CN203432651U - Liquid level sensor - Google Patents
Liquid level sensor Download PDFInfo
- Publication number
- CN203432651U CN203432651U CN201320510961.8U CN201320510961U CN203432651U CN 203432651 U CN203432651 U CN 203432651U CN 201320510961 U CN201320510961 U CN 201320510961U CN 203432651 U CN203432651 U CN 203432651U
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- liquid
- liquid level
- processor
- communication bus
- level sensor
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- Expired - Fee Related
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Abstract
A liquid level sensor comprises a rod body and a top cover which is arranged at the top end of the rod body. The rod body is provided with at least two floaters with magnetic steel in a sleeved mode, and Hall sensors which are arranged corresponding to the floaters in position are arranged inside the rod body. A processor is arranged inside the top cover, the input end of the processor is connected with the output ends of all the Hall sensors through signal lines, and the output end of the processor comprises an RS232 communication bus, an LIN communication bus and a CAN communication bus. The liquid level sensor is simple in structure, can be used for measuring the liquid level of the liquid of various kinds, can conveniently and stably detect the different liquid levels of liquid lacking, liquid normality, liquid filling and the like inside a container, is stable in structure and low in cost, and can be used in numerous industries like petrochemical engineering, metallurgy, electric power, pharmacy, water supply and discharge and environmental protection where liquid level measurement is needed; meanwhile, storage liquid of the container can be measured by the way that the Hall sensors are used for sensing magnetic field change to be matched with the processor, and conducting media making contact with the liquid do not exist.
Description
Technical field
The utility model relates to a kind of sensor, is specially a kind of liquid level sensor.
Background technology
No matter be resistance-type level transducer or capacitance level transducer, all need to have conducting medium to insert in liquid, and in order to increase accuracy of detection, conducting medium must be higher than the change in elevation of liquid level at present.The occasion of using due to this class sensor is very many, and the container of its carrying liquid is also different, so the length of the conducting medium of using is also different, thereby makes sensors with auxiliary electrode were all need to have the process of a demarcation.But, once the data of the comparatively complicated record of the calibration process of existing apparatus have a point tolerance, will cause the detected data of this liquid level sensor inaccurate.
In addition on the one hand, no matter be resistance-type level transducer or capacitance level transducer, all need to have conducting medium to contact with liquid.This class liquid level sensor is widely used in fuel oil or liquefied gas, and the fault once circuit is short-circuited produces Mars, and consequence is by hardly imaginable.
Utility model content
The technical matters that the utility model solves is to provide a kind of liquid level sensor, to solve the problem proposing in above-mentioned background technology.
The technical matters that the utility model solves realizes by the following technical solutions:
A kind of liquid level sensor, comprise the body of rod and the top cover that is arranged on body of rod top, on the described body of rod, be set with at least two with the float of magnet steel, body of rod inside is provided with the Hall element of setting corresponding to float position, top cover inner treater, the input end of processor is connected with the output terminal of each Hall element by signal wire, and the output terminal of described processor includes RS232 communication bus, LIN communication bus and CAN communication bus.
Further, the output terminal of above-mentioned Hall element is connected with the input end of processor by filtering circuit.
Further, above-mentioned each float top is equipped with banking stop.
The beneficial effects of the utility model are: the utility model is simple in structure, for various liquid levels, measure, can facilitate, lack the different liquid levels such as liquid, normal, full liquid in stable inspection instrument, Stability Analysis of Structures, with low cost, can be used for needing all conglomeraties such as petrochemical complex, metallurgy, electric power, pharmacy, water supply and sewage, environmental protection of level gauging; The variation of simultaneously experiencing magnetic field by Hall element coordinates processor to carry out the measurement of containers store solution, does not have the conducting medium contacting with liquid.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
In order to make of the present utility modelly to realize technological means, creation characteristic, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
As shown in Figure 1, a kind of liquid level sensor, comprise the body of rod 1 and the top cover 2 that is arranged on body of rod top, on the described body of rod 1, be set with at least two with the float 4 of magnet steel 5, each float 4 tops are equipped with banking stop 7, the body of rod 1 inside is provided with the Hall element 6 with the float 4 corresponding settings in position, top cover 2 inner treaters 3, the input end of processor 3 is connected with the output terminal of each Hall element 6 by signal wire, and the output terminal of described processor 3 includes RS232 communication bus, LIN communication bus and CAN communication bus.The output terminal of above-mentioned Hall element 6 is connected with the input end of processor 3 by filtering circuit.The utility model is simple in structure, for various liquid levels, measure, can facilitate, lack the different liquid levels such as liquid, normal, full liquid in stable inspection instrument, Stability Analysis of Structures, with low cost, can be used for needing all conglomeraties such as petrochemical complex, metallurgy, electric power, pharmacy, water supply and sewage, environmental protection of level gauging; The variation of simultaneously experiencing magnetic field by Hall element coordinates processor to carry out the measurement of containers store solution, does not have the conducting medium contacting with liquid.
More than show and described ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and instructions, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.Claimed scope of the present utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. a liquid level sensor, comprise the body of rod and the top cover that is arranged on body of rod top, it is characterized in that: on the described body of rod, be set with at least two with the float of magnet steel, body of rod inside is provided with the Hall element of setting corresponding to float position, top cover inner treater, the input end of processor is connected with the output terminal of each Hall element by signal wire, and the output terminal of described processor includes RS232 communication bus, LIN communication bus and CAN communication bus.
2. a kind of liquid level sensor according to claim 1, is characterized in that: the output terminal of above-mentioned Hall element is connected with the input end of processor by filtering circuit.
3. a kind of liquid level sensor according to claim 1, is characterized in that: above-mentioned each float top is equipped with banking stop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320510961.8U CN203432651U (en) | 2013-08-20 | 2013-08-20 | Liquid level sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320510961.8U CN203432651U (en) | 2013-08-20 | 2013-08-20 | Liquid level sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203432651U true CN203432651U (en) | 2014-02-12 |
Family
ID=50061684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320510961.8U Expired - Fee Related CN203432651U (en) | 2013-08-20 | 2013-08-20 | Liquid level sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203432651U (en) |
-
2013
- 2013-08-20 CN CN201320510961.8U patent/CN203432651U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140212 Termination date: 20140820 |
|
| EXPY | Termination of patent right or utility model |