CN203929137U - A kind of electromagnetic measurement water meter - Google Patents
A kind of electromagnetic measurement water meter Download PDFInfo
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- CN203929137U CN203929137U CN201420306858.6U CN201420306858U CN203929137U CN 203929137 U CN203929137 U CN 203929137U CN 201420306858 U CN201420306858 U CN 201420306858U CN 203929137 U CN203929137 U CN 203929137U
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- conduit
- water meter
- chip microcomputer
- circuit
- measurement water
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Abstract
A kind of electromagnetic measurement water meter of the present utility model, comprise conduit, a pair of field coil and pair of electrodes, described field coil is connected with excitation driving circuit with transmitting magnetic induction line, the induced potential electric current that electrode produces conducting liquid in magnetic induction line and conduit is drawn, electrode is connected with analog signal processing circuit, A/D conversion and sampling control circuit and single-chip microcomputer convert the amplification of induced potential electric current to Digital Circuit Signal and realize flow rate calculation, the utility model utilizes electromagnetic induction principle, by field coil, produce induced potential, by the power of induced potential, measure the flow velocity of fluid to be measured, the pressure loss is little, measurement result is reliable, scope is large, accuracy is high.
Description
Technical field
The utility model relates to water meter measurement observation and control technology field, particularly a kind of electromagnetic measurement water meter.
Background technology
China is one of country of freshwater resources critical shortage, strengthens the metering of freshwater resources and observing and controlling, carries out using water wisely and scientific consumption of water management is unique correct solution.How constantly to promote the accuracy of measurement of water measurement instrument, reduce the loss of water meter product pressure cardboard, reduce water supply network power consumption, realize automatic data logging and observing and controlling robotization, the problem that institute of Dou Shi water meter manufacturing enterprise must face and make great efforts to be solved.
At present the application of water meter product from potable water metering be main progressively to hot and cold water, heat supply hot water, irrigation water, the field such as water and sewage, process water develop; The sensing technology that represents the most crucial part of water measurement technology also from traditional impeller speed formula and piston positive-displacement meter to electromagnetism, the aspect development such as the Novel flow rate sensing such as ultrasonic, jet and signal processing technology.The iterative method of water measurement technology and observing and controlling robotization is with ripe, the class of water meter product and kind are also increasingly extensively with various, water meter is measured and is become the multi-disciplinary comprehensive branches of learning such as containing machinery, electronics, computing machine, communication, sensing and signal processing, fluid mechanics and material, product also from single terminal end product to networking and system integration develop.
Utility model content
The purpose of this utility model is to provide a kind of electromagnetic measurement water meter, and measurement result is not subject to the impact of flow velocity, temperature, pressure, mechanical part resistance in measuring tube, and accuracy of measurement is high, and speed is fast.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of electromagnetic measurement water meter, comprise conduit, conduit outside is fixed with respectively a pair of field coil and pair of electrodes, described field coil is connected with excitation driving circuit with transmitting magnetic induction line, the induced potential electric current that electrode produces conducting liquid in magnetic induction line and conduit is drawn, electrode is connected with analog signal processing circuit and A/D conversion and sampling control circuit induced potential electric current is amplified and converts Digital Circuit Signal to, A/D conversion and sampling control circuit connect chip microcontroller flow rate calculation, single-chip microcomputer is connected with IO interface, display device and data communication interface are realized data manipulation, detect and transmission.
Further, described conduit both-side opening is provided with flange, and catheter interior is provided with lining, and described lining adopts insulating material, and described conduit outer cover is equipped with conduit shell.
Further, within described excitation driving circuit, analog signal processing circuit, A/D conversion and sampling control circuit and single-chip microcomputer are installed on watermeter shell, described watermeter shell is connected in the top of conduit shell.
Further, described single-chip microcomputer is also connected with display device, display device is installed on the outside surface at watermeter shell top, and described outside surface is also provided with ESC Escape, adds key, subtracts key and acknowledgement key, ESC Escape, adds key, subtracts key and acknowledgement key is connected with single-chip microcomputer IO interface.
Further, described data communication interface is also connected with wireless communication module, and described wireless communication module and single-chip microcomputer, excitation driving circuit, analog signal processing circuit, A/D conversion and sampling control circuit are by lithium battery power supply.
