CN205156994U - Liquid level sensor - Google Patents
Liquid level sensor Download PDFInfo
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- CN205156994U CN205156994U CN201520295475.8U CN201520295475U CN205156994U CN 205156994 U CN205156994 U CN 205156994U CN 201520295475 U CN201520295475 U CN 201520295475U CN 205156994 U CN205156994 U CN 205156994U
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- liquid level
- level sensor
- control unit
- control module
- vision
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- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The utility model discloses a liquid level sensor, it includes detecting element, the control unit and demonstration regulating unit, detecting element with show the connection of regulating unit electricity, show regulating unit with the the control unit electricity is connected, the control unit is an external power still, detecting element is one at least. Its simple structure, convenient operation, stability are high, and to the requirement of external environment un -specificness, the conversion of signal and filtering can program control, have increased liquid level sensor's controllability, can prevent the spurious triggering, there are not mechanical loss, long service life in the measurement process, can detect liquid level of the same kind alone and also can detect the multichannel liquid level simultaneously, improve detection efficiency.
Description
Technical field
The utility model belongs to field of industry detection, relates in particular to a kind of liquid level sensor.
Background technology
Liquid level is technological parameter the most common and the most basic in commercial production, all need suitably to control the position of liquid in the production and processing of numerous industry, liquid level sensor is exactly a kind of device of important measurement liquid level, is widely used in the level gauging in fields such as being mainly widely used in petroleum refining, food processing, chemical industry, water treatment, pharmacy, electric power, papermaking, metallurgy, boats and ships and boiler.Traditional Liquid level overwhelming majority is manual control, causes the waste of human resources, and simultaneously security, reliability are not high.
Liquid level sensor is for solving the problem and a kind of liquid level emasuring device grown up gradually, high-degree of conversion can be the form output of electric signal by it, conventional liquid level sensor mostly is throw-in type liquid level sensor, based on the proportional principle of the height of surveyed fluid pressure and this liquid, adopt external advanced isolated form diffuse si sensitive element or ceramic capacitive pressure sensitive sensor, static pressure is converted to electric signal, again through temperature compensation and linear revise, change into standard electric signal, but it requires comparatively strict to testing environment, be not suitable for long-term for measuring the liquid level of the corrosive liquids such as soda acid, and element is expensive, testing cost is high.For this reason, Chinese patent literature CN202221330U discloses a kind of contactless liquid level sensor, comprises light emitting source, optical receiver and control module, and light emitting source, optical receiver are located at same level and are connected with control module respectively; Described control module comprises control chip, computing module, signal amplification module, light source driver module; This light source driver module, computing module, signal amplification module are connected with control chip respectively, and optical receiver, light emitting source are connected with signal amplification module, light source driver module respectively.Above-mentioned liquid level sensor avoids the direct contact measurement element of liquid, and easy to operate, but this liquid level sensor to external world bias light require that higher, structure is comparatively complicated and only can measure a road liquid level, measure efficiency lower.
Utility model content
For this reason, technical problem to be solved in the utility model to be in prior art liquid level sensor to external world higher, the complex structure of environmental requirement and only can detect a road liquid level, to measure efficiency low, thus it is simple, easy to operate, not harsh and can measure multi-way level, liquid level sensor that efficiency is higher to environmental requirement to propose a kind of structure.
For solving the problems of the technologies described above, the technical solution of the utility model is:
The utility model provides a kind of liquid level sensor, comprise detecting unit, control module and vision-control unit, described detecting unit is electrically connected with described vision-control unit, and described vision-control unit is electrically connected with described control module, and described control module is an external power supply also; Described detecting unit is at least one.
Further, described control module comprises input circuit, control module circuit, output circuit and power circuit.
Further, described vision-control unit is the relay be made up of some resistance, signal conversion module and LED.
Described signal conversion module is potentiometer.
Further, described vision-control unit is connected with described control module by splicing ear.
Further, described output circuit is filtering circuit.
Further, described supply voltage is 24V.
Further, described detecting unit is the single-chip microcomputer that described detecting unit comprises two triodes be electrically connected in turn, the electric capacity be electrically connected with described triode and is electrically connected with described electric capacity.
Technique scheme of the present utility model has the following advantages compared to existing technology: liquid level sensor provided by the utility model, comprise detecting unit, control module and vision-control unit, described detecting unit is electrically connected with described vision-control unit, described vision-control unit is electrically connected with described control module, and described control module is an external power supply also; Described detecting unit is at least one.When described liquid level sensor detecting unit detects liquid, export an electric signal, digital signal is converted to through signal conversion module, carry out filtering process by program, vision-control unit exports corresponding on-off model, and its structure is simple, easy to operate, stability is high, environment is without particular/special requirement to external world, the conversion of signal and filtering can programmed control, add the controllability of liquid level sensor, can prevent false triggering; Mechanical loss, long service life is not had in measuring process; A road liquid level can be detected separately and also can detect multi-way level simultaneously, improve detection efficiency.
