CN208953052U - A kind of flowmeter volume correction instrument is uncapped detection circuit - Google Patents
A kind of flowmeter volume correction instrument is uncapped detection circuit Download PDFInfo
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- CN208953052U CN208953052U CN201821920411.2U CN201821920411U CN208953052U CN 208953052 U CN208953052 U CN 208953052U CN 201821920411 U CN201821920411 U CN 201821920411U CN 208953052 U CN208953052 U CN 208953052U
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- infrared
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- volume correction
- correction instrument
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Abstract
It uncaps detection circuit the utility model relates to a kind of flowmeter volume correction instrument, circuit includes controller, infrared emission unit and infrared receiver, the infrared transmitting tube D1 anode of infrared emission unit connects power supply, the cathode of infrared transmitting tube D1 is connect with the collector of triode VT, the emitter of triode VT is grounded, and the base stage of triode VT is connect with the input/output interface I/01 for connecing controller；The infrared receiving tube D2 anode of infrared receiver is connect with the input/output interface I/02 of power supply and controller respectively, the cathode ground connection of infrared receiving tube D2.It has the advantages that of simple structure and low cost, sensitive, practical, and safety and the anti-theft gaseous for improving volume correction instrument are horizontal.
Description
Technical field
The utility model relates to a kind of gas flowmeters, and in particular to a kind of flowmeter volume correction instrument of gas flowmeter
It uncaps detection circuit.
Background technique
With the development of economy and society, natural gas is more and more wider as a kind of its application field of clear energy sources, consumption figure
Rapid development.Gas flowmeter is the common measuring equipment of gas distributing system, as both sides of supply and demand measure tolerance and valuation according to
According to the accuracy of metering directly affects the fairness of transaction.Gas flowmeter is mainly by base table, mechanical counter and volume
Correction instrument etc. composition.By volume correction instrument according to built-in mathematical model, relevant parameter (compressibility factor, conversion coefficient) and
The temperature of base table offer, pressure detecting signal, which are converted to the gas flow operating condition volume that mechanical counter detects, marks condition volume,
In order to valuate.Temperature signal, pressure signal and operating condition flow signal are that gas flow operating condition volume is converted to mark condition volume
Call parameter, either signal missing all can cause volume correction instrument not measure correctly.It is based on this feature, it is some illegal
Molecule by interference temperature, pressure, the transmission of operating condition flow signal or removes correspondence frequently by opening volume correction instrument lid
Signal wire come realize steal gas purpose.Certain loss not only is caused to natural gas management unit, while affecting society
Meeting and economic order, are unfavorable for industry development.
Utility model content
It uncaps detection circuit the purpose of the utility model is to provide a kind of flowmeter volume correction instrument, with structure letter
Single, low in cost, sensitive, practical advantage, safety and the anti-theft gaseous for improving volume correction instrument are horizontal.
To solve the above-mentioned problems in the prior art, a kind of flowmeter volume correction instrument provided by the utility model is opened
Lid detection circuit, including controller, infrared emission unit and infrared receiver, the infrared emission unit include infrared emission
Pipe D1 and triode VT, the anode of infrared transmitting tube D1 connect power supply, the cathode of infrared transmitting tube D1 and the collector of triode VT
Connection, the emitter ground connection of triode VT, the base stage of triode VT are connect with the input/output interface I/01 for connecing controller；It is described
Infrared receiver includes infrared receiving tube D2, and input and output of the anode of infrared receiving tube D2 respectively with power supply and controller connect
Mouth I/02 connection, the cathode ground connection of infrared receiving tube D2；The infrared transmitting tube D1 is arranged in the main body of volume correction instrument, institute
The lid medial surface that infrared receiving tube D2 is encapsulated in volume correction instrument is stated, the packaging body of infrared receiving tube D2 is equipped with and infrared hair
Penetrate the opposite light hole of pipe D1；The infrared emission unit further includes resistance R1 and resistance R2, and resistance R1 is serially connected with infrared emission
Between the cathode of pipe D1 and the collector of triode VT, the corresponding base stage and emitter with triode VT in the both ends of resistance R2 connects
It connects；The infrared receiver further includes resistance R3, and resistance R3 is serially connected between the anode and power supply of infrared receiving tube D2.
