CN204695654U - A kind of thermopair experimental provision - Google Patents
A kind of thermopair experimental provision Download PDFInfo
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- CN204695654U CN204695654U CN201520397553.5U CN201520397553U CN204695654U CN 204695654 U CN204695654 U CN 204695654U CN 201520397553 U CN201520397553 U CN 201520397553U CN 204695654 U CN204695654 U CN 204695654U
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- thermopair
- temperature end
- experimental provision
- controller
- display screen
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Abstract
The utility model discloses a kind of thermopair experimental provision, comprise controller, signal conditioning circuit, heat driven, fans drive, digital potentiometer, display screen, key-press module and power module; Platinum resistance, thermopair, ptc heater, fan; Modulate circuit, heat driven, fans drive, digital potentiometer, display screen, key-press module are all connected with controller; Platinum resistance resistance, thermocouple voltages difference are transferred to controller by signal conditioning circuit, and the output terminal of heat driven is connected with ptc heater and heats to thermopair, and the output terminal of fans drive is connected with fan; Described digital potentiometer is for arranging the temperature end temperature value of thermopair.The utility model adopts MSP430F149 single-chip microcomputer as control core, is aided with thermocouple sensor, PTC computer heating control and LCD and shows liquid crystal display.Without the need to adopting voltage table to measure during experiment, reach simple to operate, intuitive display and the high feature of reliability.
Description
Technical field
The utility model relates to a kind of thermopair experimental provision, belongs to Electronics and Information Engineering technical field.
Background technology
Usually need when carrying out thermopair experiment in the Experiment of College Physics of current a lot of colleges and universities to use thermopair experiment to put, and many experimental provisions have the following disadvantages:
(1) need to be equipped with high-accuracy voltage table when testing and just can complete experimental implementation, and measure cumbersome;
(2) the Measures compare trouble of the temperature end heating of the thermopair in experimental provision, not easily carries out temperature control;
(3) temperature of temperature end and the corresponding relation of thermistor can not be shown;
(4) Temperature displaying and voltage difference display adopt numeral method, and precision is poor.
Utility model content
Object: in order to overcome the deficiencies in the prior art, the utility model provides a kind of thermopair experimental provision, adopts MSP430F149 single-chip microcomputer as control core, is aided with thermocouple sensor, PTC computer heating control and LCD and shows liquid crystal display.Without the need to adopting voltage table to measure during experiment, reach simple to operate, intuitive display and the high feature of reliability.
Technical scheme: for solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of thermopair experimental provision, is characterized in that: comprise controller, signal conditioning circuit, heat driven, fans drive, digital potentiometer, display screen, key-press module and power module; Platinum resistance, thermopair, ptc heater, fan; Modulate circuit, heat driven, fans drive, digital potentiometer, display screen, key-press module are all connected with controller; Platinum resistance resistance, thermocouple voltages difference are transferred to controller by signal conditioning circuit, and the output terminal of heat driven is connected with ptc heater and heats to thermopair, and the output terminal of fans drive is connected with fan; Described digital potentiometer is for arranging the temperature end temperature value of thermopair.
Described thermopair experimental provision, is characterized in that: key-press module comprises confirmation button and heating levels button.
Described thermopair experimental provision, is characterized in that: controller adopts MSP430F169 single-chip microcomputer.
Described thermopair experimental provision, is characterized in that: described display screen adopts LCD19264 liquid crystal display.
Described thermopair experimental provision, is characterized in that: the information of described display screen display comprises the temperature value of thermopair temperature end, the temperature value of thermopair low-temperature end, the platinum resistance resistance of temperature end, the temperature end of thermopair and the voltage difference of low-temperature end, the temperature end temperature value of setting.
Beneficial effect: the thermopair experimental provision that the utility model provides, 1, the thermopair experimental teaching of university can be widely used in, simple to operate, reliability is high, with the obvious advantage, has good application prospect and marketable value.2, this device intuitive display, can complete thermopair experiment without the need to configuring other instruments, liquid-crystal display information comprises the temperature value of temperature end, the temperature value of low-temperature end, the platinum resistance resistance of temperature end, the temperature end of thermopair and the voltage difference of low-temperature end, the temperature end temperature value of setting.
Accompanying drawing explanation
Fig. 1 is the utility model thermopair experimental provision panel figure.
Fig. 2 is the utility model thermocouple assembly design frame chart;
Fig. 3 is digital potentiometer schematic diagram in embodiment;
Fig. 4 is button schematic diagram in embodiment;
Fig. 5 is platinum resistance interface principle figure in embodiment;
Fig. 6 is thermopair interface principle figure in embodiment;
Fig. 7 is Fundamentals of Mono-Chip Computers figure in embodiment;
Fig. 8 is pilot lamp schematic diagram in embodiment;
Fig. 9 is power module schematic diagram in embodiment;
Figure 10 is master controller schematic diagram in embodiment;
Figure 11 is liquid crystal display principle figure in embodiment;
Figure 12 is heat driven schematic diagram in embodiment;
Figure 13 is low-temperature end platinum resistance modulate circuit schematic diagram in embodiment;
Figure 14 is embodiment fan drive principle figure;
Figure 15 is temperature end platinum resistance modulate circuit schematic diagram in embodiment;
Figure 16 is thermocouple voltages difference modulate circuit schematic diagram in embodiment;
In figure: 1-display screen, 2-digital potentiometer, 3-confirms button, 4-heating levels button.
Embodiment
Below in conjunction with specific embodiment, the utility model is further described.
As shown in Fig. 1 to Figure 16, a kind of thermopair experimental provision, comprises controller, signal conditioning circuit, heat driven, fans drive, digital potentiometer 2, display screen 1, key-press module and power module; Platinum resistance, thermopair, ptc heater, fan; Modulate circuit, heat driven, fans drive, digital potentiometer 2, display screen 1, key-press module are all connected with controller; Platinum resistance resistance, thermocouple voltages difference are transferred to controller by signal conditioning circuit, and the output terminal of heat driven is connected with ptc heater and heats to thermopair, and the output terminal of fans drive is connected with fan.
Key-press module comprises confirmation button 3 and heating levels button 4.
Controller adopts MSP430F169 single-chip microcomputer.
Described display screen adopts LCD19264 liquid crystal display.
The information of display screen display comprises the temperature value of thermopair temperature end, the temperature value of thermopair low-temperature end, the platinum resistance resistance of temperature end, the temperature end of thermopair and the voltage difference of low-temperature end, the temperature end temperature value of setting.
Its panel comprises display screen 1, digital potentiometer 2, confirms button 3, heating levels button 4
Controller adopts MSP430F169, and thermopair temperature end adopts ptc heater to heat, and the speed of heating is controlled by heating levels button 4, and the temperature of heating is by digital potentiometer 2 and confirm that button 3 is arranged.
Utility model works process is as follows: the temperature end temperature value being arranged thermopair by digital potentiometer 2, after confirming that button 3 confirms, heated by the temperature end of PTC heating plate to thermopair of internal system, by the temperature value of the platinum resistance real-time testing temperature end of temperature end, when being heated to the temperature end temperature value 1 degree that distance is arranged, heating levels is transformed to automatic transmission, starts radiator fan simultaneously; When reaching the temperature value of setting, by Single-chip Controlling fan and firing rate, reach mobile equilibrium, within positive and negative 0.2 degree that temperature remains on setting value.Now LCDs adopts LCD19264 to carry out parameter display, the temperature value of display temperature end, the temperature value of low-temperature end, the platinum resistance resistance of temperature end, the temperature end of thermopair and the voltage difference of low-temperature end, the temperature end temperature value of setting.
The above is only preferred implementation of the present utility model; be noted that for those skilled in the art; under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. a thermopair experimental provision, is characterized in that: comprise controller, signal conditioning circuit, heat driven, fans drive, digital potentiometer, display screen, key-press module and power module; Platinum resistance, thermopair, ptc heater, fan; Modulate circuit, heat driven, fans drive, digital potentiometer, display screen, key-press module are all connected with controller; Platinum resistance resistance, thermocouple voltages difference are transferred to controller by signal conditioning circuit, and the output terminal of heat driven is connected with ptc heater and heats to thermopair, and the output terminal of fans drive is connected with fan; Described digital potentiometer is for arranging the temperature end temperature value of thermopair.
2. thermopair experimental provision according to claim 1, is characterized in that: key-press module comprises confirmation button and heating levels button.
3. thermopair experimental provision according to claim 1, is characterized in that: controller adopts MSP430F169 single-chip microcomputer.
4. thermopair experimental provision according to claim 1, is characterized in that: described display screen adopts LCD19264 liquid crystal display.
5. thermopair experimental provision according to claim 4, is characterized in that: the information of described display screen display comprises the temperature value of thermopair temperature end, the temperature value of thermopair low-temperature end, the platinum resistance resistance of temperature end, the temperature end of thermopair and the voltage difference of low-temperature end, the temperature end temperature value of setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520397553.5U CN204695654U (en) | 2015-06-10 | 2015-06-10 | A kind of thermopair experimental provision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520397553.5U CN204695654U (en) | 2015-06-10 | 2015-06-10 | A kind of thermopair experimental provision |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204695654U true CN204695654U (en) | 2015-10-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520397553.5U Expired - Fee Related CN204695654U (en) | 2015-06-10 | 2015-06-10 | A kind of thermopair experimental provision |
Country Status (1)
| Country | Link |
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| CN (1) | CN204695654U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109545052A (en) * | 2018-12-26 | 2019-03-29 | 宝鸡文理学院 | A kind of SCM Based closed loop temperature adjustment experimental system |
-
2015
- 2015-06-10 CN CN201520397553.5U patent/CN204695654U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109545052A (en) * | 2018-12-26 | 2019-03-29 | 宝鸡文理学院 | A kind of SCM Based closed loop temperature adjustment experimental system |
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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: 20151007 Termination date: 20170610 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |