CN203232327U - Liquid level measurement control device - Google Patents
Liquid level measurement control device Download PDFInfo
- Publication number
- CN203232327U CN203232327U CN 201320209869 CN201320209869U CN203232327U CN 203232327 U CN203232327 U CN 203232327U CN 201320209869 CN201320209869 CN 201320209869 CN 201320209869 U CN201320209869 U CN 201320209869U CN 203232327 U CN203232327 U CN 203232327U
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- Prior art keywords
- liquid level
- level sensor
- control device
- microprocessor
- container
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- 239000007788 liquid Substances 0.000 title claims abstract description 79
- 238000005259 measurement Methods 0.000 title abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000002184 metal Substances 0.000 claims description 22
- 238000002955 isolation Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 2
- 230000035945 sensitivity Effects 0.000 abstract 1
- 238000003756 stirring Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010907 mechanical stirring Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 230000004304 visual acuity Effects 0.000 description 1
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Abstract
The utility model discloses a liquid level measurement control device which comprises a liquid level sensor. The liquid level sensor sends an acquired liquid level change signal after the processing of a C/F converter to a microprocessor. The liquid level signal is analyzed and processed by the microprocessor and then is displayed by a water level display device. The microprocessor is connected with a water inlet valve/water outlet valve control switch and an alarm through a water level control signal interface. The microprocessor communicates with a host computer through a communication interface. The liquid level measurement control device provided by the utility model has the advantages of low cost, high sensitivity, accurate measurement, convenient operation, good real-time performance, small size and compact structure, realizes the miniaturization of the liquid level measurement control device, and can be applied to various instruments or experimental devices which need accurate liquid level detection and control.
Description
Technical field
The utility model relates to a kind of control device, relates in particular to a kind of level gauging control device.
Background technology
Present existing liquid level emasuring device is the level gauging at large-scale or relatively large container mostly, measurement mechanism structure very complicated, and cost is higher, and precision and resolution rate variance can not satisfy the needs that small containers, particularly instrument class device detect liquid level.
The utility model content
The purpose of this utility model is exactly in order to address the above problem, and a kind of level gauging control device is provided, and it has the advantage of high resolving power, high-precision liquid level Detection ﹠ Controling.
To achieve these goals, the utility model adopts following technical scheme:
A kind of level gauging control device, it comprises liquid level sensor, and liquid level sensor is sent into microprocessor with the liquid level variable signal of gathering after the C/F converter is handled, and microprocessor shows by level displaying device the liquid level signal analyzing and processing; Described microprocessor also is connected with gauge tap, the alarm of water intaking valve/outlet valve by water level control signal interface, and described microprocessor is also communicated by letter with host computer by communication interface.
Described liquid level sensor is placed in the container, is provided with puddler in container, and described liquid level sensor is made of two metal polar plates, and described metal polar plate is the different cylindrical shape of diameter, is concentric shafts with the puddler, is enclosed within the outside of puddler respectively.
Described liquid level sensor is placed in the container, and described liquid level sensor is made of two metal polar plates, and described metal polar plate is two metal plate thin slices.
Described liquid level sensor is placed in the container, and described liquid level sensor is made of two metal polar plates, and described metal polar plate is two arc thin slices.
Described liquid level sensor is placed in the container, and described container outer wall is the metal outer wall of metal and electrical isolation, and described liquid level sensor is made of a metal arc pole plate and container outer wall.
Described C/F converter adopts multivibrator the capacitance variations of liquid level sensor to be converted to the pulse signal of different frequency.
Described microprocessor is single-chip microcomputer or MCU.
Described level displaying device is the liquid level display that LED charactron or LCD LCDs are formed.
Described liquid level sensor is placed in the container, and described liquid level sensor is made of two metal polar plate thin slices.
The beneficial effects of the utility model: the utility model cost is low, highly sensitive, measure more accurate, easy and simple to handle, real-time is good, little, the compact conformation of volume has been realized the miniaturization of level gauging control device, can be applicable to need more accurately detect, control in the various instruments or experimental provision of liquid level.
Description of drawings
Fig. 1 is system chart of the present utility model;
Fig. 2 a is the structural representation I of liquid level sensor of the present utility model;
Fig. 2 b is the structural representation II of liquid level sensor of the present utility model;
Fig. 2 c is the structural representation III of liquid level sensor of the present utility model;
Fig. 2 d is the structural representation IV of liquid level sensor of the present utility model.
Wherein, 1. liquid level sensor, 2.C/F converter, 3. microprocessor, 4. water level control signal interface, 5. level displaying device, 6. communication interface.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and embodiment.
