CN202887549U - Electricity and heat exploring demonstration device - Google Patents
Electricity and heat exploring demonstration device Download PDFInfo
- Publication number
- CN202887549U CN202887549U CN 201220575578 CN201220575578U CN202887549U CN 202887549 U CN202887549 U CN 202887549U CN 201220575578 CN201220575578 CN 201220575578 CN 201220575578 U CN201220575578 U CN 201220575578U CN 202887549 U CN202887549 U CN 202887549U
- Authority
- CN
- China
- Prior art keywords
- port
- display screen
- chip
- box body
- temperature sensor
- 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
Links
Images
Landscapes
- Control Of Resistance Heating (AREA)
Abstract
The utility model belongs to the technical field of teaching demonstration teaching aids and in particular relates to an electricity and heat exploring demonstration device which is direct-viewing in demonstration, good in effect and convenient in use. The electricity and heat exploring demonstration device comprises a box body, and is structurally characterized in that a singlechip, a power supply part and a voltage selection circuit are arranged in the box body; a supporting plate, a time display screen, a temperature display screen, a voltage selection knob and a power supply part control switch are arranged on the box body; a cup body is arranged on the supporting plate; a resistance wire and a temperature sensor are arranged in the cup body; the port of the power supply part is respectively connected with the port of the singlechip, the port of the voltage selection circuit, the port of the time display screen, the port of the temperature display screen and the port of the temperature sensor; the temperature sensor is sequentially connected with the singlechip by an LM358 chip and an AD0809 chip; and the port of the singlechip is respectively connected with the port of the time display screen and the port of the temperature display screen.
Description
Technical field
The utility model belongs to the demonstration teaching aid technical field, relates in particular to a kind of electricity and heat and probes into apparatus for demonstrating.
Background technology
At present, electricity is the experimental provision of checking Joule law with the experiment of heat mostly, i.e. checking: regularly the heat of generation is directly proportional with resistance when electric current, conduction time one.Existing experimental provision control variable is few, the experiment of carrying out inquiry that can not go deep into.In addition, existing experimental provision temperature shows the employing common thermometer, and the stopwatch mode is adopted in time measurement; When doing lecture experiment like this, most student cannot see reading, visibility is little, is not suitable with the requirement of new class standard.
Summary of the invention
The utility model is exactly for the problems referred to above, provides a kind of demonstrating visual, electricity and heat effective and easy to use to probe into apparatus for demonstrating.
For achieving the above object, the utility model adopts following technical scheme, and the utility model comprises box body, is provided with single-chip microcomputer, power pack and voltage selecting circuit in its structural feature box body; Be provided with supporting plate, time display screen, temperature display, voltage selection knob and power pack gauge tap on the box body, be provided with cup on the supporting plate, be provided with resistance wire and temperature sensor in the cup; Described power pack port links to each other with one-chip machine port, voltage selecting circuit port, time display screen port, temperature display port, temperature sensor port respectively, temperature sensor links to each other with single-chip microcomputer by LM358 chip, ADC0809 chip successively, one-chip machine port links to each other with time display screen port, temperature display port respectively, the voltage selecting circuit input end selects knob to link to each other with voltage, and the voltage selecting circuit output terminal links to each other with resistance wire.
As a kind of preferred version, single-chip microcomputer described in the utility model adopts the 89S51 single-chip microcomputer.
The utility model beneficial effect.
1, intuitive display.
Be provided with time display screen and temperature display on the utility model box body.Be convenient to value and temperature value observing time by time display screen and temperature display.
2, be convenient to regulate heating voltage.
Be provided with voltage on the utility model box body and select knob, the voltage selecting circuit input end selects knob to link to each other with voltage, and the voltage selecting circuit output terminal links to each other with resistance wire.Select knob to be convenient to regulate heating voltage by voltage.
3, temperature survey is accurate.
Be provided with resistance wire and temperature sensor in the utility model cup, temperature sensor links to each other with single-chip microcomputer by LM358 chip, ADC0809 chip successively.But by temperature sensor Measurement accuracy temperature.
4, simple in structure.
The utility model comprises box body, single-chip microcomputer, power pack, voltage selecting circuit, supporting plate, time display screen, temperature display, voltage selection knob, power pack gauge tap, cup, resistance wire, temperature sensor, LM358 chip, ADC0809 chip; Member is few, connection is simple.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described further.The utility model protection domain not only is confined to the statement of following content.
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model circuit theory diagrams.
Among the figure, 1 is that power pack gauge tap, 2 is selected knob, 3 for voltage and is supporting plate for temperature sensor, 9 for resistance wire, 8 for cup, 7 for box body, 6 for time display screen, 5 for temperature display, 4.
Embodiment
As shown in the figure, the utility model comprises box body 5, is provided with single-chip microcomputer, power pack and voltage selecting circuit in the box body 5; Be provided with supporting plate 9, time display screen 4, temperature display 3, voltage selection knob 2 and power pack gauge tap 1 on the box body 5, be provided with cup 6 on the supporting plate 9, be provided with resistance wire 7 and temperature sensor 8 in the cup 6; Described power pack port links to each other with one-chip machine port, voltage selecting circuit port, time display screen 4 ports, temperature display 3 ports, temperature sensor 8 ports respectively, temperature sensor 8 links to each other with single-chip microcomputer by LM358 chip, ADC0809 chip successively, one-chip machine port links to each other with time display screen 4 ports, temperature display 3 ports respectively, the voltage selecting circuit input end selects knob 2 to link to each other with voltage, and the voltage selecting circuit output terminal links to each other with resistance wire 7.
Described single-chip microcomputer adopts the 89S51 single-chip microcomputer.
Be understandable that, more than about specific descriptions of the present utility model, only for the utility model being described and being not to be subject to the described technical scheme of the utility model embodiment, those of ordinary skill in the art is to be understood that, still can make amendment or be equal to replacement the utility model, to reach identical technique effect; Use needs as long as satisfy, all within protection domain of the present utility model.
Claims (2)
1. electricity is probed into apparatus for demonstrating with heat, comprises box body (5), it is characterized in that being provided with single-chip microcomputer, power pack and voltage selecting circuit in the box body (5); Be provided with supporting plate (9), time display screen (4), temperature display (3), voltage selection knob (2) and power pack gauge tap (1) on the box body (5), be provided with cup (6) on the supporting plate (9), be provided with resistance wire (7) and temperature sensor (8) in the cup (6); Described power pack port links to each other with one-chip machine port, voltage selecting circuit port, time display screen (4) port, temperature display (3) port, temperature sensor (8) port respectively, temperature sensor (8) links to each other with single-chip microcomputer by LM358 chip, ADC0809 chip successively, one-chip machine port links to each other with time display screen (4) port, temperature display (3) port respectively, the voltage selecting circuit input end selects knob (2) to link to each other with voltage, and the voltage selecting circuit output terminal links to each other with resistance wire (7).
2. described electricity and heat are probed into apparatus for demonstrating according to claim 1, it is characterized in that described single-chip microcomputer adopts the 89S51 single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220575578 CN202887549U (en) | 2012-11-05 | 2012-11-05 | Electricity and heat exploring demonstration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220575578 CN202887549U (en) | 2012-11-05 | 2012-11-05 | Electricity and heat exploring demonstration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202887549U true CN202887549U (en) | 2013-04-17 |
Family
ID=48078953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220575578 Expired - Fee Related CN202887549U (en) | 2012-11-05 | 2012-11-05 | Electricity and heat exploring demonstration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202887549U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111292594A (en) * | 2020-04-02 | 2020-06-16 | 浙江安扬新能源科技有限公司 | A demonstration machine for demonstrating heating member heating effect |
-
2012
- 2012-11-05 CN CN 201220575578 patent/CN202887549U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111292594A (en) * | 2020-04-02 | 2020-06-16 | 浙江安扬新能源科技有限公司 | A demonstration machine for demonstrating heating member heating effect |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204359729U (en) | A kind of material thermal and insulating performance test comparison device | |
| CN205665316U (en) | Novel resistance automatic measure device | |
| CN205091380U (en) | Automatic change universal meter that specialty teaching was used | |
| CN202887549U (en) | Electricity and heat exploring demonstration device | |
| CN203672957U (en) | Non-contact test pencil | |
| CN207937500U (en) | A kind of touch screen type multimeter | |
| CN201837690U (en) | Debugging instrument of reactive compensation device | |
| CN201985387U (en) | Multifunctional electricity-metering multi-outlet socket | |
| CN201845483U (en) | Multi-functional temperature control experiment instrument | |
| CN204270574U (en) | A kind of thermocouple cold junction compensation demonstrator | |
| CN205484759U (en) | Intelligent DIY universal meter check gauge | |
| CN202650364U (en) | Resistance wire type potential difference meter device used for physical experimental teaching | |
| CN209310947U (en) | A kind of LED chip pulse junction temperature measurement device | |
| CN202771694U (en) | Gas pressure exploration teaching tool | |
| CN202177657U (en) | Digital electrical parameter measuring instrument | |
| CN203706535U (en) | Transformer practical training device | |
| CN202649814U (en) | A portable characteristic tester of an intelligent controller | |
| CN203705091U (en) | Process signal check meter | |
| CN202711554U (en) | Solution conductivity exploring teaching aid | |
| CN205506740U (en) | Test pen is heavily mixed to silicon material | |
| CN203490880U (en) | High-sensitivity electric meter used for experiments | |
| RU142148U1 (en) | TRAINING LABORATORY | |
| CN203967406U (en) | A kind of ammeter socket with the control of computer major-minor | |
| CN204495891U (en) | A kind of multimeter | |
| CN205139297U (en) | Ac voltage withstand test testing arrangement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20131105 |