CN203163780U - Bi-directional detection sensor assembly for intelligent water meter - Google Patents
Bi-directional detection sensor assembly for intelligent water meter Download PDFInfo
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- CN203163780U CN203163780U CN 201220749916 CN201220749916U CN203163780U CN 203163780 U CN203163780 U CN 203163780U CN 201220749916 CN201220749916 CN 201220749916 CN 201220749916 U CN201220749916 U CN 201220749916U CN 203163780 U CN203163780 U CN 203163780U
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- water meter
- magnet
- sensor assembly
- tmr
- magnetic
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- 239000011901 water Substances 0.000 title claims abstract description 64
- 238000009434 installation Methods 0.000 claims description 8
- 239000011521 glasses Substances 0.000 claims description 7
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 claims description 4
- 230000001681 protective Effects 0.000 claims description 4
- 239000011257 shell materials Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound 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Abstract
Description
Technical field
The utility model relates to a kind of flow metering sensor, particularly a kind of two-way detecting sensor assembly for intellectual water meter.
Background technology
Intelligent water meter is on the basis of mechanical water meter, mechanical information is converted to electronic signal, thus remote transmission or the long-range survey of finishing the intellectual water meter data copy, and be aided with supporting computer data processing system, data are gathered arrangement, water meter is carried out system management.Therefore the gordian technique of intelligent water meter is exactly sensor technology.Common intellectual water meter sensor mainly comprises following several, and a kind of is the tongue tube sensor, and it installs tongue tube and magnet additional in mechanical water meter, utilizes reed circulating open close under the ringing of magnet of tongue tube, thus output metrical pulse signal; A kind of is Hall element, it installs Hall element and magnet additional in mechanical water meter, constitute the sensor based on the magnetoelectricity switch technology, and the magnet that is installed on the counting scale position turns round along with counting rotating disk, every process Hall element is once namely exported a count pulse by Hall element; A kind of is Wei root sensor, it is according to distinctive magnetic damping characteristic, the spike signal that output duty cycle differs, need to increase extra pulse shaping circuit, circuit complexity, poor reliability, its power consumption is bigger, metering is inaccurate when low discharge, and the magnetic field, working point that it is had relatively high expectations proposes very high requirement to its installation site; A kind of is photoelectric sensor: a photoelectric commutator is installed at the rotating disk place at mechanical water meter, at rotating disk a groove is arranged, and rotating disk whenever turns around, and converter was finished once electricity conversion when groove was defeated through light, exported a count pulse.What these several sensors sent is pulse signal, water meter can reverse under special operating position, in case the same pulse signal that produces of reversing, the cumulative measurement of sort signal system is considered as normal metering, cause the indicator of water gauge metering inconsistent with the numeral metering, easily make between user and the administrative authority and produce metering dispute; And originally experience extraneous vibration influence or because " water hammer " in the water pipe causes the vibration of water meter movement of water meter, the capital makes pulse sensor send improper pulse signal, cause the pulse error, and because response frequency is low, the common scheme of digital water gauge is the speed change by gear, and sensor is installed in 10 up-flow amount positions, and such water meter can only be measured the total flow in a period of time, and can not measure instantaneous delivery, will cause measuring accuracy low like this; And the energy consumption of above several sensors is bigger, especially photoelectric sensor and Wei Gen sensor, make battery short serviceable life, user and administrative authority are difficult to having at fingertips in the battery operating position with water meter, in case battery electric quantity deficiency, water meter measurement may be out of service, perhaps causes the user can't water, and the administrative authority that perhaps supplies water does not suffer a loss because sensor of water meter measures; And tongue tube sensor, Wei root sensor and photoelectric sensor failure rate height, the maintenance cost height; In addition, tongue tube sensor and Hall element are subjected to magnetic interference easily, and some people also can deliberately produce powerful magnetic interference in watermeter shell place additional magnet, reach water purpose steathily.
The utility model content
The utility model provides a kind of two-way detecting sensor assembly that is used for intellectual water meter that can detect adverse current and high precision, low-power consumption and be easy to safeguard for solving the technical matters that exists in the known technology.
The technical scheme that the utility model is taked for the technical matters that exists in the solution known technology is: a kind of two-way detecting sensor assembly for intellectual water meter, comprise the magnet that is installed on the water meter measurement rotatable parts, also comprise being positioned at directly over the described magnet and two TMR reluctance switch sensors that sensitive axes is mutually orthogonal.
Described magnet is positioned at the below of water gage glass, and described two TMR reluctance switch sensors are positioned at the top of water gage glass.
Also comprise the magnetic switch sensor that detects the extraneous magnetic interference of water meter, described magnetic switch sensor is away from described magnet and insensitive to the magnetic field of described magnet.
Described magnetic switch sensor is Hall element or tongue tube sensor.
Described two TMR reluctance switch sensors are welded on the first circuit board, described first circuit board and watermeter shell fixed installation, and described magnetic switch sensor is welded on the second circuit board, described second circuit board and the fixed installation of described first circuit board.
Described two TMR reluctance switch sensors are has the ambipolar TMR reluctance switch sensor that cmos digital latchs output.
Described magnet is rectangular parallelepiped.
Described sensor module integral body adds the ABS protective cover and carries out whole filling and sealing with silica gel.
Advantage and the good effect that the utlity model has are: adopt two mutually orthogonal TMR reluctance switch sensors of sensitive axes to detect rotatable parts rotation situation such as water meter wheel rotor, can send four kinds of different conditions signals, thereby obtain rotational speed and the sense of rotation of impeller, can carry out adverse current detection and instantaneous delivery detects, make accurate measurement, and can find the situation of leaking, send big flow alerting signal; Sensors such as the relative tongue tube sensor of reluctance switch sensor, Wei root sensor and photoelectric sensor, can under continuously running duty, have low-power consumption, high frequency response, high sensitivity, wide measurement clearance, and the life-span is long and the characteristics of high reliability, because of low in energy consumption, the water meter battery life is long, long and the high reliability because of the reluctance switch sensor life-time, thereby failure rate is low, makes that the water meter maintenance cost is low; Increase the magnetic switch sensor that detects the extraneous magnetic interference of water meter, can detect at unusual magnetic interference, in time send alerting signal and respective handling.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is that two TMR reluctance switch sensors of the present utility model and magnet positions concern synoptic diagram;
Fig. 3 a is two TMR reluctance switch sensors of the present utility model output signal synoptic diagram when the magnet clockwise direction is rotated;
Fig. 3 b is two TMR reluctance switch sensors of the present utility model output signal synoptic diagram when the magnet counter rotation.
Among the figure: 1, ABS protective cover; 2, water gage glass; 3, water meter; 4, second circuit board; 5, first circuit board; 6, magnet; 7, TMR reluctance switch sensor.
Embodiment
For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
See also Fig. 1, Fig. 2, Fig. 3 a and Fig. 3 b, a kind of two-way detecting sensor assembly for intellectual water meter, comprise the magnet 6 on the metering rotatable parts that are installed in water meter 3, the metering rotatable parts comprise water meter counter wheel etc., also comprise being positioned at directly over the described magnet 6 and two TMR reluctance switch sensors 7 that sensitive axes is mutually orthogonal.
Described magnet 6 can be positioned at the below of water gage glass 2, and described two TMR reluctance switch sensors 7 can be positioned at the top of water gage glass 2.
Also can further comprise the magnetic switch sensor that detects the extraneous magnetic interference of water meter, described magnetic switch sensor is away from described magnet and insensitive to the magnetic field of described magnet.Described magnetic switch sensor can be Hall element or tongue tube sensor.The installation site of described magnetic switch sensor should guarantee that the magnet of water meter does not produce any influence to it, when not having external magnetic interference like this, the magnet that the magnetic switch sensor is installed the water meter rotatable parts is insensitive, do not produce pulse signal, as extraneous magnetic interference opportunity, then can produce pulse signal, send warning.
During installation, described two TMR reluctance switch sensors 7 can be welded on the first circuit board 5, with the shell fixed installation of described first circuit board 5 with water meter 3, again described magnetic switch sensor is welded on the second circuit board 4, described second circuit board 4 can be fixedly mounted with described first circuit board 5.
Described two TMR reluctance switch sensors 7 are optional to have the ambipolar TMR reluctance switch sensor that cmos digital latchs output.
Described magnet 6 optional rectangular parallelepipeds or other forms.
Described sensor module can integral body add ABS protective cover 1 and carry out whole filling and sealing with silica gel.Classification of waterproof is IP68.
The utility model principle of work is: a direction of TMR magnetic switch can be exported high level when sensing the N pole field, can output low level when sensing the S pole field.Please refer to Fig. 2, Fig. 3 a and Fig. 3 b, two vertical TMR magnetic switchs of placing are placed into the magnet top, when magnet rotates a circle, will produce the level of 4 states.When sense the two-way level for height (10) → high high (11) → when low high (01) → low (00) changes in proper order for being rotated in the forward, please refer to Fig. 2, when level changes for low high (01) → high (11) → just (10) → low (00) order, be reverse rotation, if the position of magnetic switch and magnet steel is to be put into 0.01 of water meter 3On the counter wheel, then revolving turns around is 0.1m 3When external world's material proximity transducer that is magnetic, the tongue tube that detects as external interference or magnetic switch can output low levels, so just can detect the magnetic interference in the external world.
Although by reference to the accompanying drawings preferred embodiment of the present utility model is described above; but the utility model is not limited to above-mentioned embodiment; above-mentioned embodiment only is schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; not breaking away under the scope situation that the utility model aim and claim protect, can also make a lot of forms, these all belong within the protection domain of the present utility model.
Claims (8)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220749916 CN203163780U (en) | 2012-12-29 | 2012-12-29 | Bi-directional detection sensor assembly for intelligent water meter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220749916 CN203163780U (en) | 2012-12-29 | 2012-12-29 | Bi-directional detection sensor assembly for intelligent water meter |
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| CN203163780U true CN203163780U (en) | 2013-08-28 |
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| CN 201220749916 CN203163780U (en) | 2012-12-29 | 2012-12-29 | Bi-directional detection sensor assembly for intelligent water meter |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568032A (en) * | 2015-01-23 | 2015-04-29 | 北京奥特美克科技股份有限公司 | Magneto-electrical flow meter |
| CN105424108A (en) * | 2016-01-04 | 2016-03-23 | 上海肯特仪表股份有限公司 | Magnetic field anomaly detection device of electromagnetic flowmeter sensor |
| CN108351237A (en) * | 2015-07-28 | 2018-07-31 | Yppict株式会社 | The usage amount of fluid or gas measures and flow direction judgment means |
| CN108931344A (en) * | 2018-05-08 | 2018-12-04 | 山东潍微科技股份有限公司 | A kind of water supply line leakage loss table end intelligent wireless remote transmission warning device and its implementation |
| CN109559486A (en) * | 2018-11-13 | 2019-04-02 | 禹州市天源生物科技有限公司 | A kind of Roots's measuring instrument warning device of wireless transmission |
-
2012
- 2012-12-29 CN CN 201220749916 patent/CN203163780U/en not_active IP Right Cessation
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568032A (en) * | 2015-01-23 | 2015-04-29 | 北京奥特美克科技股份有限公司 | Magneto-electrical flow meter |
| CN108351237A (en) * | 2015-07-28 | 2018-07-31 | Yppict株式会社 | The usage amount of fluid or gas measures and flow direction judgment means |
| CN105424108A (en) * | 2016-01-04 | 2016-03-23 | 上海肯特仪表股份有限公司 | Magnetic field anomaly detection device of electromagnetic flowmeter sensor |
| CN108931344A (en) * | 2018-05-08 | 2018-12-04 | 山东潍微科技股份有限公司 | A kind of water supply line leakage loss table end intelligent wireless remote transmission warning device and its implementation |
| CN109559486A (en) * | 2018-11-13 | 2019-04-02 | 禹州市天源生物科技有限公司 | A kind of Roots's measuring instrument warning device of wireless transmission |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| C14 | Grant of patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130828 Termination date: 20151229 |
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| EXPY | Termination of patent right or utility model |