KR101721922B1 - No-gravity phenomenon drop observation observation experiment using smart device - Google Patents

No-gravity phenomenon drop observation observation experiment using smart device Download PDF

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KR101721922B1
KR101721922B1 KR1020150114716A KR20150114716A KR101721922B1 KR 101721922 B1 KR101721922 B1 KR 101721922B1 KR 1020150114716 A KR1020150114716 A KR 1020150114716A KR 20150114716 A KR20150114716 A KR 20150114716A KR 101721922 B1 KR101721922 B1 KR 101721922B1
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South Korea
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water tank
upper water
guide frame
smart device
test
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KR1020150114716A
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Korean (ko)
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KR20170020050A (en
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이진우
김다민
김승만
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김승만
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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

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Abstract

The present invention relates to a non-gravity phenomenon drop test observation device using a smart device, and it is possible to make an experimental diag- nose in which an experiment object mounted in an upper water tank falls down along a guide frame, And to make it easy to understand and use by the trainee by simplifying the structure of the device. It is also possible to use the smart device which is low in manufacturing cost but excellent in durability, .
To this end, the present invention provides a guide frame comprising a plurality of guide frames installed vertically from the ground; A guide frame support for inserting and fixing a guide frame into a through hole formed at a predetermined distance along an edge thereof; An upper water tank for taking a trapezoidal cross-sectional shape having a narrow bottom diameter and a wide top diameter and being coupled to a guide frame slot connected to the guide frame to perform a linear motion along a guide frame in a sliding manner; When the upper water tank falls downward and is inserted inside, a large amount of air is trapped inside due to the volume change, so that the air resistance prevents the upper water tank from being damaged. A lower water tank; A guide frame slot formed at one end thereof with a slot hole and penetrating through the guide frame and coupled with the upper water tank and the fastening member to connect the guide frame and the upper water tank; A smart device holder for mounting a smart device for capturing a falling state of an object to be dropped mounted on an inner circumferential surface of the upper water tank, a smart device holder mounted inside the upper water tank for receiving an object to be tested, And an airtight cap for sealing the test object by allowing the test container to be detachably attached to the test container by a helical rotation method, The present invention relates to a non-gravity phenomenon drop observation experiment paradigm using a smart device that can prevent drop impact due to acceleration when inserted into a water tank.

Description

No-gravity phenomenon drop test using smart device

The present invention relates to a paralyzed observation experiment for drop-free phenomenon using a smart device. More specifically, an experimental paraphernalia in which an experimental object mounted in an upper water tank falls downward along a guide frame is made so that an instructor can more easily understand the scientific principle of the weightlessness state, and the structure of the device is simplified, And the guide frame is mounted so that the fall acceleration approaches the gravitational acceleration value. However, even if the fall acceleration is close to the gravitational acceleration value, And a monitoring device interlocked with the smart device through wireless communication is provided in the inside of the upper water tank, and a smart device that captures a drop phenomenon of the test subject in real time at high speed is mounted on the inside of the upper water tank. By smart The lower water tank is disposed on the upper surface of the lower plate so that the upper water tank is lowered and inserted into the lower water tank so that the impact can be mitigated through the air resistance method, It is attached to the inner bottom of the water tank and has the spiral structure of the inner circumferential surface so that the experiment vessel can be attached and detached by rotating method. This paper deals with the gravity phenomenon drop observation observation paradigm.

In general, zero gravity is a state that neutralizes the gravity of the earth and makes the gravity zero. It means that the gravity does not have weight inside the satellite or spacecraft or the free-falling elevator.

One way to create the same state of zero gravity on the earth is to make the object free-fall. Since the free fall motion does not receive any force other than gravity while the object is falling, if the resistance of the air is not taken into account, the gravitational acceleration value is g = 9.8 m / s 2 , and the speed of the object increases by 9.8 m / s 2 in one second . Therefore, when an object is free-falling, it drops by gravity, but the net force becomes zero and becomes equal to zero-gravity.

In order to understand the zero gravity phenomenon, some experimental equipments which can test the zero gravity phenomenon for the students are considered, but most of them have a problem that they are costly as expensive equipments or can not observe the zero gravity phenomenon accurately.

Also, as a prior art document related to this, Korean Utility Model Registration Utility Model No. 0456430 (registered on October 25, 2011), a zero gravity test apparatus is disclosed. The present invention is intended to allow a user to freely drop an operating body directly and to test a zero gravity phenomenon while looking at the operating body. The apparatus includes a main body, a vertical post vertically installed in the main body center, An experimental box mounted vertically movably along the post, a rope supported by a pulley provided on the upper part of the main body and lifting the test box, a winding wheel installed inside the main body and wound around the rope, An operation handle attached to the winding wheel so as to wind the rope by rotating the winding wheel; an experimental box position fixing means for fixing the position of the experiment box; Release button for free dropping of the box, installed inside the test box, zero gravity at the free fall of the test box It is installed in the movie camera, the outer body, taken weightlessness, comprises a monitor for displaying a taken image in a movie camera.

However, in the case of the wireless camera mounted in the above-mentioned prior art document, the image quality of the photographed image is not good and the phenomenon can not be observed clearly. The expensive wireless camera must be installed for each device, There is also a problem in that a sufficient gravitational acceleration value can not be obtained.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and in particular, it is an object of the present invention to provide a method and apparatus for a non-gravity state in which a plurality of experimental objects are used, The purpose of this study is to provide an experimental parish that can acquire knowledge and knowledge about the world.

According to an aspect of the present invention, there is provided a zero gravity phenomenon drop test using a smart device, comprising: a plurality of guide frames installed vertically from a ground; A guide frame support for inserting and fixing a guide frame into a through hole formed at a predetermined distance along an edge thereof; An upper water tank for taking a trapezoidal cross-sectional shape having a narrow bottom diameter and a wide top diameter and being engaged with a guide frame slot connected to the guide frame to perform a linear movement along a guide frame in a sliding manner; A lower water tank which has a trapezoidal cross-sectional shape having a narrower bottom diameter and a larger top diameter and prevents the upper water tank from being damaged by the air resistance when the upper water tank is downwardly inserted and is filled inside; A guide frame slot formed at one end thereof with a slot hole and penetrating through the guide frame and coupled with the upper water tank and the fastening member to connect the guide frame and the upper water tank; A smart device holder for mounting a smart device for capturing a falling state of an object to be dropped mounted on an inner circumferential surface of the upper water tank, a smart device holder mounted inside the upper water tank for receiving an object to be tested, And an airtight cap for sealing the test object by allowing the test container to be detachably attached to the test container by a helical rotation method, So that it is possible to prevent a drop impact due to acceleration when it is inserted into the water tank.

A smart device mounted inside the upper water tank and provided with an application capable of shooting and recording a weightless state when the upper water tank falls; And a monitoring device for displaying the photographed and recorded image using wireless communication with the smart device.

Further, it is possible to further include a closure cap which is attached to the inner bottom surface of the upper water tank and has irregularities of a spiral structure on the inner circumferential surface so that the experimental container can be detached and attached in a rotating manner, have.

According to the present invention, it is possible to more easily understand the scientific principle of the weightlessness state by the trainee by making the experimental paradigm in which the test object mounted in the upper water tank falls downward along the guide frame, and by simplifying the structure of the apparatus, It can be easily understood and used, and the manufacturing cost is low, but the durability is excellent, and it is effective to widely spread it in the laboratory and the like.

Further, according to the present invention, it is effective to drop the upper water tank straightly at the center position of the bottom while minimizing the influence of the outside, while allowing the falling acceleration to approach the gravity acceleration value by mounting the guide frame.

In addition, according to the present invention, there is provided a monitoring device that interlocks with a smart device in wireless communication by placing a smart device that captures a falling phenomenon of an object to be tested at high speed in real time in the upper water tank, So that the effect can be observed.

According to the present invention, by disposing the lower water tank on the upper surface of the lower plate, the upper water tank falls down and inserted into the lower water tank, thereby reducing the impact through the air resistance method.

In addition, according to the present invention, it is possible to equip the experimental target and the experiment item uniformly by attaching the stopper cap to attach and detach the experimental container by the rotational method by attaching to the inner bottom surface of the upper water tank and forming the spiral- This has the effect of making it possible.

FIG. 1 is a conceptual diagram of a zero gravity phenomenon observation experiment paradigm using a smart device according to a preferred embodiment of the present invention,
FIG. 2 is an exploded perspective view of an inside of an upper water tank coupled with a guide frame slot of a weightlessness drop observation observation apparatus using a smart device according to a preferred embodiment of the present invention,
3 is a view illustrating a process in which an upper water tank of a diagonal drop observation observation apparatus using a smart device according to a preferred embodiment of the present invention drops freely in a sliding manner,
FIG. 4 is a view for explaining the impact mitigation effect using the air resistance principle when the upper water tank falls freely into the lower water tank in the experiment of dropping zero gravity phenomenon using a smart device according to a preferred embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to designate the same or similar components throughout the drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. In addition, the preferred embodiments of the present invention will be described below, but it is needless to say that the technical idea of the present invention is not limited thereto and can be variously modified by those skilled in the art.

FIG. 1 is a conceptual diagram of a zero gravity phenomenon drop observation experiment using a smart device according to a preferred embodiment of the present invention, and FIG. 2 is a graphical illustration of a zero gravity phenomenon falling test using a smart device according to a preferred embodiment of the present invention. FIG. 3 is a view illustrating a process in which the upper water tank of the paraplegic free falling test using the smart device according to the preferred embodiment of the present invention drops freely in a sliding manner; FIG. FIG. 4 is a graph showing the effect of the air resistance in the case where the upper water tank falls down to the lower water tank in the experiment of dropping zero gravity phenomenon using the smart device according to the preferred embodiment of the present invention. to be.

Referring to FIGS. 1 to 4, a zero gravity phenomenon drop observation experiment using a smart device according to a preferred embodiment of the present invention includes a lower plate 10, a guide frame 12, a subframe 13, a guide frame support 14 A guide frame slot 16, an upper water tank 18, a lower water tank 20, a smart instrument holder 22, a test vessel 24, a sealing plug 26, a stopcock 28, And a monitoring device 32. The monitoring device 32 includes a monitoring device 32,

The bottom plate 10 is disposed closely to the ground.

The guide frame 12 is fixed to the lower plate 10 and installed vertically.

Each of the guide frames 12 is provided along each side edge, and the transfer frame 18 is connected to the guide frame 12 so that the transfer frame 18 falls downward in a sliding manner.

The guide frame 12 is preferably formed in a cylindrical shape so that the upper water tank 18 is accurately and linearly dropped at the center of the floor while the fall acceleration approaches the gravitational acceleration value, .

Here, the shape of the guide frame 12 is not limited to a specific shape.

And a subframe 13 mounted on the upper end of the guide frame 12 for connecting between the guide frames 12 may be further included.

The subframe 13 is formed so as to be assembled and detachable from the guide frame 12.

The guide frame support 14 is fixed to the lower plate 10, and the guide frame 12 is inserted into the through-hole formed at the corner to minimize the shaking.

The guide frame slot 16 is formed with a slot hole at one end and penetrates through the guide frame 12 and is coupled with the upper water tank 18 and the fastening member to connect the guide frame 12 and the upper water tank 18 do.

The guide frame slots 16 may be respectively coupled as a single unit to a proper position where the periphery of the upper water tub 18 and the guide frame 12 are connected to each other and extend in the same axial direction as shown, ). Here, the shape of the guide frame slot 16 is not limited to a specific form.

Conventionally, when the falling object is dropped by using a physical method using a rail, a spring, a weight, or the like as a shock-absorbing method, breakage of the falling object is prevented.

According to the present invention, a method of mitigating an impact by air resistance when the upper water tank is inserted into the lower water tank by using two water tubs having a trapezoidal shape with different diameters of the upper and lower surfaces is devised.

4, the shape of the water tank is formed so that the diameter of the lower surface is narrower than the diameter of the upper surface, so that when the upper water tank falls into the lower water tank and is inserted into the lower water tank, the air filled in the lower water tank is compressed, So that the impact of the upper water tank can be buffered.

It is preferable that the upper water tank 18 has a trapezoidal cross-sectional shape having a lower diameter and a larger upper diameter, and is formed in a circular shape.

The upper water tub 18 is coupled to a guide frame slot 16 connected to the guide frame 12 and performs a linear motion along the guide frame 12 in a sliding manner.

The upper water tub 18 is coupled to a guide frame slot 16 connected to the guide frame 12 and performs a linear motion along the guide frame 12 in a sliding manner.

An experiment vessel 24 in which various experimental objects to be tested for a zero gravity condition can be accommodated and a smart device 30 for photographing the experiment container 24 are installed in the upper water tank 18, And a smart device cradle 22 for receiving the smart device cradle 30.

The lower water tank 20 has a trapezoidal cross-sectional shape having a lower diameter and a larger upper diameter, and is preferably formed in a circular shape.

The lower water tank 20 prevents the upper water tank from being damaged by the air resistance when the upper water tank falls downward and is inserted into the inside.

The lower water tank 20 is located on the upper side of the lower plate 10, and the upper water tank 18 drops downward and is inserted and engaged inside.

The reason for mounting the lower water tank 20 is to prevent the upper water tank 18 from being damaged by the impact of the upper water tank 18 due to an impact when the upper water tank 18 falls freely.

The upper water tank 18 and the lower water tank 20 are preferably formed to have the same size.

As another embodiment, in order to prevent the breakage of the upper water tank 18 due to the impact during the free fall, a latex containing moisture or hydrophobic oil is placed on the upper surface of the lower plate 10 in place of the lower water tank 20 So that the shock can be buffered.

The smart device holder 22 is mounted on the inner circumferential surface of the upper water tank 18 and mounts the smart device 30 so as to capture the falling state of the subject to be dropped.

It is preferable that the position of the smart device holder 22 is disposed at a position where the falling state of the test object 24 attached to the whole of the test container 24 or the inside of the test container 24 can be photographed.

The test vessel 24 is mounted inside the upper vessel 18 and is preferably formed of a transparent vessel to receive the test object and check the drop condition.

