CN2399707Y - Magnetic sensing protector - Google Patents
Magnetic sensing protector Download PDFInfo
- Publication number
- CN2399707Y CN2399707Y CN 99244948 CN99244948U CN2399707Y CN 2399707 Y CN2399707 Y CN 2399707Y CN 99244948 CN99244948 CN 99244948 CN 99244948 U CN99244948 U CN 99244948U CN 2399707 Y CN2399707 Y CN 2399707Y
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- Prior art keywords
- magnetic induction
- induction sensor
- magnetic
- steal
- former
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- Expired - Fee Related
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Abstract
The utility model relates to a magnetic sensing protector used for metering counting devices, particularly a magnetic sensing protector which can prevent that an external strong magnetic field is used to steal gas and steal water from a gas meter and a water meter. A magnetic induction sensor is additionally arranged on the place of the original magnetic induction sensor. When an external strong magnetic field changes the output of the original magnetic induction sensor for the normal counting of a controller, the output state of the additional magnetic induction sensor is also changed, and the controller is informed to do necessary processing. In the condition that no circuit or no element is added, the utility model can effectively prevent the problem that the external magnetic field is used to steal gas and steal water from the gas meter and the water meter.
Description
The utility model relates to magnetic sensing protective device, can be widely used in the batching counter tool, especially for preventing in using gas meter, tap water meter process, utilizes extraneous high-intensity magnetic field to steal gas, the protective device of water steathily.
The metering of measurement instrument (as gas meter, tap water meter etc.) counting uses the sensor of magnetic element as the instrument counting mostly at present.One rotatable magnet normally is installed on the counter wheel of conventional measurement instrument, one Magnetic Sensor (selecting tongue tube or Hall element) is installed near magnet, is quantitatively controlled intelligent cold-water meter as LZJ-1-20 type, IC-card that the safe Xiang electromechanical engineering in development area, Tianjin company limited produces.Its principle is: during use, the proper flow of gas or water makes magnet constantly rotate, and triggers Magnetic Sensor simultaneously and produce pulse signal and transport to controller and count, as shown in Figure 1.
This kind design is to utilize magnet rotation, the variation of own magnetic field intensity and make Magnetic Sensor export corresponding pulse signal to count to controller.And when the external world has a high-intensity magnetic field to make that Magnetic Sensor is in the triggering state, the output state of magnet rotation can't the change Magnetic Sensor on the former measurement instrument, Magnetic Sensor is triggered after resetting again, be pulse-free signal output, thereby make metering counting loss (just general said steal gas, steal water).Adopt the method for shielding, one side is thorough inadequately, on the other hand the structure more complicated.
The purpose of this utility model is to provide the magnetic sensing protective device of batching counter tool, to prevent to utilize extraneous high-intensity magnetic field to steal gas effectively, to steal water.
The utility model proposes the magnetic sensing protective device that is used for the batching counter tool, this device is to set up magnetic induction sensor at former magnetic induction sensor place, and described former magnetic induction sensor links to each other with controller respectively with the output of setting up magnetic induction sensor.The magnetic induction parameter of magnetic induction sensor of being set up and selected former magnetic induction sensor is close.The magnetic induction sensor of being set up is selected tongue tube or Hall element for use.The magnetic induction sensor of being set up, former magnetic induction sensor direction are identical, and the magnetic induction sensor of setting up is positioned at the side away from magnet.Its principle: the utility model set up again one with the close magnetic induction sensor of former magnetic induction sensor magnetic induction parameter, be positioned at by the former magnetic induction sensor, and a side away from former magnet, to be used for the detection that special impression adds high-intensity magnetic field, because of square being inversely proportional to of magnetic field intensity and distance, so the magnetic induction sensor that control is set up and the distance of former magnet make that the former magnet on the measurement instrument can not change the output state of setting up magnetic induction sensor.When extraneous high-intensity magnetic field changes former magnetic induction sensor output state (counting loss), the magnetic induction sensor of setting up also changes, and it is exported direct notification controller and takes necessary processing.As shown in Figure 2.
The principle schematic of the former metering counting of Fig. 1.
The principle schematic of Fig. 2 the utility model metering counting.
The structural representation of Fig. 3 raw coal gas meter or tap water meter.
Fig. 4 structural representation of the present utility model.
Description of drawings: 1 Magnetic Sensor, 2 controllers, 3 solenoid valves, 4 normal opened contacts, 5 normally closed contacts, 6 concentric cable.
