CN109377792A - A kind of restructural physics facility and its experimental method - Google Patents
A kind of restructural physics facility and its experimental method Download PDFInfo
- Publication number
- CN109377792A CN109377792A CN201811559891.9A CN201811559891A CN109377792A CN 109377792 A CN109377792 A CN 109377792A CN 201811559891 A CN201811559891 A CN 201811559891A CN 109377792 A CN109377792 A CN 109377792A
- Authority
- CN
- China
- Prior art keywords
- sensor
- data
- experiment
- experimental
- experimental provision
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B5/00—Electrically-operated educational appliances
- G09B5/02—Electrically-operated educational appliances with visual presentation of the material to be studied, e.g. using film strip
Landscapes
- Engineering & Computer Science (AREA)
- Business, Economics & Management (AREA)
- Physics & Mathematics (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a kind of restructural physics facilities and its experimental method.Including multiple sensors, data interface unit, computer, electromechanical units and experimental provision component, sensor feeds back its data acquired to computer by data interface unit, and the electromechanical units and experimental provision component are combined into kinds of experiments mechanism.The present invention can be freely combined and build experimental provision required by experiment purpose, and need to carry out dynamic configuration according to it, by the reconstruct to experimental provision, facilitate the manipulative ability and innovative thinking of cultivating and activate student.Data-interface and electromechanical units are based on modern electronic technology, and the precise measurement and control to experimentation may be implemented；Since student needed in the entire experiment process building device, obtains experimental data by writing experiment flow, New technical use ability can be improved, better understand and grasp experimental method and physics law.
Description
Technical field
The present invention relates to Physical Experiment fields, and in particular to a kind of restructural physics facility and its experimental method.
Background technique
Physics is an experimental science, and Physical Experiment plays very important effect in physics teaching.Student can be with
Physical concept and rule are better understood by Physical Experiment.What the Fundamental Physics Experiments of major part colleges and universities were equipped at present is one
The laboratory apparatus of formula, this quasi-instrument integrate experimental provision and test instrumentation, are made into experimental box or Special experimental instrument.It is real
When testing, student, which often only needs to operate several buttons, can be obtained experimental data.This quasi-instrument is although easy to operate, still " stupid
The operation of melon formula " inhibits the manipulative ability and innovative thinking of student.
Summary of the invention
The purpose of the present invention is in view of the deficienciess of the prior art, provide a kind of restructural physics facility and its
Experimental method can freely assemble experimental provision by student, realize customized process design, student is made preferably to participate in experiment
In, excitation student is creative.
To achieve the above object, in a first aspect, the present invention provides a kind of restructural physics facility, including it is more
A sensor, data interface unit, computer, electromechanical units and experimental provision component；Sensor by data interface unit to
Computer feeds back the data of its acquisition, and the electromechanical units and experimental provision component are combined into kinds of experiments mechanism, the meter
Calculation machine needs to set customized experiment flow according to experiment, to control electromechanical units work, and by the sensor, data-interface
Unit and the experiment mechanism are built into required experimental facilities.
Further, the data interface unit includes analog signal interface and digital signal interface,.
Further, the multiple sensor includes the force snesor connecting with analog signal interface unit, temperature sensing
Device, humidity sensor, pressure transducer, extensometer, magnetic field sensor, sound transducer and imaging sensor, the multiple biography
Sensor further includes the optoelectronic switch sensor and photoelectric encoder connecting with digital signal interface unit.
Further, the electromechanical units include power supply, it is the motor containing driver, heater, fan, turntable, straight
Line slide unit and light source.
Further, the experimental provision component includes metallic rod, bridge, joint element for bar, bottom plate, sliding rail, fixture, installation
Ring and pitch adapter.
Further, the motor includes stepper motor and direct current generator, and the driver includes microcontroller and electricity
Machine driving chip carries out positive and negative rotation control, speed regulating control and customized speed curves to the motor and controls.
Further, the heater includes uniform heat conduction layer and solid-state heating rod, and it is connect by the digital signal
Mouth is connect with computer, to form program-controlled heating device.
In second aspect, the present invention also provides a kind of experimental methods of physics facility, comprising the following steps:
Step 1: according to experiment purpose and measured physical quantity independently select sensor, data interface unit, electromechanical units and
Experimental provision component, to build experimental provision corresponding with experiment purpose and measured physical quantity；
Step 2: data-interface and sensor and computer are separately connected, according to have connected the type of component, sequence number,
Dynamic link library entrance, configuration data table information and generating device list include the operation of equipment in the list of devices；
Step 3: customized experiment flow is designed, to access and control the sensor and electromechanical units；
Step 4: customized experiment flow is executed, the computer obtains the real time data of sensor and electromechanical units, and
It will calculate and processing result feed back to electromechanical units, by driving and controlling electromechanical units work, to obtain final experiment number
According to；
Step 5: laboratory report is completed according to experimental data.
Step 6: the experimental provision is removed or reconstructed new experimental provision.
Further, the customized experiment flow is designed by way of writing code or editing process figure.
Further, the flow chart is tree structure flow chart, and editing process includes defining the tree structure stream
Nodal operation and node related data in journey figure；When executing customized experiment flow, the tree structure flow chart is traversed
Each node, and execute the corresponding operation of node；If the node has child node, operated for Row control；If described
Node does not have child node, then is the operation of the equipment.
The utility model has the advantages that the present invention can be freely combined and build experimental provision required by experiment purpose, and needed according to it
Dynamic configuration is carried out, by the reconstruct to experimental provision, facilitates the manipulative ability and innovative thinking of cultivating and activate student.
Data-interface and electromechanical units are based on modern electronic technology, and the precise measurement and control to experimentation may be implemented；Student exists
It is needed in whole experiment process since building device, obtains experimental data by writing experiment flow, new technology can be improved
Application power better understands and grasps experimental method and physics law.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the restructural physics facility of the embodiment of the present invention；
Fig. 2 is the experimental method flow chart of the restructural physics facility of the embodiment of the present invention；
Fig. 3 is the structural schematic diagram for the experimental provision of the embodiment of the present invention built.
Specific embodiment
In the following with reference to the drawings and specific embodiments, the present invention is furture elucidated, and the present embodiment is with technical solution of the present invention
Premised under implemented, it should be understood that these examples are only for illustrating the present invention and are not intended to limit the scope of the present invention.
As shown in Figure 1, the device includes multiple biographies the embodiment of the invention provides a kind of restructural physics facility
Sensor 1, data interface unit 2, computer 3, electromechanical units 4 and experimental provision component 5.User needs to select phase according to experiment
The sensor answered, and the sensor of selection is connect with data interface unit 2, data interface unit 2 by the signal of sensor into
Row processing, data interface unit 2 connect with computer 3, connect preferably through USB interface with computer 3.Data interface unit
2 are based on microcontroller, field programmable gate array (FPGA), A/D conversion chip, D/A conversion chip and integrated operational amplifier
Realize the acquisition of voltage and current signals, the generation and output, digital signal input and output and relay of customized voltage waveform
Device interface.Data interface unit 2 simultaneously will treated that signal is sent to computer 3.It, can be by user voluntarily according to experiment needs
The electromechanical units 4 needed and experimental provision component 5 are selected, to be combined into the experiment mechanism of needs, composable experiment mechanism has
It is a variety of.Computer 3 is connect with electromechanical units 4, and computer 3 needs to set customized experiment flow according to experiment, to control electromechanics
Unit 4 works, and sensor, data interface unit 2 and experiment mechanism are built into required experimental facilities in turn by computer 3.
The data interface unit 2 of the embodiment of the present invention includes analog signal interface and digital signal interface, and analog signal connects
Mouth is divided into precision analog signaling interface and high speed analog signal interface, can be believed sensor access precision analog according to experiment demand
Number interface or high speed analog signal interface.Analog signal interface and digital signal interface are the prior art, it is based on micro-control
Device processed, field programmable gate array, A/D conversion chip, D/A conversion chip realize the acquisition, customized of voltage and current signals
The generation and output of voltage waveform, digital signal input and output and relay interface.
Multiple sensors include the force snesor being connect with analog signal interface unit, temperature sensor, humidity sensor,
Pressure transducer, extensometer, magnetic field sensor, sound transducer and imaging sensor etc., multiple sensors further include and number
Optoelectronic switch sensor and photoelectric encoder of signal interface unit connection etc..Electromechanical units 4 include power supply, the electricity containing driver
Motivation, heater, fan, turntable, straight line slide unit and light source etc..Wherein, power supply is connect by USB interface with computer 3, electricity
Source is the prior art, it is made of microcontroller, A/D chip, D/A chip, high-power FET, operational amplifier, is realized
The programmable output of DC voltage and electric current.Motor includes stepper motor and direct current generator, and driver is the prior art, it is wrapped
Microcontroller and motor drive ic are included, positive and negative rotation control, speed regulating control and customized speed curves can be carried out to motor
Control.Heater includes uniform heat conduction layer and solid-state heating rod, and it is connect by digital signal interface with computer 3, with group
At program-controlled heating device.Experimental provision component 5 include metallic rod, bridge, joint element for bar, bottom plate, sliding rail, fixture, mounting ring and
Away from adapter.It can also be needed according to actual experiment to the sensor and experimental part that needs are added.
