CN2222903Y - Long-range water meter sensor - Google Patents
Long-range water meter sensor Download PDFInfo
- Publication number
- CN2222903Y CN2222903Y CN 94245635 CN94245635U CN2222903Y CN 2222903 Y CN2222903 Y CN 2222903Y CN 94245635 CN94245635 CN 94245635 CN 94245635 U CN94245635 U CN 94245635U CN 2222903 Y CN2222903 Y CN 2222903Y
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- magnet steel
- water meter
- magnetic steel
- sensor
- connects
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Abstract
The utility model relates to a long-range water meter sensor, which is designed for enhancing sensitivity and reliability. The long-range water meter sensor comprises a driving magnetic steel arranged on the pointer of the water meter, a driven magnetic steel corresponding to the driving magnetic steel, a magneto-sensitive element positioned at one side of the driven magnetic steel and a pulse signal output circuit. The driving magnetic steel rotates along with water stream to drive the driven magnetic steel to relatively rotate and do axial movement; the S and N poles of the driving magnetic steel confront alternatively the magneto-sensitive element. The pulse signal output circuit outputs pulse count signals. The driven magnetic steel does constant-distance suspended movement relative to the magneto-sensitive element; the driving and the driven magnetic steels do two-pole magnetic amplification, and are capable of realizing design goal and facilitating to be arranged at the outer side of the water meter body.
Description
The utility model relates to a kind of pickoff, relates to a kind of remote transmitting water meter sensor or rather.
Remote transmitting water meter is used for measuring the ducted water inventory of flowing through, it is a kind of remodeling product of pointer water meter, by sensor installation on the counter of pointer water meter, in being transferred to meter reading than digital counter at a distance, lead shows that also the switching signal that sensor can be sent is by concentrating counting in the interface circuit input computer system.Therefore, use remote transmitting water meter can improve the efficient of tabling look-up, alleviate and table look-up labour intensity and be convenient to modern management.
Existing remote transmitting water meter sensor comprises magnetic pointer and magnetic control circuit, when the remote transmitting water meter in being installed in feedwater piping has current to flow through, current enter and promote the impeller rotation in the water meter on the one hand, and the pointer that drives mechanical count mechanism through reduction gearing rotates, with the water inventory of recorded stream through water meter; On the other hand because the rotation of magnetic pointer produces the reciprocal variation of induced field, the on off state that is in magnetic pointer magnetic control element is nearby changed and send pulse signal, it is a moving week of magnetic pointer revolution, the magnetic control circuit is sent a pulse signal, again through the lead long-distance transmissions water yield.
But because sensor generally is installed in outside the water meter fore shaft, and the distance that drives between needle is bigger, and the operating distance of magnetic control element is generally less, so both can not adapt to the needs of remote transmitting water meter integral installation, thereby the sensitivity of water meter and reliability all are affected.
The purpose of this utility model is the remote transmitting water meter sensor of a kind of high sensitivity of design, high reliability, can adapt to the needs of remote transmitting water meter integral installation.
Remote transmitting water meter sensor of the present utility model constitutes by driving magnet steel, magneto sensor and pulse signal output circuit thereof, it is characterized in that:
Described driving magnet steel comprises active magnet steel that is installed on the indicator of water gauge and the driven magnet steel that is installed in the active magnet steel respective sensor seat; Described magneto sensor set a distance is fixed on by the driven magnet steel.
Described magneto sensor and pulse signal output circuit thereof are connected and composed by triode BG, hall device H, diode D, resistance R, light emitting diode BT; D is anodal just to connect power supply, and the D negative pole also connects R one end and Hall element H one end, and the R other end connects the BT positive pole, and the BT negative pole connects the BG collector, and the BG emitter connects the teletransmission lead, and the BG base stage connects Hall element H control end, Hall element H other end ground connection.
Distance≤20mm between described active magnet steel and driven magnet steel.
The active magnet steel that is installed on the indicator of water gauge is done clockwise or is rotated counterclockwise with current, drives driven magnet steel and does counterclockwise or clockwise axially-movable relatively, and further drive magneto sensor and the work of pulse signal output circuit thereof, sends count pulse.
Because driven magnet steel is made the set a distance suspended motion with respect to magneto sensor, thereby the sensitivity and the reliability of sensing have been improved, amplify and form two-stage magnetic between active magnet steel and driven magnet steel, enlarged the operating distance of sensor again, be convenient to sensor and be installed in the water meter body outside.
Further specify technology of the present utility model below in conjunction with the embodiment accompanying drawing.
Fig. 1, remote transmitting water meter structural representation
Fig. 2, remote transmitting water meter sensor electrical schematic diagram
Referring to Fig. 1,1 is pipe adapter, and 2 is the attaching nut, and 3 are lead sealing, and 4 is screw, and 5 is the water meter body, and 6 is sensor holder, and 7 is the magnetic pointer, and 8 is sensor, and 9 are the teletransmission lead, and 10 are the table lid.
Referring to Fig. 2, active magnet steel 7, driven magnet steel 11, Hall element H, triode BG, light emitting diode BT, current-limiting resistance R, protection diode D, RL is the hypothesis load, 9 is lead.
That noncontacing pickup of the present utility model has is highly sensitive, stable performance, antijamming capability are strong.Characteristics such as long distance of signal transmission can be assemblied on any bore rotor, the horizontal spiral shell wing pointer-type water meter.
Same structure also can be used in gas meter, the ammeter.
Claims (3)
1, a kind of remote transmitting water meter sensor constitutes by driving magnet steel, magneto sensor and pulse signal output circuit thereof, it is characterized in that:
Described driving magnet steel comprises active magnet steel that is installed on the indicator of water gauge and the driven magnet steel that is installed in the active magnet steel respective sensor seat; Described magneto sensor set a distance is fixed on by the driven magnet steel.
2, newspaper is according to the described remote transmitting water meter sensor of claim 1, and it is characterized in that: described magneto sensor and pulse signal output circuit thereof are connected and composed by triode BG, hall device H, diode D, resistance R, light emitting diode BT; D is anodal just to connect power supply, and the D negative pole also connects R one end and Hall element H one end, and the R other end connects the BT positive pole, and the BT negative pole connects the BG collector, and the BG emitter connects the teletransmission lead, and the BG base stage connects Hall element H control end, Hall element H other end ground connection.
3, remote transmitting water meter sensor according to claim 1 is characterized in that: the distance≤20mm between described active magnet steel and driven magnet steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94245635 CN2222903Y (en) | 1994-11-29 | 1994-11-29 | Long-range water meter sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94245635 CN2222903Y (en) | 1994-11-29 | 1994-11-29 | Long-range water meter sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2222903Y true CN2222903Y (en) | 1996-03-20 |
Family
ID=33851372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94245635 Expired - Fee Related CN2222903Y (en) | 1994-11-29 | 1994-11-29 | Long-range water meter sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2222903Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108731765A (en) * | 2018-06-01 | 2018-11-02 | 陕西九杰智能仪表有限公司 | A kind of bidirectional self-locking Hall pulse collection method |
-
1994
- 1994-11-29 CN CN 94245635 patent/CN2222903Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108731765A (en) * | 2018-06-01 | 2018-11-02 | 陕西九杰智能仪表有限公司 | A kind of bidirectional self-locking Hall pulse collection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |