CN110148335A - A kind of high school physics experiment with falling objects simulator - Google Patents
A kind of high school physics experiment with falling objects simulator Download PDFInfo
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- CN110148335A CN110148335A CN201910442563.9A CN201910442563A CN110148335A CN 110148335 A CN110148335 A CN 110148335A CN 201910442563 A CN201910442563 A CN 201910442563A CN 110148335 A CN110148335 A CN 110148335A
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- 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
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/08—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics
- G09B23/10—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics of solid bodies
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Abstract
The invention discloses a kind of high school physics experiment with falling objects simulators, more particularly to physics teaching equipment technical field, including fixed pedestal, balance plate is equipped at the top of the fixed pedestal, two sides are equipped with two symmetrical supporting sliders at the top of the fixed pedestal, slidably connect sliding sleeve on the outside of the supporting slider, two are equipped with and adjust crossbearer between two sliding sleeves, are fixedly connected with that there are two symmetrical mounting plates at the top of the balance plate.The present invention is by adjusting the height for adjusting crossbearer and loading plate, the first experiment cylinder and second is set to test cylinder sliding stretching, lab sphere height of drop is adjusted, vacuum pump pumping makes the first experiment package and the second experiment package inner vacuum, the lab sphere of two different qualities is discharged simultaneously from identical height, carry out experiment with falling objects demonstration, influenced by external force small, experimental result is accurate, reduces experimental error, it is with distinct contrast, convenient for the relationship of observation quality and acceleration.
Description
Technical field
The present invention relates to physics teaching equipment technical fields, it is more particularly related to which a kind of high school physics are free
Falling body experiment simulator.
Background technique
In the teaching process of Middle School Physics, in order to which student more preferably more intuitively understands acceleration information, need to student
The demonstration simulation movement of falling object needs special equipment to be supported in experiment with falling objects, but traditional freely falling body
There are problems for experimental simulation device, and structure is complicated, inconvenient using adjusting, and fixation is not firm enough, and the degree of balance is difficult to be protected
Barrier, causes the accuracy of simulation test to remain to be discussed, brings great trouble to the use of user.
The Chinese patent of 109461352 A of patent application publication CN discloses a kind of high school physics experiment with falling objects
Simulator, including bottom plate, the upper end quadrangle of bottom plate are equipped with balance regulator, high school physics experiment with falling objects simulation dress
It sets, structure is simple, and use is easy to adjust, and fixed, simulation test is accurate, brings greatly just to the use of user
Benefit, and can be adjusted by level angle of the balance regulator to landing face and placed side, be filled by lifting according to demand
Set it is convenient adjust placing height, the adjusting to different free flooring heights guarantees the accurate of experimental data convenient for multiple groups test
Property, the quick release to falling sphere, the position of infrared sensor and pressure sensor real-time detection falling sphere are convenient for by release device
Confidence breath, to complete multiple groups experiment with falling objects, alleviates the teaching load of teacher under acting in timer, improves
Simulation test accuracy, improves the service efficiency of experiment with falling objects simulator.
But a kind of high school physics experiment with falling objects simulator provided in above-mentioned technical proposal is in practice,
Still there is more disadvantage, such as lack control group, is not easy to intuitively observe the relationship of freely falling body and quality, and experimental result
It is influenced by external force, leading to experimental result, there are large errors, are unfavorable for teaching demonstration experiment.
Summary of the invention
In order to overcome the drawbacks described above of the prior art, the embodiment of the present invention provides a kind of high school physics experiment with falling objects
Simulator makes the first experiment cylinder and second test cylinder sliding stretching, adjusts by adjusting the height for adjusting crossbearer and loading plate
Lab sphere height of drop, vacuum pump pumping make the first experiment package and the second experiment package inner vacuum, by two not homogeneities
The lab sphere of amount discharges simultaneously from identical height, carries out experiment with falling objects demonstration, and small, experimental result essence is influenced by external force
Really, experimental error is reduced, it is with distinct contrast, convenient for the relationship of observation quality and acceleration, to solve to propose in above-mentioned background technique
The problem of.
To achieve the above object, the invention provides the following technical scheme: a kind of high school physics experiment with falling objects simulation dress
It sets, including fixed pedestal, balance plate is equipped at the top of the fixed pedestal, two sides are equipped with symmetrical at the top of the fixed pedestal
Two supporting sliders, the supporting slider outside slidably connect sliding sleeve, and two are equipped with adjusting crossbearer between two sliding sleeves,
It is fixedly connected at the top of the balance plate there are two symmetrical mounting plate, is equipped with Buffer Unit at the top of two mounting plates, two
The first experiment package and the second experiment package are respectively equipped on the outside of a Buffer Unit, first experiment package and second is in fact
It tests component side and is equipped with vacuum pump；
First experiment package and the second experiment package are made of the first experiment cylinder and the second experiment cylinder, and described first
Cylinder is tested through the top of the second experiment cylinder, and the first experiment cylinder is slidably connected at the axle center of the second experiment cylinder, described first
It tests cylinder top and is equipped with sealing-plug, the sealing-plug two sides are slidably connected, and there are two the adjusting rod of parallelly distribute on, the adjusting rods
Bottom end is fixedly connected with loading plate, and running through at the loading plate axle center has falling hole, is equipped on the inside of the falling hole several uniform
The sliding slot of distribution, supporting spring is slidably connected in the sliding slot, and the supporting spring is equipped with electric pushrod far from one end of falling hole；
The Buffer Unit includes dashpot, is equipped on the outside of the dashpot and blocks boss, and sliding connects in the dashpot
It is connected to buffer board, the buffer board upper surface is equipped with arc groove, and the buffering trench bottom is fixedly connected with several be uniformly distributed
Buffer bar, the buffer bar runs through buffer board, and buffer bar is slidably connected with buffer board, and the buffer bar outer sheath is equipped with the
One spring；
It is equipped with the first experiment ball inside first experiment package, is equipped with the second experiment inside second experiment package
Ball, the first experiment ball is equal with the second experiment diameter of ball, and the first experiment ball is by stainless steel metal material system
At the second experiment ball is made of plastic material；
The sliding sleeve side is equipped with the first threaded hole, is equipped with the first fixed screw, the sliding sleeve in first threaded hole
It is fixedly connected with supporting slider by the first fixed screw, the adjusting rod is through adjusting crossbearer, and adjusting rod is horizontal through adjusting
Frame through hole is slidably connected, and the adjusting crossbearer side is equipped with the second threaded hole, and it is fixed to be equipped with second in second threaded hole
Screw, the adjusting crossbearer are fixedly connected with adjusting rod by the second fixed screw.
In a preferred embodiment, the fixed pedestal side is fixedly connected with touch display screen, the touch
The connecting pin of display screen is equipped with single-chip microcontroller, and the connecting pin of the single-chip microcontroller is equipped with timing module.
In a preferred embodiment, through-hole, fixed company in the through-hole are offered at the arc groove axle center
Be connected to infrared sensor, the quantity of the timing module is set as two, two timing modules respectively with two infrared biographies
Sensor matches.
In a preferred embodiment, the supporting slider surface is equipped with the first scale strip, the second experiment cylinder
Surface is equipped with the second scale strip.
In a preferred embodiment, the fixed pedestal bottom is fixedly connected with sucker, the fixed pedestal top
Portion quadrangle is fixedly connected to balancing pole, and the balancing pole runs through balance plate, and balancing pole is slidably connected with balance plate, described flat
Bar top weigh equipped with external screw thread, the balancing pole top is threaded with nut, and the balancing pole outer sheath is equipped with second spring,
The second spring is arranged between fixed pedestal and balance plate.
In a preferred embodiment, the first experiment cylinder top is fixedly connected with crossbearer is adjusted, and described second
Experiment cylinder is fixedly connected with balance plate, and the junction of the first experiment cylinder and the second experiment cylinder is fixedly connected with seal washer,
The input terminal of the vacuum pump matches with the second experiment cylinder bottom side.
In a preferred embodiment, the first experiment cylinder and the second experiment cylinder are by acrylic glass material system
At the seal washer and sealing-plug are made of rubber material.
In a preferred embodiment, the loading plate bottom end is set as arc-shaped, and loading plate bottom end and house type
Groove matches, and the cross sectional shape of the falling hole is set as tubaeform, and the first experiment ball is set respectively with the second experiment ball
It sets in two falling hole.
In a preferred embodiment, the input terminal of the single-chip microcontroller be equipped with A/D converter, the single-chip microcontroller it is defeated
Outlet is equipped with D/A converter, and the infrared sensor and A/D converter are electrically connected, the timing module and D/A converter electricity
Property connection.
Technical effect and advantage of the invention:
1, by adjusting the height for adjusting crossbearer and loading plate, so that the first experiment cylinder and second is tested cylinder sliding stretching, adjust
Lab sphere height of drop is saved, vacuum pump pumping makes the first experiment package and the second experiment package inner vacuum, by two differences
The lab sphere of quality discharges simultaneously from identical height, carries out experiment with falling objects demonstration, and small, experimental result essence is influenced by external force
Really, experimental error is reduced, it is with distinct contrast, convenient for the relationship of observation quality and acceleration；
2, fixed pedestal is mounted on a platform by sucker, tightening nut compresses second spring, and according to flat
Platform tilt angle keeps balance plate horizontal positioned, guarantee the free-falling path of the first experiment ball and the second experiment ball respectively with the two
Plumb line be overlapped, stability is good, and test result error is small, and Buffer Unit effectively buffers two spheres and releases stress, and avoids ball
Body pop-up impact the second experiment cylinder, arc groove tumble sphere at its centre point, are convenient for sphere installation, and apparatus structure is compact,
Usage safety performance is high；
3, pass through while discharging the first experiment ball and the second experiment ball, two timing module timing simultaneously in release, two
A infrared sensor cooperation single-chip microcontroller analysis is handled, and control timing module stops in landing, and timing result is touching display
Screen display, is convenient for Experimental comparison, improves the accuracy of timekeeping of simulated experiment.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention.
Fig. 2 is whole left view of the invention.
Fig. 3 is the cross-sectional view of the first experiment package of the invention.
Fig. 4 is the structural schematic diagram of buffer board of the present invention.
Fig. 5 is the top view of loading plate of the present invention.
Fig. 6 is the portion the A schematic enlarged-scale view of Fig. 3 of the present invention.
Fig. 7 is the portion the B schematic enlarged-scale view of Fig. 3 of the present invention.
Fig. 8 is control system architecture schematic diagram of the invention.
Appended drawing reference are as follows: 1 fixed pedestal, 2 balance plates, 3 supporting sliders, 4 seal washers, 5 sliding sleeves, 6 adjust crossbearer, 7 peaces
Boss, 83 buffer boards, 84 arc grooves, 85 buffer bars, 86 first springs, 9 are blocked in loading board, 8 Buffer Units, 81 dashpots, 82
First experiment package, 91 first experiment cylinders, 92 second experiment cylinders, 93 sealing-plugs, 94 adjusting rods, 95 loading plates, 96 falling hole, 97
Supporting spring, 98 electric pushrods, 99 first experiment balls, 10 second experiment packages, 11 vacuum pumps, 12 first fixed screws, 13 second are consolidated
Determine screw, 14 touch display screens, 15 single-chip microcontrollers, 16 timing modules, 17 infrared sensors, 18 first scale strips, 19 second scales
Item, 20 suckers, 21 balancing poles, 22 nuts, 23 second springs.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
A kind of high school physics experiment with falling objects simulator according to shown in Fig. 1-7, including fixed pedestal 1, it is described solid
Determine to be equipped with balance plate 2 at the top of pedestal 1, the 1 top two sides of fixed pedestal are equipped with two symmetrical supporting sliders 3, described
Sliding sleeve 5 is slidably connected on the outside of supporting slider 3, two are equipped with adjusting crossbearer 6 between two sliding sleeves 5, and the balance plate 2 pushes up
Portion is fixedly connected there are two symmetrical mounting plate 7, is equipped with Buffer Unit 8, two bufferings at the top of two mounting plates 7
The first experiment package 9 and the second experiment package 10, first experiment package 9 and the second experimental group are respectively equipped on the outside of component 8
10 side of part is equipped with vacuum pump 11；
First experiment package 9 and the second experiment package 10 are made of the first experiment cylinder 91 and the second experiment cylinder 92,
The first experiment cylinder 91 is through the top of the second experiment cylinder 92, and the first experiment cylinder 91 is sliding at the axle center of the second experiment cylinder 92
Dynamic connection, first experiment, 91 top of cylinder are equipped with sealing-plug 93, and 93 two sides of sealing-plug are slidably connected, and there are two parallel point
The adjusting rod 94 of cloth, 94 bottom end of adjusting rod are fixedly connected with loading plate 95, run through at 95 axle center of loading plate and fall
Hole 96 is equipped with several equally distributed sliding slots on the inside of the falling hole 96, slidably connects supporting spring 97, the support in the sliding slot
Piece 97 is equipped with electric pushrod 98 far from one end of falling hole 96；
The Buffer Unit 8 includes dashpot 81, is equipped on the outside of the dashpot 81 and blocks boss 82, the dashpot 81
Buffer board 83 is inside slidably connected, 83 upper surface of buffer board is equipped with arc groove 84, and 81 bottom of dashpot is fixed to be connected
Several equally distributed buffer bars 85 are connected to, the buffer bar 85 runs through buffer board 83, and buffer bar 85 and buffer board 83 slide
Connection, 85 outer sheath of buffer bar are equipped with the first spring 86；
It is equipped with the first experiment ball 99 inside first experiment package 9, is equipped with second inside second experiment package 10
Ball is tested, the first experiment ball 99 is equal with the second experiment diameter of ball, and the first experiment ball 99 is by stainless steel gold
Belong to material to be made, the second experiment ball is made of plastic material；
5 side of sliding sleeve is equipped with the first threaded hole, is equipped with the first fixed screw 12, the cunning in first threaded hole
Set 5 is fixedly connected with supporting slider 3 by the first fixed screw 12, and the adjusting rod 94, which runs through, adjusts crossbearer 6, and adjusting rod 94
It is slidably connected through 6 through hole of crossbearer is adjusted, 6 side of adjustings crossbearer is equipped with the second threaded hole, in second threaded hole
Equipped with the second fixed screw 13, the adjusting crossbearer 6 is fixedly connected with adjusting rod 94 by the second fixed screw 13；
3 surface of supporting slider is equipped with the first scale strip 18, and second experiment, 92 surface of cylinder is equipped with the second scale strip
19；
1 bottom of fixed pedestal is fixedly connected with sucker 20, and the 1 top quadrangle of fixed pedestal is fixedly connected to flat
Weigh bar 21, and the balancing pole 21 runs through balance plate 2, and balancing pole 21 is slidably connected with balance plate 2, and 21 top of balancing pole is set
There is external screw thread, 21 top of balancing pole is threaded with nut 22, and 21 outer sheath of balancing pole is equipped with second spring 23, institute
Second spring 23 is stated to be arranged between fixed pedestal 1 and balance plate 2；
First experiment 91 top of cylinder is fixedly connected with crossbearer 6 is adjusted, and the second experiment cylinder 92 and balance plate 2 are fixed
The junction of connection, the first experiment cylinder 91 and the second experiment cylinder 92 is fixedly connected with seal washer 4, the vacuum pump 11
Input terminal matches with the second experiment 92 bottom side of cylinder；
The first experiment cylinder 91 and the second experiment cylinder 92 are made of acrylic glass material, durable convenient for clear
Reason, transparency is high, and visual effect is good, and the seal washer 4 and sealing-plug 93 are made of rubber material；
95 bottom end of loading plate is set as arc-shaped, and 95 bottom end of loading plate matches with house type groove, described to fall
The cross sectional shape in hole 96 is set as tubaeform, tests ball with second convenient for the first experiment ball 99 and enters falling hole 96, and described first
Experiment ball 99 and the second experiment ball are separately positioned in two falling hole 96；
Embodiment specifically: under push away loading plate 95 the first experiment ball 99 and the second experiment ball made to respectively enter two and fall
Hole 96, starting electric pushrod 98 stretch out output end, stretch out supporting spring 97 and carry the first experiment ball 99 and the second experiment ball,
The outer Slideslip sliding sleeve 5 of supporting slider 3, adjustment adjust 6 height of crossbearer, and slidable adjustment bar 94 adjusts the height of loading plate 95, and divides
Not Shi Yong the fixed position of the first fixed screw 12 and the second fixed screw 13, the pumping of vacuum pump 11 makes the first experiment package 9 and the
Two experiment packages, 10 inner vacuum, and adjust the first experiment cylinder 91 and the second experiment height of cylinder 92, by the first experiment ball 99 and the
Two experiment balls discharge simultaneously from the identical height of the first experiment package 9 and 10 inside of the second experiment package, carry out experiment with falling objects
Demonstration, it is with distinct contrast, influenced by external force small, experimental result is more accurate, while being convenient for the relationship of observation quality and acceleration, delays
It rushes effectively two spheres of buffering of component 8 to release stress, avoids sphere pop-up impact the second experiment cylinder 92, arc groove 84 makes sphere
It tumbles at its centre point, is convenient for sphere installation.