Beneficial effect
A kind of electromagnetic measurement water meter of the present utility model utilizes electromagnetic induction principle, by field coil, produce induced potential, by the power of induced potential, measure the flow velocity of fluid to be measured, the conductivity of fluid to be measured changes does not within the specific limits affect measurement result, and the physical parameters such as the density of while measurement result and fluid to be measured, viscosity, temperature, pressure are irrelevant, machinery-free motion and choked flow part in measuring guide, the pressure loss is little, measurement result is reliable, and scope is large, and accuracy is high.The utlity model has input key can conveniently arrange each parameter, data communication interface is by wireless real-time transmission data, realize the functions such as remote storage, management, analysis and form, display device shows flow velocity, flow and various alarm symbol, 3.6V lithium battery power supply, can continuous working 5-10, and it is convenient to change battery, and safe and reliable.
Accompanying drawing explanation
Fig. 1 is the side structure cut-open view of a kind of electromagnetic measurement water meter of the present utility model;
Fig. 2 is system architecture diagram of the present utility model.
Reference numeral
Conduit: 1, lining: 2, flange: 3, field coil: 4, conduit shell: 5, base: 6, electrode: 7, fluid sealant: 8, watermeter shell: 9, battery: 10, single chip circuit: 11, O-ring seal: 12, guidance panel: 13, single-chip microcomputer: 14, A/D conversion and sampling control circuit: 15, signal processing circuit: 16, IO interface: 17, excitation driving circuit 18, display screen: 19, data communication interface: 20.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 1, the side structure cut-open view of Fig. 1 a kind of electromagnetic measurement water meter of the present utility model.
An electromagnetic measurement water meter, comprises that two ends are connected with the measuring guide 1 of flange 3, and lining 2 is installed in measuring guide 1, and described lining 2 adopts insulating material.Conduit 1 outside is fixed with a pair of field coil 4 and pair of electrodes 7, and field coil 4 produces magnetic induction line direction and two electrode 7 axis, 1 central axis three is orthogonal for measuring guide.Within conduit 1 is socketed on conduit shell 4.
Conduit shell 4 tops are connected with watermeter shell 8 by base 6, and watermeter shell 8 adds fluid sealant 7 for waterproof sealing with the junction of conduit shell 4.Watermeter shell 8 inside are provided with 3.6V lithium battery 10, and by 3.6V lithium battery 10 single chip circuit 11 as power supply.Watermeter shell 8 tops are provided with guidance panel 13, and guidance panel 13 is fixing by bolt (not indicating on figure) with watermeter shell 8, between watermeter shell 8 and guidance panel 13, is also provided with O-ring seal 12 for waterproof sealing.Display screen 19 and ESC Escape are installed on guidance panel 13, add key, subtract key and acknowledgement key.Display screen 19 is connected and can shows flow velocity with single chip circuit 11, flow, moment flow velocity and the data message such as flow, also can show battery dump energy, the information such as system alarm, user by operation ESC Escape, add key, subtract key and acknowledgement key can be realized the operation to single-chip microcomputer 11, realize regularly and making a copy for, calculating of the critical datas such as flow velocity and flow etc. function.
As shown in Figure 2, be the system construction drawing of a kind of electromagnetic measurement water meter of the present utility model.
First single chip circuit sends control signal and starts excitation driving circuit 18, excitation driving circuit 18 drives field coil 4, after field coil 4 energisings, produce the magnetic induction line B of vertical direction, in conduit 1, the mobile conducting liquid of horizontal direction produces induced field through magnetic induction line B.The pair of electrodes 7 of installing in conduit 4 central axis and magnetic induction line B relative vertical position is drawn induced potential E.Electrode E and analog signal processing circuit 16, A/D conversion and sampling control circuit 15 and single-chip microcomputer 14 are in series, after amplification, sampling and the digital-to-analog conversion of induced potential E through analog signal processing circuit 16 and A/D conversion and sampling control circuit 15, form digital signal, single-chip microcomputer 14 processing digital signal.Because induction electromotive force E is directly proportional to the mean flow rate of excitation signal and conducting liquid, so single-chip microcomputer can be measured by the power of induced potential the flow velocity V of conducting liquid.Single-chip microcomputer 11 is sent to data result on display screen after calculating flow speed data, and by data communication interface 20, data is added up and stored by being wirelessly transmitted to wireless kilowatt meter reading-out system.Single-chip microcomputer 11 is also provided with IO interface 17, to connect input-output device, user by the ESC Escape on panel, add key, subtract key and acknowledgement key, complete the operation to single-chip microcomputer.
