CN207234477U - A kind of field circuit of low power consumption electromagnetic water meter - Google Patents
A kind of field circuit of low power consumption electromagnetic water meter Download PDFInfo
- Publication number
- CN207234477U CN207234477U CN201721364508.5U CN201721364508U CN207234477U CN 207234477 U CN207234477 U CN 207234477U CN 201721364508 U CN201721364508 U CN 201721364508U CN 207234477 U CN207234477 U CN 207234477U
- Authority
- CN
- China
- Prior art keywords
- circuit
- lrc
- power consumption
- water meter
- voltage
- 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.)
- Active
Links
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The utility model belongs to flow metering devices technical field, and in particular to a kind of field circuit of low power consumption electromagnetic water meter, it is characterised in that including：Pulsewidth modulation charging circuit, LRC oscillating circuits, A/D conversion circuits and diode VD, the input terminal connection pulsewidth modulation charging circuit of the diode VD, output terminal connects the inductance L and capacitance C of the LRC oscillating circuits, the other end ground connection of the inductance L, the other end of the capacitance C is grounded after connecting with resistance R, and one end that the inductance L and capacitance C are connected with diode VD is also connected with for the A/D conversion circuits of the magnitude of voltage of monitoring LRC oscillating circuits in real time.The utility model reduces electric quantity consumption by LRC oscillating circuits, and monitors the voltage of oscillating circuit in real time by A/D conversion circuits, when voltage is less than voltage U0When, pulsewidth modulation charging circuit just starts to power to LRC oscillating circuits, greatly reduces power consumption, can greatly improve the service life of battery.
Description
Technical field
A kind of the utility model flow metering devices technical field, and in particular to field circuit of low power consumption electromagnetic water meter.
Background technology
Electromagnetism water meter is the measuring instrument specially designed for the requirement of water supply used water enterprise practical, and electromagnetism water meter generally comprises
Converter assembly and sensor, wherein, electromagnetic flux converter component includes converter and converter supplying cell, electromagnetic current again
Amount turns electromagnetism water meter and is generally placed upon the place that people are not easy contact, and a part is placed on the open air away from the signs of human habitation, in order to protect
Measurement accuracy is demonstrate,proved, needs periodically to replace the battery of instrument according to instrument power consumption and battery charge capacity, and waste battery is unfavorable
It is particularly problematic for the particular surroundings that is not easy to dismounting in environmental protection such as eminence, underwater, and install after dismantling and often deposit again
It is bad sealing, influence the service life of electromagnetism water meter.On the other hand, it is modified when replacing battery there are continuous data
Risk.
The content of the invention
The utility model is short, it is necessary to often replace battery for electromagnetism water meter battery power reservoir capacity existing in the prior art
The problem of, there is provided a kind of field circuit of low power consumption electromagnetic water meter.
Technical solution is used by the utility model solves its technical problem：
A kind of field circuit of low power consumption electromagnetic water meter, it is characterised in that including：Pulsewidth modulation charging circuit, LRC concussions
The input terminal connection pulsewidth modulation charging circuit of circuit, A/D conversion circuits and diode VD, the diode VD, output terminal connect
Connect the inductance L of the LRC oscillating circuits and the other end ground connection of capacitance C, the inductance L, the other end and resistance of the capacitance C
It is grounded after R series connection, one end that the inductance L and capacitance C are connected with diode VD for real-time also with monitoring LRC oscillating circuits
Magnitude of voltage A/D conversion circuits connection.
Further, the LRC oscillating circuits further include the switch K to connect with the inductance L.
Further, the A/D conversion circuits monitor the voltage ＜ U of LRC oscillating circuits0When, the pulsewidth modulation
Charging circuit charges to LRC oscillating circuits, until magnitude of voltage reaches U0Complete charge, wherein U0=3.3V.
A kind of beneficial effect of the field circuit of low power consumption electromagnetic water meter of the utility model is：
The field circuit of the utility model reduces electric quantity consumption by LRC oscillating circuits, and real-time by A/D conversion circuits
The voltage of oscillating circuit is monitored, when voltage is less than voltage U0When, pulsewidth modulation charging circuit just starts to supply to LRC oscillating circuits
Electricity, greatly reduces power consumption, can greatly prolong the service life of battery.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and detailed description.
Fig. 1 is the LRC oscillating circuit charge state circuitry figures of the field circuit of the low power consumption electromagnetic water meter of the utility model；
Fig. 2 is the LRC oscillating circuit discharge condition circuit diagrams of the field circuit of the low power consumption electromagnetic water meter of the utility model；
In figure:1. pulsewidth modulation charging circuit；2.LRC oscillating circuits；3.A/D conversion circuits.
Embodiment
The utility model is described in further detail presently in connection with attached drawing.These attached drawings are simplified schematic diagram,
Only illustrate the basic structure of the utility model in a schematic way, therefore it only shows the composition related with the utility model.
A kind of specific embodiment of the field circuit of the low power consumption electromagnetic water meter of the utility model as depicted in figs. 1 and 2,
Including：Pulsewidth modulation charging circuit 1, LRC oscillating circuits 2, A/D conversion circuits 3 and diode VD, low power consumption electromagnetic water meter are encouraged
The input terminal connection pulsewidth modulation charging circuit 1 of magnetic circuit diode VD, the excitation electricity of output terminal connection low power consumption electromagnetic water meter
The other end ground connection of the inductance L and capacitance C of road LRC oscillating circuits 2, the field circuit inductance L of low power consumption electromagnetic water meter, low-power consumption
The other end of the field circuit capacitance C of electromagnetism water meter is grounded after connecting with resistance R, the field circuit inductance of low power consumption electromagnetic water meter
One end that L and capacitance C is connected with diode VD for the A/D of the magnitude of voltage of monitoring LRC oscillating circuits 2 in real time also with changing electricity
Road 3 connects.
