CN102426811A - Potential difference meter experimental apparatus - Google Patents
Potential difference meter experimental apparatus Download PDFInfo
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- CN102426811A CN102426811A CN2011103423822A CN201110342382A CN102426811A CN 102426811 A CN102426811 A CN 102426811A CN 2011103423822 A CN2011103423822 A CN 2011103423822A CN 201110342382 A CN201110342382 A CN 201110342382A CN 102426811 A CN102426811 A CN 102426811A
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Abstract
The invention discloses an acquiring, transmitting and real-time processing apparatus of experimental data of a potential difference meter. The apparatus comprises a potential difference meter board, a galvanometer, a circuit board embedded with a single-chip, a Bluetooth transmission module, a display and a computer used for collection and real-time processing of the experimental data and configured with a Bluetooth reception module. The apparatus is characterized in that the potential difference meter experimental apparatus is configured with an electronic digital display caliper which is connected with the single-chip; when a student needs to record data, data content measured by the electronic digital display caliper can be transmitted in real time and displayed on a display which is connected with the single-chip by pressing down a recording button on the circuit board which is embedded with the single-chip; after the student measures all the needed data, a data packet containing the data as well as the serial number and the name of the student can be transmitted to the computer through the Bluetooth transmission module by pressing down the sending button on the circuit board which is embedded with the single-chip; and then the computer performs subsequent processing on the data.
Description
Technical field
The present invention relates to a kind of Experiment of College Physics device, relate generally to a kind of collection, transmission and real time processing system of potential meter experiment data, belong to the Experiment of College Physics instrument field.
Background technology
Potential meter experiment is one of basic experiment of college physical experiment teaching, relates generally to and directly accurately measure potential difference (PD) in the electrical measurement, measures experiment contents such as cell emf.What domestic majority colleges and universities adopted at present is slip formula potential difference meter, and the student through moving the position of slider, reads the length of resistance wire in experimentation, at laboratory report paper identifying recording layer, thus the electromotive force of the potential difference (PD) of calculating or battery.
There are three problems in such experimentation; First: the experiment grasp degree for the student is difficult for understanding, and well-known, the plagiarism phenomenon between the student is ubiquitous; If the student has plagiarized other people experimental data after experiment; And submit laboratory report to this, experiment teacher can not in time find this, because student's data recording process is independent of teacher fully; To be exactly teacher grasp degree for student's experiment to the consequence that causes like this can not have one and well understand, and then cause deviation occurring for the assessment of quality of instruction; The second, time-consuming in data recording process, the effort of student, data are discrete to each other, are easy to generate mistake; The 3rd, to the processing of student data how by rule of thumb the experiment teacher deviation inevitably occurs in scoring process.
The present invention proposes to above-mentioned problem; A kind of collection, transmission and real time processing system of potential meter experiment data are provided; It can realize the experiment content of traditional electrical tentiometer, and conveniently reads experimental data accurately, transmits experimental data and handle experimental data in real time.In teaching, can change experiment content at any time according to the experiment needs, simple, easy row.
Summary of the invention
According to one embodiment of the invention; A kind of collection, transmission and real time processing system of potential meter experiment data are provided, have comprised: potential difference meter, the circuit board that is embedded with single-chip microcomputer, Bluetooth wireless transmission module, LCD, the computing machine and the data processor that are used for the experimental data collection and handle in real time.
Existing slip formula potential difference meter technology is very ripe, no longer gives unnecessary details at this.The invention is characterized in: be furnished with digimatic calipers on this potential meter experiment appearance; This digimatic calipers is connected with single-chip microcomputer; In the time of the needs of students record data; Press " record " button, single-chip microcomputer can be real-time transmitted to digimatic calipers data measured content and be presented on the coupled LCD that connects.After the student all measured desired data, by " transmission " button, the packet that comprises above-mentioned data and student numbering and name sent to through the Bluetooth transmission module on teacher's the computing machine, by computing machine data is carried out subsequent treatment again.
Through said apparatus, just solve aforesaid problem, after whenever once testing; The student can both be real-time the experimental data of on display, seeing this time; Also be the angle that telescope turned over, if dissatisfied for experimental result, could be directly with data deletion; Again experimentize, what it was seen at last is whole experimental data of an integral body; Moreover after the each experiment of student finished, the experimental data that all needs to include personal information sent on teacher's the computing machine, can guarantee that teacher sees the experimental data that each student is original, has effectively prevented to plagiarize between the student generation of phenomenon; The 3rd, adopt this system, computer program with Data Processing in Experiment and storage after, can call at any time, as the objective basis of teacher when the given laboratory report mark, thereby carry out conveniently, just experimental evaluation.
Description of drawings
Fig. 1 is the potential difference meter structural representation;
Fig. 2 is collection, transmission and the receiver module synoptic diagram of potential meter experiment device data;
In above-mentioned figure, R representes slide rheostat, and E representes power supply, and K representes switch, and M and N represent slider, and En representes standard cell, and Ex representes unknown battery to be measured, K
1The expression double-point double-throw switch, G representes sensitive galvanometer, Rp representes protection switch, K
2The expression switch, 1 expression scale.
2 expression electronic digital display scales, 3 expression single-chip microcomputers, 4 expression displays, 5 expression Bluetooth transmission modules, 6 expressions are furnished with the computing machine of bluetooth receiver module.
Specific embodiment
Fig. 1 shows the circuit diagram of potential meter experiment among the present invention, and this part is consistent with potential difference meter of the prior art, has installed digimatic calipers 2 additional at slider N and 1 on scale among the present invention.
The invention is characterized in its collection that also comprises data, transmission and receiver module.The student moves slider N, when electric current is 0 among the galvanometer G, by " record " button on the circuit board that is embedded with single-chip microcomputer; Single-chip microcomputer reads the reading of digimatic calipers automatically; Obtain the length of resistance wire, and with on this data transmission to one coupled display that connects, and; Be embedded with on the circuit board of single-chip microcomputer and also be provided with " transmission " button and Bluetooth transmission module; Said through pressing " transmission " button, said Bluetooth transmission module can be sent to the bluetooth receiver module on teacher's computing machine with the packet that includes student information and above-mentioned data, receives back storage and processing on this computing machine.
Display: the data that the singlechip chip collection is come are all shown experiment content and data by one 8 inch TFT LCD.The experimental data that the student observes through liquid crystal display has associative perception, can be through the data of contrast different measuring group, the operating mistake that possibly exist in the judgment experiment.For misdata, can directly delete by " deletion " key on the circuit board that is embedded with single-chip microcomputer.The user can also select LCD different, suitable dimension according to what difference of data in the experiment.
Data transmit: experimental data is stored in the single-chip microcomputer temporarily, and the circuit board that is embedded with single-chip microcomputer is provided with " transmission " button, clicks this button, and then data send through the blue teeth wireless signal through bluetooth module.
Data Receiving: be inserted with Bluetooth adapter on the computing machine as the bluetooth receiver module, can receive Bluetooth signal.
Data in real time is handled: the program that writes is arranged on the computing machine, read the data that Bluetooth adapter receives, the storage experimental data is to being in the file of filename, as data backup with student's student number and name.Simultaneously; Computer program also can be handled experimental data, is presented on the computer screen experiment quality of doing with teacher's real-time judge student of convenient teaching during fructufy after the processing; And objective basis is provided for correcting laboratory report, make things convenient for the teacher to screen the accuracy of student data.
If want to change the part experiment content, only need in single-chip microcomputer write-in program again, adjustment liquid crystal display displaying contents is rewritten computer processing, can practice thrift big measuring appratus and upgrade and improvement expenses.
Claims (3)
1. the collection of potential meter experiment data, transmission and real-time treating apparatus; Comprise: potential difference meter plate, galvanometer, the circuit board that is embedded with single-chip microcomputer, Bluetooth transmission module, display, the computing machine that disposes the bluetooth receiver module that is used for the experimental data collection and handles in real time; It is characterized in that: be furnished with digimatic calipers on this potential meter experiment appearance; This digimatic calipers is connected with single-chip microcomputer; In the time of the needs of students record data, press " record " button on the circuit board that is embedded with single-chip microcomputer, can be with on the display that digimatic calipers data measured content is real-time transmitted to and is presented at single-chip microcomputer is connected; After the student all measures desired data; Press " transmission " button on the circuit board that is embedded with single-chip microcomputer, the packet that comprises above-mentioned data and student numbering and name sends on the said computing machine through the Bluetooth transmission module, by computing machine data is carried out subsequent treatment again.
2. device according to claim 1, said display are LCD.
3. device according to claim 1, said " deletion " key that also is provided with on the circuit board of single-chip microcomputer that is embedded with is used for the experimental data in experimentation deletion action mistake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110342382 CN102426811B (en) | 2011-10-28 | 2011-10-28 | Potential difference meter experimental apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110342382 CN102426811B (en) | 2011-10-28 | 2011-10-28 | Potential difference meter experimental apparatus |
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| Publication Number | Publication Date |
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| CN102426811A true CN102426811A (en) | 2012-04-25 |
| CN102426811B CN102426811B (en) | 2013-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110342382 Expired - Fee Related CN102426811B (en) | 2011-10-28 | 2011-10-28 | Potential difference meter experimental apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108766148A (en) * | 2018-05-29 | 2018-11-06 | 西安电子科技大学 | Program-controlled potential difference meter experiment instrument |
Citations (3)
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| CN1439861A (en) * | 2003-03-20 | 2003-09-03 | 上海交通大学 | Water proof electronic digital display callipers |
| CN201444024U (en) * | 2009-03-16 | 2010-04-28 | 刘爱忠 | Electronic digital display multifunctional adhesive tape measuring scale |
| CN202352200U (en) * | 2011-10-28 | 2012-07-25 | 华北电力大学（保定） | Potentiometer experimental device |
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2011
- 2011-10-28 CN CN 201110342382 patent/CN102426811B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1439861A (en) * | 2003-03-20 | 2003-09-03 | 上海交通大学 | Water proof electronic digital display callipers |
| CN201444024U (en) * | 2009-03-16 | 2010-04-28 | 刘爱忠 | Electronic digital display multifunctional adhesive tape measuring scale |
| CN202352200U (en) * | 2011-10-28 | 2012-07-25 | 华北电力大学（保定） | Potentiometer experimental device |
Non-Patent Citations (3)
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| 卢伟国等: "基于蓝牙的无线数据采集系统", 《电测与仪表》 * |
| 胡冰: "单片机技术对传统电位差计实验的改进", 《中南民族大学学报(自然科学版)》 * |
| 许志成等: "数字电位差计的设计与研制", 《西北建筑工程学院学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108766148A (en) * | 2018-05-29 | 2018-11-06 | 西安电子科技大学 | Program-controlled potential difference meter experiment instrument |
| CN108766148B (en) * | 2018-05-29 | 2020-09-15 | 西安电子科技大学 | Program control potentiometer experimental instrument |
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| Publication number | Publication date |
|---|---|
| CN102426811B (en) | 2013-07-31 |
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