CN201532217U - Variable-frequency electromagnetic flow meter - Google Patents
Variable-frequency electromagnetic flow meter Download PDFInfo
- Publication number
- CN201532217U CN201532217U CN2009201904135U CN200920190413U CN201532217U CN 201532217 U CN201532217 U CN 201532217U CN 2009201904135 U CN2009201904135 U CN 2009201904135U CN 200920190413 U CN200920190413 U CN 200920190413U CN 201532217 U CN201532217 U CN 201532217U
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- flow meter
- variable
- frequency electromagnetic
- sensor
- flowmeter
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Abstract
The utility model relates to a variable-frequency electromagnetic flow meter mainly comprising a converter, a sensor, electrodes, an exciting coil and a flow meter shell, wherein the converter is arranged at the upper part of a boss of the flow meter shell; the left end and the right end of the inner wall of the sensor are respectively provided with the electrodes; the exciting coil is connected with the upper part of the flow meter shell and is arranged in the boss of the flow meter shell, and the upper top end of the exciting coil is provided with a coil pressure plate; and by changing exciting frequency in real time, the variable-frequency electromagnetic flow meter can eliminate noises, and lead an output signal to be stable, thus having the characteristics of improving the measuring accuracy of fluid in a pipe in real time and the like.
Description
Technical field
The utility model relates to a kind of flowmeter, particularly relate to a kind of variable-frequency electromagnetic flowmeter that is applied to fields such as industrial sectors such as oil, chemical industry, metallurgy, papermaking, environmental protection and municipal administration, river dredging.
Background technology
Electromagnetic flowmeter is a kind of new flowmeter, adopt electromagnetic induction principle to come the instantaneous delivery of measuring media, integrated flux, many indexs such as flow velocity, no choked flow and no moving element in the flowmeter pipeline, can other anti-corrosion material of liner, have special performances such as fabulous corrosion resistance and no choked flow, be not only applicable to measure general conducting liquid, also be applicable to measurement strong acid, highly basic, strongly corrosion liquid or mud such as salt, paper pulp, therefore the cubing of solid-liquid two-phase suspending liquid such as ore pulp also can be widely used in petrochemical complex, metallurgical, weaving, industries such as food.
Chang Yong electromagnetic flowmeter solid-liquid two-phase flow jitter in the market, thus cause the flow detection degree of accuracy not high, and the fluid flow noise is excessive, phenomenons such as output signal instability.
Summary of the invention
The purpose of this utility model is to overcome the deficiency of above-mentioned existence, and provides a kind of by the real time altering excitation frequency, eliminates noise, makes output signal steady, thereby improves the variable-frequency electromagnetic flowmeter of real-time measuring tube inner fluid precision.
The purpose of this utility model is finished by following technical solution, and it mainly comprises converter, sensor, and electrode, field coil and flowmeter shell, described converter are installed on the boss top of flowmeter shell.
Electrode is equipped with at the two ends, the left and right sides of described sensor inwall respectively.
Described field coil is installed in the sensor, and the coil pressing plate is equipped with on the top on field coil.
The utility model belongs to a kind of improvement to prior art, and it can eliminate noise by the real time altering excitation frequency, makes output signal steady, thereby improves characteristics such as real-time measuring tube inner fluid precision.
Description of drawings
Fig. 1 is a main TV structure synoptic diagram of the present utility model.
Fig. 2 is a side-looking structural representation of the present utility model.
Fig. 3 is an electrode structure for amplifying synoptic diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is shown in detailed introduction: Fig. 1,2, the utility model mainly comprises converter 1, sensor 2, electrode 3, field coil 4 and flowmeter shell 5.Described converter 1 is installed on boss 6 tops of flowmeter shell 5.
Electrode 3 (seeing accompanying drawing 3) is equipped with at the two ends, the left and right sides of described sensor 2 inwalls respectively, is contained in the induction electric signal that electrode 3 on the sensor 2 can be measured fluid flows through sensor 2.
Described field coil 4 is connected with flowmeter shell 5 tops, and is installed on boss 6 inside of flowmeter shell 5, and coil pressing plate 7 is equipped with on the top on field coil 4, thereby prevents the coil displacement.
The utility model is regular hour section (generally being two to three seconds), by the electrode 3 test fluid interference noises that are contained in sensor 2, detected induced voltage signal is transported to converter 1, analyze by converter 1, if detected induced voltage signal is obviously excessive or too small, overproof voltage signal, converter 1 calculates the ratio of the voltage signal that is above standard, and adjust the excitation frequency of input pickup 2 field coils 4 in real time according to ratio, section just detects and adjusts at regular intervals, so move in circles, the influence between thereby fundamentally the eliminate fluid flow is made an uproar, guarantee the steady of output signal, the flow detection degree of accuracy is increased substantially.
Claims (3)
1. variable-frequency electromagnetic flowmeter, it mainly comprises converter (1), sensor (2), electrode (3), field coil (4) and flowmeter shell (5) is characterized in that: described converter (1) is installed on boss (6) top of flowmeter shell (5).
2. variable-frequency electromagnetic flowmeter according to claim 1 is characterized in that: electrode (3) is equipped with at the two ends, the left and right sides of described sensor (2) inwall respectively.
3. variable-frequency electromagnetic flowmeter according to claim 1, it is characterized in that: described field coil (4) is connected with flowmeter shell (5) top, and be installed on boss (6) inside of flowmeter shell (5), and coil pressing plate (7) be housed on the last top of field coil (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201904135U CN201532217U (en) | 2009-07-27 | 2009-07-27 | Variable-frequency electromagnetic flow meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201904135U CN201532217U (en) | 2009-07-27 | 2009-07-27 | Variable-frequency electromagnetic flow meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201532217U true CN201532217U (en) | 2010-07-21 |
Family
ID=42527620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201904135U Expired - Fee Related CN201532217U (en) | 2009-07-27 | 2009-07-27 | Variable-frequency electromagnetic flow meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201532217U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102980617A (en) * | 2012-12-21 | 2013-03-20 | 上海一诺仪表有限公司 | Anti-high-frequency electromagnetic interference device for electromagnetic flow meter |
| WO2013044690A1 (en) * | 2011-09-29 | 2013-04-04 | 伊玛精密电子（苏州）有限公司 | Electromagnetic flow sensor |
-
2009
- 2009-07-27 CN CN2009201904135U patent/CN201532217U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013044690A1 (en) * | 2011-09-29 | 2013-04-04 | 伊玛精密电子（苏州）有限公司 | Electromagnetic flow sensor |
| CN102980617A (en) * | 2012-12-21 | 2013-03-20 | 上海一诺仪表有限公司 | Anti-high-frequency electromagnetic interference device for electromagnetic flow meter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20100721 Termination date: 20130727 |