CN207799974U - A kind of acceleration of gravity physics facility - Google Patents
A kind of acceleration of gravity physics facility Download PDFInfo
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- CN207799974U CN207799974U CN201820000305.6U CN201820000305U CN207799974U CN 207799974 U CN207799974 U CN 207799974U CN 201820000305 U CN201820000305 U CN 201820000305U CN 207799974 U CN207799974 U CN 207799974U
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- object block
- acceleration
- gravity
- lowering mechanism
- transparent housing
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Abstract
The utility model discloses a kind of acceleration of gravity physics facility, which includes simulator pedestal, the first object block lowering mechanism, the second object block lowering mechanism；It is single that the utility model solves existing same type experimental facilities usage, cannot carry out gravity experiment to more object blocks simultaneously, can not effectively be used, lack comparative problem；When implementing after improvement, object block dropping process can be easily simulated, and obtain corresponding data, the acceleration of gravity of object block is obtained by calculating；The experimental provision is easy to operate quickly, can shorten the experimental period of test acceleration of gravity, reduce the human error during cycloid linear measure longimetry, to improve the accuracy of measured gravity acceleration value；On the other hand, the experimental simulation device is relatively more intuitive in operation.
Description
Technical field
The utility model is related to physical simulation experiment equipment, are especially a kind of acceleration of gravity physics facility.
Background technology
Currently, measuring acceleration of gravity using single pendulum mostly in physics experiment teaching；However for freely falling body reality
It tests, experiment with simple pendulum is necessary experimental courses in physics subject；And freedom is used in most of physics teaching now
Falling bodies-get the experimental method of counter ready, and the error of the method is larger, are not easy to carry out to student in teaching process intuitive real
Test displaying.
It is found by retrieval, the utility model of patent No. CN201521105077.1 discloses a kind of acceleration of gravity experiment
The upper middle position of equipment, including I-shaped device, I-shaped device is equipped with trepanning, and trepanning is equipped with block, is put on block
Have a sphere, the inside of the first groove is respectively equipped with the first RF transmitter and the first infrared receiver, the second groove it is interior
Portion is respectively equipped with the second RF transmitter and the second infrared receiver, and the top left side of I-shaped device is respectively equipped with first
The right side of signal receiver, controller and timer, holder is equipped with second signal receiver, and first infrared receiver is logical
It crosses the first signal receiver to be electrically connected with the controller, the second infrared receiver is electrically connected by second signal receiver with controller
It connects, the controller is electrically connected with timer, and position corresponding with trepanning is equipped with groove among the lower part of I-shaped device, described
Buffer body is equipped in groove, the lower part of I-shaped device is additionally provided with the accumulator group for power supply.
The utility model of patent No. CN201220332827.9 discloses a kind of acceleration of gravity experimental provision and system.Weight
Power acceleration test device, including：Supporting rack, fastener, microswitch, power switch, timer and pedestal；The support
Frame, microswitch, power switch and timer are respectively provided on the base；Wherein, the short transverse and water of support frame as described above
Plane is vertical；The fastener is arranged on support frame as described above；The power switch respectively with the fastener and the timing
Device connects；The microswitch is arranged in the underface of the fastener, and is connect with the timer.
The utility model of patent No. CN201120045146.X discloses a kind of gravity acceleration experimental instrument, including supporting rack
And swing ball；Swing ball at 20 degree to 40 degree of two cycloids by being suspended on the cross bar above supporting rack.The support
Frame further includes lifting column and pedestal；The motion bar that lifting column includes casing, is placed in casing on casing for adjusting
And the locking knob of motion bar is locked, the bottom of described sleeve pipe is fixed on the base；The cross bar is fixed on the upper of motion bar
Portion.The motion bar of lifting column is equipped with the graduated scale for measuring pendulum length.
In addition, for existing common acceleration of gravity physics facility, nearly all have the following disadvantages：
First, existing Physical Experiment equipment usage is single, for example only has single object block by gravity fall, it cannot be simultaneously to more object blocks
Gravity experiment is carried out, can not be effectively used, is lacked comparative；Second, being filled for existing physical gravity acceleration test
For setting, usually operated in laboratory, it is hot in laboratory when summer therefore can sometimes open fan, then object block is by weight
When power falls, lack necessary protection, sometimes object block is easily influenced by outer gas stream or wind；Third, for existing physics weight
For power acceleration test device, when object block is after by gravity fall, shortage is to object block automatic absorbing to function in situ；Its
Four, for existing physical gravity acceleration test device overall structure, quite a few apparatus structure is excessively complicated, it appears
Whole device volume is big, will certainly influence the operation and observation of student in an experiment；Therefore it needs to be improved.
Utility model content
Therefore, the existing Physical Experiment equipment usage of the utility model solution is single, cannot carry out weight to more object blocks simultaneously
Power is tested, and can not be effectively used, be lacked comparative problem；A kind of acceleration of gravity Physical Experiment dress is provided herein
It sets；When implementing after improvement, object block dropping process can be easily simulated, and obtain corresponding data, object block is obtained by calculating
Acceleration of gravity；The experimental provision is easy to operate quickly, can shorten the experimental period of test acceleration of gravity, reduce pendulum
Human error in line length measurement process, to improve the accuracy of measured gravity acceleration value；On the other hand, should
Experimental simulation device is relatively more intuitive in operation.
The utility model is realized in this way constructing a kind of acceleration of gravity physics facility, which includes simulation
Device pedestal, the first object block lowering mechanism, the second object block lowering mechanism；First object block lowering mechanism and the second object block lowering mechanism
It is respectively placed on simulator pedestal and the two is realized using identical mechanism, specifically include rotary electric machine, rotary screw rod, lead screw
Sleeve, electromagnet assembly, electromagnet assembly holder, transparent housing, supporting rod, the first monitoring assembly, the second monitoring assembly, third
Monitoring assembly, buffer body and pressure sensor；The turning end of the rotary electric machine is connect with rotary screw rod, rotary electric machine and rotation
The side for being integrally located at transparent housing of lead screw composition, the both sides of transparent housing have the vertical chute A and the vertical chute B,
Electromagnet assembly is connected by electromagnet assembly holder and is supported on rotary screw rod by lead screw sleeve, electromagnet assembly holder
Its electromagnet assembly is set to be located in transparent housing across the vertical chute B；First monitoring assembly, the second monitoring assembly, third monitoring
Component is corresponded to by supporting rod in the vertical chute A respectively, and the inside bottom of transparent housing is provided with buffer body and pressure sensing
Device.
The utility model have the advantages that after improving following improvement and：
Advantage 1：Simulator pedestal is used to support and carries the first object block lowering mechanism, the second object block lowering mechanism；
When realization, the object block that the first object block lowering mechanism and the second object block lowering mechanism can be different to quality simultaneously carries out under by gravity
It falls；It is single to solve existing Physical Experiment equipment usage, cannot gravity experiment be carried out to more object blocks simultaneously, can not be effectively subject to
It utilizes, lacks comparative problem.
Advantage 2：For the first object block lowering mechanism and the second object block lowering mechanism, the two is real using identical mechanism
It is existing, shown in Fig. 5, specifically include rotary electric machine, rotary screw rod, lead screw sleeve, electromagnet assembly, electromagnet assembly branch
Frame, transparent housing, supporting rod, the first monitoring assembly, the second monitoring assembly, third monitoring assembly, buffer body and pressure sensor；
When operation, first it is powered to electromagnet assembly, makes it to object block（Iron block or iron ball）Adsorption capacity is generated, Preparatory work of experiment work is carried out；
Then electromagnet assembly is powered off, so that it is disappeared object block adsorption capacity, object block is fallen by free gravity at this time, and is being fallen
The first monitoring assembly, the second monitoring assembly, third monitoring assembly can be passed through in journey respectively, by the first monitoring assembly, the second monitoring
Component, third monitoring assembly be respectively induced detect its by when speed and the time, transmit a signal to control device respectively；
Object block can drop down onto buffer body surface, and pressure sensor is incuded at this time, illustrate that the movement of falling object terminates, and by end signal
It is transmitted to control device, obtains the time of end；It falls between first monitoring assembly, the second monitoring assembly, third monitoring assembly
Apart from identical and measurable concrete values, then according to the calculation formula of acceleration of gravity, the whereabouts gravity of object block can be calculated
Acceleration.
The meeting object block different to quality is carried out by gravity fall in first object block lowering mechanism and the second object block lowering mechanism,
It so obtains the time fallen and speed is different, can carry out power acceleration test by comparing in this way.
When primary experiment terminates to be re-started, first start rotary electric machine work, it is made to drive rotary screw rod rotation, from
And the entirety of lead screw sleeve, electromagnet assembly, electromagnet assembly holder is driven to move down, electromagnet assembly holder passes through vertical at this time
Sliding slot B, and so that its electromagnet assembly is located in transparent housing and move downward, when electromagnet assembly touches object on buffer body surface
When block, it is powered to electromagnet assembly, makes it to object block（Iron block or iron ball）Adsorption capacity is generated again, and it is anti-to control rotary electric machine later
To rotation, drives lead screw sleeve, electromagnet assembly, electromagnet assembly holder to move to original position on the whole, carry out the next of object block
Secondary falling.
Generally round for transparent housing, both sides have the vertical chute A and the vertical chute B, vertical sliding
Slot A is in order to corresponding with three groups of monitoring assemblies, and the vertical chute B is moved for the ease of electromagnet assembly holder.
Advantage 3：Pressure sensor is wrapped in interior by buffer body in the utility model, and buffer body has concave surface；It is good
Place is to carry out package protection to pressure sensor by buffer body, prevent object block from causing stress the damage of sensor because of whereabouts；Together
When, there is buffer body concave surface, concave surface can ensure that object block is located at the middle part stop on buffer body surface, be convenient for electromagnet
Component adsorbs again.
Advantage 4：The utility model further includes transparent windproof outer cover；Transparent windproof outer cover is by the first object block lowering mechanism
It is integrally covered with the second object block lowering mechanism；In experiment, transparent windproof outer cover can object block by outer gas stream or wind
It influences.
Advantage 5：When implementing, windproof outer cover is plastic part；When implementing, simulator pedestal is plastic part；This
Sample can mitigate the weight of whole device.
Advantage 6：In first object block lowering mechanism and the second object block lowering mechanism, the vertical chute A in transparent housing and perpendicular
It is respectively smaller than the width of corresponding iron block to the width of sliding slot B, can prevent object block from sliding out transparent housing in this way.
Advantage 7：Windproof outer cover slot, rotary electric machine card slot, transparent outer is also respectively symmetrically provided on simulator pedestal
Cover slot and supporting rod slot；So for the present apparatus in assembling, windproof outer cover, rotary electric machine, transparent housing and supporting rod can be straight
It connects and sticks into windproof outer cover slot, rotary electric machine card slot, transparent housing slot and supporting rod slot, its each component is made not only to realize
Connection between simulator pedestal, and also allow for being fixed to each other.
Description of the drawings
Fig. 1 is 1 corresponding schematic diagram of the utility model embodiment（Before object block falls）；
Fig. 2 is 1 corresponding schematic diagram of the utility model embodiment（Fall behind under object block）；
Fig. 3 is 2 corresponding schematic diagram of the utility model embodiment（Before object block falls）；
Fig. 4 is 2 corresponding simulator base schematic diagram of the utility model embodiment；
Fig. 5 is the corresponding schematic diagram of object block lowering mechanism in the utility model；
Fig. 6 is the transparent housing schematic diagram involved in the utility model.
Wherein：Simulator pedestal 1, the first object block lowering mechanism 2, the second object block lowering mechanism 3, rotary electric machine 4, rotation
Lead screw 5, lead screw sleeve 6, electromagnet assembly 7, electromagnet assembly holder 8, transparent housing 9, supporting rod 10, the first monitoring assembly
11, the second monitoring assembly 12, third monitoring assembly 13, buffer body 14, pressure sensor 15, the vertical chute A16, the vertical chute
B17, object block 18, concave surface 19, windproof outer cover 20, windproof outer cover slot 21, rotary electric machine card slot 22, transparent housing slot
23, supporting rod slot 24.
Specific implementation mode
The utility model is described in detail below in conjunction with attached drawing 1- Fig. 6, to the skill in the utility model embodiment
Art scheme is clearly and completely described, it is clear that and the described embodiments are only a part of the embodiments of the utility model, and
The embodiment being not all of.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creativeness
The every other embodiment obtained under the premise of labour, shall fall within the protection scope of the present invention.
A kind of acceleration of gravity physics facility, as shown in figs 1 to 6, the first object block lowering mechanism 2 and the second object block
Lowering mechanism 3 is respectively placed on simulator pedestal 1 and the two is realized using identical mechanism, is specifically included rotary electric machine 4, is turned
Dynamic lead screw 5, lead screw sleeve 6, electromagnet assembly 7, electromagnet assembly holder 8, transparent housing 9, supporting rod 10, the first monitoring assembly
11, the second monitoring assembly 12, third monitoring assembly 13, buffer body 14 and pressure sensor 15.The turning end of the rotary electric machine 4
It is connect with rotary screw rod 5, the side for being integrally located at transparent housing 9 that rotary electric machine 4 and rotary screw rod 5 form, transparent housing 9
Both sides have the vertical chute A16 and the vertical chute B17, and electromagnet assembly 7 is connected and passed through by electromagnet assembly holder 8
Lead screw sleeve 6 is supported on rotary screw rod 5, and electromagnet assembly holder 8 passes through the vertical chute B17 that its electromagnet assembly 7 is made to be located at
In transparent housing 9；First monitoring assembly 11, the second monitoring assembly 12, third monitoring assembly 13 are corresponded to by supporting rod 10 respectively
In in the vertical chute A16, the inside bottom of transparent housing 9 is provided with buffer body 14 and pressure sensor 15.
First, which includes simulator pedestal 1, the first object block lowering mechanism 2, the second object block lowering mechanism 3；Simulation
Device pedestal 1 is used to support and carries the first object block lowering mechanism 2, the second object block lowering mechanism 3；When realizing, the first object block
Lowering mechanism 2 and the second object block lowering mechanism 3 are understood object blocks different to quality simultaneously and are carried out by gravity fall；Solve existing object
It is single to manage experimental facilities usage, cannot gravity experiment be carried out to more object blocks simultaneously, can not be effectively used, lacked comparative
The problem of.
Secondly, for the first object block lowering mechanism 2 and the second object block lowering mechanism 3, the two uses identical mechanism
It realizes, shown in Fig. 5, specifically includes rotary electric machine 4, rotary screw rod 5, lead screw sleeve 6, electromagnet assembly 7, electromagnet
Assembly support 8, supporting rod 10, the first monitoring assembly 11, the second monitoring assembly 12, third monitoring assembly 13, delays transparent housing 9
Rush body 14 and pressure sensor 15；When operation, first it is powered to electromagnet assembly 7, makes it to object block 18（Iron block or iron ball）It generates
Adsorption capacity carries out Preparatory work of experiment work；Then electromagnet assembly 7 is powered off, so that it is disappeared 18 adsorption capacity of object block, at this time object block
18 are fallen by free gravity, and can pass through the first monitoring assembly 11, the second monitoring assembly 12, third respectively in dropping process
Monitoring assembly 13 is respectively induced by the first monitoring assembly 11, the second monitoring assembly 12, third monitoring assembly 13 and is detected that it passes through
When speed and the time, transmit a signal to control device respectively；Object block 18 can drop down onto 14 surface of buffer body, at this time pressure sensing
Device 15 is incuded, and illustrates that the movement of falling object terminates, and end signal is transmitted to control device, obtains the time of end；
Distance of fall is identical between first monitoring assembly 11, the second monitoring assembly 12, third monitoring assembly 13 and measurable concrete values,
Then according to the calculation formula of acceleration of gravity, the whereabouts acceleration of gravity of object block 18 can be calculated.
The first object block lowering mechanism 2 object block 18 different to quality with meeting in the second object block lowering mechanism 3 is carried out by gravity
Fall, then obtains whereabouts time and speed it is different, can carry out power acceleration test by comparing in this way.
When primary experiment terminates to be re-started, first starts rotary electric machine 4 and works, make it that rotary screw rod 5 be driven to rotate,
To drive the entirety of lead screw sleeve 6, electromagnet assembly 7, electromagnet assembly holder 8 to move down, electromagnet assembly holder 8 is worn at this time
The vertical chute B17 is crossed, and so that its electromagnet assembly 7 is located in transparent housing 9 and moves downward, when electromagnet assembly 7 is in buffer body
When 14 surfaces touch object block 18, it is powered to electromagnet assembly 7, makes it to object block 18（Iron block or iron ball）Absorption is generated again
Power controls rotary electric machine 4 and rotates backward, drives the entirety of lead screw sleeve 6, electromagnet assembly 7, electromagnet assembly holder 8 later
On move to original position, carry out the falling next time of object block 18.
Generally round for transparent housing 9, both sides have the vertical chute A16 and the vertical chute B17,
The vertical chute A16 is in order to corresponding with three groups of monitoring assemblies, and the vertical chute B17 is moved for the ease of electromagnet assembly holder 8
It is dynamic.
In pressure sensor 15 is wrapped in by the buffer body 14, buffer body 14 has concave surface 19；Its benefit is, by
Buffer body 14 carries out package protection to pressure sensor 15, prevents object block from causing stress the damage of sensor 15 because of whereabouts；Meanwhile
There is buffer body 14 concave surface 19, concave surface 19 can ensure that object block 18 is located at the middle part stop on 14 surface of buffer body, just
It is adsorbed again in electromagnet assembly 7.
Acceleration of gravity physics facility, the device further include transparent windproof outer cover 20；Transparent windproof outer cover 20
First object block lowering mechanism 2 and 3 entirety of the second object block lowering mechanism are covered.In experiment, transparent windproof outer cover 20 can
Object block is influenced by outer gas stream or wind.When implementing, windproof outer cover 20 is plastic part；When implementing, simulator bottom
Seat 1 is plastic part；The weight of whole device can be mitigated in this way.
On the other hand, in the first object block lowering mechanism 2 and the second object block lowering mechanism 3, the vertical chute in transparent housing 9
The width of A16 and the vertical chute B17 are respectively smaller than the width of corresponding iron block 18, can prevent object block 18 from sliding out so transparent outer
Cover 9.
Embodiment 2：As Figure 3-Figure 4, the acceleration of gravity physics facility described in the present embodiment is relative to implementation
Example is compared, and difference is respectively symmetrically to be provided with windproof outer cover slot 21, rotary electric machine card slot 22, thoroughly on simulator pedestal 1
Bright outer cover slot 23 and supporting rod slot 24；So the present apparatus is in assembling, windproof outer cover, rotary electric machine, transparent housing and branch
Strut can be sticked into directly in windproof outer cover slot 21, rotary electric machine card slot 22, transparent housing slot 23 and supporting rod slot 24, be made
Its each component not only realizes the connection between simulator pedestal 1, but also also allows for being fixed to each other.
In conclusion when implementing using the above embodiment, object block dropping process can be easily simulated, and is obtained corresponding
Data, pass through calculating obtain object block acceleration of gravity；The experimental provision is easy to operate quickly, can shorten test gravity and add
The experimental period of speed reduces the human error during cycloid linear measure longimetry, accelerates to improve measured gravity
The accuracy of angle value；On the other hand, the experimental simulation device is relatively more intuitive in operation.
The foregoing description of the disclosed embodiments enables professional and technical personnel in the field to realize or use this practicality new
Type.Various modifications to these embodiments will be apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest range consistent with features of novelty.
Claims (7)
1. a kind of acceleration of gravity physics facility, it is characterised in that：Including simulator pedestal（1）, the first object block fall
Mechanism（2）, the second object block lowering mechanism（3）；
Wherein, the first object block lowering mechanism（2）With the second object block lowering mechanism（3）It is respectively placed in simulator pedestal（1）It is upper and
The two is realized using identical mechanism, specifically includes rotary electric machine（4）, rotary screw rod（5）, lead screw sleeve（6）, electromagnet assembly
（7）, electromagnet assembly holder（8）, transparent housing（9）, supporting rod（10）, the first monitoring assembly（11）, the second monitoring assembly
（12）, third monitoring assembly（13）, buffer body（14）And pressure sensor（15）；
The rotary electric machine（4）Turning end and rotary screw rod（5）Connection, rotary electric machine（4）And rotary screw rod（5）What is formed is whole
Body is located at transparent housing（9）Side, transparent housing（9）Both sides have the vertical chute A（16）With the vertical chute B
（17）, electromagnet assembly（7）Pass through electromagnet assembly holder（8）It connects and passes through lead screw sleeve（6）It is supported on rotary screw rod（5）
On, electromagnet assembly holder（8）Across the vertical chute B（17）Make its electromagnet assembly（7）Positioned at transparent housing（9）It is interior；First
Monitoring assembly（11）, the second monitoring assembly（12）, third monitoring assembly（13）Pass through supporting rod respectively（10）Corresponding to vertical sliding
Slot A（16）It is interior, transparent housing（9）Inside bottom be provided with buffer body（14）And pressure sensor（15）.
2. acceleration of gravity physics facility according to claim 1, it is characterised in that：The buffer body（14）It will pressure
Force snesor（15）In being wrapped in, buffer body（14）With concave surface（19）.
3. acceleration of gravity physics facility according to claim 1, it is characterised in that：The device further includes transparent
Windproof outer cover（20）；Transparent windproof outer cover（20）By the first object block lowering mechanism（2）With the second object block lowering mechanism（3）It is whole
It covers.
4. acceleration of gravity physics facility according to claim 3, it is characterised in that：Windproof outer cover（20）For plastics
Product.
5. acceleration of gravity physics facility according to claim 1, it is characterised in that：Simulator pedestal（1）On
Respectively symmetrically it is provided with windproof outer cover slot（21）, rotary electric machine card slot（22）, transparent housing slot（23）With supporting rod slot
（24）.
6. acceleration of gravity physics facility according to claim 1, it is characterised in that：First object block lowering mechanism
（2）With the second object block lowering mechanism（3）In, transparent housing（9）In the vertical chute A（16）With the vertical chute B（17）Width
It is respectively smaller than corresponding iron block（18）Width.
7. acceleration of gravity physics facility according to claim 1, it is characterised in that：Simulator pedestal（1）For
Plastic part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820000305.6U CN207799974U (en) | 2018-01-01 | 2018-01-01 | A kind of acceleration of gravity physics facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820000305.6U CN207799974U (en) | 2018-01-01 | 2018-01-01 | A kind of acceleration of gravity physics facility |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207799974U true CN207799974U (en) | 2018-08-31 |
Family
ID=63278145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820000305.6U Expired - Fee Related CN207799974U (en) | 2018-01-01 | 2018-01-01 | A kind of acceleration of gravity physics facility |
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| Country | Link |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109389888A (en) * | 2018-11-22 | 2019-02-26 | 栾宇翔 | A kind of improvement structure based on senior middle school physics teaching freely falling body apparatus for demonstrating |
| CN109473018A (en) * | 2018-12-29 | 2019-03-15 | 路依丹 | A kind of high school physics study apparatus for demonstrating |
| CN109545044A (en) * | 2019-01-15 | 2019-03-29 | 白彦 | The experimental rig of a variety of physical models of analog |
| CN109637299A (en) * | 2019-02-01 | 2019-04-16 | 陈晨 | A kind of environmental and durable type physics acceleration test device |
| CN110322761A (en) * | 2019-07-12 | 2019-10-11 | 衡阳师范学院 | A kind of Experiment of College Physics multiple function apparatus device |
| CN111105681A (en) * | 2019-12-31 | 2020-05-05 | 徐州工程学院 | Teaching instrument for measuring gravitational acceleration |
| WO2022166834A1 (en) * | 2021-02-02 | 2022-08-11 | 中国人民解放军国防科技大学 | Remotely controllable gravitational acceleration physical experiment system |
-
2018
- 2018-01-01 CN CN201820000305.6U patent/CN207799974U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109389888A (en) * | 2018-11-22 | 2019-02-26 | 栾宇翔 | A kind of improvement structure based on senior middle school physics teaching freely falling body apparatus for demonstrating |
| CN109473018A (en) * | 2018-12-29 | 2019-03-15 | 路依丹 | A kind of high school physics study apparatus for demonstrating |
| CN109545044A (en) * | 2019-01-15 | 2019-03-29 | 白彦 | The experimental rig of a variety of physical models of analog |
| CN109637299A (en) * | 2019-02-01 | 2019-04-16 | 陈晨 | A kind of environmental and durable type physics acceleration test device |
| CN110322761A (en) * | 2019-07-12 | 2019-10-11 | 衡阳师范学院 | A kind of Experiment of College Physics multiple function apparatus device |
| CN111105681A (en) * | 2019-12-31 | 2020-05-05 | 徐州工程学院 | Teaching instrument for measuring gravitational acceleration |
| WO2022166834A1 (en) * | 2021-02-02 | 2022-08-11 | 中国人民解放军国防科技大学 | Remotely controllable gravitational acceleration physical experiment system |
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