CN108254036A - Two photoelectric tube flow sensor for countering and its operation method - Google Patents
Two photoelectric tube flow sensor for countering and its operation method Download PDFInfo
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- CN108254036A CN108254036A CN201810309319.0A CN201810309319A CN108254036A CN 108254036 A CN108254036 A CN 108254036A CN 201810309319 A CN201810309319 A CN 201810309319A CN 108254036 A CN108254036 A CN 108254036A
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- Prior art keywords
- photoelectric tube
- photoelectric
- gear
- month
- countering
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/07—Integration to give total flow, e.g. using mechanically-operated integrating mechanism
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The present invention provides a kind of two photoelectric tube flow sensor for countering and its operation method.The two photoelectric tube flow sensor for countering includes the counter being made of multiple counting wheel discs, the gear train for driving each counter wheel disc spins, half a month gear, half a month gear shaft, pcb board, two photoelectric tubes.The operation method of the two photoelectric tube flow sensor for countering includes regular startups, analog signal conversion digital signal, judgement half a month gear rotating cycle, calculating flow.The two photoelectric tube flow sensor for countering and its operation method provided by the invention solve the prior art mechanical count is converted to electric signal mode easily interfered by external magnetic field or it is of high cost, count the technical issues of inaccurate.
Description
Technical field
The present invention relates to signal conversion equipment fields, and in particular to a kind of two photoelectric tube flow sensor for countering.
Background technology
The instrument of the metered flows such as current gas meter, flow meter, water meter is mostly Purely mechanical, to realize IC card pre-payment, nothing
The functions such as line teletransmission, it is necessary to install electric auxiliary devices additional to read the numerical value of mechanical gear, mechanical count is converted into telecommunications
Number.
The conversion regime of the prior art is broadly divided into two classes：
First, conversion in real time：The signal element real-time working of the electromechanical conversion element of auxiliary device generates electromechanical transformation signal, by
Auxiliary device records tolerance in real time.Typically using tongue tube sensor, Hall sensor, magnetoresistive sensor, magnetic signal is detected
Pulse is converted into volume flow.
2nd, direct-reading is converted：The electromechanical conversion element of auxiliary device is read specifically directly from the mechanical counter of gas meter, flow meter
Numerical value.Photoelectric tube typically is installed in each gear of dial plate, the numerical value in counter is obtained by coding disk.
But above two conversion regime there are it is certain the defects of：The mode of implementation conversion is all magnetic due to use
Sensor, when operation, are easily interfered by external magnetic field；
The mode of direct-reading conversion is due to needing using a large amount of photoelectric tube（It is generally necessary to more than 30 photoelectric tubes realize data
Acquisition）, cause cost very high.And the problems such as there is likely to be by encoding the value read and inconsistent actual value.
Invention content
For solve the prior art mechanical count is converted to electric signal mode easily interfered by external magnetic field or into
This height counts the technical issues of inaccurate, and the present invention provides a kind of two photoelectric tube flow sensor for countering to solve the above problems
And its operation method.
A kind of two photoelectric tube flow sensor for countering, including counting counter, each institute of drive that wheel discs form by multiple
State the gear train of counter wheel disc spins, it is characterised in that：Further include half a month gear, half a month gear shaft, pcb board, two photoelectricity
Pipe；
An engaged gears in the half a month gear and the gear train, the pcb board it is parallel be set on the half a month gear
Side, and pass through the half a month gear shaft and be connected thereto, the half a month gear is equipped with one of arc groove concentric with it, two
The photoelectric tube is set on the pcb board, and the circumference being directed toward where the arc groove is directed toward during two photoelectric tube differences and sets
There is the arc groove and without the crossover position between the arc groove, the pcb board is equipped with photoelectric switching circuit, with the light
Fulgurite connects.
In a kind of preferred embodiment of two photoelectric tube flow sensor for countering provided by the invention, the two photoelectric tube stream
Amount sensor for countering further includes one or more transmission mechanisms, and the half a month gear passes through the transmission mechanism and the gear train
Corresponding engaged gears in system.
The operation method of two photoelectric tube flow sensor for countering provided by the invention, includes the following steps：
Step 1：Periodically the output signal of the photoelectric switching circuit is once judged, interval time is less than the half a month
Most rotation one encloses 1/3rd of the required time to gear soon；
Step 2：Described in the photoelectric tube positive sense during arc groove, the output signal of the photoelectric switching circuit is denoted as " 0 "；
When the photoelectric tube positive sense does not have the position of the arc groove, the output signal of the photoelectric switching circuit is denoted as " 1 "；
Step 3：During half a month gear rotation, the position set according to angle, the photoelectric tube shared by the arc groove is not
Together, there are the possible cycles of following four for the output signal of the photoelectric switching circuit：
(0,0), (0,1), (1,1), (1,0), (0,0) ...；
(1,1), (0,1), (1,1), (1,0), (1,1) ...；
(0,0), (0,1), (0,0), (1,0), (0,0) ...；
(1,1), (0,1), (0,0), (1,0), (1,1) ...；
Step 4：Judgement from（0,1）State change arrives（1,0）State, you can know that the half a month gear has rotated a circle；
Step 5：The half a month gear and any angular speed ratio for counting wheel disc, are multiplied by this described counter wheel and spiral
The flow to turn around, as increased flow.
Compared to the prior art, the two photoelectric tube flow sensor for countering provided by the invention is according to the half a month gear
During rotation, the feature for the light beam that the photoelectric tube is sent out can be regularly blocked, the output signal of the photoelectric tube is examined
It surveys, so as to extrapolate the flow of gas meter, flow meter.The technical issues of avoiding using caused by magnetic sensor easily by extraneous magnetic disturbance.
And two photoelectric tubes of setting are only needed, greatly reduce equipment cost.Also avoid in direct-reading transfer process generate misread ask
Topic.
It is directed toward and sets during two photoelectric tube differences in the two photoelectric tube flow sensor for countering provided by the invention
There is the arc groove and without the crossover position between the arc groove, ensure that there are one during signal intensity to determine
Signal, eliminate margin signal uncertain disturbed condition of the photoelectric tube in slot.
The photoelectric tube in the two photoelectric tube flow sensor for countering provided by the invention only needs time opening one
It is secondary, greatly reduce energy consumption.
Description of the drawings
Fig. 1 is the structure diagram that two photoelectric tube flow provided by the invention counts sensor embodiment 1；
Fig. 2 is the side view that two photoelectric tube flow provided by the invention counts sensor embodiment 1；
Fig. 3 is the vertical view that two photoelectric tube flow provided by the invention counts sensor embodiment 2.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only the part of the embodiment of the present invention, instead of all the embodiments.
Embodiment 1：
It is the structure of 1 embodiment 1 of two photoelectric tube flow sensor for countering provided by the invention respectively please refer to Fig. 1 and Fig. 2
Schematic diagram and side view.
The two photoelectric tube flow sensor for countering 1 is set on the gauge outfit of G4 gas meter, flow meters, including being made of multiple counting wheel discs 2
Counter, be made of multiple gears 3 gear train, half a month gear 4, half a month gear shaft 5,6, two photoelectric tubes 7 of pcb board.
It is described count wheel disc 2 measurement unit from right to left be respectively 0.001m3/ circle, 0.01m3/ circle ..., 10000m
3/ circle.It is driven between the counting wheel disc 2 by the gear 3, it is consistent with measurement unit so as to fulfill rotating speed, it is passed in the decimal system
Increase.
The half a month gear 4 is engaged with a gear 3, selects the half a month gear 4 of suitable diameter, makes described half
The angular speed of month gear 4 is consistent for the angular speed of the 0.01m3/ counting wheel discs 2 enclosed with measurement unit.
The side of the half a month gear 4 is vertically equipped with the pcb board 6, and the half a month gear shaft 5 is simultaneously through described half
The central and described pcb board 6 of month gear 4.
One of arc groove 41 concentric with it is offered on this month gear 4, the angle of the arc groove 41 is 195 °,
Width is slightly over the diameter of 7 light beam of photoelectric tube.
Two photoelectric tubes 7 are set on the pcb board 6.When the arc groove 41 is directed toward vertical top, described in two
Photoelectric tube 7 is located at the arc groove 41 counted since edge 5 °, 190 ° of position respectively.
The pcb board 6 is equipped with photoelectric switching circuit 61, acquires the analog signal of the photoelectric tube 7, and export digital letter
Number.
When the two photoelectric tube flow sensor for countering 1 is run, the gear 3 drives 4 synchronous rotary of half a month gear.
The light beam that the photoelectric tube 7 is sent out just is being blocked and switched between the arc groove 41 by the half a month gear 4.
When the light beam that the photoelectric tube 7 is sent out runs through the arc groove 41, the photoelectric switching circuit output signal " 0 "；
When the light beam that the photoelectric tube 7 is sent out is blocked by the half a month gear 4, the photoelectric switching circuit output signal " 1 ".
When the half a month gear 4 rotates, output terminal just recycles output signals below：
(0,0), (0,1), (0,0), (1,0), (0,0) ....
Whenever signal becomes (1,0) once from (0,1), just illustrate that the half a month gear 4 has rotated a circle, i.e. measurement unit
The counting wheel disc 2 for 0.01m3/ circles has rotated a circle, i.e. gas flow increases 0.01m3.By accumulated signal from (0,
1) become the number of (1,0), you can extrapolate the total flow of combustion gas.
The maximum stream flow of G4 gas meter, flow meters be 6m3/ hour, convert flow away 0.01m3 needs 62.5 seconds.Therefore every 20 seconds
One-time detection is carried out to the output signal of the photoelectric switching circuit, you can guarantee will not missing inspection.
Embodiment 2：
Referring to Fig. 3, it is the vertical view that two photoelectric tube flow provided by the invention counts sensor embodiment 2.
The two photoelectric tube flow sensor for countering 1 is set on the gauge outfit of G4 gas meter, flow meters, including being made of multiple counting wheel discs 2
Counter, be made of multiple gears 3 gear train, half a month gear 4, half a month gear shaft 5,6, two photoelectric tubes 7 of pcb board,
Transmission shaft 8.
It is described count wheel disc 2 measurement unit from right to left be respectively 0.001m3/ circle, 0.01m3/ circle ..., 10000m
3/ circle.It is driven between the counting wheel disc 2 by the gear 3, it is consistent with measurement unit so as to fulfill rotating speed, it is passed in the decimal system
Increase.
The both ends of the transmission shaft 8 are respectively equipped with a transmission gear, two transmission gears respectively with the gear
A gear, the half a month gear 4 in system connect.The half a month gear 4 of suitable diameter is selected, makes the half a month gear
4 angular speed is consistent for the angular speed of the counting wheel disc 2 of 0.01m3/ circles with measurement unit.
Other structures are with consistent in embodiment 1, and therefore not to repeat here.
Compared to the prior art, the two photoelectric tube flow sensor for countering 1 provided by the invention is according to the half a month tooth
During 4 rotation of wheel, can regularly block the feature of light beam that the photoelectric tube 7 is sent out, to the output signal of the photoelectric tube 7 into
Row detection, so as to extrapolate the flow of gas meter, flow meter.Avoid using caused by magnetic sensor easily by the technology of extraneous magnetic disturbance
Problem.And two photoelectric tubes of setting are only needed, greatly reduce equipment cost.It also avoids generating in direct-reading transfer process and misread
The problem of.
Two in the two photoelectric tube flow sensor for countering 1 provided by the invention photoelectric tubes 7 are directed toward when different
Equipped with the arc groove and without the crossover position between the arc groove, ensure exist during becoming (1,0) in (0,1)
One determining（0,0）Or（1,1）, eliminate margin signal uncertain disturbed condition of the photoelectric tube in slot.
The photoelectric tube 7 in the two photoelectric tube flow sensor for countering 1 provided by the invention only needs time opening
Once, energy consumption is greatly reduced.
The foregoing is merely the embodiment of the present invention, are not intended to limit the scope of the invention, every to utilize this hair
The equivalent structure or equivalent flow shift that bright description is made directly or indirectly is used in other relevant technology necks
Domain is similarly included within the scope of patent protection of the present invention.
Claims (3)
1. a kind of two photoelectric tube flow sensor for countering, including be made of multiple counting wheel discs counter, drive it is each described
The gear train of counter wheel disc spins, it is characterised in that：Further include half a month gear, half a month gear shaft, pcb board, two photoelectric tubes；
An engaged gears in the half a month gear and the gear train, the pcb board it is parallel be set on the half a month gear
Side, and pass through the half a month gear shaft and be connected thereto, the half a month gear is equipped with one of arc groove concentric with it, two
The photoelectric tube is set on the pcb board, and the circumference being directed toward where the arc groove is directed toward during two photoelectric tube differences and sets
There is the arc groove and without the crossover position between the arc groove, the pcb board is equipped with photoelectric switching circuit, with the light
Fulgurite connects.
2. two photoelectric tube flow sensor for countering according to claim 1, it is characterised in that：The two photoelectric tube flowmeter
Number sensor further includes one or more transmission mechanisms, and the half a month gear passes through in the transmission mechanism and the gear train
Corresponding engaged gears.
3. the operation method of two photoelectric tube flow sensor for countering described in claims 1 or 2, which is characterized in that including following step
Suddenly：
Step 1：Periodically the output signal of the photoelectric switching circuit is once judged, interval time is less than the half a month
Most rotation one encloses 1/3rd of the required time to gear soon；
Step 2：Described in the photoelectric tube positive sense during arc groove, the output signal of the photoelectric switching circuit is denoted as " 0 "；
When the photoelectric tube positive sense does not have the position of the arc groove, the output signal of the photoelectric switching circuit is denoted as " 1 "；
Step 3：During half a month gear rotation, the position set according to angle, the photoelectric tube shared by the arc groove is not
Together, there are the possible cycles of following four for the output signal of the photoelectric switching circuit：
(0,0), (0,1), (1,1), (1,0), (0,0) ...；
(1,1), (0,1), (1,1), (1,0), (1,1) ...；
(0,0), (0,1), (0,0), (1,0), (0,0) ...；
(1,1), (0,1), (0,0), (1,0), (1,1) ...；
Step 4：Judgement from（0,1）State change arrives（1,0）State, you can know that the half a month gear has rotated a circle；
Step 5：The half a month gear and any angular speed ratio for counting wheel disc, are multiplied by this described counter wheel and spiral
The flow to turn around, as increased flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810309319.0A CN108254036A (en) | 2018-05-04 | 2018-05-04 | Two photoelectric tube flow sensor for countering and its operation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810309319.0A CN108254036A (en) | 2018-05-04 | 2018-05-04 | Two photoelectric tube flow sensor for countering and its operation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108254036A true CN108254036A (en) | 2018-07-06 |
Family
ID=62747998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810309319.0A Pending CN108254036A (en) | 2018-05-04 | 2018-05-04 | Two photoelectric tube flow sensor for countering and its operation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108254036A (en) |
-
2018
- 2018-05-04 CN CN201810309319.0A patent/CN108254036A/en active Pending
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