CN204421983U - A kind of electromagnetic flow transducer - Google Patents
A kind of electromagnetic flow transducer Download PDFInfo
- Publication number
- CN204421983U CN204421983U CN201520119972.2U CN201520119972U CN204421983U CN 204421983 U CN204421983 U CN 204421983U CN 201520119972 U CN201520119972 U CN 201520119972U CN 204421983 U CN204421983 U CN 204421983U
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- electromagnetic flow
- flow transducer
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- 238000005259 measurement Methods 0.000 abstract description 13
- 230000035945 sensitivity Effects 0.000 abstract description 9
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- 239000007788 liquid Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
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- 230000015572 biosynthetic process Effects 0.000 description 1
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- 230000005674 electromagnetic induction Effects 0.000 description 1
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- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model discloses a kind of electromagnetic flow transducer, comprise magnetic part, magnetic pole (3), electrode (4), sensor overcoat (5) and the signal processing unit for detecting electromotive force, magnetic pole (3) comprises for connecting the extreme base plate of magnetic part one and being positioned at base plate two ends and the side arm extended in the same way, two magnetic poles (3) connect different extreme of magnetic part respectively, the sensor overcoat (5) that magnetic pole (3) and magnetic part are arranged at sealing is inner, electrode (4) insulating mounting is in sensor overcoat (5) and be communicated with signal processing unit, the base plate of two magnetic poles (3) connects the two extreme of same magnetic part respectively, the bearing of trend of the side arm of two magnetic poles (3) is relative.Shorten the length of a magnetic part, thus reduced volume, the impact that when avoiding measurement, convection current amount produces, and a magnetic part has only been set, avoid the mutual interference in magnetic field.Thus improve accuracy and the sensitivity of measurement.
Description
Technical field
The utility model relates to sensor field, particularly relates to a kind of electromagnetic flow transducer.
Background technology
Electromagnetic flow transducer is for measuring instantaneous delivery and the volumetric flow rate of conducting liquid and slurries.Its principle of work is based on Faraday's electromagnetic induction law, namely when conducting liquid does cutting magnetic induction line motion in magnetic field, fluid flows through the magnetic field perpendicular to flow direction, the flowing of conductive liquid induces the voltage be directly proportional to mean flow rate, therefore requires that tested working fluid has MIN conductivity.Need to select according to user, electromagnetic flow transducer can be used for measuring two bodies being mixed with solid in the corrosive liquids such as acid, alkali, salt or liquid, obtains widespread use in industries such as chemical industry, metallurgy and water conservancies.
In the prior art, provide magnetic field by the magnetic part of electromagnetic flow transducer inside, and by changing the shape in magnetic field with one of the magnetic part magnetic pole is extremely connected, the base plate that magnetic pole has a connection magnetic part be positioned at base plate both sides and the side arm extended in the same way.Arrange two magnetic parts and magnetic pole corresponding with it, two magnetic poles connect different extreme simultaneously, and two magnetic poles are staggered relatively defines the magnetic induction line magnetic field vertical with water (flow) direction.And on electromagnetic flow transducer, be provided with paired electrode, loop can be formed with current and signal processing unit, when current flow through, namely conductor cutting magnetic induction line is considered as, induction electromotive force can be produced, signal processing unit is conducted to, by realizing the detection to flow to the measurement of voltage by electrode.
But, because needs two magnetic parts provide magnetic field, and magnetic part is arranged at the direction contrary with side arm bearing of trend, this length that can cause electromagnetic flow transducer comparatively progress and volume is larger, convection current amount certain impact can be produced during measurement, and the magnetic field of two magnetic parts can mutually be interfered, and affects the shape in magnetic field, finally make the accuracy of measurement and sensitivity lower.
Therefore, how reducing the volume of electromagnetic flow transducer and then the accuracy of raising measurement and sensitivity is the current technical issues that need to address of those skilled in the art.
Utility model content
The purpose of this utility model is to provide a kind of electromagnetic flow transducer, has less volume and then improves the accuracy and sensitivity of measuring.
For solving the problems of the technologies described above, the utility model provides a kind of electromagnetic flow transducer, comprise the magnetic part for providing magnetic field, for changing the magnetic pole of magnetic field shape, for forming the paired electrode in loop with current, the signal processing unit detected for the electromotive force produced hydro jet magnetic induction line and sensor overcoat, described magnetic pole comprises for connecting the extreme base plate of described magnetic part one and being positioned at described base plate two ends and the side arm extended in the same way, two described magnetic poles connect different extreme of described magnetic part respectively, described magnetic pole and described magnetic part are arranged at the described sensor jacket internal of sealing, described electrode insulation is installed on described sensor overcoat and is communicated with described signal processing unit, the described base plate of two described magnetic poles connects the two extreme of same magnetic part respectively, the bearing of trend of the described side arm of two described magnetic poles is relative.
Preferably, the described base plate of two described magnetic poles is parallel to each other and the plane that formed of the plane that formed of two of a described magnetic pole described side arms and two described side arms of magnetic pole described in another is mutually vertical.
Preferably, comprise four described electrodes, four described electrodes are uniformly distributed in described sensor overcoat, each described electrode is adjacent and between the described side arm belonging to two described magnetic poles respectively at two successively, and two distances belonging to the described side arm of two described magnetic poles respectively that described spread of electrodes is adjacent are equal.
Preferably, described magnetic part comprises field core and is wound in the field coil of described field core, and the two ends of described field core connect two described base plates respectively.
Preferably, described field core is positioned at described magnetic pole and described field core is equal apart from the distance of four described side arms.
Preferably, described electrode periphery is provided with insulated enclosure cover, and described electrode is embedded in described sensor overcoat by described insulated enclosure cover.
Preferably, described electrode is stepped cylindrical shape, described sensor overcoat is outside equipped with insulating coating, the small end of described electrode is embedded in described sensor overcoat by described insulated enclosure cover and the end face of described small end is exposed to outside described sensor overcoat, the large end of described electrode is embedded in described insulating coating and the end face of described large end is exposed to outside described insulating coating, and described insulating coating completely cuts off the step surface of described sensor overcoat and described electrode.
The electromagnetic flow transducer that the utility model provides is provided with a magnetic part and two magnetic poles, the bearing of trend of the side arm of two magnetic poles is relative, magnetic part is arranged at the direction identical with side arm bearing of trend, i.e. two of the magnetic part extreme base plates connecting two magnetic poles respectively.Shorten the length of an electromagnetic flow transducer magnetic part, thus reduced volume, the impact that when avoiding measurement, convection current amount produces, and a magnetic part has only been set, avoid the mutual interference in magnetic field.Thus improve accuracy and the sensitivity of measurement.
Accompanying drawing explanation
Fig. 1 is the front elevational schematic of a kind of embodiment of electromagnetic flow transducer provided by the utility model;
The schematic side view of a kind of embodiment that Fig. 2 is electromagnetic flow transducer shown in Fig. 1;
Fig. 3 is the front elevational schematic of the magnetic pole of electromagnetic flow transducer provided by the utility model;
Fig. 4 is the schematic side view of the magnetic pole shown in Fig. 3.
Embodiment
Core of the present utility model is to provide a kind of electromagnetic flow transducer, has less volume and then improves the accuracy and sensitivity of measuring.
In order to make those skilled in the art person understand the utility model scheme better, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Please refer to Fig. 1 to Fig. 4, Fig. 1 is the front elevational schematic of a kind of embodiment of electromagnetic flow transducer provided by the utility model; The schematic side view of a kind of embodiment that Fig. 2 is electromagnetic flow transducer shown in Fig. 1; Fig. 3 is the front elevational schematic of the magnetic pole of electromagnetic flow transducer provided by the utility model; Fig. 4 is the schematic side view of the magnetic pole shown in Fig. 3.
The electromagnetic flow transducer that the utility model embodiment provides, comprises a magnetic part and two magnetic poles 3, and the both sides of magnetic part are that different two of magnetic polarity are extreme.Magnetic pole 3 comprises base plate and two side arms, and side arm is positioned at the both sides of base plate and bearing of trend is identical, magnetic pole 3 is become frame that one has opening.Magnetic part is arranged in frame, and namely magnetic part is arranged on the direction identical with side arm bearing of trend, and the bearing of trend of the side arm of two magnetic poles 3 is relative, and the base plate of two magnetic poles 3 connects two of magnetic part extremely respectively.Two magnetic poles 3 stagger certain angle, and magnetic part is surrounded by two magnetic poles 3, make the magnetic polarity of two adjacent side arms different, and form the magnetic induction line perpendicular to water (flow) direction.Magnetic pole 3 and magnetic part are arranged in sensor overcoat 5, and the electrode 4 that insulating mounting is paired on sensor overcoat 5, electrode communications signals processing unit also forms loop with current.
During work, electromagnetic flow transducer is arranged in pipeline, when current flow through, is namely considered as conductor cutting magnetic induction line, can induction electromotive force be produced, conduct to signal processing unit by electrode 4, by realizing the detection to flow to the measurement of voltage.Wherein the quantity of magnetic pole 3 can adjust according to actual conditions, as long as can ensure to form stable and vertical with water (flow) direction magnetic induction line, all within protection domain of the present utility model.
Shorten the length of an electromagnetic flow transducer magnetic part by the way, thus reduced volume, the impact that when avoiding measurement, convection current amount produces, and a magnetic part has only been set, avoid the mutual interference in magnetic field.Thus improve accuracy and the sensitivity of measurement.
In the electromagnetic flow transducer that the utility model embodiment provides, two magnetic poles 3 stagger certain angle can form magnetic field between adjacent two side arms making to belong to respectively different magnetic poles 3.Can obtain thus, the base plate of two magnetic poles 3 can be made to be parallel to each other, then the plane that the plane of two of a magnetic pole 3 side arms formation and two side arms of another magnetic pole 3 are formed is mutually vertical, namely two magnetic poles stagger 90 degree.
Magnetic pole 3 is set by the way, makes the distance that belongs to respectively between adjacent two side arms of different magnetic poles 3 equal, thus the Distribution of Magnetic Field formed is even, improve the accuracy of measuring and sensitivity further.Also can according to actual conditions need adjust the angle that staggers of magnetic pole 3, as long as ensure the stable of magnetic field, all within protection domain of the present utility model.
In order to make measurement result more accurate, multiple electrode 4 can be set, improve accuracy further by multimetering.Sensor overcoat 5 evenly arranges four electrodes 4, each described electrode 4 is adjacent and between the described side arm belonging to two described magnetic poles 3 respectively at two successively, and described electrode 4 is equal apart from two that the are adjacent distances belonging to the described side arm of two described magnetic poles 3 respectively.
Between two adjacent electrodes 4, all there is uniform magnetic field and adjacent two electrodes 4 all can form loop, further increasing accuracy and the sensitivity of measurement.Also quantity and the position of electrode 4 can be adjusted according to actual conditions, all within protection domain of the present utility model.
In the electromagnetic flow transducer that the utility model embodiment provides, provide magnetic field by magnetic part.Can obtain thus, use electromagnet as magnetic part, electromagnet comprises field core 1 and is wound in the field coil 2 of field core 1, and the two ends of field core 1 connect magnetic pole 3 respectively, after field coil 2 energising, can produce magnetic field.Also the magnetic part of other types can be used, as used permanent magnet, as long as stable magnetic field can be provided, all within protection domain of the present utility model.
In order to make magnetic field more stable, field core 1 can be arranged at the middle part of the base plate of magnetic pole 3, namely field core 1 is equal apart from the distance of four side arms.Also can adjust, all within protection domain of the present utility model according to the relative position of actual conditions to field core 1 and magnetic pole 3.
In the electromagnetic flow transducer that the utility model embodiment provides, electrode 4 needs to insulate with sensor overcoat 5, therefore, insulated enclosure cover 7 can be set in electrode 4 periphery, and the insulated enclosure cover 7 inside with electrode 4 is embedded in sensor overcoat 5, thus realize insulating between electrode 4 and sensor overcoat 5.
Installing electrodes 4 by the way; make one-piece construction simple; be easy to location; and good insulated enclosure effect can be played; also the mounting means of electrode 4 can be adjusted according to actual conditions; as separated with sensor overcoat 5, as long as can ensure that electrode 4 and sensor overcoat 5 insulate, all within protection domain of the present utility model.
In the electromagnetic flow transducer that the utility model embodiment provides, electrode 4 is stepped cylindrical, the large end of stepped cylindrical and water stream contacts, small end and signal processing unit conducting, and can arrange one deck insulating coating 6 again in the outside of sensor overcoat 5.The small end of electrode 4 is embedded in sensor overcoat 5 by insulated enclosure cover 7 and the end face of small end is exposed to outside sensor overcoat 5, the large end of electrode 4 is embedded in insulating coating 6 and the end face of large end is exposed to outside insulating coating 6, and insulating coating 6 completely cuts off the step surface of sensor overcoat 5 and electrode 4.Contact the conducting that can cause electrode 4 and sensor overcoat 5 owing to small end to be inlayed rear large end with sensor overcoat 5 with the step surface between small end, therefore completely cut off step surface and sensor overcoat 5 by insulating coating 6, realize good insulating effect.Also can not arrange insulating coating 6, electrode 4 is also installed by other modes, as long as ensure the normal work of electromagnetic flow transducer, all within protection domain of the present utility model.
Above electromagnetic flow transducer provided by the utility model is described in detail.Apply specific case herein to set forth principle of the present utility model and embodiment, the explanation of above embodiment just understands method of the present utility model and core concept thereof for helping.Should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model principle, can also carry out some improvement and modification to the utility model, these improve and modify and also fall in the protection domain of the utility model claim.
Claims (7)
1. an electromagnetic flow transducer, comprise the magnetic part for providing magnetic field, for changing the magnetic pole (3) of magnetic field shape, for forming the paired electrode (4) in loop with current, the signal processing unit detected for the electromotive force produced hydro jet magnetic induction line and sensor overcoat (5), described magnetic pole (3) comprises for connecting the extreme base plate of described magnetic part one and being positioned at described base plate two ends and the side arm extended in the same way, two described magnetic poles (3) connect different extreme of described magnetic part respectively, the described sensor overcoat (5) that described magnetic pole (3) and described magnetic part are arranged at sealing is inner, described electrode (4) insulating mounting is in described sensor overcoat (5) and be communicated with described signal processing unit, it is characterized in that, the described base plate of two described magnetic poles (3) connects the two extreme of same magnetic part respectively, the bearing of trend of the described side arm of two described magnetic poles (3) is relative.
2. electromagnetic flow transducer according to claim 1, it is characterized in that, the described base plate of two described magnetic poles (3) is parallel to each other and the plane that formed of the plane that formed of two of a described magnetic pole (3) described side arms and two described side arms of magnetic pole described in another (3) is mutually vertical.
3. electromagnetic flow transducer according to claim 2, it is characterized in that, comprise four described electrodes (4), four described electrodes (4) are uniformly distributed in described sensor overcoat (5), each described electrode (4) be positioned at successively two adjacent and between the described side arm belonging to two described magnetic poles (3) respectively, and described electrode (4) is equal apart from two distances belonging to the described side arm of two described magnetic poles (3) be respectively adjacent.
4. electromagnetic flow transducer according to claim 1, it is characterized in that, described magnetic part comprises field core (1) and is wound in the field coil (2) of described field core (1), and the two ends of described field core (1) connect two described base plates respectively.
5. electromagnetic flow transducer according to claim 4, is characterized in that, described field core (1) is positioned at described magnetic pole (3) and described field core (1) is equal apart from the distance of four described side arms.
6. the electromagnetic flow transducer according to claim 1 to 5 any one, it is characterized in that, described electrode (4) periphery is provided with insulated enclosure cover (7), and described electrode (4) is embedded in described sensor overcoat (5) by described insulated enclosure cover (7).
7. electromagnetic flow transducer according to claim 6, it is characterized in that, described electrode (4) is in stepped cylindrical shape, described sensor overcoat (5) is outside equipped with insulating coating (6), the small end of described electrode (4) is embedded in described sensor overcoat (5) by described insulated enclosure cover (7) and the end face of described small end is exposed to outside described sensor overcoat (5), the large end of described electrode (4) is embedded in described insulating coating (6) and the end face of described large end is exposed to outside described insulating coating (6), the step surface of the isolated described sensor overcoat (5) of described insulating coating (6) and described electrode (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520119972.2U CN204421983U (en) | 2015-02-28 | 2015-02-28 | A kind of electromagnetic flow transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520119972.2U CN204421983U (en) | 2015-02-28 | 2015-02-28 | A kind of electromagnetic flow transducer |
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| Publication Number | Publication Date |
|---|---|
| CN204421983U true CN204421983U (en) | 2015-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520119972.2U Expired - Fee Related CN204421983U (en) | 2015-02-28 | 2015-02-28 | A kind of electromagnetic flow transducer |
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| CN (1) | CN204421983U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107835934A (en) * | 2015-08-19 | 2018-03-23 | 胜赛斯思百克特姆公司 | Inductive flowmeter including extending pole element |
| CN107831334A (en) * | 2017-11-27 | 2018-03-23 | 浙江星天海洋科学技术有限公司 | Two-dimensional vector flow sensor |
| CN108489857A (en) * | 2018-03-13 | 2018-09-04 | 赵静 | A kind of piping jacket density monitoring method |
| CN108507902A (en) * | 2018-03-13 | 2018-09-07 | 赵静 | A kind of piping jacket density monitoring device |
-
2015
- 2015-02-28 CN CN201520119972.2U patent/CN204421983U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107835934A (en) * | 2015-08-19 | 2018-03-23 | 胜赛斯思百克特姆公司 | Inductive flowmeter including extending pole element |
| CN107831334A (en) * | 2017-11-27 | 2018-03-23 | 浙江星天海洋科学技术有限公司 | Two-dimensional vector flow sensor |
| CN108489857A (en) * | 2018-03-13 | 2018-09-04 | 赵静 | A kind of piping jacket density monitoring method |
| CN108507902A (en) * | 2018-03-13 | 2018-09-07 | 赵静 | A kind of piping jacket density monitoring device |
| CN108507902B (en) * | 2018-03-13 | 2020-10-30 | 浙江嘉昱达机械有限公司 | Pipeline protective layer density monitoring device |
| CN108489857B (en) * | 2018-03-13 | 2020-11-06 | 山东水务管道有限公司 | Pipeline protection layer density monitoring method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Connecting structure of two ends of electromagnetic flow sensor measuring pipe Effective date of registration: 20171116 Granted publication date: 20150624 Pledgee: Jilin Zhongxin science and technology credit Company limited by guarantee Pledgor: CHANGCHUN SPRING NEW TECH. CO.,LTD. Registration number: 2017220000019 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20181228 Granted publication date: 20150624 Pledgee: Jilin Zhongxin science and technology credit Company limited by guarantee Pledgor: CHANGCHUN SPRING NEW TECH. CO.,LTD. Registration number: 2017220000019 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Connecting structure of two ends of electromagnetic flow sensor measuring pipe Effective date of registration: 20190115 Granted publication date: 20150624 Pledgee: Jilin Zhongxin science and technology credit Company limited by guarantee Pledgor: CHANGCHUN SPRING NEW TECH. CO.,LTD. Registration number: 2019220000001 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150624 Termination date: 20200228 |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230407 Granted publication date: 20150624 Pledgee: Jilin Zhongxin Technology Credit Financing Guarantee Co.,Ltd. Pledgor: CHANGCHUN SPRING NEW TECH. CO.,LTD. Registration number: 2019220000001 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PM01 | Change of the registration of the contract for pledge of patent right |
Change date: 20230404 Registration number: 2019220000001 Pledgee after: Jilin Zhongxin Technology Credit Financing Guarantee Co.,Ltd. Pledgee before: Jilin Zhongxin science and technology credit Company limited by guarantee |
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| PM01 | Change of the registration of the contract for pledge of patent right |