Preferably, the field circuit LRC oscillating circuits 2 of low power consumption electromagnetic water meter are further included encourages with low power consumption electromagnetic water meter
The switch K of magnetic circuit inductance L series connection.
The field circuit A/D conversion circuits 3 of low power consumption electromagnetic water meter monitor the voltage ＜ U of LRC oscillating circuits 20When, it is low
The field circuit pulsewidth modulation charging circuit 1 of power consumption electromagnetism water meter charges to LRC oscillating circuits 2, until magnitude of voltage reaches U0Knot
Beam charges, it is generally the case that the field circuit U of low power consumption electromagnetic water meter0=3.3V.
Specifically, A/D conversion circuits 3 monitor the voltage of LRC oscillating circuits 2 in real time, when voltage is less than U0, pulsewidth modulation fills
Circuit 1 sends pulse voltage and starts to charge to LRC oscillating circuits 2, and referring to Fig. 1, the capacitance of LRC oscillating circuits 2 constantly stores
Electricity, until the voltage that A/D conversion circuits 3 detect is equal to U0, the stopping charging of pulsewidth modulation charging circuit 1, LRC oscillating circuits 2
Start to discharge, referring to Fig. 2, power to electromagnetism water meter.The size for the voltage that pulse-width modulation circuit is detected according to A/D conversion circuits 3,
The pulse voltage of distinct pulse widths is provided, such LRC oscillating circuits 2 substantially reduce electric quantity consumption, to the battery energy of electromagnetism water meter
Amount consumption is very small, substantially prolongs the service life of battery.
It should be appreciated that specific embodiment described above is only used for explaining the utility model, it is not used to limit this reality
With new.Protection by the obvious changes or variations that the spirit of the utility model is extended out still in the utility model
Among scope.
Claims (3)
- A kind of 1. field circuit of low power consumption electromagnetic water meter, it is characterised in that including：Pulsewidth modulation charging circuit (1), LRC shakes Swing the input terminal connection pulsewidth modulation charging circuit of circuit (2), A/D conversion circuits (3) and diode VD, the diode VD (1), output terminal connects the inductance L of the LRC oscillating circuits (2) and the other end ground connection of capacitance C, the inductance L, the capacitance The other end of C is grounded after connecting with resistance R, one end that the inductance L and capacitance C are connected with diode VD also with for real-time Monitor A/D conversion circuits (3) connection of the magnitude of voltage of LRC oscillating circuits (2).
- A kind of 2. field circuit of low power consumption electromagnetic water meter according to claim 1, it is characterised in that the LRC concussions Circuit (2) further includes the switch K to connect with the inductance L.
- 3. the field circuit of a kind of low power consumption electromagnetic water meter according to claim 1 or 2, it is characterised in that the A/D turns Change the voltage ＜ U that circuit (3) monitors LRC oscillating circuits (2)0When, the pulsewidth modulation charging circuit (1) shakes electricity to LRC Road (2) is charged, until magnitude of voltage reaches U0Complete charge, wherein U0=3.3V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721364508.5U CN207234477U (en) | 2017-10-20 | 2017-10-20 | A kind of field circuit of low power consumption electromagnetic water meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721364508.5U CN207234477U (en) | 2017-10-20 | 2017-10-20 | A kind of field circuit of low power consumption electromagnetic water meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207234477U true CN207234477U (en) | 2018-04-13 |
Family
ID=61851694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721364508.5U Active CN207234477U (en) | 2017-10-20 | 2017-10-20 | A kind of field circuit of low power consumption electromagnetic water meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207234477U (en) |
-
2017
- 2017-10-20 CN CN201721364508.5U patent/CN207234477U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2834346C (en) | Method and apparatus for supplying electricity to a meter by the help of a reading device | |
| TWI364901B (en) | Uninterruptible power supply with low power loss | |
| CN104034373B (en) | Self-charging type electromagnetic flowmeter | |
| CN103944250A (en) | Battery passivation preventing circuit of single-phase intelligent electric energy meter | |
| CN207234477U (en) | A kind of field circuit of low power consumption electromagnetic water meter | |
| CN105305650A (en) | Wireless charging method and device, wireless charger and wearable device | |
| CN201138218Y (en) | Intelligent liquid flow meter | |
| CN205785367U (en) | Electromagnetism water meter | |
| CN202772241U (en) | Anti-passivation circuit for battery of electric energy meter | |
| CN108062155A (en) | A kind of electric energy meter MCU power supply circuits | |
| CN105375586A (en) | Battery charge and discharge management device and metering instrument manufactured by the same | |
| CN201707388U (en) | Portable direct-current storage battery voltage measurement device | |
| CN102063765A (en) | Water meter management system capable of realizing step water price | |
| CN208723787U (en) | A kind of booster circuit | |
| CN204065759U (en) | Water saving measuring apparatus | |
| CN206948010U (en) | Ultrasonic wave gas meter | |
| CN203733219U (en) | Direct-reading teletransmission valve control water meter | |
| CN206192538U (en) | Intelligent ammeter's electrical power generating system | |
| CN208140217U (en) | A kind of super low-power consumption miniaturized electronic water gauge | |
| CN202159083U (en) | Electricity stealing resistant electricity meter | |
| CN106908625B (en) | A kind of road acceleration sensing node of wireless transmission | |
| CN102904304B (en) | Capacity detection system of storage battery | |
| CN206876243U (en) | A kind of water meter and its metering circuit | |
| CN203414128U (en) | Flow meter gauge outfit circuit device with self-powered device | |
| CN202471832U (en) | Electric quantity metering device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |