CN208091525U - The sampling display device and its gas meter, flow meter of electronics temperature compensation diaphragm gas meter - Google Patents
The sampling display device and its gas meter, flow meter of electronics temperature compensation diaphragm gas meter Download PDFInfo
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- CN208091525U CN208091525U CN201820653160.XU CN201820653160U CN208091525U CN 208091525 U CN208091525 U CN 208091525U CN 201820653160 U CN201820653160 U CN 201820653160U CN 208091525 U CN208091525 U CN 208091525U
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Abstract
The utility model is related to the sampling display devices of electronics temperature compensation diaphragm gas meter, belong to technology of instrument and meter field, solve the problems, such as that accuracy is low when existing sampling display device leads to detecting gas meter, it includes microcontroller and liquid crystal display to solve the problems, such as this technical solution mainly, liquid crystal display includes circuit board, power supply and LED charactrons, it is in the first circuit that user mode is shown that circuit board, which includes for controlling LED charactrons, and the second servo loop shown in detection pattern for controlling LED charactrons；The advantages of the utility model：LED charactrons are controlled by the first circuit to show in user mode, liquid crystal display resolving power is relatively low at this time, can meet the needs of low-power consumption and meter reading, LED charactrons are controlled by second servo loop to show in detection pattern, liquid crystal display resolving power improves at this time, can meet calibrating demand, in addition, the invention also discloses a kind of gas meter, flow meters, including above-mentioned sampling display device.
Description
Technical field
The utility model is related to technology of instrument and meter fields, and in particular to the sampling display dress of electronics temperature compensation diaphragm gas meter
It sets and its gas meter, flow meter.
Background technology
Existing conventional electronics temperature compensation table is mounted on magnet steel on the tail wheel of mechanical counter, and when ventilation operates, and works as magnetic
Hall element of the steel in control system, high magnetic flux trigger Hall element and are attracted counting, to convert mechanical reading
It is read for electronic impulse.Rotate one it is whole 1 circle, operating mode volume be 10 liters, electronic impulse reading be 1 time, impulse ratio be 10 liters/
It is secondary.Operating mode volume is converted to 20 DEG C of volume by the temperature value that gas is collected by temperature sensor.Since gas meter, flow meter uses
Time limit is 10 years, considers that liquid crystal numerical value is unable to back to zero, so generally 8 digits, 6 are integers, and 2 are decimal, point of liquid crystal
Distinguish that power is 0.01m3, i.e., 10 liters, resolving power is 10 liters, is accumulated to 10 liters or more, can just be shown on liquid crystal, conventional adopts
Sample display device brings very large deviation to verification test, such as standard test volume is 100 liters, and practical temperature compensation volume is 99.9
It rises, because liquid crystal resolving power is 10 liters, the reading being shown on liquid crystal is 90 liters, according to error=(tested meter reading-standard reading
Number)/reading of standard * 100% come calculate temperature compensation table test error value be -10%, but actual error be -0.1%, seriously affect
The accuracy of temperature compensation table calibrating.
In addition, publication date is the Chinese patent of CN201420353353.5, a kind of electron temperature amendment membrane type combustion is disclosed
Gas meter flow sampling device, including sealing shroud, magnet steel holder, impulse sampling sensor and multiple magnet steel, sealing shroud are cylinder,
Sealing shroud one end is closed, another end opening；Impulse sampling sensor is fixed on fixed frame, and fixed frame is fixed on opening for sealing shroud
In mouthful；The pulse signal-line of impulse sampling sensor is pierced by fixed frame；The periphery of sealing shroud is equipped with magnet steel holder, sealing
It covers end and is equipped with flange；Multiple magnet steel are uniformly arranged on the circumference of magnet steel holder；It is fixed with shift fork on magnet steel holder, although solving
Resolving power, but complicated, of high cost, power consumption is big, and flow is easy greatly miscount, without mechanical counter, when abnormal without
Method analyzes multilevel iudge.
