CN111862735A - Labview-based middle school physics experiment system and operation method thereof - Google Patents
Labview-based middle school physics experiment system and operation method thereof Download PDFInfo
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Abstract
The invention discloses an operation method of a middle school physics experiment system based on labview, which comprises the following steps: through a system login module, a user inputs information and logs in; skipping to an experiment selection module, and selecting seven experiment parts or log-out by a user according to needs; entering an experiment module, browsing experiment names, experiment purposes, experiment principles, experiment steps, experiment results and experiment conclusion knowledge by a user, operating the experiment module according to an experiment operation flow and generating corresponding data; the user analyzes and processes the data generated by the experiment module, and summarizes and concludes the experiment conclusion; the user can practice and consolidate knowledge by consolidating the practice selection board. The invention designs the physical experiment system of middle school under the virtual simulation technology by using labview as a platform, the experiment operation is not limited by time and space, and the physical experiment system can be used for middle school students to learn in and out of class, thereby improving the experiment teaching effect.
Description
Technical Field
The invention relates to the field of middle school physical experiment teaching, in particular to a middle school physical experiment system based on Labview and an operation method thereof.
Background
With the rapid development of information technology and the popularization of educational informatization, more and more computer technologies are researched and applied in the educational field, and the informatization tool-assisted teaching becomes one of research hotspots. Many problems to be solved exist in the current middle school physics experiment teaching, such as uneven distribution of education resources, insufficient old experimental equipment, backward experimental conditions and the like, and the problems restrict the implementation of the middle school physics experiment teaching. Students may not get correct experimental conclusions within a short time in a classroom, and repeated experimental verification cannot be carried out after class under experimental conditions, so that the experimental teaching effect cannot be guaranteed. The problems can be well solved by constructing a middle school physical experiment system under the virtual simulation technology by taking the virtual instrument technology as the background.
Disclosure of Invention
In order to solve the technical problems, the invention provides a middle school physics experiment system based on Labview, which has a simple structure and a wide application range, and provides an operation method thereof.
The technical scheme for solving the problems is as follows: a middle school physics experiment system based on Labview comprises a system login module used for an experimenter to log in the system, an experiment selection module used for selecting an implementation type, and an experiment module used for carrying out experiments, wherein the system login module, the experiment selection module and the experiment module are sequentially connected.
The Labview-based middle school physics experiment system comprises a system login module, a system password input module, two character input controls, a user identity selection enumeration unit, a login key, an exit key, three condition structures, an event structure and a while loop, wherein the condition structures are used for judging whether a true value of an input value is present or not and executing module skipping, and the event structures are used for judging whether two corresponding login keys and exit keys are pressed or not, and corresponding skipping and program calling after the two corresponding login keys and exit keys are pressed.
In the Labview-based middle school physics experiment system, the experiment selection module comprises a character string display control, an acoustic experiment control, an optical experiment control, an electrical experiment control, a mechanical experiment control, a thermal experiment control, a kinematic experiment control, a signal experiment control and a return login control, and a user presses a corresponding Boolean control to execute corresponding jump.
The Labview-based middle school physics experiment system comprises an acoustic experiment module, an optical experiment module, an electrical experiment module, a mechanical experiment module, a thermal experiment module, a kinematic experiment module and a signal experiment module, wherein an experiment panel of each experiment module comprises seven selection boards of an experiment name, an experiment purpose, an experiment principle, an experiment step, an experiment result, an experiment conclusion and a consolidation exercise; the acoustic experiment module comprises three middle school physical experiments, sound velocity simulation under different media, and sound velocity measurement experiments by a standing wave method and a phase method; the optical experiment module comprises a light reflection experiment; the electrical experiment module comprises a sliding circuit experiment and two physical electrical experiments for measuring the resistance by an internal and external connection method; the mechanical experiment module comprises a system for measuring the stiffness of the spring by a static stretching method and a system for measuring the accuracy coefficient of the spring by a dynamic resonance method.
An operation method of a middle school physics experiment system based on labview comprises the following steps:
the method comprises the following steps: through a system login module, a user inputs information and logs in;
step two: after logging in, the system jumps to an experiment selection module, and a user selects seven experiment parts or log-out parts according to the requirement;
step three: entering an experiment module, browsing experiment names, experiment purposes, experiment principles, experiment steps, experiment results and experiment conclusion knowledge by a user, operating the experiment module according to an experiment operation flow and generating corresponding data;
step four: the user analyzes and processes the data generated by the experiment module, and summarizes and concludes the experiment conclusion;
step five: the user can practice and consolidate knowledge by consolidating the practice selection board.
In the operating method of the labview-based middle school physical experiment system, in the first step, a user logs in the system after correctly inputting login information in the letter string input in the front panel of the experiment login module and selects login identity, and the system displays corresponding login information in the character string display frame, then automatically jumps to the experiment selection module and closes a login module window.
In the second step, a user enters an experiment selection module after logging in, an experiment to be performed is selected in the experiment selection module, the experiment content covers seven aspects of sound, light, electricity, force, heat, signals and movement in physics, eight Boolean keys are arranged on a front panel of the experiment selection module, seven Boolean keys respectively correspond to the physical experiments of the seven doors, the other Boolean key is a return login Boolean key, and each Boolean key is pressed down to correspondingly execute corresponding experiment opening; after clicking, the system realizes skipping and simultaneously closes the interface window of the experiment selection module.
In the third step, after selecting an experiment, a user jumps to the experiment module, the experiment module learns the experiment purpose, the experiment principle and the experiment steps, then the experiment operation interface is performed to perform the experiment operation, the experiment related parameters are synchronously obtained, in the experiment operation part, part of the experiment is composed of Flash calling and labview control operation, and the experiment operation learning is performed by combining the operation.
In the fourth step, after the user performs the experiment operation, the synchronous acquisition of data can be realized in the continuous operation state, a plurality of groups of experiment data are acquired by adjusting the control and changing the input parameters, and the acquired experiment data are summarized to obtain the experiment conclusion.
In the fifth step, after obtaining the experiment conclusion, the experimenter enters a consolidated practice selection board to check the experiment knowledge, the system judges the experiment learning condition of the user through the selection of two typical questions, the user answers the questions by clicking the Boolean control of the corresponding option, and whether the corresponding lamp is on or not is determined whether the answer is correct or not.
The invention has the beneficial effects that:
1. the invention utilizes labview as a platform to design a middle school physical experiment system under a virtual simulation technology, can solve the problem of difficult experiment caused by experiment resource shortage and uneven distribution of regional teaching resources in the current physical experiment teaching, is free from time and space limitation in experiment operation, can be used for middle school students to carry out physical experiment learning within and outside a class, has good simulation, simple interface and strong interactivity, can promote the physical experiment teaching, improves the experiment teaching effect, and is used for assisting the experiment teaching to play a good supplementary role in the traditional experiment teaching.
2. The invention provides a novel physical experiment teaching mode suitable for a turnover classroom mode, changes the traditional single physical experiment teaching mode, and provides an autonomous exploration type experiment learning mode which takes students as main bodies.
3. Compared with other tools applying multimedia technology to assist experimental teaching, the combined use of the multiple informatization tools has advantages, and can better induce students to perceive, train the experimental operation capability of learning and cultivate the core scientific literacy.
Drawings
FIG. 1 is a general block diagram of the system of the present invention.
FIG. 2 is a panel diagram of the system login module of the present invention.
FIG. 3 is a block diagram of a system login module of the present invention.
FIG. 4 is a panel diagram of an experimental selection module of the present invention.
FIG. 5 is a block diagram of the experimental selection module of the present invention.
Fig. 6 is a front panel view of an acoustic experimental module of the present invention.
Fig. 7 is a block diagram of a process of an acoustic experiment module of the present invention.
Fig. 8 is a front panel view of a flat projectile motion experiment in the kinematics experiment module of the present invention.
Fig. 9 is a block diagram of a process of a horizontal projectile motion experiment in the kinematics experiment module of the present invention.
Fig. 10 is a front panel view of a uniform velocity linear motion experiment in the kinematics experiment module of the present invention.
Fig. 11 is a block diagram of a sequence of a ramp linear motion experiment in the kinematics experiment module of the present invention.
Fig. 12 is a front panel diagram of signal generation in the signal waveform experimental block of the present invention.
Fig. 13 is a front panel diagram of signal processing in the signal waveform experimental module according to the present invention.
Fig. 14 is a block diagram of a signal generation routine in the signal waveform experimental block of the present invention.
Fig. 15 is a block diagram of a signal processing routine in the signal waveform experimental block according to the present invention.
FIG. 16 is a front panel view of a slide circuit experiment in the electrical experiment module of the present invention.
FIG. 17 is a front panel of the electrical experiment module for measuring resistance by internal and external connection method.
Fig. 18 is a block diagram of the procedure of fig. 16 and 17.
FIG. 19 is a front panel of the experiment for measuring stiffness coefficient by static tension method in the electrical experiment module of the present invention.
FIG. 20 is a front panel of the experiment for measuring stiffness coefficient by dynamic resonance method in the electrical experiment module of the present invention.
Fig. 21 is a block diagram of the routine of fig. 19 and 20.
FIG. 22 is a front panel of the optical experimental module of the present invention.
FIG. 23 is a block diagram of the optical experiment module of the present invention.
FIG. 24 is a front panel of the thermo-optic experimental module of the present invention.
FIG. 25 is a block diagram of the process of the thermo-optic experimental module of the present invention.
FIG. 26 is a video call front panel in flip mode according to the present invention.
Detailed Description
The invention is further described below with reference to the figures and examples.
As shown in fig. 1, a middle school physics experiment system based on Labview comprises a system login module for a experimenter to log in the system, an experiment selection module for selecting an implementation type, and an experiment module for performing an experiment, wherein the system login module, the experiment selection module, and the experiment module are connected in sequence.
As shown in fig. 2 and fig. 3, the system login module includes a user name input unit, a user password input unit, two character input controls, a user identity selection enumeration unit, a login button, an exit button, three condition structures, an event structure and a while loop, wherein the condition structures are used for determining whether the input value is true or not and executing module jump, and the event structure is used for determining whether the two corresponding login buttons and exit buttons are pressed, and corresponding jump and program call after the two corresponding login buttons and exit buttons are pressed.
As shown in fig. 4 and 5, the experiment selection module includes a string display control, an acoustic experiment control, an optical experiment control, an electrical experiment control, a mechanical experiment control, a thermal experiment control, a kinematic experiment control, a signal experiment control, and a return login control, and the user presses the corresponding boolean control to perform a corresponding jump. Eight events are constructed in a program block diagram panel, corresponding to the execution action after a key is pressed, a certain time delay is set by opening a VI control, inputting the position of a corresponding experiment in a computer in a path link and adding a clock control to ensure that the jump is not too fast, and meanwhile, the original VI after the jump is closed is realized by connecting a VI closing control with the VI.
The experimental module includes acoustics experiment module, optics experiment module, electricity experiment module, mechanics experiment module, calorifics experiment module, kinematics experiment module, signal experiment module, the experimental panel of every experiment module all includes the experiment name, the experiment purpose, the experiment principle (including the schematic diagram), the experimental step, the experimental result (picture, data record), the experiment conclusion, seven optional boards of consolidation exercise, the user is through the experiment purpose, the experiment principle, the experimental step carries out knowledge study, carry out operation simulation experiment operation and draw experimental data on the experimental result, carry out analysis processes to producing experimental data afterwards, draw the experiment conclusion, consolidate the exercise to experimental knowledge on consolidating the exercise optional board at last. In the experiment names, each experiment controls the display of the experiment name by a display character string, and the experiment name can be displayed on a tab after clicking operation. The experiment purpose is mainly displayed in a text display mode, so that a user can conveniently learn knowledge. The experiment principle is that the experiment related principle is described in two forms of characters and pictures, the experiment result is designed according to the experiment principle, and the experiment conclusion is obtained by a user through the experiment result and data analysis. The consolidation exercise part selects typical examples to check the knowledge mastery degree of the learner.
The acoustic experiment design front panel is shown in fig. 6, the acoustic experiment comprises three middle school physics experiments, sound velocity simulation under different media, a standing wave method and a phase method sound velocity measurement experiment, the front panel of the experiment comprises an experiment name, an experiment principle, an experiment purpose, an experiment result and the like, the experiment related knowledge is displayed in the form of characters and pictures in the experiment purpose and experiment principle part, and the transmission of sound waves is displayed by adopting a waveform diagram and a waveform diagram. The experimental interface for measuring the sound velocity by the standing wave method comprises three numerical value inputs, a data adjusting control, an array display and a waveform chart, the distance between adjacent peak values is determined by finely adjusting the distance between S1 and S2 to observe the waveform peak values, the recording is repeated and substituted into a formula to calculate, the panel for measuring the sound velocity by the standing wave method also comprises the numerical value input control, the waveform chart and the array display, the Lisha graph in the waveform chart is observed by adjusting the input numerical value, the position corresponding to the graph (according to an experimental principle chart) of the graph at a specific position is recorded, and the calculation is carried out according to the position to obtain a simulated sound velocity value and the comparison is carried out. The acoustic experiment part consolidates the practice part to simulate two related sound velocity problems, and controls whether answer character strings are displayed or not through a Boolean switch. The program diagram is shown in fig. 7, the selection of the medium of the sound velocity simulation part is controlled by enumeration, the condition structure is adopted to correspond to the operation between the corresponding attenuation coefficient and the medium sound velocity under each medium enumeration frame, the mathematical operation between input numerical values is realized by adopting a formula node mode to obtain an operation result, then numerical value types are converted and input to a waveform chart for displaying, the display of the answer to the question on the exercise selection board is controlled by an event structure, the corresponding key is pressed to execute the corresponding display, and the hiding adopts an empty character string to replace an answer character string to realize the hiding of the answer.
FIG. 8 shows a plate for a horizontal projectile motion experiment of a front panel for a kinematics experiment, wherein a kinematics experiment module comprises two experiments of a horizontal projectile motion experiment and a uniform variable speed linear motion experiment, the experiment purpose and the step principle part are all displayed by experiment characters, the horizontal projectile motion experiment panel is displayed by an array (displaying the position of an object in equal time intervals) of three waveform charts (respectively a falling height and time chart, a horizontal displacement and time chart and a transverse and longitudinal displacement comparison chart) input by two numerical instruments (respectively a sampling time interval and an object initial speed), and an ActiveX window is used for calling Flash, after continuous operation is selected in labview, the synchronization of input, chart and data display can be realized, an experiment conclusion is obtained by recording relevant parameters and analyzing and processing, an object motion track image simulating unknown acceleration is added in the experiment module, the learner obtains experimental knowledge by analyzing the motion trail of the unknown acceleration object, and the user observes and analyzes the horizontal throwing motion trail of the small ball and the vertical and horizontal decomposition of the trail through Flash animation demonstration and Flash photos, so that the visibility of the experiment is increased, and the experiment teaching effect is improved. The calling procedure block diagram of Flash is shown in fig. 9, where an ActiveX control is added under a while loop and Flash is selected, a boolean button control is added to control the playing of Flash animation, and a delay is added in the loop.
The front panel of the uniform variable speed linear motion experiment module is shown in fig. 10, and comprises an ActiveX window for calling Flash (displaying a parameter image when an object block is in uniform variable speed linear motion), a waveform chart control and two numerical inputs, wherein the ActiveX window simulates a track of an object under corresponding parameters for performing uniform variable speed linear motion, and the position of the object on the track is displayed at equal time intervals. Fig. 11 is a block diagram of a kinematic experiment module program, in which two while loops respectively correspond to two experiments in a front panel, an event structure controls questions and answers for consolidating exercise selection, time T at each time point is obtained by establishing a constant array and multiplying the array by an input control time interval, horizontal and vertical positions at each time point can be obtained by adding a numerical operation control, two sets of data are bound and connected to an input end of a waveform chart, display of horizontal and vertical displacement trajectories of an object is realized, object motion at an unknown initial speed is simulated, numerical motion is performed by adding a random control function, and then the random control function is multiplied by the constant array and connected to the waveform chart for display.
The front panel of the signal experiment module is shown in fig. 12 and 13, the panel of the program block diagram is shown in fig. 14 and 15, the module calls a signal waveform function mainly through waveforms in a labview control library, controls the display of various waveforms through enumeration, connects numerical value input control at the input end of the waveform function, realizes synchronous control of waveforms through regulating the input of waveform parameters, and adds filtering and superposition operation of signal waveforms in waveform processing. An experimenter can generate corresponding frequency by adjusting the amplitude and the frequency of an input signal, a noise adding switch controls whether noise is added to a generated signal waveform, uniform white noise, periodic random noise, Gaussian white noise and Poisson noise are selected in noise enumeration, and a waveform signal in an interference state is simulated. And respectively carrying out amplitude spectrum, phase spectrum, real part spectrum and imaginary part spectrum analysis on the signal by using the four oscillograms. In the non-periodic signal selection, a user can select impulse signals, sinc signals, ramp signals, pulse signals and other signals to generate, the signals are adjusted on the adjustment selection, and after the signals are generated, a spectrum analyzer can perform spectrum analysis on the amplitude, the phase, the real part and the imaginary part of the generated fly-periodic signals. Experiments can learn relevant knowledge from images processed by the system.
The electrical experiment module is shown in fig. 16, 17, 18 and 19, and comprises a simple sliding circuit experiment and two physical electrical experiments of internal and external resistance measurement, in the experiment-sliding rheostat circuit module, a given value is input to simulate the circuit, whether a bulb is on or not displays the on-off condition of the circuit, after a specified parameter is input, the state of the circuit is adjusted by adjusting the sliding rheostat, a corresponding current and voltage value is generated in a waveform chart, and a volt-ampere characteristic curve of the circuit is observed by tracing a point connecting line, so that related circuit knowledge is known.
In the experiment two, the internal connection method and the external connection method, a learner operates the system after reading knowledge displayed by the experiment principle, after inputting and filling relevant parameters of the resistance to be detected, the power supply voltage, the internal resistance of the voltmeter and the internal resistance of the electrorheological, the learner can only visually observe the resistance values detected in two forms of the internal connection method and the external connection method, the relevant knowledge is checked by comparing the difference between the generated value and the given value, and meanwhile, the learner can be used for exploring the application conditions of the internal connection method and the external connection method. In the program diagram, a formula node mode is adopted to carry out data operation in the circuit, parameters given by a data input end are operated, and an actual current value in the circuit is calculated.
The front panel of the mechanical experiment module is shown in fig. 20 and 21, the program block diagram is shown in fig. 22, the experiment comprises two experiments of measuring the stiffness of the spring by a static stretching method and measuring the accuracy coefficient of the spring by a dynamic resonance method, in the static stretching method experiment, the front panel adopts a sliding rod to simulate the stretching condition of the spring, four groups of springs with given stiffness coefficients are stretched, a user inputs and controls the input magnitude of stretching force through an instrument, and the stretching amounts of different springs are observed and analyzed to obtain an experiment conclusion. In the experiment of measuring the stiffness coefficient of the spring by a dynamic stretching method, numerical operation is used for calculating input, and a conclusion is obtained and converted into an array and output to a wave chart. The calculation formula is as follows:
according to newton's second law: mX1＝kX2
Simultaneous spring system vibration angular frequency
Then: x1＝kX2/m
The system has a vibration period of
So that k is 4 pi2m/T2
And simultaneously, analyzing the spring under the random stiffness coefficient obtained by simulation, calculating the stiffness coefficient of the spring and obtaining an experimental conclusion through analysis.
The optical experiment module front panel is as shown in fig. 22, the reflection experiment demonstration of light is performed through Flash calling, a user inputs related parameters in the lower input control, the system displays the reflection condition of light under the corresponding parameters and gives a judgment value, the experiment is synchronously controlled according to data, and the conclusion of the experiment is concluded. The block diagram is shown in fig. 23.
As shown in fig. 24, the front panel of the thermal experimental module is drawn by a waveform ratio chart to depict a real-time variation curve of the temperature of a substance, so that a user can select the kind of the substance from enumeration in which 11 substances such as soil, copper, iron, water and the like are selected by an experimenter, and an experimental conclusion is obtained by comparing the temperature variation curves of different substances. The method comprises the steps of realizing variable control through material quality input, initial temperature input, heating condition control and sampling interval input, exploring the amount of the same material under the condition of keeping a single variable, controlling the temperature change speed of different materials under the condition of the same initial temperature and the same heating condition, controlling different initial temperatures, different qualities and the like to conduct experimental exploration under the condition of the same other conditions, and controlling the parameter selection of various materials by enumeration by adopting a condition structure under a while cycle, wherein a program block diagram is shown in figure 25, and corresponding data are input into a waveform chart for displaying after operation.
The physical experiment teaching system in the turnover classroom mode comprises three steps, namely: the teacher selects learning materials (text, video, micro-class and the like) before class and stores the learning materials into a computer, or calls the materials on the network, and the teacher sends a file path and network connection to students. The second step is that: NET window learns experimental knowledge, then uses system to do experimental learning operation, and summarizes conclusion and question. The third step: and returning to the classroom to comb and solve the problems and finishing the experiment teaching. The video call procedure block under the system is shown in fig. 26.
An operation method of a middle school physics experiment system based on labview comprises the following steps:
the method comprises the following steps: through the system login module, the user inputs information and logs in.
The user logs in the system after correctly inputting the login information in the letter string input in the front panel of the experiment login module, selects the login identity, and the system displays the corresponding login information in the character string display frame, then automatically jumps to the experiment selection module and closes the login module window.
Step two: after logging in, the system jumps to an experiment selection module, and a user selects seven experiment parts or log-out according to needs.
The user enters an experiment selection module after logging in, an experiment to be performed is selected in the experiment selection module, the experiment content covers seven aspects of sound, light, electricity, force, heat, signals and movement in physics, eight Boolean keys are arranged on a front panel of the experiment selection module, seven Boolean keys respectively correspond to the physical experiments of the seven doors, the other Boolean key is a return login Boolean key, and each Boolean key is pressed down to correspondingly execute corresponding experiment opening; after clicking, the system realizes skipping and simultaneously closes the interface window of the experiment selection module.
Step three: and entering an experiment module, browsing experiment names, experiment purposes, experiment principles, experiment steps, experiment results and experiment conclusion knowledge by a user, operating the experiment module according to an experiment operation flow and generating corresponding data.
The user jumps to the experiment module after selecting the experiment, learns the experiment purpose, the experiment principle and the experiment steps in the experiment module, then performs experiment operation on an experiment operation interface, synchronously acquires experiment related parameters, and in the experiment operation part, part of the experiment is composed of Flash calling and labview control operation, and experiment operation learning is performed by combining use.
Step four: and analyzing and processing the data generated by the experiment module by the user, and summarizing and concluding the experiment conclusion.
After the experiment operation is carried out by a user, the synchronous acquisition of data can be realized in a continuous operation state, a plurality of groups of experiment data are acquired by adjusting the control and changing the input parameters, and the acquired experiment data are summarized to obtain an experiment conclusion.
Step five: the user can practice and consolidate knowledge by consolidating the practice selection board.
The experimenter enters a consolidated exercise selection board to check experimental knowledge after acquiring an experimental conclusion, the system judges the experimental learning condition of the user through the selection of two typical questions, the user answers questions by clicking a Boolean control of a corresponding option, and whether a corresponding lamp is lighted or not is determined whether the answer is correct or not.
The experimental system under the turnover classroom mode is used, a teacher needs to perform relevant experiment preparation work before an experiment, learning videos and recorded micro-class videos related to the experiment are stored in the system or are well linked to inform students in class, the students can check the learning videos through inputting the link in the path input of the video calling module before the class, and the learning videos can also be skipped to network link learning experiment knowledge through a NET window in labview, then the learning system enters the system to perform experiment operation learning, and the teacher returns to the classroom to perform communication summary on problems existing in the experiment.
Claims (10)
1. A middle school physics experiment system based on Labview is characterized in that: the system comprises a system login module for logging in the system by an experimenter, an experiment selection module for selecting the implementation type and an experiment module for carrying out experiments, wherein the system login module, the experiment selection module and the experiment module are sequentially connected.
2. The Labview-based middle school physics experimental system of claim 1, wherein: the system login module comprises a user name input unit, a user password input unit, two character input controls, a user identity selection enumeration unit, login keys, an exit key, three condition structures, an event structure and a while loop, wherein the condition structures are used for judging whether the input value is true or not and executing module jump, and the event structures are used for judging whether the two corresponding login keys and the exit key are pressed down and corresponding jump and program call after the two corresponding login keys and the exit key are pressed down.
3. The Labview-based middle school physics experimental system of claim 2, wherein: the experiment selection module comprises a character string display control, an acoustic experiment control, an optical experiment control, an electrical experiment control, a mechanical experiment control, a thermal experiment control, a kinematic experiment control, a signal experiment control and a return login control, and a user presses a corresponding Boolean control to execute corresponding jump.
4. The Labview-based middle school physics experimental system of claim 3, wherein: the experimental module comprises an acoustic experimental module, an optical experimental module, an electrical experimental module, a mechanics experimental module, a thermal experimental module, a kinematics experimental module and a signal experimental module, an experimental panel of each experimental module comprises seven selection boards, namely an experimental name, an experimental purpose, an experimental principle, an experimental step, an experimental result, an experimental conclusion and a consolidation exercise, a user learns knowledge through the experimental purpose, the experimental principle and the experimental step, performs operation simulation experiment operation on the experimental result and obtains experimental data, then analyzes and processes the generated experimental data to obtain the experimental conclusion, and finally consolidates and exercises the experimental knowledge on the consolidation exercise selection board; the acoustic experiment module comprises three middle school physical experiments, sound velocity simulation under different media, and sound velocity measurement experiments by a standing wave method and a phase method; the optical experiment module comprises a light reflection experiment; the electrical experiment module comprises a sliding circuit experiment and two physical electrical experiments for measuring the resistance by an internal and external connection method; the mechanical experiment module comprises a system for measuring the stiffness of the spring by a static stretching method and a system for measuring the accuracy coefficient of the spring by a dynamic resonance method.
5. A method of operating the labview-based middle school physics experimentation system according to claim 4, comprising the steps of:
the method comprises the following steps: through a system login module, a user inputs information and logs in;
step two: after logging in, the system jumps to an experiment selection module, and a user selects seven experiment parts or log-out parts according to the requirement;
step three: entering an experiment module, browsing experiment names, experiment purposes, experiment principles, experiment steps, experiment results and experiment conclusion knowledge by a user, operating the experiment module according to an experiment operation flow and generating corresponding data;
step four: the user analyzes and processes the data generated by the experiment module, and summarizes and concludes the experiment conclusion;
step five: the user can practice and consolidate knowledge by consolidating the practice selection board.
6. The method of operating a labview-based middle school physics experimental system according to claim 5, wherein: in the first step, a user logs in the system after correctly inputting login information in the letter string input in the front panel of the experiment login module and selects login identity, and the system displays corresponding login information in the character string display frame, then automatically jumps to the experiment selection module and closes a login module window.
7. The method of operating a labview-based middle school physics experimental system according to claim 5, wherein: in the second step, a user enters an experiment selection module after logging in, an experiment to be performed is selected in the module, the experiment content covers seven aspects of sound, light, electricity, force, heat, signals and movement in physics, eight Boolean keys are arranged on a front panel of the experiment selection module, the seven Boolean keys respectively correspond to the physical experiments of the seven doors, the other Boolean key is a return login Boolean key, and each Boolean key is pressed down to correspondingly execute corresponding experiment opening; after clicking, the system realizes skipping and simultaneously closes the interface window of the experiment selection module.
8. The method of operating a labview-based middle school physics experimental system according to claim 5, wherein: in the third step, the user jumps to the experiment module after selecting the experiment, the experiment purpose, the experiment principle and the experiment steps are learned in the experiment module, then the experiment operation interface is used for carrying out experiment operation, the experiment related parameters are synchronously obtained, in the experiment operation part, part of the experiment is composed of Flash calling and labview control operation, and the experiment operation learning is carried out by combining the use.
9. The method of operating a labview-based middle school physics experimental system according to claim 5, wherein: in the fourth step, after the experiment operation is performed, the user can synchronously acquire data in a continuous operation state, acquire a plurality of groups of experiment data by adjusting the control and changing the input parameters, and summarize the acquired experiment data to obtain an experiment conclusion.
10. The method of operating a labview-based middle school physics experimental system according to claim 5, wherein: in the fifth step, the experimenter enters a consolidated practice selection board to check the experimental knowledge after acquiring the experimental conclusion, the system judges the experimental learning condition of the user through the selection of two typical questions, the user answers the questions by clicking the Boolean controls of corresponding options, and whether the corresponding lamp is lighted or not is determined according to the correctness of the answers.
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