As a preferred embodiment, technical indicator of the present utility model comprises: 1) measure bore scope in DN25～600; ) accuracy of measurement measured value ± 0.2+0.5mm/s; 3) good Small flowrate measurement characteristic, and can carry out bidirectional measurement; 4) water meter front and back are without measuring with optional features such as straight length, screen pack, rectifiers; 5) adopt low-power chip, internal battery can reach 15 years serviceable life; 6) conduit of water meter part can buried work, during installation without building measuring well; 7) two pulse signals output, can select GPRS/GSM communication mode; 8) while settling accounts for water rate, the requirement of data metering characteristic conforms GB/T778-2007 standard; 9) built-in supplying cell, without external power supply.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (5)
1. an electromagnetic measurement water meter, it is characterized in that, comprise conduit, conduit outside is fixed with respectively a pair of field coil and pair of electrodes, described field coil is connected with excitation driving circuit with transmitting magnetic induction line, the induced potential electric current that electrode produces conducting liquid in magnetic induction line and conduit is drawn, electrode is connected with analog signal processing circuit and A/D conversion and sampling control circuit induced potential electric current is amplified and converts Digital Circuit Signal to, A/D conversion and sampling control circuit connect chip microcontroller flow rate calculation, single-chip microcomputer is connected with IO interface, display device and data communication interface are realized data manipulation, detect and transmission.
2. a kind of electromagnetic measurement water meter according to claim 1, is characterized in that, described conduit both-side opening is provided with flange, and catheter interior is provided with lining, and described lining adopts insulating material, and described conduit outer cover is equipped with conduit shell.
3. a kind of electromagnetic measurement water meter according to claim 2, it is characterized in that, within described excitation driving circuit, analog signal processing circuit, A/D conversion and sampling control circuit and single-chip microcomputer are installed on watermeter shell, described watermeter shell is connected in the top of conduit shell.
4. a kind of electromagnetic measurement water meter according to claim 3, it is characterized in that, described single-chip microcomputer is also connected with display device, display device is installed on the outside surface at watermeter shell top, described outside surface is also provided with ESC Escape, adds key, subtracts key and acknowledgement key, ESC Escape, adds key, subtracts key and acknowledgement key is connected with single-chip microcomputer IO interface.
5. a kind of electromagnetic measurement water meter according to claim 4, it is characterized in that, described data communication interface is also connected with wireless communication module, and described wireless communication module and single-chip microcomputer, excitation driving circuit, analog signal processing circuit, A/D conversion and sampling control circuit are by lithium battery power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420306858.6U CN203929137U (en) | 2014-06-10 | 2014-06-10 | A kind of electromagnetic measurement water meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420306858.6U CN203929137U (en) | 2014-06-10 | 2014-06-10 | A kind of electromagnetic measurement water meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203929137U true CN203929137U (en) | 2014-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420306858.6U Expired - Fee Related CN203929137U (en) | 2014-06-10 | 2014-06-10 | A kind of electromagnetic measurement water meter |
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| Country | Link |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104977052A (en) * | 2015-07-13 | 2015-10-14 | 成都国光电子仪表有限责任公司 | Electromagnetic flowmeter |
| CN105004388A (en) * | 2015-07-13 | 2015-10-28 | 成都国光电子仪表有限责任公司 | Electromagnetic flow meter capable of realizing remote flow control |
| RU2755715C1 (en) * | 2021-01-12 | 2021-09-20 | федеральное государственное бюджетное образовательное учреждение высшего образования "Уфимский государственный авиационный технический университет" | Digital converter of conductive liquid flow rate |
| CN117606577A (en) * | 2024-01-22 | 2024-02-27 | 青岛海湾中水有限公司 | Method and system for monitoring switching flow of reclaimed water and tap water in real time |
-
2014
- 2014-06-10 CN CN201420306858.6U patent/CN203929137U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104977052A (en) * | 2015-07-13 | 2015-10-14 | 成都国光电子仪表有限责任公司 | Electromagnetic flowmeter |
| CN105004388A (en) * | 2015-07-13 | 2015-10-28 | 成都国光电子仪表有限责任公司 | Electromagnetic flow meter capable of realizing remote flow control |
| RU2755715C1 (en) * | 2021-01-12 | 2021-09-20 | федеральное государственное бюджетное образовательное учреждение высшего образования "Уфимский государственный авиационный технический университет" | Digital converter of conductive liquid flow rate |
| CN117606577A (en) * | 2024-01-22 | 2024-02-27 | 青岛海湾中水有限公司 | Method and system for monitoring switching flow of reclaimed water and tap water in real time |
| CN117606577B (en) * | 2024-01-22 | 2024-04-09 | 青岛海湾中水有限公司 | Method and system for monitoring switching flow of reclaimed water and tap water in real time |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 |