CN203929136U - Based on the metering water meter of magnetoresistive transducer - Google Patents
Based on the metering water meter of magnetoresistive transducer Download PDFInfo
- Publication number
- CN203929136U CN203929136U CN201420297952.XU CN201420297952U CN203929136U CN 203929136 U CN203929136 U CN 203929136U CN 201420297952 U CN201420297952 U CN 201420297952U CN 203929136 U CN203929136 U CN 203929136U
- Authority
- CN
- China
- Prior art keywords
- magnetoresistive transducer
- water meter
- impeller
- circular ring
- ring magnet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 10
- 230000035945 sensitivity Effects 0.000 abstract description 5
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 229910000863 Ferronickel Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 210000001138 tear Anatomy 0.000 description 1
- 238000000427 thin-film deposition Methods 0.000 description 1
Landscapes
- Measuring Volume Flow (AREA)
- Details Of Flowmeters (AREA)
Abstract
The utility model relates to a kind of metering water meter based on magnetoresistive transducer.It comprises impeller (6), liquid crystal display (1), main circuit board (2), circular ring magnet (5) and sensor line plate (7), magnetoresistive transducer (4) is installed on described sensor line plate (7), and described magnetoresistive transducer (4) is corresponding with circular ring magnet (5) and be positioned at directly over it.A kind of metering water meter based on magnetoresistive transducer of the utility model, based on magnetoresistive transducer metering, abandon mechanical gear number system completely, simplify the design of mechanical moving element, reduce the load of impeller, utterly destroyed the restriction of gear train to water meter sensitivity and precision.
Description
Technical field
The utility model relates to a kind of water meter, belongs to counting mechanism technical field.
Background technology
The metering method of conventional water meter is mechanical system, and impeller transmission gear number system is realized metering; Remote transmitting water meter is to add electronics collection taking mechanical water meter as basis, data processing, and storage is also uploaded data by communication line.The sensitivity degree of accuracy of water meter is limited by the friction force of counting gear system, longer when service time, and counting gear weares and teares, and can affect sensitivity and the degree of accuracy of water meter.
Summary of the invention
The purpose of this utility model is to overcome above deficiency, a kind of water meter is provided, this water meter measures based on magnetoresistive transducer, abandon mechanical gear number system completely, simplify the design of mechanical moving element, reduce the load of impeller, utterly destroyed the restriction of gear train to water meter sensitivity and precision.
The purpose of this utility model is achieved in that
A kind of metering water meter based on magnetoresistive transducer, comprise impeller, it is characterized in that: described water meter also comprises liquid crystal display, main circuit board, circular ring magnet and sensor line plate, described circular ring magnet is arranged on the top in impeller axle center, and can be along with wheel rotation, described sensor line plate is connected with main circuit board, and main circuit board is connected with liquid crystal display, on described sensor line plate, magnetoresistive transducer is installed, described magnetoresistive transducer is corresponding with circular ring magnet and be positioned at directly over it.
Compared with prior art, the beneficial effects of the utility model are:
A kind of metering water meter based on magnetoresistive transducer of the utility model, the signal generator of the formation of mounting circular ring shape magnet and impeller synchronous rotary on the impeller of water meter, produce electric signal by magnetoresistive transducer, electric signal is presented at flow information on liquid crystal display through the processing of MCU, also can realize data remote by communication line, the utility model has been abandoned mechanical gear number system completely, simplify the design of mechanical moving element, reduce the load of impeller, utterly destroyed the restriction of gear train to water meter sensitivity and precision.
Brief description of the drawings
Fig. 1 is the structural representation of a kind of metering water meter based on magnetoresistive transducer of the utility model.
Fig. 2 is embodiment scheme block diagram of the present utility model.
Fig. 3 is magnetoresistive transducer equivalent circuit diagram of the present utility model.
Fig. 4 a is the signal graph that circular ring magnet rotating 360 degrees its equivalent electrical circuit A of the present utility model road signal produces.
Fig. 4 b is the signal graph that circular ring magnet rotating 360 degrees its equivalent electrical circuit B of the present utility model road signal produces.
In figure:
Liquid crystal display 1,
Main circuit board 2,
Connecting line 3,
Magnetoresistive transducer 4,
Circular ring magnet 5,
Impeller 6,
Sensor line plate 7.
Embodiment
Referring to Fig. 1, the utility model relates to a kind of metering water meter based on magnetoresistive transducer, it comprises liquid crystal display 1, main circuit board 2, connecting line 3, magnetoresistive transducer 4, circular ring magnet 5, impeller 6 and sensor line plate 7, described circular ring magnet 5 is arranged on the top in impeller 6 axle center, and can rotate along with impeller 6, described sensor line plate 7 is connected with main circuit board 2 by connecting line 3, main circuit board 2 is connected with liquid crystal display 1, on described sensor line plate 7, magnetoresistive transducer 4 is installed, described magnetoresistive transducer 4 is corresponding with circular ring magnet 5 and be positioned at directly over it.
The course of work:
Referring to Fig. 2, the signal generator of 5 formation of mounting circular ring shape magnet and impeller 6 synchronous rotaries on the impeller 6 of water meter, produce electric signal by magnetoresistive transducer 4, electric signal is presented at flow information on liquid crystal display 1 through the processing of MCU, also can realize data remote by communication line.
Measuring principle:
Magnetoresistive transducer 4 be by the thin film deposition of ferronickel permeability alloys on silicon chip, form four identical resistor stripes, equivalence becomes Wheatstone bridge to be used for accurately measuring small resistance variations.The magnetoresistive transducer equivalent circuit diagram that this programme adopts is as Fig. 3.When magnet rotating 360 degrees can produce as the signal of Fig. 4 a and Fig. 4 b, wherein,
SRESA: be A road signal comparative result;
SRESB: be B road signal comparative result;
SENS_VAL: be coding result;
The rotation status of impeller can be determined by the variation of SENS_VAL:
Be rotated in the forward: SENS_VAL is changed to 2 → 33 → 1,1 → 0 or 0 → 2
Reverse rotation: SENS_VAL is changed to 0 → 1,1 → 3,3 → 2 or 2 → 0
While rotation: SENS_VAL does not change 2 → 2,3 → 3,1 → 1 or 0 → 0
So just can accomplish 45 ° of the every rotations of impeller to identify, the rotating of impeller, the flow informations such as rotating speed just can obtain through the computing of CPU processor.
The following form of data that signal in Fig. 4 a and Fig. 4 b obtains the differential comparison processing of signal through CPU processor:
Claims (1)
1. the metering water meter based on magnetoresistive transducer, comprise impeller (6), it is characterized in that: described water meter comprises liquid crystal display (1), main circuit board (2), circular ring magnet (5) and sensor line plate (7), described circular ring magnet (5) is arranged on the top in impeller (6) axle center, and can rotate along with impeller (6), described sensor line plate (7) is connected with main circuit board (2), main circuit board (2) is connected with liquid crystal display (1), magnetoresistive transducer (4) is installed on described sensor line plate (7), described magnetoresistive transducer (4) is corresponding with circular ring magnet (5) and be positioned at directly over it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420297952.XU CN203929136U (en) | 2014-06-06 | 2014-06-06 | Based on the metering water meter of magnetoresistive transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420297952.XU CN203929136U (en) | 2014-06-06 | 2014-06-06 | Based on the metering water meter of magnetoresistive transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203929136U true CN203929136U (en) | 2014-11-05 |
Family
ID=51824937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420297952.XU Expired - Lifetime CN203929136U (en) | 2014-06-06 | 2014-06-06 | Based on the metering water meter of magnetoresistive transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203929136U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104990597A (en) * | 2015-07-27 | 2015-10-21 | 山东精量仪表股份有限公司 | Magnetic pulse electronic water meter |
| CN105318928A (en) * | 2015-07-20 | 2016-02-10 | 谈晓彬 | A detachable electronic direct reading counting device |
| CN106441466A (en) * | 2016-11-25 | 2017-02-22 | 北京奥特美克科技股份有限公司 | Electromagnetic water meter |
-
2014
- 2014-06-06 CN CN201420297952.XU patent/CN203929136U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105318928A (en) * | 2015-07-20 | 2016-02-10 | 谈晓彬 | A detachable electronic direct reading counting device |
| CN104990597A (en) * | 2015-07-27 | 2015-10-21 | 山东精量仪表股份有限公司 | Magnetic pulse electronic water meter |
| CN106441466A (en) * | 2016-11-25 | 2017-02-22 | 北京奥特美克科技股份有限公司 | Electromagnetic water meter |
| CN106441466B (en) * | 2016-11-25 | 2023-07-14 | 北京奥特美克科技股份有限公司 | Magneto-electric water meter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141105 |