank of dysmorphism (the different water tanks of different height sectional areas promptly), adopt floating liquid level to detect the height that can only detect out the liquid level, and hardly confirm present remaining water capacity. In order to solve the above problems, it is imperative to design a new form of liquid level detection circuit and apparatus.
Disclosure of Invention
In view of this, the present application provides a liquid level detection circuit and device, especially are applicable to the container that liquid concentration is great, impurity is more, can show the reliability that improves liquid level detection, can be simultaneously to the convenient present liquid surplus of demonstration of different grade type container, simple installation, with low costs, use extensively.
In order to achieve the above purpose, the present application provides the following technical solutions:
a liquid level detection circuit comprising: the liquid level base point collector comprises a liquid level base point collector and a liquid level height collecting circuit, wherein the leading-out end of the liquid level base point collector is directly grounded, and the liquid level height collecting circuit comprises a plurality of liquid level height collectors, a logic processing circuit, a driving amplifying circuit and a signal processing display circuit;
the plurality of liquid level height collectors comprise a first liquid level height collector and a second liquid level height collector, the logic processing circuit comprises a resistor R11, a first phase inverter N1, a resistor R12, a resistor R21, a second phase inverter N2 and a resistor R22, the output end of the first liquid level height collector is connected with one end of a resistor R11 and is also connected with the input end of the first phase inverter N1, the other end of the resistor R11 is connected with a power supply, and the other end of the first phase inverter N1 is connected with one end of the resistor R12;
the driving amplifying circuit comprises a resistor R13, a resistor R14, a first insulated gate field effect transistor Q1, a resistor R23, a resistor R24 and a second insulated gate field effect transistor Q2, wherein the first insulated gate field effect transistor Q1 and the second insulated gate field effect transistor Q2 are both enhancement type, N-channel, substrate and source are internally connected, the other end of the resistor R12 is simultaneously connected with the grid of the first insulated gate field effect transistor Q1 and one end of the resistor R13, the other end of the resistor R13 is connected with the source of the first insulated gate field effect transistor Q1 and grounded, and the drain of the first insulated gate field effect transistor Q1 is connected with one end of the resistor R14;
the signal processing display circuit comprises a controller and a display connected with the output end of the controller, the other end of the resistor R14 is connected to the input end of the controller, and the connection method of the second liquid level height collector and the logic processing circuit, the driving amplification circuit and the signal processing display circuit is the same as that of the first liquid level height collector correspondingly.
Preferably, a plurality of liquid level height collectors still include the third liquid level height collector, it is corresponding, logic processing circuit still include resistance R31, third phase inverter N3 and resistance R32, drive amplifier circuit still include resistance R33, resistance R34 and third insulated gate field effect transistor Q3, the model of third insulated gate field effect transistor Q3 is the same with first insulated gate field effect transistor Q1, the third liquid level height collector simultaneously with logic processing circuit, drive amplifier circuit and signal processing display circuit's approach with first liquid level height collector corresponds the same.
Preferably, a plurality of liquid level height collectors still include fourth liquid level height collector, it is corresponding, logic processing circuit still include resistance R41, fourth inverter N4 and resistance R42, drive amplifier circuit still include resistance R43, resistance R44 and fourth insulated gate field effect transistor Q4, fourth insulated gate field effect transistor Q4's model is the same with first insulated gate field effect transistor Q1, fourth liquid level height collector simultaneously with logic processing circuit, drive amplifier circuit and signal processing display circuit's approach with first liquid level height collector corresponds the same.
Preferably, a plurality of liquid level height collectors still include the fifth liquid level height collector, it is corresponding, logic processing circuit still include resistance R51, fifth phase inverter N5 and resistance R52, drive amplifier circuit still include resistance R53, resistance R54 and fifth insulated gate field effect transistor Q5, the model of fifth insulated gate field effect transistor Q5 is the same with first insulated gate field effect transistor Q1, the fifth liquid level height collector simultaneously with logic processing circuit, drive amplifier circuit and signal processing display circuit's approach with first liquid level height collector corresponds the same.
Preferably, the controller is a single chip microcomputer, and the display is a nixie tube or a liquid crystal display.
Preferably, liquid level basic point collector include rubber sleeve, bolt, hexagon nut, insulating flat pad and signal acquisition line, the bolt adopts conducting material, the rubber sleeve is whole to be hollow cylindrical, and one end has outside outstanding shaft shoulder, has the regular hexagon counter bore bigger than hollow diameter in other end inside, hexagon nut install in this counter bore, bolt pole portion pass hollow through-hole and hexagon nut cooperation, still install insulating flat pad between bolt head and the shaft shoulder, signal acquisition line input winding at bolt pole root and be located between bolt head and the insulating flat pad, liquid level height collector structure and liquid level basic point collector structure of liquid level height acquisition circuit are the same completely.
The utility model provides a liquid level detection device, is including waiting to examine the measuring container and foretell liquid level detection circuit, is equipped with liquid level base point collector mounting hole bottom the container, still is equipped with liquid level height collector mounting hole between liquid level base point collector mounting hole to the container top, the number and the liquid level height collector number phase-match of liquid level height collector mounting hole.
Preferably, the position of each level height collector mounting hole is determined by calculation according to the shape of the detection container, so that the position of each level height collector is just equal to the corresponding equal division of the volume of the container, thereby the percentage of the current residual liquid of the container can be displayed in a discrete grading way through the detection circuit and the controller program.
By adopting the application, the method mainly has the following advantages:
1. the defects of float clamping stagnation, large liquid level detection error, poor reliability and the like of the floating type liquid level detection device in occasions with large liquid concentration and more impurities are overcome;
2. the liquid residual quantity display device can conveniently display the current liquid residual quantity aiming at different types of containers (especially special-shaped containers), and has the advantages of simple and convenient installation, low cost and wide application.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of a floating magnetic reed sensor (prior art);
FIG. 2 is a schematic diagram of a liquid level detection apparatus provided in an embodiment of the present application;
FIG. 3 is a schematic circuit diagram of a liquid level detection apparatus provided in an embodiment of the present application;
FIG. 4 is a schematic assembly view of a liquid level base point (or height) collector provided in the embodiment of the present application before being screwed down;
fig. 5 is an assembly schematic diagram of the fluid level base point (or height) collector provided by the embodiment of the application after being screwed down.
Reference numerals: 0. the liquid level base point collector comprises liquid level base point collectors 1-5, first to fifth liquid level height collectors, 6 rubber sleeves, 7 bolts, 8 hexagon nuts, 9 insulating flat pads, 10 signal collecting wires and 11 detection containers.
Detailed Description
A preferred embodiment of the present application will be described in detail below with reference to the accompanying drawings.
It should be understood that the embodiments described are only a few embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The first embodiment is as follows: referring to fig. 2 to 3, a liquid level detecting circuit, comprising:
the liquid level base point collector comprises a liquid level base point collector 0 and a liquid level height collecting circuit, wherein the leading-out end of the liquid level base point collector is directly grounded, and the liquid level height collecting circuit comprises 5 liquid level height collectors 1-5, a logic processing circuit, a driving amplifying circuit and a signal processing display circuit;
the logic processing circuit comprises a resistor R11, a first inverter N1, a resistor R12, a resistor R21, a second inverter N2, a resistor R22, a resistor R31, a third inverter N3, a resistor R32, a resistor R41, a fourth inverter N4, a resistor R42, a resistor R51, a fifth inverter N5 and a resistor R52, wherein the output end of the first liquid level height collector 1 is connected with one end of the resistor R11 and is also connected with the input end of the first inverter N1, the other end of the resistor R11 is connected with a power supply, and the other end of the first inverter N1 is connected with one end of a resistor R12;
the driving amplification circuit comprises a resistor R13, a resistor R14, a first insulated gate field effect transistor Q1, a resistor R23, a resistor R24, a second insulated gate field effect transistor Q2, a resistor R33, a resistor R34, a third insulated gate field effect transistor Q3, a resistor R43, a resistor R44, a fourth insulated gate field effect transistor Q4, a resistor R53, a resistor R54 and a fifth insulated gate field effect transistor Q5, wherein the first, second, third, fourth and fifth insulated gate field effect transistors Q1-Q5 are all of an enhanced type, an N-channel type and a substrate and source electrode internal connection type, the other end of the resistor R12 is connected with a gate of the first insulated gate field effect transistor Q1 and one end of the resistor R13, the other end of the resistor R13 is connected with a source electrode of the first insulated gate field effect transistor Q1 in parallel connection, and one end of the first insulated gate field effect transistor Q14 is connected with a drain electrode of the resistor R1;
the signal processing display circuit comprises a controller and a display connected with the output end of the controller, the other end of the resistor R14 is respectively connected to the input end of the controller, and the connection methods of the second, third, fourth and fifth liquid level height collectors and the logic processing circuit, the driving amplification circuit and the signal processing display circuit are correspondingly the same as those of the first liquid level height collector.
Preferably, the controller is a single chip microcomputer, and the display is a nixie tube or a liquid crystal display.
As shown in fig. 4-5, the liquid level base point collector includes a rubber sleeve 6, a bolt 7, a hexagon nut 8, an insulating flat pad 9 and a signal collection line 10, the bolt is made of a conductive material, the rubber sleeve is hollow and cylindrical as a whole, one end of the rubber sleeve is provided with a shaft shoulder protruding outwards, a regular hexagon counter bore larger than the hollow diameter is formed inside the other end of the rubber sleeve, the hexagon nut is installed in the counter bore, a bolt rod portion penetrates through a hollow through hole to be matched with the hexagon nut, the insulating flat pad is further installed between the bolt head and the shaft shoulder, an input end of the signal collection line is wound at the root of the bolt rod and is located between the bolt head and the insulating flat pad, and the liquid level height collector structure of the liquid level height collection circuit is completely the same as the liquid level base point.
Example two: a liquid level detection device comprises a container 11 to be detected and a liquid level detection circuit of the first embodiment, wherein a liquid level base point collector mounting hole is formed in the bottom of the container, and 5 liquid level height collector mounting holes are sequentially formed in the wall of the container between the liquid level base point collector mounting hole and the top of the container.
Preferably, the position of each level height collector mounting hole is determined by calculation according to the shape of the detection container, so that the position of the level height collector is just 5 equal parts of the volume of the container, thereby the percentage of the current residual liquid of the container can be displayed in a discrete grading way through the detection circuit and the controller program: 0%, 20%, 40%, 60%, 80% and 100%.
Example three: the installation method of the liquid level detection device comprises the liquid level detection device and comprises the following specific installation steps:
s1, firstly, installing a liquid level base point collector, installing the liquid level base point collector into a liquid level base point collector installation hole through a rubber sleeve, enabling a shaft shoulder of the liquid level base point collector to be reliably contacted with the outer wall of a container, screwing a bolt to enable the rubber sleeve to be extruded by the bolt so as to enable the rubber sleeve to deform, and enabling the rubber sleeve to be tightly attached to the inner wall of the container until the other end, opposite to the shaft shoulder, of the rubber sleeve deforms and increases, so that the liquid level base point collector is guaranteed to be reliably fixed with the container on one hand, and on the other hand, liquid leakage is prevented on the other hand, meanwhile, the input end of the signal acquisition line is tightly;
s2, installing a liquid level height collector in the same way as the liquid level base point collector;
and S3, finally, carrying out safety inspection to ensure that the liquid level base point collector and the liquid level height collector are insulated from the container wall after installation so as to prevent electric shock accidents.
It is to be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or operation from another entity or operation without necessarily requiring or implying any such relationship.
There may be any such actual relationship or order between the entities or operations. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments.