A kind of high school physics experiment with falling objects simulator according to shown in Fig. 1-8,1 side of fixed pedestal are fixed
It is connected with touch display screen 14, the connecting pin of the touch display screen 14 is equipped with single-chip microcontroller 15, the connecting pin of the single-chip microcontroller 15
Equipped with timing module 16；
Through-hole is offered at 84 axle center of arc groove, infrared sensor 17 is fixedly connected in the through-hole, it is described
The quantity of timing module 16 is set as two, and two timing modules 16 match with two infrared sensors 17 respectively；
The model of the infrared sensor 17 is set as GP2Y0A51SK0F, and the model of the single-chip microcontroller 15 is set as
M68HC16, the model of the vacuum pump 11 are set as ZX512-503-2900, and the model of the electric pushrod 98 is set as JF-
TGA-50；
Embodiment specifically: start command is assigned to single-chip microcontroller 15 by touch display screen 14, is allowed to control electronic push away
98 output end snapback of bar pulls supporting spring 97 to bounce back in sliding slot, and 96 bottom space of falling hole is unimpeded to make the first experiment ball 99
It is fallen simultaneously with the second experiment ball, two timing simultaneously of timing module 16, two infrared sensors 17 sense first respectively at this time
It tests ball 99 and the second experiment ball sends 15 analysis of single-chip microcontroller processing at a distance from 84 bottom end of arc groove, and by range information,
When it is 0 that distance, which detects, single-chip microcontroller 15 controls timing module 16 and stops timing, and by the timing result of two timing modules 16
It is shown in touch display screen 14, is convenient for Experimental comparison, improves the accuracy of timekeeping of simulated experiment.
Working principle of the present invention:
Referring to Figure of description 1-7, adjustment adjusts the height of crossbearer 6 and loading plate 95, and adjusts the first experiment 91 He of cylinder
Second experiment cylinder, 92 height, is determined by the difference of reading of the first scale strip 18 and the second scale strip 19 and regulation experiment sphere is high
Degree, the pumping of vacuum pump 11 make 10 inner vacuum of the first experiment package 9 and the second experiment package, and the first experiment ball 99 and second is real
Ball is tested from the identical height of the first experiment package 9 and 10 inside of the second experiment package while being discharged, experiment with falling objects demonstration is carried out,
Compare two sphere phenomenons, the relationship of observation quality and acceleration；
Referring to Figure of description 3-7, fixed pedestal 1 is mounted on a platform using sucker 20, tightening nut 22 makes
Second spring 23 compresses, and keeps balance plate 2 horizontal positioned according to platform inclination angle, effectively two spheres of buffering of Buffer Unit 8
It releases stress, avoids sphere pop-up impact the second experiment cylinder 92, arc groove 84 tumbles sphere at its centre point；
Referring to Figure of description 1-8, by the first experiment ball 99 of release simultaneously and the second experiment ball, two meters in release
When the timing simultaneously of module 16, two infrared sensors 17 cooperate 15 analyses of single-chip microcontroller processing, and control timing module in landing
16 stop, and timing result is shown in touch display screen 14.
The several points that should finally illustrate are: firstly, in the description of the present application, it should be noted that unless otherwise prescribed and
It limits, term " installation ", " connected ", " connection " shall be understood in a broad sense, can be mechanical connection or electrical connection, be also possible to two
Connection inside element, can be directly connected, and "upper", "lower", "left", "right" etc. are only used for indicating relative positional relationship, when
The absolute position for being described object changes, then relative positional relationship may change；
Secondly: the present invention discloses in embodiment attached drawing, relates only to the structure being related to the embodiment of the present disclosure, other knots
Structure, which can refer to, to be commonly designed, and under not conflict situations, the same embodiment of the present invention and different embodiments be can be combined with each other；
Last: the foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, all in the present invention
Spirit and principle within, any modification, equivalent replacement, improvement and so on, should be included in protection scope of the present invention it
It is interior.
Claims (9)
1. a kind of high school physics experiment with falling objects simulator, including fixed pedestal (1), it is characterised in that: the fixed base
Balance plate (2) are equipped at the top of seat (1), two sides are equipped with two symmetrical supporting sliders (3) at the top of the fixed pedestal (1),
It being slidably connected sliding sleeve (5) on the outside of the supporting slider (3), two are equipped with adjusting crossbearer (6) between two sliding sleeves (5),
It is fixedly connected at the top of the balance plate (2) there are two symmetrical mounting plate (7), two mounting plates (7) tops are equipped with slow
It rushes component (8), is respectively equipped with the first experiment package (9) and the second experiment package (10), institute on the outside of two Buffer Units (8)
It states the first experiment package (9) and the second experiment package (10) side is equipped with vacuum pump (11)；
First experiment package (9) and the second experiment package (10) are by the first experiment cylinder (91) and second experiment cylinder (92) group
At first experiment cylinder (91) is through the top of the second experiment cylinder (92), and the first experiment cylinder (91) tests cylinder second
(92) it is slidably connected at axle center, first experiment cylinder (91) top is equipped with sealing-plug (93), sealing-plug (93) two sides
It is slidably connected there are two the adjusting rod (94) of parallelly distribute on, adjusting rod (94) bottom end is fixedly connected with loading plate (95), institute
It states at loading plate (95) axle center through having falling hole (96), several equally distributed sliding slots is equipped on the inside of the falling hole (96),
It is slidably connected in the sliding slot supporting spring (97), the supporting spring (97) is equipped with electric pushrod far from the one end of falling hole (96)
(98)；
The Buffer Unit (8) includes dashpot (81), is equipped on the outside of the dashpot (81) and blocks boss (82), the buffering
It is slidably connected buffer board (83) in slot (81), buffer board (83) upper surface is equipped with arc groove (84), the dashpot
(81) bottom is fixedly connected with several equally distributed buffer bars (85), and the buffer bar (85) runs through buffer board (83), and slow
Jumper bar (85) is slidably connected with buffer board (83), and buffer bar (85) outer sheath is equipped with the first spring (86)；
It is equipped with the first experiment ball (99) inside first experiment package (9), the is equipped with inside second experiment package (10)
Two experiment balls, first experiment ball (99) is equal with the second experiment diameter of ball, and first experiment ball (99) is not by
Rust steel metal material is made, and the second experiment ball is made of plastic material；
Sliding sleeve (5) side is equipped with the first threaded hole, is equipped with the first fixed screw (12) in first threaded hole, the cunning
Set (5) is fixedly connected with supporting slider (3) by the first fixed screw (12), and the adjusting rod (94), which is run through, adjusts crossbearer (6),
And adjusting rod (94) is slidably connected through crossbearer (6) through hole is adjusted, the adjusting crossbearer (6) side is equipped with the second threaded hole,
The second fixed screw (13) are equipped in second threaded hole, the adjusting crossbearer (6) and adjusting rod (94) are fixed by second
Screw (13) is fixedly connected.
2. a kind of high school physics experiment with falling objects simulator according to claim 1, it is characterised in that: the fixation
Pedestal (1) side is fixedly connected with touch display screen (14), and the connecting pin of the touch display screen (14) is equipped with single-chip microcontroller (15),
The connecting pin of the single-chip microcontroller (15) is equipped with timing module (16).
3. a kind of high school physics experiment with falling objects simulator according to claim 2, it is characterised in that: the arc
Through-hole is offered at groove (84) axle center, is fixedly connected in the through-hole infrared sensor (17), the timing module (16)
Quantity be set as two, two timing modules (16) match with two infrared sensors (17) respectively.
4. a kind of high school physics experiment with falling objects simulator according to claim 1, it is characterised in that: the support
Slide bar (3) surface is equipped with the first scale strip (18), and second experiment cylinder (92) surface is equipped with the second scale strip (19).
5. a kind of high school physics experiment with falling objects simulator according to claim 1, it is characterised in that: the fixation
Pedestal (1) bottom is fixedly connected with sucker (20), and quadrangle is fixedly connected to balancing pole (21) at the top of the fixed pedestal (1),
The balancing pole (21) runs through balance plate (2), and balancing pole (21) is slidably connected with balance plate (2), balancing pole (21) top
End is equipped with external screw thread, and balancing pole (21) top is threaded with nut (22), and balancing pole (21) outer sheath is equipped with the
Two springs (23), the second spring (23) are arranged between fixed pedestal (1) and balance plate (2).
6. a kind of high school physics experiment with falling objects simulator according to claim 1, it is characterised in that: described first
Experiment cylinder (91) top is fixedly connected with crossbearer (6) are adjusted, and second experiment cylinder (92) is fixedly connected with balance plate (2), institute
It states the first experiment cylinder (91) and the junction of the second experiment cylinder (92) is fixedly connected with seal washer (4), the vacuum pump (11)
Input terminal with second experiment cylinder (92) bottom side match.
7. a kind of high school physics experiment with falling objects simulator according to claim 1, it is characterised in that: described first
Experiment cylinder (91) and the second experiment cylinder (92) are made of acrylic glass material, the seal washer (4) and sealing-plug (93)
It is made of rubber material.
8. a kind of high school physics experiment with falling objects simulator according to claim 1, it is characterised in that: the carrying
Plate (95) bottom end is set as arc-shaped, and loading plate (95) bottom end matches with house type groove, the section of the falling hole (96)
It is shaped to tubaeform, first experiment ball (99) is separately positioned in two falling hole (96) with the second experiment ball.
9. a kind of high school physics experiment with falling objects simulator according to claim 3, it is characterised in that: the monolithic
The input terminal of machine (15) is equipped with A/D converter, and the output end of the single-chip microcontroller (15) is equipped with D/A converter, the infrared sensing
Device (17) and A/D converter are electrically connected, and the timing module (16) and D/A converter are electrically connected.
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| CN201910442563.9A CN110148335B (en) | 2019-05-25 | 2019-05-25 | High school physics free fall experiment analogue means |
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|---|---|---|---|
| CN201910442563.9A CN110148335B (en) | 2019-05-25 | 2019-05-25 | High school physics free fall experiment analogue means |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110706560A (en) * | 2019-11-21 | 2020-01-17 | 江苏盐西世纪教育产业项目开发有限公司 | Real sense formula speed experiment presentation device |
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| CN207529561U (en) * | 2017-06-29 | 2018-06-22 | 赵梦珍 | A kind of student physics free fall experimental device |
| CN108269467A (en) * | 2018-03-14 | 2018-07-10 | 方浩然 | A kind of experiment with falling objects apparatus for demonstrating |
| CN207731516U (en) * | 2017-11-01 | 2018-08-14 | 苏畅 | A kind of free fall experimental device |
| CN109461352A (en) * | 2018-12-21 | 2019-03-12 | 刘家铮 | A kind of high school physics experiment with falling objects simulator |
| CN208903509U (en) * | 2018-04-04 | 2019-05-24 | 曾玉慈 | A kind of senior middle school's experiment with falling objects teaching equipment |
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| UA32712U (en) * | 2008-01-21 | 2008-05-26 | Republican Nonschool Education | Educational device for determination of acceleration of free fall |
| CN203085038U (en) * | 2013-01-07 | 2013-07-24 | 吉林大学 | Single-chip microcomputer contrast-type Lenz's law physics demonstration device |
| CN204045082U (en) * | 2014-08-18 | 2014-12-24 | 郑州学生宝电子科技有限公司 | Acceleration of gravity experiment teaching aid in a kind of physics teaching |
| RU163861U1 (en) * | 2015-08-31 | 2016-08-10 | государственное бюджетное образовательное учреждение высшего профессионального образования "Омский государственный медицинский университет" Министерства здравоохранения Российской Федерации (ГБОУ ВПО ОмГМУ Минздрава России) | DEVICE FOR SIMULATING A STUPID LIVER INJURY IN LITTLE LABORATORY ANIMALS BY THE "BLOW" MECHANISM |
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| CN106960617A (en) * | 2017-05-26 | 2017-07-18 | 廖允泰 | A kind of acceleration of gravity experimental provision |
| CN207529561U (en) * | 2017-06-29 | 2018-06-22 | 赵梦珍 | A kind of student physics free fall experimental device |
| CN107331253A (en) * | 2017-08-25 | 2017-11-07 | 将乐县科技馆 | A kind of freely falling body apparatus for demonstrating |
| CN207731516U (en) * | 2017-11-01 | 2018-08-14 | 苏畅 | A kind of free fall experimental device |
| CN108269467A (en) * | 2018-03-14 | 2018-07-10 | 方浩然 | A kind of experiment with falling objects apparatus for demonstrating |
| CN208903509U (en) * | 2018-04-04 | 2019-05-24 | 曾玉慈 | A kind of senior middle school's experiment with falling objects teaching equipment |
| CN109461352A (en) * | 2018-12-21 | 2019-03-12 | 刘家铮 | A kind of high school physics experiment with falling objects simulator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110706560A (en) * | 2019-11-21 | 2020-01-17 | 江苏盐西世纪教育产业项目开发有限公司 | Real sense formula speed experiment presentation device |
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