CN201045597Y - Transmission circuit of digital transducer - Google Patents
Transmission circuit of digital transducer Download PDFInfo
- Publication number
- CN201045597Y CN201045597Y CNU2007200900301U CN200720090030U CN201045597Y CN 201045597 Y CN201045597 Y CN 201045597Y CN U2007200900301 U CNU2007200900301 U CN U2007200900301U CN 200720090030 U CN200720090030 U CN 200720090030U CN 201045597 Y CN201045597 Y CN 201045597Y
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- twisted
- group
- pair feeder
- core
- pair
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Abstract
The utility model relates to a digital transducer transfer line belonging to an electronic measuring technical field, which is used for measuring longer distance transmission of humiture transducer digital signals. Digital signals of the two transducers are respectively switched in the two groups of twisted-pair line by using four-core or six-core or eight-core twisted-pair lines, direct current source lines or earth wires are switched in one group in the two groups, the group is mutually winded with a road of digit signals, and the direct current source lines or earth wires are switched in the other group, the group is mutually winded with another road of digital signals. The transfer line can effectively inhibit distributed capacitance, and can reduce adverse effects of digital signals which are caused by field disturbing, and lightning striking and the like.
Description
Affiliated technical field
The utility model relates to a kind of signal transmission line of digital sensor, especially measures the signal transmission line of humiture digital sensor, belongs to electronic measuring technology field.
Background technology
Digital sensor is converted into digital signal with measured physical quantity, is transferred to instrument and handles, shows, controls.Carry out the transmission of the longer distance of digital signal under industry or field environment, distributed capacitance can make signal waveform produce distortion, and rugged surroundings such as on-the-spot interference, thunderbolt may cause data transmission to lose efficacy, even damage digital sensor or instrument.
In moisture measurement, can adopt at temperature sensor (wet bulb) coated outside cotton yarn, cotton yarn is immersed in the mode in the water, because the volatilization of water, by measuring the temperature value of wet bulb, the humidity of indirect measurement environment.Need a temperature sensor (dry bulb) in addition, directly the temperature of measurement environment.
The New Digital temperature sensor adopts " 1-Wire interface " bussing technique at present, only needs direct current supply line, digital signal line and ground wire to get final product.In temperature, moisture measurement, direct current supply line, ground wire and two ways of digital signals are carried out long distance by a cable and are transmitted, and solve effective transmission problem of digital signal.
Summary of the invention
In order to solve in temperature, the moisture measurement, direct current supply line, ground wire and two ways of digital signals are carried out the problem that long distance transmits by a cable, the utility model proposes a kind of transmission line, can effectively suppress distributed capacitance, reduce the adverse effect to digital data transmission such as on-the-spot interference, thunderbolt.
The technical scheme that its technical matters that solves the utility model adopts is: use the four-core twisted-pair feeder, or six core twisted-pair feeder, or eight core twisted-pair feeder, respectively the two ways of digital signals line is inserted wherein two groups of twisted-pair feeders, direct current supply line or ground wire insert wherein one group, twist mutually in this group and a way word line set signal; Direct current supply line or ground wire insert another group, twist mutually in this group and another way word line set signal.Each digital signal line and direct current supply line or ground wire are twisted mutually, can effectively reduce distributed capacitance, reduce external interference, reach the effectively purpose of transmission of digital signal.
The beneficial effects of the utility model are: can effectively longer Distance Transmission humiture digital signals, owing to use four-core (two groups) twisted-pair feeder, or six cores (three groups) twisted-pair feeder, or eight cores (four groups) twisted-pair feeder, finished product is arranged in the market, cost is lower.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is that the utility model meets four-core twisted pair line wiring figure.
Fig. 2 is that the utility model meets six core twisted pair line wiring figure.
Fig. 3 is that the utility model meets eight core twisted pair line wiring figure.
1. digital sensors 1 among the figure, 2. digital sensor 2,3. the direct current supply line of sensor 1,4. the digital signal line of sensor 1, the 5. ground wire of sensor 1, the 6. direct current supply line of sensor 2,7. the digital signal line of sensor 2, the 8. ground wire of sensor 2,9. four-core twisted-pair feeder A, 10. four-core twisted-pair feeder B, 11. four-core twisted-pair feeder C, 12. four-core twisted-pair feeder D, 13. the four-core twisted-pair feeder, 14. 6 core twisted-pair feeder A, 15. 6 core twisted-pair feeder B, 16. six core twisted-pair feeder C, 17. six core twisted-pair feeder D, 18. 6 core twisted-pair feeder E, 19. 6 core twisted-pair feeder F, 20. six core twisted-pair feeders, 21. eight core twisted-pair feeder A, 22. 8 core twisted-pair feeder B, 23. 8 core twisted-pair feeder C, 24. eight core twisted-pair feeder D, 25. eight core twisted-pair feeder E, 26. 8 core twisted-pair feeder F, 27. 8 core twisted-pair feeder G, 28. eight core twisted-pair feeder H, 29. 8 core twisted-pair feeders.
The A of four-core twisted-pair feeder, B are one group of twisted-pair feeder, and C, D are one group of twisted-pair feeder.
The A of six core twisted-pair feeders, B are one group of twisted-pair feeder, and C, D are one group of twisted-pair feeder, and E, F are one group of twisted-pair feeder.
The A of eight core twisted-pair feeders, B are one group of twisted-pair feeder, and C, D are one group of twisted-pair feeder, and E, F are one group of twisted-pair feeder, and G, H are one group of twisted-pair feeder.
Four-core or six cores or eight core twisted-pair feeders, one termination digital sensor, another termination instrument.
Embodiment
In Fig. 1, the direct current supply line of sensor 1 (3) inserts four-core twisted-pair feeder A (9) with after the direct current supply line (6) of sensor 2 is in parallel, and the digital signal line of sensor 1 (4) inserts four-core twisted-pair feeder B (10); The ground wire of sensor 1 (5) inserts four-core twisted-pair feeder C (11) with after the ground wire (8) of sensor 2 is in parallel, and the digital signal line of sensor 2 (7) inserts four-core twisted-pair feeder D (12).
In embodiment illustrated in fig. 2, the ground wire of sensor 1 (5) inserts six core twisted-pair feeder A (14), and the digital signal line of sensor 1 (4) inserts six core twisted-pair feeder B (15); The ground wire of sensor 2 (8) inserts six core twisted-pair feeder C (16), and the digital signal line of sensor 2 (7) inserts six core twisted-pair feeder D (17); The ground wire of sensor 2 (8) inserts six core twisted-pair feeder E (18), and the direct current supply line of sensor 1 (3) inserts six core twisted-pair feeder F (19) with after the direct current supply line (6) of sensor 2 is in parallel.Six core twisted-pair feeder A (14), C (16), E (18) are inserting instrument end short circuit in parallel.
In another embodiment shown in Figure 3, the ground wire of sensor 1 (5) inserts eight core twisted-pair feeder A (21), and the digital signal line of sensor 1 (4) inserts eight core twisted-pair feeder B (22); The ground wire of sensor 1 (5) inserts eight core twisted-pair feeder C (23), and the direct current supply line of sensor 1 (3) inserts eight core twisted-pair feeder D (24); The ground wire of sensor 2 (8) inserts eight core twisted-pair feeder E (25), and the digital signal line of sensor 2 (7) inserts eight core twisted-pair feeder F (26); The ground wire of sensor 2 (8) inserts eight core twisted-pair feeder G (27), and the direct current supply line of sensor 2 (6) inserts eight core twisted-pair feeder H (28).Eight core twisted-pair feeder A (21), C (23), E (25) and G (27) are inserting instrument end short circuit in parallel.
Claims (2)
1. the digital sensor transmission line is the longer Distance Transmission that is used to measure the Temperature Humidity Sensor digital signal, it is characterized in that: use many group twisted-pair feeders, the digital signal line of two sensors is inserted wherein two groups of twisted-pair feeders respectively, direct current supply line or ground wire insert in two groups one group, twist mutually in this group and a way word line set signal; Direct current supply line or ground wire insert another group, twist mutually in this group and another way word line set signal.
2. digital sensor transmission line according to claim 1 is characterized in that: two lines twist mutually and constitute one group of twisted-pair feeder, and organizing twisted-pair feeder can be two groups, three groups, four groups more, corresponds to four-core, six cores, eight core twisted-pair feeders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200900301U CN201045597Y (en) | 2007-04-16 | 2007-04-16 | Transmission circuit of digital transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200900301U CN201045597Y (en) | 2007-04-16 | 2007-04-16 | Transmission circuit of digital transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201045597Y true CN201045597Y (en) | 2008-04-09 |
Family
ID=39309065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200900301U Expired - Fee Related CN201045597Y (en) | 2007-04-16 | 2007-04-16 | Transmission circuit of digital transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201045597Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107885302A (en) * | 2017-11-03 | 2018-04-06 | 郑州云海信息技术有限公司 | A kind of structure for reducing fan board input voltage fluctuation |
| CN111238584A (en) * | 2020-02-05 | 2020-06-05 | 上海桑锐电子科技股份有限公司 | Anti-interference circuit of non-magnetic metering sensor |
-
2007
- 2007-04-16 CN CNU2007200900301U patent/CN201045597Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107885302A (en) * | 2017-11-03 | 2018-04-06 | 郑州云海信息技术有限公司 | A kind of structure for reducing fan board input voltage fluctuation |
| CN111238584A (en) * | 2020-02-05 | 2020-06-05 | 上海桑锐电子科技股份有限公司 | Anti-interference circuit of non-magnetic metering sensor |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhu Wuchen Document name: Notification to Pay the Fees |
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| DD01 | Delivery of document by public notice |
Addressee: Zhu Wuchen Document name: Notification to Pay the Fees |
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| DD01 | Delivery of document by public notice |
Addressee: Zhu Wuchen Document name: Notification of Decision on Request for Restoration of Right Addressee: Zhu Wuchen Document name: Notification of Termination of Patent Right |
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| DD01 | Delivery of document by public notice |
Addressee: Zhu Wuchen Document name: Notification to Pay the Fees |
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| DD01 | Delivery of document by public notice |
Addressee: Zhu Wuchen Document name: Notification of Termination of Patent Right |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080409 Termination date: 20160416 |
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| CF01 | Termination of patent right due to non-payment of annual fee |