Based on above embodiments, as shown in Fig. 2, the present invention also provides a kind of physical experimental methods, comprising the following steps:
Step 1: according to experiment purpose and measured physical quantity independently select sensor, data interface unit, electromechanical units and
Experimental provision component, to build experimental provision corresponding with experiment purpose and measured physical quantity.
Step 2: data-interface and sensor and computer are separately connected, according to have connected the type of component, sequence number,
Dynamic link library entrance, configuration data table information and generating device list include the operation of equipment in the list of devices.
Step 3: customized experiment flow is designed, to access and control the sensor and electromechanical units.Customized experiment
Process is designed by way of writing code or editing process figure.Wherein flow chart is tree structure flow chart, including three
Kind basic program structure: sequence, judgement and circulation.Its editing process include define nodal operation in tree-like structure flow chart and
Node related data；When executing customized experiment flow, each node of the tree structure flow chart is traversed, and executes node
Corresponding operation；If node has child node, operated for Row control；If node does not have child node, for equipment
Operation.
Step 4: customized experiment flow is executed, the computer obtains the real time data of sensor and electromechanical units, and
It will calculate and processing result feed back to electromechanical units, by driving and controlling electromechanical units work, to obtain final experiment number
According to.
Step 5: laboratory report is completed according to experimental data.
Step 6: new experimental provision is removed or reconstructed to experimental provision.
Application Example: by taking " measurement of wire Young's modulus " experiment as an example, illustrate the preferred of the physical experimental method
Embodiment, experimental procedure are as follows:
This experiment needs elongation when size and wire stress for wire institute stress of the Main physical amount that measures；
1) general load cell is connect with wire, builds experimental provision.
2) select precision analog signaling interface as the data acquisition equipment of load cell.
3) select the motor containing driver as metal wire tension loading equipemtn.
4) selection imaging sensor is with the elongation of the method measurement wire of Digital Image Processing.The experiment dress put up
It sets as shown in Figure 3, wherein 11 be the metallic rod in experimental provision component in figure, and 12 be experimental subjects wire, and 13 pass for image
Sensor, 14 be tension sensor, and 15 be the turntable in electromechanical units, and 16 be the chassis in experimental provision component.
5) system reads the list of configuration data table generating device, the basic operation including equipment, example according to connected device
Such as: read port voltage value, driving motor rotate angle.
6) user edits customized tree structure flow chart, including defining the node behaviour in the tree structure flow chart
Make and node related data；Tree structure flow chart includes three kinds of basic program structures: sequence, judgement and circulation.Customized tree
Shape structure flow chart is, realization and code independent programming abstract to program code.In the present embodiment, user's addition
Node are as follows:
Initialization data interface equipment
Initialize motor
Loop structure: circulation n times
■ motor rotational angle sets (t degree)
The analog voltage of ■ acquisition Data interface channels 1 and channel 2
■ analyzes digital picture, obtains wire elongation amount
7) each node of system traversal tree structure flow chart, and execute the corresponding operation of node；If node has son
Node is then used for Row control.It is then very to execute its child node afterwards in Rule of judgment if structure is judged according to nodal community
Operation；If loop structure (the present embodiment), then child node is operated and execute predetermined number of times；If the node does not have son section
Point is then the operation of the equipment in step 4), is directly executed.
8) after all nodes have executed, Flow ends, system stores the data file of generation, for handling and analyzing.
By this experimental provision and experimental method, measurement, inertia balance experiment, the collision of also achievable Solid thermal conductivity are beaten
The Physical Experiments such as target experiment, the measurement of liquid surface tension coefficient and the measurement of radius of even convex lens, no longer repeat one by one.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, other parts not specifically described belong to the prior art or common knowledge.In the premise for not departing from the principle of the invention
Under, several improvements and modifications can also be made, these modifications and embellishments should also be considered as the scope of protection of the present invention.
Claims (10)
1. a kind of restructural physics facility, which is characterized in that including multiple sensors, data interface unit, computer,
Electromechanical units and experimental provision component；Sensor feeds back its data acquired, the machine to computer by data interface unit
Electric unit and experimental provision component are combined into kinds of experiments mechanism, and the computer needs to set customized experiment according to experiment
Process to control electromechanical units work, and the sensor, data interface unit and the experiment mechanism is built into required
Experimental facilities.
2. restructural physics facility according to claim 1, which is characterized in that the data interface unit includes
Analog signal interface and digital signal interface.
3. restructural physics facility according to claim 2, which is characterized in that the multiple sensor include with
The force snesor of analog signal interface unit connection, temperature sensor, humidity sensor, pressure transducer, extensometer, magnetic field pass
Sensor, sound transducer and imaging sensor, the multiple sensor further include the photoelectricity connecting with digital signal interface unit
Switch sensor and photoelectric encoder.
4. restructural physics facility according to claim 2, which is characterized in that the electromechanical units include electricity
Source, the motor containing driver, heater, fan, turntable, straight line slide unit and light source.
5. restructural physics facility according to claim 1, which is characterized in that the experimental provision component includes
Metallic rod, bridge, joint element for bar, bottom plate, sliding rail, fixture, mounting ring and pitch adapter.
6. restructural physics facility according to claim 4, which is characterized in that the motor includes stepping electricity
Machine and direct current generator, the driver include microcontroller and motor drive ic, to the motor carry out positive and negative rotation control,
Speed regulating control and the control of customized speed curves.
7. restructural physics facility according to claim 4, which is characterized in that the heater includes uniformly leading
Thermosphere and solid-state heating rod, and it is connect by the digital signal interface with computer, to form program-controlled heating device.
8. a kind of experimental method of physics facility as described in claim 1, which comprises the following steps:
Step 1: sensor, data interface unit, electromechanical units and experiment are independently selected according to experiment purpose and measured physical quantity
Device assembly, to build experimental provision corresponding with experiment purpose and measured physical quantity；
Step 2: data-interface and sensor and computer being separately connected, according to type, sequence number, the dynamic for having connected component
Chained library entrance, configuration data table information and generating device list include the operation of equipment in the list of devices；
Step 3: customized experiment flow is designed, to access and control the sensor and electromechanical units；
Step 4: executing customized experiment flow, the computer obtains the real time data of sensor and electromechanical units, and will meter
It calculates and processing result feeds back to electromechanical units, by driving and controlling electromechanical units work, to obtain final experimental data；
Step 5: laboratory report is completed according to experimental data.
Step 6: the experimental provision is removed or reconstructed new experimental provision.
9. the experimental method of physics facility according to claim 8, which is characterized in that the customized experiment flow
It is designed by way of writing code or editing process figure.
10. the experimental method of physics facility according to claim 9, which is characterized in that the flow chart is tree-like
Structure flow chart, editing process include the nodal operation and node related data defined in the tree structure flow chart；It holds
When the customized experiment flow of row, each node of the tree structure flow chart is traversed, and execute the corresponding operation of node；If institute
Node is stated with child node, then is operated for Row control；If the node does not have child node, for the behaviour of the equipment
Make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811559891.9A CN109377792A (en) | 2018-12-20 | 2018-12-20 | A kind of restructural physics facility and its experimental method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811559891.9A CN109377792A (en) | 2018-12-20 | 2018-12-20 | A kind of restructural physics facility and its experimental method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109377792A true CN109377792A (en) | 2019-02-22 |
Family
ID=65370969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811559891.9A Pending CN109377792A (en) | 2018-12-20 | 2018-12-20 | A kind of restructural physics facility and its experimental method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109377792A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113178117A (en) * | 2021-04-30 | 2021-07-27 | 衡阳师范学院 | Inertia balance device for college physics experiments |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201655080U (en) * | 2010-04-20 | 2010-11-24 | 同济大学 | Embedded extensible teaching experimental platform equipment |
| CN202274983U (en) * | 2011-10-21 | 2012-06-13 | 西南交通大学 | Reconfigurable lead screw pair and guide rail pair service life acceleration electro-hydraulic servo test device |
| CN102519518A (en) * | 2011-12-29 | 2012-06-27 | 浙江大学台州研究院 | Reconfiguration method of reconfigurable mechanical test system for mechanical parts |
| CN202549133U (en) * | 2012-04-20 | 2012-11-21 | 北京广达汽车维修设备有限公司 | Modular electronic and electrical integrated experimental system |
| CN103150952A (en) * | 2013-03-12 | 2013-06-12 | 广西生态工程职业技术学院 | Reconfigurable electronic design automation (EDA) experimental platform |
| CN104821123A (en) * | 2015-03-12 | 2015-08-05 | 中南民族大学 | Medical electronic integrated test system |
| CN104977244A (en) * | 2015-07-09 | 2015-10-14 | 中国矿业大学 | Reconfigurable modular environmental test chamber |
| CN205016121U (en) * | 2015-07-24 | 2016-02-03 | 武汉世纪传承科技有限公司 | Open sensor teaching experiment case |
-
2018
- 2018-12-20 CN CN201811559891.9A patent/CN109377792A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201655080U (en) * | 2010-04-20 | 2010-11-24 | 同济大学 | Embedded extensible teaching experimental platform equipment |
| CN202274983U (en) * | 2011-10-21 | 2012-06-13 | 西南交通大学 | Reconfigurable lead screw pair and guide rail pair service life acceleration electro-hydraulic servo test device |
| CN102519518A (en) * | 2011-12-29 | 2012-06-27 | 浙江大学台州研究院 | Reconfiguration method of reconfigurable mechanical test system for mechanical parts |
| CN202549133U (en) * | 2012-04-20 | 2012-11-21 | 北京广达汽车维修设备有限公司 | Modular electronic and electrical integrated experimental system |
| CN103150952A (en) * | 2013-03-12 | 2013-06-12 | 广西生态工程职业技术学院 | Reconfigurable electronic design automation (EDA) experimental platform |
| CN104821123A (en) * | 2015-03-12 | 2015-08-05 | 中南民族大学 | Medical electronic integrated test system |
| CN104977244A (en) * | 2015-07-09 | 2015-10-14 | 中国矿业大学 | Reconfigurable modular environmental test chamber |
| CN205016121U (en) * | 2015-07-24 | 2016-02-03 | 武汉世纪传承科技有限公司 | Open sensor teaching experiment case |
Non-Patent Citations (1)
| Title |
|---|
| 陈勇等: "可重构、多维机电实验系统的研究与探讨", 《机电工程》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113178117A (en) * | 2021-04-30 | 2021-07-27 | 衡阳师范学院 | Inertia balance device for college physics experiments |
| CN113178117B (en) * | 2021-04-30 | 2023-11-14 | 衡阳师范学院 | Inertial scale device for university physics experiments |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101334457B (en) | Multichannel multi-parameter electric measuring meter test system and full-automatic test method | |
| CN101017623B (en) | An experimental instrument and method for automatic control principle | |
| Axtmann et al. | A custom, high-performance real time measurement and control system for arbitrary power electronic systems in academic research and education | |
| CN109377792A (en) | A kind of restructural physics facility and its experimental method | |
| Gavran et al. | PI controller for DC motor speed realized with Arduino and Simulink | |
| Takács et al. | MagnetoShield: Prototype of a low-cost magnetic levitation device for control education | |
| Becker et al. | Miniaturized six-degree-of-freedom force/moment transducers for instrumented teeth with single sensor chip | |
| CN104571094B (en) | Detection device for engine oil control system | |
| CN104034378A (en) | Constant-current thermal gas mass flow meter and measuring method implemented by same | |
| CN102830629A (en) | Testing device and method of power electronic control system | |
| CN104464485B (en) | Robot teaching's Control testing bench method | |
| CN106329912A (en) | Auxiliary power supply circuit | |
| CN201281755Y (en) | Assay system for multichannel multi-parameter electric measuring meter | |
| CN103528706A (en) | Automatic test system for heat treatment furnace temperature uniformity | |
| CN208637020U (en) | Industry spot sensor test application actual training device | |
| CN116155143A (en) | Method and device for acquiring motor parameters | |
| CN208296948U (en) | A kind of volume correction instrument comprehensive performance verifying attachment | |
| CN206099924U (en) | Sawtooth wave produces circuit | |
| CN109405730A (en) | A kind of physical synthesis characteristic test device of filamentary material | |
| CN110531295A (en) | A kind of automation control method of high power DC standard resistance box | |
| CN103337207A (en) | Optics-mechanics-electronics interdisciplinary experiment teaching equipment and experimental method | |
| CN1804949B (en) | Integrated photoelectrical experiment and test method | |
| Cross et al. | A drives and machines teaching laboratory using industrial drives | |
| Van Damme | DESIGN AND IMPLEMENTATION OF AN MRI-COMPATIBLE MOTOR TEST STAND | |
| CN108520122B (en) | Modeling method and circuit model based on Spice cross-shaped Hall simulation model |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190222 |
|
| RJ01 | Rejection of invention patent application after publication |