The utility model does not increase circuit one, and two do not increase under the situation of element, can prevent stealing gas and stealing water problems at gas meter and water meter effectively.Can be widely used in various remote transmission gas meters, tap water meter, implement quantitatively effectively control.
Below in conjunction with accompanying drawing structure of the present utility model and use are elaborated.
As shown in Figure 3: controller is made of single card microcomputer 8051, will be received from the output pulse signal of Magnetic Sensor by concentric cable, transports to controller and counts.Close with magnet is former magnetic induction sensor, selects the open type tongue tube for use, its output lead through concentric cable to control unit interface P
10, P
13Concentric cable by and the former magnetic induction sensor normal opened contact and the shorting stub that connect form, shorting stub is as protection, in case artificially cut off, then controller exports solenoid valve to, can die automatically, cut off the water supply.
As shown in Figure 4: different with Fig. 3 is; save the shorting stub among Fig. 3; except possessing original anti-cut-out function; particularly increased the protection under extraneous high-intensity magnetic field; with magnet away from be the magnetic induction sensor set up; select normally closed dry reed pipe for use, its output lead through concentric cable to control unit interface P
11, P
12Concentric cable by and the former magnetic induction sensor normal opened contact that connects and the magnetic induction sensor normally closed contact set up forms, when meeting extraneous high-intensity magnetic field, normally closed contact is opened, notification controller is done necessary processing.
Claims (4)
1 is applicable to the magnetic sensing protective device of batching counter tool, it is characterized in that setting up magnetic induction sensor at former magnetic induction sensor place, and described former magnetic induction sensor links to each other with controller respectively with the output of setting up magnetic induction sensor.
2 devices as claimed in claim 1 is characterized in that the magnetic induction parameter of the magnetic induction sensor set up and selected former magnetic induction sensor is close.
3 devices as claimed in claim 1 is characterized in that the magnetic induction sensor of being set up selects tongue tube or Hall element for use.
4 devices as claimed in claim 1 is characterized in that the magnetic induction sensor of being set up, former magnetic induction sensor direction are identical; The magnetic induction sensor of setting up is positioned at the example away from magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99244948 CN2399707Y (en) | 1999-09-24 | 1999-09-24 | Magnetic sensing protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99244948 CN2399707Y (en) | 1999-09-24 | 1999-09-24 | Magnetic sensing protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2399707Y true CN2399707Y (en) | 2000-10-04 |
Family
ID=34030943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99244948 Expired - Fee Related CN2399707Y (en) | 1999-09-24 | 1999-09-24 | Magnetic sensing protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2399707Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557901A (en) * | 2013-11-20 | 2014-02-05 | 梁国栋 | Intelligent metering device with antimagnetic function |
| CN105608489A (en) * | 2015-12-16 | 2016-05-25 | 中国石油天然气股份有限公司 | Hall effect-based oil field automatic spherical pig collection counting method |
| CN107923768A (en) * | 2015-08-27 | 2018-04-17 | 萨基姆通讯能源及电信联合股份公司 | By means of coil and the counter equipped with counter equipment is come the equipment of the revolution counter to runner |
| WO2019165170A1 (en) * | 2018-02-23 | 2019-08-29 | Landis+Gyr Innovations, Inc. | Meter reading sensor using tmr and hall effect sensors |
-
1999
- 1999-09-24 CN CN 99244948 patent/CN2399707Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557901A (en) * | 2013-11-20 | 2014-02-05 | 梁国栋 | Intelligent metering device with antimagnetic function |
| CN107923768A (en) * | 2015-08-27 | 2018-04-17 | 萨基姆通讯能源及电信联合股份公司 | By means of coil and the counter equipped with counter equipment is come the equipment of the revolution counter to runner |
| CN105608489A (en) * | 2015-12-16 | 2016-05-25 | 中国石油天然气股份有限公司 | Hall effect-based oil field automatic spherical pig collection counting method |
| CN105608489B (en) * | 2015-12-16 | 2018-01-02 | 中国石油天然气股份有限公司 | Automatically ball count method is received in a kind of oil field based on Hall effect |
| WO2019165170A1 (en) * | 2018-02-23 | 2019-08-29 | Landis+Gyr Innovations, Inc. | Meter reading sensor using tmr and hall effect sensors |
| US10690519B2 (en) | 2018-02-23 | 2020-06-23 | Landis+Gyr Innovations, Inc. | Meter reading sensor using TMR and hall effect sensors |
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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 |