Utility model content
The technical problems to be solved in the utility model be just to provide electronics temperature compensation diaphragm gas meter sampling display device and
Its gas meter, flow meter solves accuracy low technical problem when existing sampling display device leads to detecting gas meter.
In order to solve the above-mentioned technical problem, the utility model is achieved through the following technical solutions:Electronics temperature compensation membrane type
The sampling display device of gas meter, flow meter, including microcontroller and the liquid crystal display that is connected with microcontroller, the liquid crystal display include
Circuit board, power supply and multiple LED charactrons being intervally arranged, the circuit board include for controlling LED charactrons in use
The first circuit that family pattern is shown, and for controlling LED charactrons be in the second servo loop that shows of detection pattern, described first time
Road and second servo loop are electrically connected with power supply.
Preferably, the circuit board further includes button switch, and the button switch is arranged on second servo loop, passes through button
It switchs to control the conducting and disconnection of second servo loop.
Preferably, first circuit includes first resistor, the first LED charactrons indicator light and the first triode amplification electricity
Road, the second servo loop include second resistance, the second LED charactrons indicator light and the second transistor amplifier, the circuit
Plate further includes 3rd resistor, the 4th resistance and ground terminal, and the collector of first transistor amplifier is through first resistor,
One LED charactrons indicator light is connected with power supply, and the transmitting collection of first transistor amplifier is connected with ground terminal, institute
The base stage for stating the first transistor amplifier is connected through the 4th resistance with second servo loop, the collection of second transistor amplifier
Electrode is connected through second resistance, the second LED charactrons indicator light with power supply, the transmitting of second transistor amplifier
Collection is connected with ground terminal, and the base stage of second transistor amplifier is connected through 3rd resistor with one end of button switch, institute
The other end for stating button switch is connected with power supply.
Preferably, the liquid crystal display further includes backlight, the backlight and monolithic mechatronics, when the first circuit
Microcontroller control backlight does not shine when conducting, and when second servo loop is connected, microcontroller control backlight shines.
Preferably, the sampling display device further includes shell, and the circuit board, power supply, LED charactrons are respectively provided with
In shell.
Gas meter, flow meter, including controller are equipped with above-mentioned sampling display device in the controller.
In conclusion the advantages of the utility model：1. by the first circuit LED charactrons are controlled to show in user mode,
Since user mode need to only show+2 decimals of 6 integers, i.e. resolving power is 0.01m3I.e. 10 liters, liquid crystal display resolution at this time
Power is low, the needs of so as to meet low-power consumption and meter reading, controls LED charactrons by second servo loop and is shown in detection pattern,
Since detection pattern need to show+4 decimals of 4 integers, i.e. resolving power is 0.0001m3I.e. 0.1 liter, liquid crystal display point at this time
It distinguishes that power improves, therefore calibrating demand can be met, LED charactrons are controlled by the first circuit and second servo loop, make LED
Charactron mutually switches between user mode and detection pattern, simplifies whole structure, easy to assembly, is conducive to safeguard；
2. button switch is arranged on second servo loop, the conducting and disconnection of second servo loop are controlled by button switch, is made
Circuit board is defaulted as the conducting of the first circuit, to make liquid crystal display enter user mode, when pressing button switch, makes second
High level conducting in circuit, to quickly realize being switched fast for user mode and detection pattern；
3. the setting of 3rd resistor and the 4th resistance can be limited effectively and flow into the first transistor amplifier and the two or three
Electric current in pole pipe amplifying circuit, it is ensured that the first circuit and the mutually independent conducting of second servo loop；
4. the setting of backlight can improve the visual effect of liquid crystal display, and pass through monolithic when the first circuit is connected
Machine control backlight does not shine, and can effectively save power consumption, reduce use cost, pass through single machine machine when second servo loop is connected
It controls backlight to shine, operating personnel read when to be conducive to calibrating, improve the accuracy of test, and whole flexibility ratio is high；
5. the setting of shell can realize the unified installation settings of circuit board, power supply, LED charactrons, avoid LED
Charactron exposes in air, reduces the damage of LED charactrons, improves whole service life, and shell can realize liquid
The Fast Installation of crystal display screen.
Description of the drawings
The utility model is described in further detail below in conjunction with the accompanying drawings：
Fig. 1 is the structural schematic diagram of the sampling display device of the utility model electronics temperature compensation diaphragm gas meter；
Fig. 2 is the structural schematic diagram of the utility model circuit board；
Fig. 3 is the structural schematic diagram of the utility model gas meter, flow meter.
Reference numeral：
1 microcontroller, 2 liquid crystal displays, 21 circuit boards, 22 power supplies, 23LED charactrons, 24 3rd resistors, 25 the 4th
Resistance, 26 ground terminals, 27 backlights, 3 first circuits, 31 first resistors, 32 first LED charactrons indicator lights, 33 the 1st poles
Pipe amplifying circuit, 4 second servo loops, 41 second resistances, 42 second LED charactrons indicator lights, 43 second transistor amplifiers, 5
Button switch, 6 shells, 7 controllers, 70 base table shells, 71 temperature sensors, 72 mechanical counters, 73 magnet steel, 74 base tables.
Specific implementation mode
As shown in Figure 1 and Figure 2, the sampling display device of electronics temperature compensation diaphragm gas meter, including microcontroller 1 and with microcontroller 1
Connected liquid crystal display 2, the liquid crystal display 2 include circuit board 21, power supply 22 and multiple LED numbers being intervally arranged
Code pipe 23, it is in the first circuit 3 that user mode is shown that the circuit board 21, which includes for controlling LED charactrons 23, and is used for
Control LED charactrons 23 are in the second servo loop 4 that shows of detection pattern, and first circuit 3 and second servo loop 4 are and power supply
22 electrical connections, make LED charactrons 23 be shown in user mode, since user mode need to only show 6 integers by the first circuit 3
+ 2 decimals, i.e. resolving power are 0.01m3I.e. 10 liters, liquid crystal display resolving power is low at this time, so as to meet low-power consumption and copy
The demand of table makes LED charactrons 23 be shown in detection pattern by second servo loop 4, since detection pattern need to show 4 integers+4
Position decimal, i.e. resolving power are 0.0001m3I.e. 0.1 liter, liquid crystal display resolving power improves at this time, therefore can meet calibrating demand,
LED charactrons 23 are controlled by the first circuit 3 and second servo loop 4, make LED charactrons 23 in user mode and detection
Mutually switch between pattern, simplifies whole structure, it is easy to assembly, be conducive to safeguard.
The circuit board 21 further includes button switch 5, and the button switch 5 is arranged on second servo loop 4, is opened by button
5 are closed to control the conducting and disconnection of second servo loop 4, the conducting and disconnection of second servo loop 4 are controlled by button switch 5, makes electricity
Road plate 21 is defaulted as the conducting of the first circuit 3, makes when pressing button switch 5 to make liquid crystal display 2 enter user mode
High level conducting in second servo loop 4, to quickly realize being switched fast for user mode and detection pattern.