Terms used herein, including technical and scientific terms, have the same meaning as terms commonly understood by one of ordinary skill in the art, unless otherwise defined. It will be understood that terms defined in commonly used dictionaries have meanings that are consistent with their meanings in the prior art.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (8)
1. A liquid level detection circuit, comprising:
the liquid level base point collector comprises a liquid level base point collector and a liquid level height collecting circuit, wherein the leading-out end of the liquid level base point collector is directly grounded, and the liquid level height collecting circuit comprises a plurality of liquid level height collectors, a logic processing circuit, a driving amplifying circuit and a signal processing display circuit;
the plurality of liquid level height collectors comprise a first liquid level height collector and a second liquid level height collector, the logic processing circuit comprises a resistor R11, a first phase inverter N1, a resistor R12, a resistor R21, a second phase inverter N2 and a resistor R22, the output end of the first liquid level height collector is connected with one end of a resistor R11 and is also connected with the input end of the first phase inverter N1, the other end of the resistor R11 is connected with a power supply, and the other end of the first phase inverter N1 is connected with one end of the resistor R12;
the driving amplifying circuit comprises a resistor R13, a resistor R14, a first insulated gate field effect transistor Q1, a resistor R23, a resistor R24 and a second insulated gate field effect transistor Q2, wherein the first insulated gate field effect transistor Q1 and the second insulated gate field effect transistor Q2 are both enhancement type, N-channel, substrate and source are internally connected, the other end of the resistor R12 is simultaneously connected with the grid of the first insulated gate field effect transistor Q1 and one end of the resistor R13, the other end of the resistor R13 is connected with the source of the first insulated gate field effect transistor Q1 and grounded, and the drain of the first insulated gate field effect transistor Q1 is connected with one end of the resistor R14;
the signal processing display circuit comprises a controller and a display connected with the output end of the controller, the other end of the resistor R14 is connected to the input end of the controller, and the connection method of the second liquid level height collector and the logic processing circuit, the driving amplification circuit and the signal processing display circuit is the same as that of the first liquid level height collector correspondingly.
2. A liquid level detecting circuit according to claim 1, wherein: the liquid level height collectors further comprise a third liquid level height collector and a corresponding third liquid level height collector, the logic processing circuit further comprises a resistor R31, a third phase inverter N3 and a resistor R32, the driving amplification circuit further comprises a resistor R33, a resistor R34 and a third insulated gate field effect tube Q3, the type of the third insulated gate field effect tube Q3 is the same as that of the first insulated gate field effect tube Q1, and meanwhile, the third liquid level height collector is connected with the logic processing circuit, the driving amplification circuit and the signal processing display circuit in the same way as that of the first liquid level height collector.
3. A liquid level detecting circuit according to claim 2, wherein: the liquid level height collectors further comprise a fourth liquid level height collector, and are corresponding to the fourth liquid level height collector, the logic processing circuit further comprises a resistor R41, a fourth phase inverter N4 and a resistor R42, the driving amplification circuit further comprises a resistor R43, a resistor R44 and a fourth insulated gate field effect tube Q4, the model of the fourth insulated gate field effect tube Q4 is the same as the first insulated gate field effect tube Q1, and meanwhile, the fourth liquid level height collector is connected with the logic processing circuit, the driving amplification circuit and the signal processing display circuit in a way that the first liquid level height collector corresponds to the same.
4. A liquid level detecting circuit according to claim 3, wherein: the liquid level height collectors further comprise a fifth liquid level height collector and are corresponding to the fifth liquid level height collector, the logic processing circuit further comprises a resistor R51, a fifth phase inverter N5 and a resistor R52, the driving amplification circuit further comprises a resistor R53, a resistor R54 and a fifth insulated gate field effect tube Q5, the model of the fifth insulated gate field effect tube Q5 is the same as the first insulated gate field effect tube Q1, and meanwhile, the fifth liquid level height collector is connected with the logic processing circuit, the driving amplification circuit and the signal processing display circuit in a way that the first liquid level height collector corresponds to the same.
5. A liquid level detection circuit according to any one of claims 1 to 4, wherein: the controller is a single chip microcomputer, and the display is a nixie tube or a liquid crystal display.
6. A liquid level detecting circuit according to claim 5, characterized in that: liquid level basic point collector include rubber sleeve, bolt, hexagon nut, insulating flat pad and signal acquisition line, the bolt adopts conducting material, the rubber sleeve is whole to be hollow cylindrical, and one end has outside outstanding shaft shoulder, has the regular hexagon counter bore bigger than hollow diameter in other end inside, hexagon nut install in this counter bore, bolt pole portion pass hollow through-hole and hexagon nut cooperation, still install insulating flat pad between bolt head and the shaft shoulder, signal acquisition line input winding at bolt pole root and lie in between bolt head and the insulating flat pad, the liquid level height collector structure of liquid level height acquisition circuit is the same completely with liquid level basic point collector structure.
7. A liquid level detection device is characterized by comprising a container to be detected and a liquid level detection circuit as claimed in claim 6, wherein a liquid level base point collector mounting hole is formed in the bottom of the container, a liquid level height collector mounting hole is further formed between the liquid level base point collector mounting hole and the top of the container, and the number of the liquid level height collector mounting holes is matched with that of the liquid level height collectors.
8. The fluid level sensing device of claim 7, wherein the position of each level height collector mounting hole is computationally determined based on the shape of the sensing vessel such that the position of each level height collector is exactly the corresponding division of the volume of the vessel, thereby allowing for a discrete display of the percentage of fluid currently remaining in the vessel in stages through the sensing circuitry and controller program.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020152736.1U CN211477283U (en) | 2020-02-05 | 2020-02-05 | Liquid level detection circuit and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020152736.1U CN211477283U (en) | 2020-02-05 | 2020-02-05 | Liquid level detection circuit and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211477283U true CN211477283U (en) | 2020-09-11 |
Family
ID=72362138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020152736.1U Active CN211477283U (en) | 2020-02-05 | 2020-02-05 | Liquid level detection circuit and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211477283U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112619018A (en) * | 2020-12-23 | 2021-04-09 | 武汉理工大学 | Intelligent fire fighting truck data acquisition and control system and control method thereof |
-
2020
- 2020-02-05 CN CN202020152736.1U patent/CN211477283U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112619018A (en) * | 2020-12-23 | 2021-04-09 | 武汉理工大学 | Intelligent fire fighting truck data acquisition and control system and control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101430218A (en) | Non-contact type capacitance induction level sensor | |
| CN211477283U (en) | Liquid level detection circuit and device | |
| CN102155969A (en) | Water level detecting circuit, device and method | |
| CN111220233A (en) | Liquid level detection circuit, liquid level detection device and installation method of liquid level detection device | |
| CN201438127U (en) | Precise liquid level sensor | |
| CN202734919U (en) | Capacitance type water level detection device | |
| CN88210103U (en) | Leakage detector for composite insulation pipeline | |
| CN201311315Y (en) | Non-contact type inductance-capacitance liquid level sensor | |
| CN207407956U (en) | A kind of liquid level oil spilling real-time monitoring device | |
| CN110436404A (en) | A kind of liquid filling device with detection liquid level function | |
| CN2921795Y (en) | Capacitive liquid level liquid temperature sensing device | |
| CN102393235A (en) | Electrode type liquid level probe available to deep sea environment | |
| CN205679499U (en) | A kind of light-operated vicarious online proportion instrument | |
| CN201429493Y (en) | Water leakage detection device | |
| CN204359387U (en) | A kind of automobile oil mass supervising device | |
| CN201096545Y (en) | Solar water heater temperature- liquid level sensor | |
| CN2216676Y (en) | Capacitance level gauge | |
| CN201568043U (en) | Underground multifunctional corrosion rate detection device | |
| CN202101728U (en) | Corrosion-resistant double liquid level sensor | |
| CN210198496U (en) | Capacitance induction type pipeline liquid level sensor and nonmetal pipeline liquid level detection structure | |
| CN206431092U (en) | A kind of online pH/ORP compound detections instrument | |
| CN216525450U (en) | Wireless oxygen concentration monitoring device | |
| CN207748866U (en) | A kind of Intelligent sewage drain control unit | |
| CN2567550Y (en) | Water level detecting instrument for solar water heater | |
| CN210484018U (en) | Intelligent terminal water intaking ware of function is detected in area |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.20, Jiangsu East Road, Lingang Economic and Technological Development Zone, Weihai City, Shandong Province 264200 Patentee after: Heisi intelligent equipment (Weihai) Co.,Ltd. Address before: No.20, Jiangsu East Road, Lingang Economic and Technological Development Zone, Weihai City, Shandong Province 264200 Patentee before: WEIHAI GORDON TOURISM & LEISURE PRODUCTS Co.,Ltd. |