CN211291589U - Gas metering and sampling device based on Hall sensor - Google Patents
Gas metering and sampling device based on Hall sensor Download PDFInfo
- Publication number
- CN211291589U CN211291589U CN201922272328.XU CN201922272328U CN211291589U CN 211291589 U CN211291589 U CN 211291589U CN 201922272328 U CN201922272328 U CN 201922272328U CN 211291589 U CN211291589 U CN 211291589U
- Authority
- CN
- China
- Prior art keywords
- sampling
- hall device
- hall
- magnetic
- controller
- 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
Images
Landscapes
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
The utility model discloses a gas metering and sampling device based on a Hall sensor, which comprises a sampling Hall device, a magnetic protection Hall device, a digital gear and a controller; the digital gear comprises a plurality of character wheels with magnetic cores, the number digits of the character wheels from left to right are sequentially reduced, and 0-9 digits are uniformly distributed on each character wheel; a magnetic core is arranged between any two digits of the second character wheel from right to left, the sampling Hall device is arranged right below the second character wheel from right to left, and the magnetic protection Hall device is arranged on the left side of the sampling Hall device; the sampling Hall device and the magnetic protection Hall device are respectively connected with the controller through wires. The utility model has the advantages of simple and reasonable structure, the processing is made conveniently, and it is low with the installation cost to make, and use cost is low, and simultaneously, this gas table inductance sampling device receives external environmental impact little, and job stabilization is reliable, has improved the accuracy of measurement, is fit for using widely on a large scale.
Description
Technical Field
The utility model belongs to the technical field of the gas measurement, in particular to gas measurement sampling device based on hall sensor.
Background
At present, the gas meter mostly adopts the principle of reed pipe counting, namely, the reed pipe is sucked and the counting is realized by adopting a magnetic field generated by magnetic steel. Install the magnet steel on the count wheel, when the magnet steel on the count wheel turned to the position that is close the tongue tube, under the effect of magnet steel, two sheetmetals of tongue tube inhale with, note a number of times, rotate the round when the count wheel, note the second number of times again when the magnet steel is close the tongue tube once more to realize the measurement of gas.
The utility model discloses people find in research that the traditional gas meter metering structure has at least the following defects in the using process; the traditional gas meter metering mode depends on magnetic force to carry out technology, and the metering mode is easily interfered by an external magnetic field to influence a counting result, so that the accuracy of the technology is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a simple structure is reasonable, and it is convenient to process manufacturing, and it is low with the installation cost to make, and use cost is low, and simultaneously, this gas table inductance sampling device receives external environmental impact little, and job stabilization is reliable, has improved the accuracy of measurement, is fit for using widely on a large scale based on hall sensor's gas measurement sampling device.
The purpose of the utility model is realized through the following technical scheme: the gas metering and sampling device based on the Hall sensor comprises a sampling Hall device, a magnetic protection Hall device, a digital gear and a controller;
the digital gear comprises a plurality of character wheels with magnetic cores, the number digits of the character wheels from left to right are sequentially reduced, and 0-9 digits are uniformly distributed on each character wheel; a magnetic core is arranged between any two digits of the second character wheel from right to left, the sampling Hall device is arranged right below the second character wheel from right to left, and the magnetic protection Hall device is arranged on the left side of the sampling Hall device; the sampling Hall device and the magnetic protection Hall device are respectively connected with the controller through wires.
Furthermore, the sampling Hall device and the magnetic protection Hall device are integrated on the Hall sampling plate, and one end of the sampling Hall device is connected with 3.3V input voltage through a capacitor C1 and a resistor R1; the other end is a sampling signal output end which is connected with the controller; one end of the magnetic sensing Hall device is grounded, and the other end of the magnetic sensing Hall device is a magnetic protection signal output end and is connected with the controller.
Further, the controller employs STM8L052R 8.
The utility model has the advantages that: the utility model provides a gas measurement sampling device based on hall sensor, this sampling device simple structure is reasonable, and processing manufacturing is convenient, makes with the installation cost low, and use cost is low, and simultaneously, this gas table inductance sampling device receives external environmental impact little, and job stabilization is reliable, has improved the accuracy of measurement, is fit for using widely on a large scale.
Drawings
FIG. 1 is a schematic structural view of a gas metering and sampling device of the present invention;
fig. 2 is the circuit diagram of the gas metering and sampling device of the utility model.
Detailed Description
The technical scheme of the utility model is further explained in the following with the attached drawings.
As shown in FIG. 1, the gas metering and sampling device based on the Hall sensor comprises a sampling Hall device, a magnetic protection Hall device, a digital gear and a controller;
the digital gear comprises a plurality of character wheels with magnetic cores, the number digits of the character wheels from left to right are sequentially reduced, and 0-9 digits are uniformly distributed on each character wheel; a magnetic core is arranged between any two digits of the second character wheel from right to left, the sampling Hall device is arranged right below the second character wheel from right to left, and the magnetic protection Hall device is arranged on the left side of the sampling Hall device; the sampling Hall device and the magnetic protection Hall device are respectively connected with the controller through wires.
Furthermore, the sampling Hall device and the magnetic protection Hall device are integrated on the Hall sampling plate, and one end of the sampling Hall device is connected with 3.3V input voltage through a capacitor C1 and a resistor R1; the other end is a sampling signal output end which is connected with the controller; one end of the magnetic sensing Hall device is grounded, and the other end of the magnetic sensing Hall device is a magnetic protection signal output end and is connected with the controller.
Further, the controller employs STM8L052R8, the circuit diagram and connections to the hall sensor of which are shown in fig. 2.
The utility model discloses a theory of operation does: when the magnetic flux density (B) is greater than the operating point (BOP), the output will be on (low), and when the magnetic flux density (B) is lower than the release point (BRP), the output will be off (high).
Magnetic protection triggering conditions: when the radius of the Hall device HB on the sampling plate is 2CM, a magnetic field in the vertical direction generates magnetic flux density (when the magnet is close to the Hall device), the Hall device sends a signal, and the controller controls the display screen to react after receiving the signal.
Metering triggering conditions are as follows: when the counter is provided with a character wheel with a magnetic core, and the magnetic core rotates to be vertically close to the Hall device HA on the sampling plate, the sampling Hall device sends a signal, and the controller receives the signal and controls the display screen to display the number of characters plus 1.
It will be appreciated by those of ordinary skill in the art that the embodiments described herein are intended to assist the reader in understanding the principles of the invention, and it is to be understood that the scope of the invention is not limited to such specific statements and embodiments. Those skilled in the art can make various other specific modifications and combinations based on the teachings of the present invention without departing from the spirit of the invention, and such modifications and combinations are still within the scope of the invention.
Claims (3)
1. The gas metering and sampling device based on the Hall sensor is characterized by comprising a sampling Hall device, a magnetic protection Hall device, a digital gear and a controller;
the digital gear comprises a plurality of character wheels with magnetic cores, the number digits of the character wheels from left to right are sequentially reduced, and 0-9 digits are uniformly distributed on each character wheel; a magnetic core is arranged between any two digits of the second character wheel from right to left, the sampling Hall device is arranged right below the second character wheel from right to left, and the magnetic protection Hall device is arranged on the left side of the sampling Hall device; the sampling Hall device and the magnetic protection Hall device are respectively connected with the controller through wires.
2. The Hall sensor-based gas metering and sampling device according to claim 1, wherein the sampling Hall device and the magnetic protection Hall device are integrated on a Hall sampling plate, and one end of the sampling Hall device is connected with a 3.3V input voltage through a capacitor C1 and a resistor R1; the other end is a sampling signal output end which is connected with the controller; one end of the magnetic protection Hall device is grounded, and the other end of the magnetic protection Hall device is a magnetic protection signal output end and is connected with the controller.
3. The hall sensor based gas metering sampling device of claim 1 wherein the controller employs STM8L052R 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922272328.XU CN211291589U (en) | 2019-12-17 | 2019-12-17 | Gas metering and sampling device based on Hall sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922272328.XU CN211291589U (en) | 2019-12-17 | 2019-12-17 | Gas metering and sampling device based on Hall sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211291589U true CN211291589U (en) | 2020-08-18 |
Family
ID=72034388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922272328.XU Active CN211291589U (en) | 2019-12-17 | 2019-12-17 | Gas metering and sampling device based on Hall sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211291589U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111238585A (en) * | 2019-12-17 | 2020-06-05 | 成都前锋电子仪器有限责任公司 | Gas metering and sampling device based on Hall sensor |
-
2019
- 2019-12-17 CN CN201922272328.XU patent/CN211291589U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111238585A (en) * | 2019-12-17 | 2020-06-05 | 成都前锋电子仪器有限责任公司 | Gas metering and sampling device based on Hall sensor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211291589U (en) | Gas metering and sampling device based on Hall sensor | |
| CN201955121U (en) | Mechanical/electronic double display turbine flowmeter | |
| CN106441466A (en) | Electromagnetic water meter | |
| CN207850448U (en) | A kind of gas meter, flow meter of the counter based on Hall sensor | |
| CN201218721Y (en) | Electronic digital display ranging wheel | |
| CN104990597A (en) | Magnetic pulse electronic water meter | |
| CN206208315U (en) | A kind of magneto-electric water meter | |
| CN203785727U (en) | Intelligent water meter and counting device thereof | |
| CN111238585A (en) | Gas metering and sampling device based on Hall sensor | |
| CN202501823U (en) | Long stroke linear displacement non-contact measuring device | |
| CN103148774A (en) | Coordinate type relative displacement detection magnetic scale used for crane cart and travelling crab | |
| CN103344310B (en) | A kind of gas meter, flow meter condition checkout gear | |
| CN207585518U (en) | A kind of rolling ruler for being used to measure length | |
| CN209945466U (en) | Direct-reading counter device based on gas meter | |
| CN203658463U (en) | Digital frequency meter based on DSP | |
| CN209673884U (en) | A kind of smart lightning counter for the defence of rural area Lightning Disaster | |
| CN200941104Y (en) | Wall-type reverse speed monitoring protective instrument | |
| CN202442720U (en) | Counter reading device for water/electricity/gas flow meter | |
| CN105261123A (en) | Wireless card type prepaid gas meter | |
| CN204214494U (en) | A kind of rotz flowmeter | |
| CN207487692U (en) | A kind of instrument structure | |
| CN204788510U (en) | Magnetic pulse formula electron water gauge | |
| CN209400612U (en) | A kind of detection circuit of space electrical field | |
| CN202533130U (en) | Number reading wheel of gauge | |
| CN105354930A (en) | Photoelectric direct-reading internet-of-things prepayment gas meter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |