CN202974478U - An intelligent isolating temperature transmitter - Google Patents
An intelligent isolating temperature transmitter Download PDFInfo
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- CN202974478U CN202974478U CN201220601153.8U CN201220601153U CN202974478U CN 202974478 U CN202974478 U CN 202974478U CN 201220601153 U CN201220601153 U CN 201220601153U CN 202974478 U CN202974478 U CN 202974478U
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Abstract
Provided is an intelligent isolating temperature transmitter which comprises a group of high-precision thermocouple input ends, a group of linear amplifying circuits, a group of A/D converters, a group of 1kV isolating protective circuits, a microprocessor, a temperature linear compensating circuit, a group of first operating power supplies, a second operating power supply, and an output end. The intelligent isolating temperature transmitter has beneficial effects of good linearity, high measuring precision, low measuring error, high measuring efficiency, stability and high reliability, and achieving digitization and intellectualization.
Description
Technical field
The utility model relates to field of power, especially a kind of intelligent isolated temperature transmitter.
Background technology
At present, what domestic conventional low switchgear assembly temperature-raising experimental method extensively adopted is that thermocouple method is measured, the temperature rise test time is long, measuring accuracy is low, can't realize charged high pressure temperature survey, and the conventional temperature transmitter is linear poor, measuring error is large, along with the development of detection technique, traditional surveying instrument has been difficult to adapt to current technical development needs, and realizes that digitizing, the intellectuality of testing apparatus are the trend of modern automation instrument future development.
The utility model content
The utility model will solve the problem that above-mentioned prior art exists, and a kind of intelligent isolated temperature transmitter is provided, good linearity, and measuring accuracy is high, and measuring error is little, measures efficient high, and stability and reliability are high, and have realized digitizing and intellectuality.
The utility model solves the technical scheme that its technical matters adopts: this intelligent isolated temperature transmitter comprises one group of High Accuracy Thermocouple Temperature input end, one group of linear amplifier circuit, one group of A/D transducer, one group of 1kV isolation protective circuit, microprocessor, temperature linearity compensating circuit, one group of first working power, the second working power, output terminal;
Every road High Accuracy Thermocouple Temperature input end is connected with every route amplifying circuit respectively; every route amplifying circuit is connected with every road the first working power respectively; every route amplifying circuit is connected with every road A/D transducer respectively; every road A/D transducer is connected with every road 1kV isolation protective circuit respectively; every road 1kV isolation protective circuit gathers port with every road of microprocessor respectively and is connected; microprocessor is connected with the second working power; microprocessor is connected with the temperature linearity compensating circuit, microprocessor and output terminal communication.
Microprocessor comprises singlechip CPU and RS485 converter.
Microprocessor is provided with a RS485 communication interface.
Principle of the present utility model is: the sample temperature data message of High Accuracy Thermocouple Temperature input end by linearity amplify, A/D conversion, the technical finesse of 1kV isolation protective circuit, wherein every configurable 1～8 tunnel sampling High Accuracy Thermocouple Temperature input end of intelligent isolated temperature transmitter; The data that microprocessor Real Time Monitoring 1kV isolation protective circuit is processed; carry out the temperature linearity compensation according to different temperature values by the temperature linearity compensating circuit simultaneously; with the temperature information data of each road sampling intelligent management of finishing dealing with, pass to the intelligent temperature scan tester with the RS485 bus mode by output terminal and realize monitoring management.microprocessor is the compositions such as singlechip CPU and RS485 converter, microprocessor is provided with a RS485 communication interface, the RS485 communication interface is connected with outside host computer, microcomputerized controller has been selected single-chip microcomputer, the temperature sampling signal is carried out real time scan, realize total digitalization monitoring and closed loop program control, automatically degree of changing into is high, one group of first working power and the second working power are power supply independently separately, and microprocessor provides the RS485 communication interface, the RS485 communication interface is connected with output terminal, can carry out Real Time Monitoring to the intelligent isolated temperature transmitter course of work by the intelligent temperature scan tester.
The effect that the utility model is useful is: intelligent isolated temperature transmitter of the present utility model, and good linearity, measuring accuracy is high, and measuring error is little, measures efficient high, and stability and reliability are high, and have realized digitizing and intellectuality.
Description of drawings
Fig. 1 is the theory diagram of the utility model embodiment.
Description of reference numerals: High Accuracy Thermocouple Temperature input end 1; linear amplifier circuit 2, A/D transducer 3,1KV isolation protective circuit 4; microprocessor 5; singlechip CPU 5-1, RS485 converter 5-2, RS485 communication interface 5-3; temperature linearity compensating circuit 6; the first working power 7, the second working powers 8, output terminal 9.In figure, ellipsis is expressed as one group.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
With reference to accompanying drawing: this intelligent isolated temperature transmitter in the present embodiment comprises one group of High Accuracy Thermocouple Temperature input end 1, one group of linear amplifier circuit 2, one group of A/D transducer 3, one group of 1kV isolation protective circuit 4, microprocessor 5, temperature linearity compensating circuit 6, one group of first working power 7, the second working power 8, output terminal 9;
Every road High Accuracy Thermocouple Temperature input end 1 is connected with every route amplifying circuit 2 respectively; every route amplifying circuit 2 is connected with every road the first working power 7 respectively; every route amplifying circuit 2 is connected with every road A/D transducer 3 respectively; every road A/D transducer 3 is connected with every road 1kV isolation protective circuit 4 respectively; every road 1kV isolation protective circuit 4 gathers port with every road of microprocessor 5 respectively and is connected; microprocessor 5 is connected with the second working power 8; microprocessor 5 is connected with temperature linearity compensating circuit 6, microprocessor 5 and output terminal 9 communications.
Principle of the present utility model is: the sample temperature data message of High Accuracy Thermocouple Temperature input end 1 by linearity amplify, A/D conversion, the technical finesse of 1kV isolation protective circuit, wherein every configurable 1～8 tunnel sampling High Accuracy Thermocouple Temperature input end 1 of intelligent isolated temperature transmitter; Microprocessor 5 Real Time Monitoring 1kV isolation protective circuits are processed 4 data; carry out the temperature linearity compensation according to different temperature values by the temperature linearity compensating circuit simultaneously; with the temperature information data of each road sampling intelligent management of finishing dealing with, pass to the intelligent temperature scan tester with the RS485 bus mode by output terminal and realize monitoring management.microprocessor 5 is that singlechip CPU 5-1 and RS485 converter 5-2 form, microprocessor 5 is provided with a RS485 communication interface 5-3, RS485 communication interface 5-3 is connected with outside host computer, microcomputerized controller 5 has been selected single-chip microcomputer, the temperature sampling signal is carried out real time scan, realize total digitalization monitoring and closed loop program control, automatically degree of changing into is high, one group of first working power 7 and the second working power 8 are power supply independently separately, and microprocessor 5 provides RS485 communication interface 5-3, RS485 communication interface 5-3 is connected with output terminal 9, can carry out Real Time Monitoring to the intelligent isolated temperature transmitter course of work by the intelligent temperature scan tester.
Characteristics of the present utility model are: possessed the not available multinomial advanced feature of conventional temperature collector, thoroughly overcome the linear poor shortcoming of conventional temperature transmitter, inner digitizing adjustment, inferred-zero and full scale potentiometer, the automatic dynamic of adopting calibrated many advanced technologies such as zero point, temperature drift auto-compensation; Adopt the full isolation protective circuit of high pressure, accessible Multiple Type thermopair, the application of this series technique makes the stability of intelligent isolated temperature transmitter and the assurance that reliability obtains science.
Although the utility model illustrates and describes by the reference preferred embodiment,, those skilled in the art should understand, and in the scope of claims, can do the various variation on form and details.
Claims (3)
1. an intelligent isolated temperature transmitter, is characterized in that: comprise one group of High Accuracy Thermocouple Temperature input end (1), one group of linear amplifier circuit (2), one group of A/D transducer (3), one group of 1kV isolation protective circuit (4), microprocessor (5), temperature linearity compensating circuit (6), one group of first working power (7), the second working power (8), output terminal (9);
described every road High Accuracy Thermocouple Temperature input end (1) is connected with every route amplifying circuit (2) respectively, described every route amplifying circuit (2) is connected with every road the first working power (7) respectively, described every route amplifying circuit (2) is connected with every road A/D transducer (3) respectively, described every road A/D transducer (3) is connected with every road 1kV isolation protective circuit (4) respectively, described every road 1kV isolation protective circuit (4) gathers port with every road of microprocessor (5) respectively and is connected, described microprocessor (5) is connected with the second working power (8), described microprocessor (5) is connected with temperature linearity compensating circuit (6), described microprocessor (5) and output terminal (9) communication.
2. intelligent isolated temperature transmitter according to claim 1, it is characterized in that: described microprocessor (5) comprises singlechip CPU (5-1) and RS-485 converter (5-2).
3. intelligent isolated temperature transmitter according to claim 2, it is characterized in that: described microprocessor (5) is provided with a RS485 communication interface (5-3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220601153.8U CN202974478U (en) | 2012-11-15 | 2012-11-15 | An intelligent isolating temperature transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220601153.8U CN202974478U (en) | 2012-11-15 | 2012-11-15 | An intelligent isolating temperature transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202974478U true CN202974478U (en) | 2013-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220601153.8U Expired - Lifetime CN202974478U (en) | 2012-11-15 | 2012-11-15 | An intelligent isolating temperature transmitter |
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| CN (1) | CN202974478U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103728555A (en) * | 2013-12-20 | 2014-04-16 | 浙江三辰电器有限公司 | Temperature rise test circuit of low-voltage complete set switchgear and test method thereof |
-
2012
- 2012-11-15 CN CN201220601153.8U patent/CN202974478U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103728555A (en) * | 2013-12-20 | 2014-04-16 | 浙江三辰电器有限公司 | Temperature rise test circuit of low-voltage complete set switchgear and test method thereof |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 323900 Zhejiang city of Lishui province Qingtian county bamboo Riverside Road No. 6 oil Street Patentee after: ZHEJIANG SANCHEN ELECTRICAL APPLIANCE CO.,LTD. Address before: 323900 Zhejiang city of Lishui province Qingtian County South Road No. 41 Patentee before: ZHEJIANG SANCHEN ELECTRICAL Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130605 |