As shown in Figure 1, the utility model device comprises following few component parts:
Liquid level sensor 1: liquid level sensor 1 adopts the condenser type principle, mainly constitutes (seeing Fig. 2 a to Fig. 2 d) by two insulated metal pole plates, causes the capacitance variations of liquid level sensor 1 when liquid level changes.
C/F converter 2: adopt multivibrator the capacitance variations of liquid level sensor 1 to be converted to the pulse signal of different frequency.
Microprocessor 3: analyze computing by single-chip microcomputer or MCU class microprocessor pulse signals, reject various environmental errors, obtain liquid level data accurately.
Level displaying device 5: the liquid level display by LED charactron or LCD LCDs are formed shows liquid level data in real time.
Water level control signal interface 4: microprocessor 3 sends control signal and alerting signal according to the liquid level data that detects and default level value, the ON/OFF of control water intaking valve and draining valve.
Communication interface 6: realize communicating by letter of microprocessor 3 and host computer by this interface.Can receive order and liquid level preset value that host computer sends, the liquid level data after handling is sent to host computer
Critical component of the present utility model is making and the installation of liquid level sensor 1, and its basic structure is shown in Fig. 2 a to Fig. 2 d.According to the environment for use difference, can be divided into 4 kinds multi-form:
When (a) being provided with mechanical stirring device in the container, two pole plates of liquid level sensor 1 are the different cylindrical shape of diameter, are concentric shafts with the puddler, are enclosed within the outside of puddler respectively;
When (b) liquid in containers need not stirring or other operation, two pole plates of liquid level sensor 1 were area flat sheet about equally;
When (c) liquid in containers need manually stir or have other operation, two pole plates of liquid level sensor 1 were the arc thin slice, were placed near the container inner wall place;
(d) when container be metal material and outer wall when being electrical isolation, can be the utmost point of chamber wall as liquid level sensor 1, near only establishing an arc pole plate again in the inwall place.
Above-mentioned various difform pole plate must be that the metallic conduction material is made, and does insulation and anti-corrosion treatment.
Liquid level sensor 1 is fixed in the container that needs the measurement liquid level, and when adding or discharge liquid, liquid level changes the capacitance variations that causes between liquid level sensor 1 two-plate.The lead-in wire of liquid level sensor 1 two-plate is inserted in the C/F converter 2, liquid level sensor 1 changes in capacitance will cause the variation of multivibrator oscillation frequency, thereby liquid level sensor 1 changes in capacitance is converted to the pulse signal of different frequency, has realized the C/F conversion.Then the pulse signal of different frequency is sent into microprocessor 3, pulse signals is analyzed computing, rejects the error that various environmental impacts bring, and just can obtain liquid level data accurately, and by the level displaying device 5 that LED charactron or LCD LCDs are formed, show in real time.Utilize the communication interface of microprocessor 3, receive order and liquid level preset value that host computer sends, the liquid level data after handling is sent to host computer.Microprocessor 3 also can by water level control signal interface, send control signal and alerting signal according to the liquid level data that detects and default level value, and the ON/OFF of control water intaking valve and draining valve reaches the purpose of controlling liquid level.
Though above-mentionedly by reference to the accompanying drawings embodiment of the present utility model is described; but be not the restriction to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various modifications that creative work can make or distortion still in protection domain of the present utility model.
Claims (8)
1. a level gauging control device is characterized in that it comprises liquid level sensor, and liquid level sensor is sent into microprocessor with the liquid level variable signal of gathering after the C/F converter is handled, and microprocessor shows by level displaying device the liquid level signal analyzing and processing; Described microprocessor also is connected with gauge tap, the alarm of water intaking valve/outlet valve by water level control signal interface, and described microprocessor is also communicated by letter with host computer by communication interface.
2. a kind of level gauging control device according to claim 1, it is characterized in that, described liquid level sensor is placed in the container, in container, be provided with puddler, described liquid level sensor is made of two metal polar plates, described metal polar plate is the different cylindrical shape of diameter, is concentric shafts with the puddler, is enclosed within the outside of puddler respectively.
3. a kind of level gauging control device according to claim 1 is characterized in that described liquid level sensor is placed in the container, and described liquid level sensor is made of two metal polar plates, and described metal polar plate is two metal plate thin slices.
4. a kind of level gauging control device according to claim 1 is characterized in that described liquid level sensor is placed in the container, and described liquid level sensor is made of two metal polar plates, and described metal polar plate is two arc thin slices.
5. a kind of level gauging control device according to claim 1 is characterized in that described liquid level sensor is placed in the container, and described container outer wall is the metal outer wall of metal and electrical isolation, and described liquid level sensor is made of a metal arc pole plate and container outer wall.
6. a kind of level gauging control device according to claim 1 is characterized in that, described C/F converter adopts multivibrator the capacitance variations of liquid level sensor to be converted to the pulse signal of different frequency.
7. a kind of level gauging control device according to claim 1 is characterized in that described microprocessor is single-chip microcomputer or MCU.
8. a kind of level gauging control device according to claim 1 is characterized in that, described level displaying device is the liquid level display that LED charactron or LCD LCDs are formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320209869 CN203232327U (en) | 2013-04-24 | 2013-04-24 | Liquid level measurement control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320209869 CN203232327U (en) | 2013-04-24 | 2013-04-24 | Liquid level measurement control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203232327U true CN203232327U (en) | 2013-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320209869 Expired - Fee Related CN203232327U (en) | 2013-04-24 | 2013-04-24 | Liquid level measurement control device |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968915A (en) * | 2014-05-28 | 2014-08-06 | 佛山市海天(高明)调味食品有限公司 | Movable type acousto-optic liquid-level alarm |
| CN104165670A (en) * | 2014-07-03 | 2014-11-26 | 深圳市赛亿科技开发有限公司 | Water level control method applied to water drinking device |
| CN104501905A (en) * | 2014-12-15 | 2015-04-08 | 集美大学 | Urban intelligent street ponding emergency alarm processing system |
| CN104677461A (en) * | 2013-11-29 | 2015-06-03 | 哈尔滨恒誉名翔科技有限公司 | Capacitive intelligent liquid level measuring instrument |
| CN105222856A (en) * | 2015-09-16 | 2016-01-06 | 佛山市美的清湖净水设备有限公司 | Condensate tank of dehumidifier and purifier |
| CN106092263A (en) * | 2016-08-12 | 2016-11-09 | 清华大学 | A kind of experiment high precision wireless numeral water depth sensor system |
| CN106643915A (en) * | 2017-03-08 | 2017-05-10 | 北京禹冰水利勘测规划设计有限公司 | Flood-control monitoring management system |
| CN106768172A (en) * | 2015-11-23 | 2017-05-31 | 北京航天试验技术研究所 | Extremely low relative dielectric constant medium level gauging implementation method |
| CN110308674A (en) * | 2019-05-28 | 2019-10-08 | 云南农业大学 | The measurement method of moisture penetration rule in a kind of mountain plateau red soil |
| CN114569009A (en) * | 2022-03-03 | 2022-06-03 | 深圳市优必选科技股份有限公司 | Water tank water level detection equipment and robot of sweeping floor |
-
2013
- 2013-04-24 CN CN 201320209869 patent/CN203232327U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104677461A (en) * | 2013-11-29 | 2015-06-03 | 哈尔滨恒誉名翔科技有限公司 | Capacitive intelligent liquid level measuring instrument |
| CN103968915A (en) * | 2014-05-28 | 2014-08-06 | 佛山市海天(高明)调味食品有限公司 | Movable type acousto-optic liquid-level alarm |
| CN104165670A (en) * | 2014-07-03 | 2014-11-26 | 深圳市赛亿科技开发有限公司 | Water level control method applied to water drinking device |
| CN104501905A (en) * | 2014-12-15 | 2015-04-08 | 集美大学 | Urban intelligent street ponding emergency alarm processing system |
| CN105222856A (en) * | 2015-09-16 | 2016-01-06 | 佛山市美的清湖净水设备有限公司 | Condensate tank of dehumidifier and purifier |
| CN106768172A (en) * | 2015-11-23 | 2017-05-31 | 北京航天试验技术研究所 | Extremely low relative dielectric constant medium level gauging implementation method |
| CN106092263A (en) * | 2016-08-12 | 2016-11-09 | 清华大学 | A kind of experiment high precision wireless numeral water depth sensor system |
| CN106643915A (en) * | 2017-03-08 | 2017-05-10 | 北京禹冰水利勘测规划设计有限公司 | Flood-control monitoring management system |
| CN110308674A (en) * | 2019-05-28 | 2019-10-08 | 云南农业大学 | The measurement method of moisture penetration rule in a kind of mountain plateau red soil |
| CN114569009A (en) * | 2022-03-03 | 2022-06-03 | 深圳市优必选科技股份有限公司 | Water tank water level detection equipment and robot of sweeping floor |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131009 Termination date: 20140424 |