CN203824563U - Digital transmitter based on dissolved oxygen sensor - Google Patents
Digital transmitter based on dissolved oxygen sensor Download PDFInfo
- Publication number
- CN203824563U CN203824563U CN201420126274.0U CN201420126274U CN203824563U CN 203824563 U CN203824563 U CN 203824563U CN 201420126274 U CN201420126274 U CN 201420126274U CN 203824563 U CN203824563 U CN 203824563U
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- circuit
- dissolved oxygen
- oxygen sensor
- sim32
- minimum system
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Abstract
A digital transmitter based on a dissolved oxygen sensor relates to the technical field of digital transmitters. An input end of a double-power MV-grade amplification circuit (7) is connected with a signal line of a dissolved oxygen sensor. An output end of the double-power MV-grade amplification circuit (7) is connected with an input end of a voltage divider circuit (4). An output end of the voltage divider circuit (4) is connected with an input end of an SIM32 minimum system circuit (6). An output end of the SIM32 minimum system circuit (6) is connected with an RS485 serial communication circuit (2), an NTC acquisition circuit (3) and a 2.5V reference source circuit (5) respectively. The digital transmitter based on the dissolved oxygen sensor converts an analog signal of the dissolved oxygen sensor into a digital signal, helps to save energy, and ensures normal operation of equipment.
Description
Technical field:
The utility model relates to digital transmitter technical field, is specifically related to a kind of digital transmitter based on dissolved oxygen sensor.
Background technology:
Digital transmitter is transformed into digital quantity analog quantity and shows, and output current signal or voltage signal according to a certain percentage, and the simulation two-wire system that domestic standard is unified signal transmission is 4-20mA, 0-20mA, 4-24mA.The sorting technique of transmitter is a lot, by the work energy, divides, and has pneumatic transmitter, a transmitter that surges, electronic transmitter; By measured parameter, divide, have differential pressure transmitter, pressure unit, flow transmitter, temperature transmitter, fluid level transmitter; By communication protocol, divide, have HART transmitter, DE transmitter, FF transmitter and PROFIBUS transmitter; By principle of work, divide, have transmitter of the force balancing type, type vibration wire transmitter, capacitance transducer, inductance type transmitter, pressure resistance type (diffuse si formula) transmitter, silicon resonance type transmitter and piezoelectric type transmitter; By signal type, divide, have analog transmitter and digital transmitter; By having or not microprocessor to divide, there are conventional transmitter and intelligent transducer.
Existing its power consumption of digital transmitter that is applied in dissolved oxygen sensor is high, and unstable, inconvenient while causing using.
Utility model content:
The purpose of this utility model is to provide a kind of digital transmitter based on dissolved oxygen sensor, and it can become digital signal by the simulating signal of dissolved oxygen sensor, and can save the energy, and assurance equipment normally moves.
In order to solve the existing problem of background technology, the utility model is to adopt following technical scheme: it comprises power circuit 1, RS485 serial communication circuit 2, NTC Acquisition Circuit 3, bleeder circuit 4, 2.5V reference source circuit 5, SIM32 minimum system circuit 6, it also comprises dual power supply MV level amplifying circuit 7, the input end of dual power supply MV level amplifying circuit 7 is connected with the signal wire of dissolved oxygen sensor, the output terminal of dual power supply MV level amplifying circuit 7 is connected with the input end of bleeder circuit 4, the output terminal of bleeder circuit 4 is connected with the input end of SIM32 minimum system circuit 6, the output terminal of SIM32 minimum system circuit 6 respectively with S485 serial communication circuit 2, NTC Acquisition Circuit 3, 2.5V reference source circuit 5 connects.
Principle of work of the present utility model is: dissolved oxygen sensor access dual power supply MV level amplifying circuit 7, amplify voltage access bleeder circuit 4 out, bleeder circuit 4 accesses SIM32 minimum system circuit 6 again, then through SIM32 minimum system circuit 6, the simulating signal of dissolved oxygen sensor is become to digital signal, SIM32 minimum system circuit 6 access RS485 serial communication circuits 2 are exactly out the digital signal of RS485 communication protocol, power unit is to be whole system power supply always, SIM32 minimum system circuit 6 is that benchmark is done in dissolved oxygen sensor collection by the reference source of AD collection 2.5V simultaneously, SIM32 minimum system circuit 6 also gathers the operating ambient temperature that NTC circuit can gather out dissolved oxygen sensor in addition, adopt dual power supply MV level amplifying circuit 7 to amplify and can save the energy, assurance equipment normally moves.
The utlity model has following beneficial effect: the simulating signal of dissolved oxygen sensor can be become to digital signal, and can save the energy, assurance equipment normally moves.
Accompanying drawing explanation:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the circuit theory diagrams of power circuit 1 in the utility model;
Fig. 3 is the circuit theory diagrams of RS485 serial communication circuit 2 in the utility model;
Fig. 4 is the circuit theory diagrams of NTC Acquisition Circuit 3 in the utility model;
Fig. 5 is the circuit theory diagrams of bleeder circuit 4 in the utility model;
Fig. 6 is the circuit theory diagrams of 2.5V reference source circuit 5 in the utility model;
Fig. 7 is the circuit theory diagrams of SIM32 minimum system circuit 6 in the utility model;
Fig. 8 is the circuit theory diagrams of dual power supply MV level amplifying circuit 7 in the utility model.
Embodiment:
Referring to Fig. 1-Fig. 8, this embodiment adopts following technical scheme: it comprises power circuit 1, RS485 serial communication circuit 2, NTC Acquisition Circuit 3, bleeder circuit 4, 2.5V reference source circuit 5, SIM32 minimum system circuit 6, it also comprises dual power supply MV level amplifying circuit 7, the input end of dual power supply MV level amplifying circuit 7 is connected with the signal wire of dissolved oxygen sensor, the output terminal of dual power supply MV level amplifying circuit 7 is connected with the input end of bleeder circuit 4, the output terminal of bleeder circuit 4 is connected with the input end of SIM32 minimum system circuit 6, the output terminal of SIM32 minimum system circuit 6 respectively with S485 serial communication circuit 2, NTC Acquisition Circuit 3, 2.5V reference source circuit 5 connects.
The principle of work of this embodiment is: dissolved oxygen sensor access dual power supply MV level amplifying circuit 7, amplify voltage access bleeder circuit 4 out, bleeder circuit 4 accesses SIM32 minimum system circuit 6 again, then through SIM32 minimum system circuit 6, the simulating signal of dissolved oxygen sensor is become to digital signal, SIM32 minimum system circuit 6 access RS485 serial communication circuits 2 are exactly out the digital signal of RS485 communication protocol, power unit is to be whole system power supply always, SIM32 minimum system circuit 6 is that benchmark is done in dissolved oxygen sensor collection by the reference source of AD collection 2.5V simultaneously, SIM32 minimum system circuit 6 also gathers the operating ambient temperature that NTC circuit can gather out dissolved oxygen sensor in addition, adopt dual power supply MV level amplifying circuit 7 to amplify and can save the energy, assurance equipment normally moves.
This embodiment has following beneficial effect: the simulating signal of dissolved oxygen sensor can be become to digital signal, and can save the energy, assurance equipment normally moves.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (1)
1. the digital transmitter based on dissolved oxygen sensor, it comprises power circuit (1), RS485 serial communication circuit (2), NTC Acquisition Circuit (3), bleeder circuit (4), 2.5V reference source circuit (5), SIM32 minimum system circuit (6), it is characterized in that it also comprises dual power supply MV level amplifying circuit (7), the input end of dual power supply MV level amplifying circuit (7) is connected with the signal wire of dissolved oxygen sensor, the output terminal of dual power supply MV level amplifying circuit (7) is connected with the input end of bleeder circuit (4), the output terminal of bleeder circuit (4) is connected with the input end of SIM32 minimum system circuit (6), the output terminal of SIM32 minimum system circuit (6) respectively with S485 serial communication circuit (2), NTC Acquisition Circuit (3), 2.5V reference source circuit (5) connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420126274.0U CN203824563U (en) | 2014-03-17 | 2014-03-17 | Digital transmitter based on dissolved oxygen sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420126274.0U CN203824563U (en) | 2014-03-17 | 2014-03-17 | Digital transmitter based on dissolved oxygen sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203824563U true CN203824563U (en) | 2014-09-10 |
Family
ID=51480048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420126274.0U Expired - Fee Related CN203824563U (en) | 2014-03-17 | 2014-03-17 | Digital transmitter based on dissolved oxygen sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203824563U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106841555A (en) * | 2017-02-15 | 2017-06-13 | 雨研信息科技(上海)有限公司 | A kind of portable detector based on dissolved oxygen sensor |
| CN109283871A (en) * | 2018-09-28 | 2019-01-29 | 承德万达高新仪表有限公司 | A kind of intelligent transmitter of two-wire system with dry contact output warning function |
-
2014
- 2014-03-17 CN CN201420126274.0U patent/CN203824563U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106841555A (en) * | 2017-02-15 | 2017-06-13 | 雨研信息科技(上海)有限公司 | A kind of portable detector based on dissolved oxygen sensor |
| CN109283871A (en) * | 2018-09-28 | 2019-01-29 | 承德万达高新仪表有限公司 | A kind of intelligent transmitter of two-wire system with dry contact output warning function |
| CN109283871B (en) * | 2018-09-28 | 2023-12-08 | 承德万达高新仪表有限公司 | Two-wire intelligent transmitter with dry contact output alarm function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Yu Yan Information technology (Shanghai) Co., Ltd. Document name: Notice of payment reduction |
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| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Patent of Yuyan information technology (Shanghai) Co.,Ltd. The person in charge Document name: payment instructions |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Xu Kuikui Document name: Notice of termination of patent right |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140910 Termination date: 20210317 |