Accompanying drawing explanation
In order to make content of the present utility model be more likely to be clearly understood, below according to specific embodiment of the utility model also by reference to the accompanying drawings, the utility model is described in further detail, wherein
Fig. 1 is the workflow diagram of liquid level sensor described in the utility model;
Fig. 2 is the structural representation of control module in liquid level sensor described in the utility model;
Fig. 3 is the structural representation of vision-control unit in liquid level sensor described in the utility model.
In figure, Reference numeral is expressed as: 1-detecting unit; 2-control module; 3-vision-control unit; 4-signal conversion module; 5-power supply; 6-power circuit; 7-input circuit; 8-control module circuit; 9-output circuit; 10-connection terminal; 11-first splicing ear; 12-resistance; 13-LED lamp; 14-second splicing ear.
Embodiment
Embodiment
Present embodiments provide a kind of liquid level sensor, as shown in Figure 1, comprise detecting unit 1, control module 2 and vision-control unit 3, the single-chip microcomputer that described detecting unit 1 comprises two triodes be electrically connected in turn, the electric capacity be electrically connected with described triode and is electrically connected with described electric capacity, described detecting unit 1 is electrically connected with described vision-control unit 3, described vision-control unit 3 is electrically connected with described control module 2, and described control module 2 is an external power supply 5 also; Described detecting unit 1 is at least one, is preferably 4 in the present embodiment.
As shown in Figure 2, described control module 2 comprises input circuit 7, control module circuit 8, output circuit 9, power circuit 6, connection terminal 10 and the first splicing ear 11, described vision-control unit 3 has the second splicing ear 14, described control module 2 is connected by the first splicing ear 11 and the second splicing ear 14 with described vision-control unit 3, described control module 2 is connected with power supply 5 by power circuit 6, and described power supply 5 voltage is 24V; Described output circuit 9 is filtering circuit, for reducing the interference of input signal, improves the stability detected further.
As shown in Figure 3, described vision-control unit 3 is relay, and comprise resistance corresponding to detecting unit 1 described with 4 12,4 signal conversion module 4 and 4 LED 13, wherein signal conversion module 4 is potentiometer.
The liquid level sensor course of work described in the utility model is: export an electric signal when detecting unit 1 detects liquid, described electric signal transmission is to the signal conversion module 4 in described vision-control unit 3 and be converted to digital signal, described control module 2 receives described digital signal and carries out program filtering to it, then import in described vision-control unit 3, eventually through LED 13 output optical signal.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of extending out or variation be still among the protection domain that the utility model creates.
Claims (8)
1. a liquid level sensor, it is characterized in that, comprise detecting unit, control module and vision-control unit, described detecting unit is electrically connected with described vision-control unit, described vision-control unit is electrically connected with described control module, and described control module is an external power supply also; Described detecting unit is at least one.
2. liquid level sensor according to claim 1, is characterized in that, described control module comprises input circuit, control module circuit, output circuit and power circuit.
3. liquid level sensor according to claim 1, is characterized in that, described vision-control unit is the relay be made up of some resistance, signal conversion module and LED.
4. liquid level sensor according to claim 3, is characterized in that, described signal conversion module is potentiometer.
5. liquid level sensor according to claim 4, is characterized in that, described vision-control unit is connected with described control module by splicing ear.
6. liquid level sensor according to claim 2, is characterized in that, described output circuit is filtering circuit.
7. the liquid level sensor according to any one of claim 4-6, is characterized in that, described supply voltage is 24V.
8. liquid level sensor according to claim 7, is characterized in that, the single-chip microcomputer that described detecting unit comprises two triodes be electrically connected in turn, the electric capacity be electrically connected with described triode and is electrically connected with described electric capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520295475.8U CN205156994U (en) | 2015-05-08 | 2015-05-08 | Liquid level sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520295475.8U CN205156994U (en) | 2015-05-08 | 2015-05-08 | Liquid level sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205156994U true CN205156994U (en) | 2016-04-13 |
Family
ID=55692677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520295475.8U Expired - Fee Related CN205156994U (en) | 2015-05-08 | 2015-05-08 | Liquid level sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205156994U (en) |
-
2015
- 2015-05-08 CN CN201520295475.8U patent/CN205156994U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180731 Address after: 518000 A District, third industrial area, Guancheng street, Guanlan street, Longhua New District, Shenzhen, Guangdong, China. Patentee after: Shenzhen Lian Wei Intelligent Technology Co., Ltd. Address before: 518000 5 Guanzhong street, Guanlan third industrial park, Baoan District, Shenzhen, Guangdong, is an industrial park. Patentee before: Chen Xingshu |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160413 Termination date: 20210508 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |