CN202771694U - Gas pressure exploration teaching tool - Google Patents
Gas pressure exploration teaching tool Download PDFInfo
- Publication number
- CN202771694U CN202771694U CN 201220517824 CN201220517824U CN202771694U CN 202771694 U CN202771694 U CN 202771694U CN 201220517824 CN201220517824 CN 201220517824 CN 201220517824 U CN201220517824 U CN 201220517824U CN 202771694 U CN202771694 U CN 202771694U
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- container
- gas pressure
- piston
- chip microcomputer
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Abstract
The utility model relates to structural improvement of physical teaching tools, and provides a gas pressure exploration teaching tool which is high in measuring accuracy, convenient and visual in display and simple in structure. The gas pressure exploration teaching tool comprises a base, and a support is arranged on the base. The gas pressure exploration teaching tool is structurally characterized in that a container is arranged on the base, a gas pressure sensor is arranged at the bottom end of the container, a heating resistance wire and a temperature sensor are arranged on the lower portion of the container, a piston is arranged in the container and is connected with a cross rod positioned above the piston through a vertical rod, two ends of the cross rod are arranged in vertical sliding grooves of the support, fixing screws are arranged at two ends of the cross rod, output ends of the gas pressure sensor and the temperature sensor are connected with an input end of a single chip microcomputer through an ADC (analog digital converter) 0809 respectively, and an output end of the single chip microcomputer is respectively connected with a gas pressure display screen and a temperature display screen.
Description
Technical field
The utility model is divided by International Patent Classification (IPC) (IPC) and is belonged to physical department, education; Cryptology; Show; Advertisement; Seal branch, education or demonstration equipment; The apparatus that is used for teaching or communicates by letter with blind person, deaf person or mute; Model; Planetarium; Terrestrial globe; Map; The large class technical field of chart; In particular, relate to the improvement of physical teaching aid structure.
Background technology
At present, the technology about physical teaching aid existing and that once had has been made very fruitful effort to the function that increases physical teaching aid, also once designs many outstanding technical schemes.Such as being declared by Lei Haiping of State Intellectual Property Office in 2009 bulletin, Granted publication number is CN201181532, China Patent No. (ZL) is: No. 200820007541.7 utility model, title is the technical scheme that the utility model patent of " physical teaching aid " adopts, at the technical elements of physical teaching aid, be of great value innovation and creation.This utility model it by open containers, place in the container and the two ends line is drawn the thermometer that the outer resistance wire of container and an end insert in the container and formed, it is characterized in that, the average area of described container intracavity xsect is that 0.6 centimetre the area of a circle is between 3.8 centimetres the area of a circle to diameter between diameter; Perhaps this physical teaching aid is made of liquid-filled thermometer and resistance wire, it is characterized in that, described resistance wire twist, the vacuole of described liquid-filled thermometer is enclosed in the inside of this ressitance spiral; Perhaps this physical teaching aid is made of liquid-filled thermometer and resistance wire, it is characterized in that, described resistance wire is solidificated in the vacuole of liquid-filled thermometer, and stretch out beyond the vacuole at the two ends of described resistance wire.It has real warm changing value and is fit to theoretical value, the apparent outstanding effect of fast, the full student of class of temperature variation.But also have many deficiencies: it can't solve the problem of the pressure that uses existing physical teaching aid can not reflect accurately, intuitively gas and volume, temperature relation.
Summary of the invention
The utility model is exactly for the problems referred to above, provide a kind of measuring accuracy high, show that gas pressure intensity convenient, directly perceived and simple in structure probes into teaching aid.
For achieving the above object, the utility model adopts following technical scheme, and the utility model comprises base, be provided with support on the base, be provided with container on its structural feature base, the container bottom is provided with baroceptor, and the container bottom is provided with resistive heater and temperature sensor; Be provided with piston in the container, piston links to each other by the cross bar of montant with the piston top, and the cross bar two ends are arranged in the vertical chute of support, and the cross bar two ends are provided with fixed screw; The output terminal of described baroceptor and temperature sensor all links to each other with the input end of single-chip microcomputer by ADC0809, and the output terminal of single-chip microcomputer links to each other with air pressure display screen, temperature display respectively.
As a kind of preferred version, single-chip microcomputer described in the utility model adopts 89S51.
The utility model beneficial effect.
1, measuring accuracy is high.
The utility model container bottom is provided with baroceptor, and the container bottom is provided with temperature sensor.By baroceptor, temperature sensor air pressure, temperature are measured, measuring accuracy is high.
2, demonstration is convenient, directly perceived.
The output terminal of the utility model baroceptor and temperature sensor all links to each other with the input end of single-chip microcomputer by ADC0809, and the output terminal of single-chip microcomputer links to each other with air pressure display screen, temperature display respectively.By air pressure display screen, temperature display measured value is shown, it is convenient, directly perceived to show.
3, heating is convenient.
The utility model container bottom is provided with resistive heater.By resistive heater the gas in the container is heated, heating is convenient.
4, use, easy to adjust.
Be provided with piston in the utility model container, piston links to each other by the cross bar of montant with the piston top, and the cross bar two ends are arranged in the vertical chute of support, and the cross bar two ends are provided with fixed screw.Regulate the gas volume in the container by piston, montant, cross bar, vertical chute, and fix by fixed screw; Use, easy to adjust.
5, simple in structure.
The utility model comprises base, support, container, baroceptor, resistive heater, temperature sensor, piston, montant, cross bar, vertical chute, fixed screw, single-chip microcomputer, display screen; 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 temperature display, 2 is that air pressure display screen, 3 is that baroceptor, 4 is that resistive heater, 5 is that container, 6 is that fixed screw, 7 is that temperature sensor, 8 is piston.
Embodiment
As shown in the figure, the utility model comprises base, is provided with support on the base, is provided with container 5 on the base, and container 5 bottoms are provided with baroceptor 3, and container 5 bottoms are provided with resistive heater 4 and temperature sensor 7; Be provided with piston 8 in the container 5, piston 8 links to each other by the cross bar of montant with piston 8 tops, and the cross bar two ends are arranged in the vertical chute of support, and the cross bar two ends are provided with fixed screw 6; The output terminal of described baroceptor 3 and temperature sensor 7 all links to each other with the input end of single-chip microcomputer by ADC0809, and the output terminal of single-chip microcomputer links to each other with air pressure display screen 2, temperature display 1 respectively.
Described single-chip microcomputer adopts 89S51.
Be understandable that, above 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. a gas pressure intensity is probed into teaching aid, comprise base, be provided with support on the base, it is characterized in that being provided with on the base container (5), container (5) bottom is provided with baroceptor (3), and container (5) bottom is provided with resistive heater (4) and temperature sensor (7); Be provided with piston (8) in the container (5), piston (8) links to each other by the cross bar of montant with piston (8) top, and the cross bar two ends are arranged in the vertical chute of support, and the cross bar two ends are provided with fixed screw (6); The output terminal of described baroceptor (3) and temperature sensor (7) all links to each other with the input end of single-chip microcomputer by ADC0809, and the output terminal of single-chip microcomputer links to each other with air pressure display screen (2), temperature display (1) respectively.
2. described a kind of gas pressure intensity is probed into teaching aid according to claim 1, it is characterized in that described single-chip microcomputer adopts 89S51.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220517824 CN202771694U (en) | 2012-10-11 | 2012-10-11 | Gas pressure exploration teaching tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220517824 CN202771694U (en) | 2012-10-11 | 2012-10-11 | Gas pressure exploration teaching tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202771694U true CN202771694U (en) | 2013-03-06 |
Family
ID=47778253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220517824 Expired - Fee Related CN202771694U (en) | 2012-10-11 | 2012-10-11 | Gas pressure exploration teaching tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202771694U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104882049A (en) * | 2015-06-26 | 2015-09-02 | 沈向安 | Experimental syringe for exploring three gas laws based on DIS |
| CN104952323A (en) * | 2015-06-12 | 2015-09-30 | 浙江大学 | Self-circulation Bernoulli experimental device with teaching effect flow digital display function |
-
2012
- 2012-10-11 CN CN 201220517824 patent/CN202771694U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104952323A (en) * | 2015-06-12 | 2015-09-30 | 浙江大学 | Self-circulation Bernoulli experimental device with teaching effect flow digital display function |
| CN104952323B (en) * | 2015-06-12 | 2017-08-08 | 浙江大学 | Possesses self-loopa Bernoulli Jacob's experimental provision of teaching efficiency flow digital display |
| CN104882049A (en) * | 2015-06-26 | 2015-09-02 | 沈向安 | Experimental syringe for exploring three gas laws based on DIS |
| CN104882049B (en) * | 2015-06-26 | 2018-11-06 | 沈向安 | The experiment syringe of three law of gas is probed into based on DIS |
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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: 20130306 Termination date: 20131011 |