Further, a kind of flowmeter volume correction instrument of the utility model is uncapped detection circuit, wherein the controller is used
Signal is controlled in exporting to infrared emission unit, and receives the feedback signal of infrared receiver, the infrared emission unit is used
In transmitting infrared signal, the infrared receiver is for receiving infrared signal.
A kind of flowmeter volume correction instrument of the utility model uncaps detection circuit compared with prior art, has following excellent
Point: the utility model makes infrared emission unit setting infrared by setting controller, infrared emission unit and infrared receiver
Transmitting tube D1 and triode VT, makes the anode of infrared transmitting tube D1 connect power supply, makes the cathode and triode VT of infrared transmitting tube D1
Collector connection, be grounded the emitter of triode VT, and connect the base stage of triode VT with the input and output for connecing controller
Mouth I/01 connection.Allow infrared receiver be arranged infrared receiving tube D2, make infrared receiving tube D2 anode respectively with power supply and control
The input/output interface I/02 connection of device processed, and it is grounded the cathode of infrared receiving tube D2.Wherein, infrared transmitting tube D1 setting exists
In the main body of volume correction instrument, infrared receiving tube D2 is encapsulated in the lid medial surface of volume correction instrument, and in infrared receiving tube D2
Packaging body on the light hole opposite with infrared transmitting tube D1 is set.And infrared emission unit is made to be provided with resistance R1 and resistance
R2, and it is serially connected with resistance R1 between the cathode of infrared transmitting tube D1 and the collector of triode VT, make the both ends pair of resistance R2
It should be connect with the base stage of triode VT and emitter.Infrared receiver is set to be provided with resistance R3, and it is red to be serially connected with resistance R3
Between the anode and power supply of outer reception pipe D2.Thus a kind of of simple structure and low cost, sensitive, practicability is just constituted
Strong flowmeter volume correction instrument is uncapped detection circuit.Pulse is exported to infrared emission unit by controller in practical applications
Signal is controlled, the infrared transmitting tube D1 of infrared emission unit emits infrared signal.When the lid of volume correction instrument is to close shape
When state, because the packaging body of infrared receiving tube D2 is equipped with the light hole opposite with infrared transmitting tube D1, infrared receiving tube D2 can be received
It to infrared signal and is connected, infrared receiver output at this time is low level.And when the lid of volume correction instrument is to open
When state, because the angle change of light hole causes infrared receiving tube D2 that can not receive infrared signal, infrared receiver list at this time
Member output is high level.Volume correction instrument lid can be quickly judged by the level that controller detects infrared receiver output
The switch state of son.The utility model by carrying out detection of uncapping to volume correction instrument, and to the time of uncapping, for several times and related letter
Breath is recorded, and can be retained evidence to uncap and destroying privately volume correction instrument, be improved the safety of volume correction instrument and prevent
It is flat to steal air water.On the basis of uncapping detection, it can also be judged whether there is artificially by comparing each detection signal for front and back of uncapping
Interference influences detection signal, and participates in gas flow mark by using corresponding substitution value when each detection signal occurs abnormal
Condition volume operation, it is ensured that volume correction instrument normally measures.
Shown specific embodiment uncaps detection to a kind of flowmeter volume correction instrument of the utility model with reference to the accompanying drawing
Circuit is described in further detail:
Detailed description of the invention
Fig. 1 is that a kind of flowmeter volume correction instrument of the utility model is uncapped the general illustration of detection circuit；
Fig. 2 is that a kind of flowmeter volume correction instrument of the utility model is uncapped in detection circuit and infrared emission unit and infrared to be connect
Receive the schematic diagram of unit.
Specific embodiment
Firstly the need of explanation, the nouns of locality such as upper and lower, front, rear, left and right described in the utility model are only according to attached
Scheme carry out description, in order to understand, not to the technical solution of the utility model and be claimed range progress limitation.
A kind of flowmeter volume correction instrument of the utility model as depicted in figs. 1 and 2 is uncapped the specific embodiment party of detection circuit
Formula, including controller 1, infrared emission unit 2 and infrared receiver 3.Allow infrared emission unit 2 be arranged infrared transmitting tube D1 and
Triode VT, and the anode of infrared transmitting tube D1 is made to connect power supply, make the cathode of infrared transmitting tube D1 and the collector of triode VT
Connection, is grounded the emitter of triode VT, and connects the base stage of triode VT with the input/output interface I/01 for connecing controller 1
It connects.Allow infrared receiver 3 be arranged infrared receiving tube D2, and make infrared receiving tube D2 anode respectively with power supply and controller 1
Input/output interface I/02 connection, be grounded the cathode of infrared receiving tube D2.Wherein, infrared transmitting tube D1 is arranged in volume
In the main body of correction instrument, infrared receiving tube D2 is encapsulated in the lid medial surface of volume correction instrument, and infrared receiving tube D2's
The light hole opposite with infrared transmitting tube D1 is set on packaging body.Meanwhile infrared emission unit being allowed to be provided with resistance R1 and resistance
R2, and it is serially connected with resistance R1 between the cathode of infrared transmitting tube D1 and the collector of triode VT, make the both ends pair of resistance R2
It should be connect with the base stage of triode VT and emitter；Infrared receiver is allowed to be provided with resistance R3, and it is red to be serially connected with resistance R3
Between the anode and power supply of outer reception pipe D2.
It is arranged through the above structure and just constitutes a kind of of simple structure and low cost, sensitive, practical flow
Meter volume correction instrument is uncapped detection circuit.Pulse control letter is exported to infrared emission unit 2 by controller 1 in practical applications
Number, the infrared transmitting tube D1 of infrared emission unit 2 emits infrared signal.When the lid of volume correction instrument is in off state,
Because the packaging body of infrared receiving tube D2 is equipped with the light hole opposite with infrared transmitting tube D1, infrared receiving tube D2 can receive infrared
Optical signal is simultaneously connected, and the output of infrared receiver 3 at this time is low level.And when the lid of volume correction instrument is in an open state
When, because the angle change of light hole causes infrared receiving tube D2 that can not receive infrared signal, infrared receiver 3 is defeated at this time
It is out high level.Volume correction instrument lid can quickly be judged by detecting the level that infrared receiver 3 exports by controller 1
Switch state.The utility model by carrying out detection of uncapping to volume correction instrument, and by the time of uncapping, it is for several times and related
Information is recorded, and can retain evidence to uncap and destroying privately volume correction instrument, improve the safety of volume correction instrument with
Anti-theft gaseous is horizontal.On the basis of uncapping detection, it can also judge whether someone by comparing each detection signal for front and back of uncapping
To interfere or influencing to detect signal, and gas flow is participated in by using corresponding substitution value when each detection signal occurs abnormal
Mark the operation of condition volume, it is ensured that volume correction instrument normally measures.Meanwhile the utility model passes through setting resistance R1 and resistance R2,
Enhance the stability and safety of infrared emission unit 2；By the way that resistance R3 is arranged, the stabilization of infrared receiver 3 is enhanced
Property and safety.
It should be noted that in practical applications, the controller 1 in the utility model is used for defeated to infrared emission unit 2
Pulse control signal out, and the feedback signal of infrared receiver 3 is received, infrared emission unit 2 is used to emit infrared signal,
Infrared receiver 3 is for receiving infrared signal.
Above embodiments are only the descriptions carried out to preferred embodiments of the present invention, are not asked to the utility model
Protection scope is asked to be defined, under the premise of not departing from the spirit of the design of the utility model, this field engineers and technicians' foundation
The various forms of deformations that the technical solution of the utility model is made should all fall into claims determination of the utility model
In protection scope.
Claims (2)
- The detection circuit 1. a kind of flowmeter volume correction instrument is uncapped, which is characterized in that including controller (1), infrared emission unit (2) and infrared receiver (3), the infrared emission unit (2) includes infrared transmitting tube D1 and triode VT, infrared transmitting tube The anode of D1 connects power supply, and the cathode of infrared transmitting tube D1 is connect with the collector of triode VT, the emitter ground connection of triode VT, The base stage of triode VT is connect with the input/output interface I/01 for connecing controller (1)；The infrared receiver (3) includes infrared The anode of reception pipe D2, infrared receiving tube D2 are connect with the input/output interface I/02 of power supply and controller (1) respectively, infrared to connect The cathode of closed tube D2 is grounded；The infrared transmitting tube D1 is arranged in the main body of volume correction instrument, the infrared receiving tube D2 envelope Mounted in the lid medial surface of volume correction instrument, the packaging body of infrared receiving tube D2 is equipped with the light passing opposite with infrared transmitting tube D1 Hole；The infrared emission unit (2) further includes resistance R1 and resistance R2, and resistance R1 is serially connected with the cathode and three of infrared transmitting tube D1 Between the collector of pole pipe VT, the both ends correspondence of resistance R2 is connect with the base stage of triode VT and emitter；The infrared receiver Unit (3) further includes resistance R3, and resistance R3 is serially connected between the anode and power supply of infrared receiving tube D2.
- The detection circuit 2. a kind of flowmeter volume correction instrument described in accordance with the claim 1 is uncapped, which is characterized in that the control Device (1) is used to export control signal to infrared emission unit (2), and receives the feedback signal of infrared receiver (3), described red Outer transmitting unit (2) is for emitting infrared signal, and the infrared receiver (3) is for receiving infrared signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821920411.2U CN208953052U (en) | 2018-11-21 | 2018-11-21 | A kind of flowmeter volume correction instrument is uncapped detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821920411.2U CN208953052U (en) | 2018-11-21 | 2018-11-21 | A kind of flowmeter volume correction instrument is uncapped detection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208953052U true CN208953052U (en) | 2019-06-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821920411.2U Active CN208953052U (en) | 2018-11-21 | 2018-11-21 | A kind of flowmeter volume correction instrument is uncapped detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208953052U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111740779A (en) * | 2020-07-10 | 2020-10-02 | 上海真兰仪表科技股份有限公司 | Mobile phone infrared data transmission volume corrector convenient to disassemble and assemble |
| CN112133079A (en) * | 2019-06-25 | 2020-12-25 | 深圳拓邦股份有限公司 | Infrared detection circuit and method |
-
2018
- 2018-11-21 CN CN201821920411.2U patent/CN208953052U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112133079A (en) * | 2019-06-25 | 2020-12-25 | 深圳拓邦股份有限公司 | Infrared detection circuit and method |
| CN112133079B (en) * | 2019-06-25 | 2024-04-30 | 深圳拓邦股份有限公司 | Infrared detection circuit and method |
| CN111740779A (en) * | 2020-07-10 | 2020-10-02 | 上海真兰仪表科技股份有限公司 | Mobile phone infrared data transmission volume corrector convenient to disassemble and assemble |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Zengchang Inventor after: Gu Xiaopeng Inventor after: Li Manman Inventor after: Ji Ruichun Inventor after: Yang Wuteng Inventor after: Zhang Yuxing Inventor after: Xing Linlin Inventor before: Li Manman Inventor before: Gu Xiaopeng Inventor before: Yang Lei Inventor before: Ma Xuqing Inventor before: Wang Qingyu Inventor before: Ma Bin |
|
| CB03 | Change of inventor or designer information |