In addition, first circuit 3 is put including first resistor 31, the first LED charactrons indicator light 32 and the first triode
Big circuit 33, the second servo loop 4 include second resistance 41, the second LED charactrons indicator light 42 and the second triode amplification electricity
Road 43, the circuit board 21 further include 3rd resistor 24, the 4th resistance 25 and ground terminal 26, first transistor amplifier
33 collector is connected through first resistor 31, the first LED charactrons indicator light 32 with power supply 22, and first triode is put
The transmitting collection of big circuit 33 is connected with ground terminal 26, and the base stage of first transistor amplifier 33 is through the 4th resistance 25 and the
Secondary circuit 4 is connected, and the collector of second transistor amplifier 43 is through second resistance 41, the second LED charactrons indicator light
42 are connected with power supply 22, and the transmitting collection of second transistor amplifier 43 is connected with ground terminal 26, and the described 2nd 3
The base stage of pole pipe amplifying circuit 43 is connected through 3rd resistor 24 with one end of button switch 5, the other end of the button switch 5 with
Power supply 22 is connected, the setting of 3rd resistor 24 and the 4th resistance 25, can effectively limit and flow into the first triode amplification electricity
Electric current in road and the second transistor amplifier, it is ensured that the 4 mutually independent conducting of the first circuit 3 and second servo loop passes through
Lighting to control the resolving power that LED charactrons are shown in user mode for first LED charactrons indicator light 32, passes through the 2nd LED
Lighting to control the resolving power that LED charactrons are shown in detection pattern for charactron indicator light 42, enables LED charactrons to show not
With resolving power, as depicted in figs. 1 and 2, liquid crystal display 2 be in user mode when routine use, and the first LED charactrons indicate
32 place circuit high level conducting of lamp, the first LED charactrons indicator light 32 is bright, 42 place circuit of the second LED charactrons indicator light
It not being formed into a loop, the second LED charactrons indicator light 42 does not work, at this point, liquid crystal display 2 can show+2 decimals of 6 integers, point
Distinguish that power is 0.01m3I.e. 10 liters, meet the requirement read when daily meter reading trade, when pressing button switch 5, into detection mould
Formula, 42 lamp of the second LED charactrons indicator light on second servo loop 4 is bright, at this point, 42 place circuit of the second LED charactrons indicator light
High level is connected, and the second LED charactrons indicator light 42 is bright, and the first circuit 3 where the first LED charactrons indicator light 32 is not formed
Circuit, the first LED charactrons indicator light 32 do not work, at this point, liquid crystal display 2 can show that+4 decimals of 4 certificates, resolving power are
0.0001m3I.e. 0.1 liter, detection can be met and used, in production process, due to gas meter, flow meter need to first pass through after detection could continuously by
Firmly button switch 5 make second servo loop 4 be connected, and liquid crystal display 2 enters detection pattern, after detection is completed 12 hours, liquid crystal display
Screen 2 is automatically into user mode.
The liquid crystal display 2 further includes backlight 27, and the backlight 27 is electrically connected with microcontroller 1, when the first circuit 3
Microcontroller 1 controls backlight 27 and does not shine when conducting, and when second servo loop 4 is connected, microcontroller 1 controls backlight 27 and shines, and can carry
The visual effect of high liquid crystal display 2 is not sent out in use, controlling backlight 27 by microcontroller 1 when the first circuit 3 is connected
Light can effectively save power consumption, reduce use cost, and controlling backlight 27 by single machine machine when second servo loop 4 is connected sends out
Light, operating personnel read when to be conducive to calibrating, improve the accuracy of test, and whole flexibility ratio is high, the sampling display
Device further includes shell 6, and the circuit board 21, power supply 22, LED charactrons 23 are arranged in shell 6, can realize circuit
The unified installation settings of plate 21, power supply 22, LED charactrons 23 avoids the exposure of LED charactrons 23 in air, reduces
The damage of LED charactrons 23, improves whole service life, and shell 6 can realize the Fast Installation of liquid crystal display 2.
As shown in figure 3, gas meter, flow meter, including controller 7, above-mentioned sampling display device is installed in the controller 7, separately
Outside, the gas meter, flow meter further includes base table shell 70, temperature sensor 71, mechanical counter 72, magnet steel 73 and base table 74, the control
Device 7 and base table 74 processed are mounted on base table shell 70, and the temperature sensor 71 is arranged inside base table 74, the mechanical counter
72 are mounted on base table 74, and magnet steel 73 is fixedly connected on mechanical counter 72, and when routine use, liquid crystal display 2, which is in, to be used
Family pattern, when gas by when, 74 internal drive element of base table drive mechanical counter 72 rotate, magnet steel 73 is with mechanical counter
72 rotations, after rotation 1 is enclosed, microcontroller 1 detects that operating mode volume is 10 liters or more, according to 71 collected gas of temperature sensor
Temperature is converted into 20 DEG C of bulking value and is shown on liquid crystal display 2, and the resolving power of liquid crystal display 2 is 10 liters at this time
Or it is lower, when gauging error, detection pattern is switched to by button switch 5, each operating mode volume turns to be counted as 20 DEG C of volume
Value, the resolving power of liquid crystal becomes 0.1 liter or higher at this time, and real-time display may be used also on liquid crystal display 2 on liquid crystal display 2
With displays temperature value, be conducive to analyze and determine, reduce trade dispute.
In addition to above preferred embodiment, the utility model also has other embodiments, and those skilled in the art can root
It is made various changes and modifications according to the utility model, without departing from the spirit of the utility model, the utility model should all be belonged to
Range defined in appended claims.
Claims (6)
1. the sampling display device of electronics temperature compensation diaphragm gas meter, including microcontroller and the liquid crystal display that is connected with microcontroller,
It is characterized in that：The liquid crystal display includes circuit board, power supply and multiple LED charactrons being intervally arranged, the electricity
It is in the first circuit that user mode is shown that road plate, which includes for controlling LED charactrons, and for controlling LED charactrons in detection
The second servo loop that pattern is shown, first circuit and second servo loop are electrically connected with power supply.
2. the sampling display device of electronics temperature compensation diaphragm gas meter according to claim 1, it is characterised in that：The circuit
Plate further includes button switch, and the button switch is arranged on second servo loop, and leading for second servo loop is controlled by button switch
On and off is opened.
3. the sampling display device of electronics temperature compensation diaphragm gas meter according to claim 2, it is characterised in that：Described first
Circuit includes first resistor, the first LED charactrons indicator light and the first transistor amplifier, and the second servo loop includes second
Resistance, the second LED charactrons indicator light and the second transistor amplifier, the circuit board further include 3rd resistor, the 4th electricity
Resistance and ground terminal, the collector of first transistor amplifier is through first resistor, the first LED charactrons indicator light and power supply
Power supply is connected, and the transmitting collection of first transistor amplifier is connected with ground terminal, first transistor amplifier
Base stage is connected through the 4th resistance with second servo loop, and the collector of second transistor amplifier is through second resistance, the 2nd LED
Charactron indicator light is connected with power supply, and the transmitting collection of second transistor amplifier is connected with ground terminal, and described
The base stage of two transistor amplifiers is connected through 3rd resistor with one end of button switch, the other end of the button switch and confession
Power supply is connected.
4. the sampling display device of electronics temperature compensation diaphragm gas meter according to claim 1, it is characterised in that：The liquid crystal
Display screen further includes backlight, and the backlight and monolithic mechatronics, when the first circuit is connected, microcontroller controls backlight
It does not shine, when second servo loop is connected, microcontroller control backlight shines.
5. the sampling display device of electronics temperature compensation diaphragm gas meter according to claim 1, it is characterised in that：The sampling
Display device further includes shell, and the circuit board, power supply, LED charactrons are arranged in shell.
6. gas meter, flow meter, including controller, it is characterised in that：The sampling of any one of claim 1-5 is installed in the controller
Display device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820653160.XU CN208091525U (en) | 2018-05-03 | 2018-05-03 | The sampling display device and its gas meter, flow meter of electronics temperature compensation diaphragm gas meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820653160.XU CN208091525U (en) | 2018-05-03 | 2018-05-03 | The sampling display device and its gas meter, flow meter of electronics temperature compensation diaphragm gas meter |
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| Publication Number | Publication Date |
|---|---|
| CN208091525U true CN208091525U (en) | 2018-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820653160.XU Active CN208091525U (en) | 2018-05-03 | 2018-05-03 | The sampling display device and its gas meter, flow meter of electronics temperature compensation diaphragm gas meter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110211361A (en) * | 2019-07-03 | 2019-09-06 | 安徽大学 | A kind of self-service meter register method of domestic gas and its self-service kilowatt meter recorder |
-
2018
- 2018-05-03 CN CN201820653160.XU patent/CN208091525U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110211361A (en) * | 2019-07-03 | 2019-09-06 | 安徽大学 | A kind of self-service meter register method of domestic gas and its self-service kilowatt meter recorder |
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