CN204269250U - A kind of resistance and temperature logging - Google Patents
A kind of resistance and temperature logging Download PDFInfo
- Publication number
- CN204269250U CN204269250U CN201420769146.8U CN201420769146U CN204269250U CN 204269250 U CN204269250 U CN 204269250U CN 201420769146 U CN201420769146 U CN 201420769146U CN 204269250 U CN204269250 U CN 204269250U
- Authority
- CN
- China
- Prior art keywords
- thermal resistance
- temperature
- resistance
- scm
- analog switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of resistance and temperature logging, belong to instrument and meter for automation field, it is characterized in that, comprise thermal resistance, thermal resistance temperature transmitter, multiway analog switch, A/D converter, Single Chip Microcomputer (SCM) system, LCD shows, button, serial ports exports and alarm, described thermal resistance, thermal resistance temperature transmitter, multiway analog switch, A/D converter and Single Chip Microcomputer (SCM) system are sequentially connected in series, described LCD display, button, serial ports exports, alarm is connected with Single Chip Microcomputer (SCM) system respectively with multiway analog switch, the utility model provides and a kind ofly can show multichannel and the temperature display meter of different resistance and temperature signal.
Description
Technical field
The utility model relates to a kind of temperature display meter, particularly a kind of resistance and temperature logging.
Background technology
Thermistor Temperature Measurement application is very general, but wide in variety due to thermal resistance, and the instrument of displays temperature needs corresponding with the model of thermal resistance, this can only show the temperature that records of thermal resistance of correspondence with it with regard to causing Displaying Meter, and can only show a road temperature signal.
Utility model content
The technical problems to be solved in the utility model is that providing a kind of can show multichannel and the temperature display meter of different resistance and temperature signal.
For achieving the above object, the utility model is realized by following technical scheme:
A kind of resistance and temperature logging, it is characterized in that, comprise thermal resistance, thermal resistance temperature transmitter, multiway analog switch, A/D converter, Single Chip Microcomputer (SCM) system, LCD display, button, serial ports output and alarm, described thermal resistance, thermal resistance temperature transmitter, multiway analog switch, A/D converter and Single Chip Microcomputer (SCM) system are sequentially connected in series, and described LCD display, button, serial ports output, alarm are connected with Single Chip Microcomputer (SCM) system respectively with multiway analog switch.
Further, described thermal resistance, comprise 1-8 thermal resistance, thermal resistance comprises Pt100 and Cu50.
Further, described thermal resistance temperature transmitter, comprises the 1-8 platform thermal resistance temperature transmitter corresponding with described thermal resistance.
Further, the model of described multiway analog switch is CD4051.
Further, the model of described A/D converter is PCF8591.
Further, the model of described LCD display is LCD1602.
The beneficial effects of the utility model are, provide a kind ofly can show multichannel and the temperature display meter of different resistance and temperature signal.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Implication is marked as follows in accompanying drawing:
1, thermal resistance 2, thermal resistance temperature transmitter 3, multiway analog switch 4, A/D converter 5, Single Chip Microcomputer (SCM) system 6, LCD display 7, button 8, serial ports output 9, alarm.
Embodiment
Below in conjunction with diagram and specific embodiment, the utility model is described in further detail.
With reference to Fig. 1, a kind of resistance and temperature logging of the utility model, comprise thermal resistance 1, thermal resistance temperature transmitter 2, multiway analog switch 3, A/D converter 4, Single Chip Microcomputer (SCM) system 5, LCD display 6, button 7, serial ports output 8 and alarm 9, described thermal resistance 1, thermal resistance temperature transmitter 2, multiway analog switch 3, A/D converter 4 and Single Chip Microcomputer (SCM) system 5 are sequentially connected in series, and described LCD display 6, button 7, serial ports output 8, alarm 9 are connected with Single Chip Microcomputer (SCM) system 5 respectively with multiway analog switch 3.
Further, described thermal resistance 1, comprise 1-8 thermal resistance, thermal resistance comprises Pt100 and Cu50.
Further, described thermal resistance temperature transmitter 2, comprises the 1-8 platform thermal resistance temperature transmitter corresponding with described thermal resistance 1.
Further, the model of described multiway analog switch 3 is CD4051.
Further, the model of described A/D converter 4 is PCF8591.
Further, the model of described LCD display 6 is LCD1602.
Principle of work of the present utility model: surveyed temperature signal to be converted to after resistance variations the 4-20mA DC current of outputting standard in after thermal resistance temperature transmitter 2 sampling transformation by thermal resistance 1, through multiway analog switch 3 gating, be converted to digital signal by A/D converter 4 again and deliver to Single Chip Microcomputer (SCM) system 5, Single Chip Microcomputer (SCM) system 5 drives LCD to show the temperature value of 6 instruction respective channels, button 7 is for operation setting, as arranged the type of each channel thermoelectric resistance, Temperature displaying scope and warning bound etc., when temperature beyond limit, alarm 9 sends alerting signal, analog switch 3 controls the measuring-signal gating to thermal resistance temperature transmitter 2 by Single Chip Microcomputer (SCM) system 5, serial ports export 8 for the communicating of computing machine.
Claims (3)
1. a resistance and temperature logging, it is characterized in that: comprise thermal resistance (1), thermal resistance temperature transmitter (2), multiway analog switch (3), A/D converter (4), Single Chip Microcomputer (SCM) system (5), LCD shows (6), button (7), serial ports exports (8) and alarm (9), described thermal resistance (1), thermal resistance temperature transmitter (2), multiway analog switch (3), A/D converter (4) and Single Chip Microcomputer (SCM) system (5) are sequentially connected in series, described LCD display (6), button (7), serial ports exports (8), alarm (9) is connected with Single Chip Microcomputer (SCM) system (5) respectively with multiway analog switch (3).
2. a kind of resistance and temperature logging according to claim 1, is characterized in that: described thermal resistance (1), comprise 1-8 thermal resistance, thermal resistance comprises Pt100 and Cu50.
3. according to a kind of resistance and temperature logging according to claim 1 or claim 2, it is characterized in that: described thermal resistance temperature transmitter (2), comprise the 1-8 platform thermal resistance temperature transmitter corresponding with described thermal resistance (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420769146.8U CN204269250U (en) | 2014-12-09 | 2014-12-09 | A kind of resistance and temperature logging |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420769146.8U CN204269250U (en) | 2014-12-09 | 2014-12-09 | A kind of resistance and temperature logging |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204269250U true CN204269250U (en) | 2015-04-15 |
Family
ID=52804111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420769146.8U Expired - Fee Related CN204269250U (en) | 2014-12-09 | 2014-12-09 | A kind of resistance and temperature logging |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204269250U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104359580A (en) * | 2014-12-09 | 2015-02-18 | 南京化工职业技术学院 | Thermal resistance temperature itinerant detector |
-
2014
- 2014-12-09 CN CN201420769146.8U patent/CN204269250U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104359580A (en) * | 2014-12-09 | 2015-02-18 | 南京化工职业技术学院 | Thermal resistance temperature itinerant detector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150415 Termination date: 20151209 |
|
| EXPY | Termination of patent right or utility model |