In the inner space of the experimental vessel (24), an arbitrary experimental object is accommodated according to the type of experiment, and the experiment is performed after sealing with the sealing plug (26) Can be applied to various situations and observed.

For example, in order to test the zero gravity state of an organism, an organism (tadpole, frog, goldfish, fruit fly, etc.) to be tested is injected into the experimental vessel 24 and sealed with a sealing plug 26.

As another example, in order to test the zero-gravity state of an object, an object to be tested (for example, a table tennis ball used for a buoyancy observation experiment) is inserted and, if necessary, Experiments can be applied.

The sealing plug 26 includes protrusions and recesses repeatedly formed on the inner circumferential surface at regular intervals, and the test object is sealed by attaching and detaching it to and from the test container by a helical rotation method.

One side of the sealing plug 26 is fixed to the upper water tub 18 by being engaged with the perianal stopper 28. At least one seal plug 26 may be mounted as shown in FIG.

The artillery stopper 28 includes irregularities which are attached to the inner bottom surface of the upper water tank 18 and repeatedly formed on the inner circumferential surface so as to be coupled to the experimental vessel 24.

When the experimental target is changed, the rotational type of attaching the experimental vessel 24 by turning the spiral stopper 28 of the helical structure is used, so that the experiment target can be changed even if the experimental subjects are different, so that the experimental target can be uniformly mounted.

The smart device 30 is installed inside the upper water tank 18 and is provided with an application for shooting and recording a zero-gravity state when the upper water tank 18 is dropped, photographing and recording a weightless situation in real time, To the monitoring device (32).

The smart device 30 may be a tablet PC, a smart phone, or the like.

Conventionally, a dedicated camera was installed in order to observe a falling object. However, the quality of the dedicated camera was poor, and the battery capacity of the device was large, which interfered with the shooting or the dropping motion of the upper tank.

In the present invention, by using a smart device possessed by a majority of modern people for photographing an object to be tested, volume is reduced as compared with a conventional dedicated camera, and a zero gravity situation is recorded in real time and wirelessly transmitted.

The monitoring device 32 displays the photographed and recorded images using the wireless communication with the smart device 30. Therefore, it is possible to receive the results of recording and shooting the experiment process in real time.

It will be apparent to those skilled in the art that various modifications, substitutions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. will be. Therefore, the embodiments disclosed in the present invention and the accompanying drawings are intended to illustrate and not to limit the technical spirit of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments and the accompanying drawings . The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

10 - Lower plate 12 - Guide frame
13 - Subframe 14 - Guide frame support
16 - Guide frame slot 18 - Upper water tank
20 - Lower water tank 22 - Smart device holder
24 - Experiment vessel 26 - Closing cap
28 - Artillery plug 30 - Smart device
32 - Monitoring device

Claims (3)

A plurality of guide frames installed vertically from the ground;
A guide frame support for inserting and fixing a guide frame into a through hole formed at a predetermined distance along an edge thereof;
An upper water tank for taking a trapezoidal cross-sectional shape having a narrow bottom diameter and a wide top diameter and being coupled to a guide frame slot connected to the guide frame to perform a linear motion along a guide frame in a sliding manner;
A lower water tank which has a trapezoidal cross-sectional shape having a narrower bottom diameter and a larger top diameter and prevents the upper water tank from being damaged by air resistance when the upper water tank is downwardly inserted and is filled inside;
A guide frame slot formed at one end thereof with a slot hole and penetrating through the guide frame and coupled with the upper water tank and the fastening member to connect the guide frame and the upper water tank;
A smart device holder for mounting a smart device for capturing a falling state of an object to be dropped mounted on an inner peripheral surface of the upper water tank,
An experimental vessel which is mounted inside the upper water tank and accommodates the object to be tested and is formed of a transparent vessel for confirming the falling state of the object to be tested,
A sealing cap for sealing the test object by forming irregularities repeatedly formed on the inner circumferential surface at regular intervals and attaching the test object to the test container by a helical rotation method
Lt; / RTI >
A gravity phenomenon drop observation observation experiment using a smart device that can prevent falling shock caused by acceleration when the upper water tank is dropped into the lower water tank. The method according to claim 1,
A smart device mounted inside the upper water tank and capable of shooting and recording a weightless state when the upper water tank falls; And
Monitoring device that displays shot and recorded images using smart device and wireless communication
And a non-gravity phenomenon drop test using a smart device. The method according to claim 1,
And the test vessel is attached to the inner bottom surface of the upper water tank and the irregular structure of the helical structure is formed on the inner circumferential surface so that the experimental vessel can be detached and attached by the rotating method,
And a non-gravity phenomenon drop test using a smart device.
KR1020150114716A 2015-08-13 2015-08-13 No-gravity phenomenon drop observation observation experiment using smart device KR101721922B1 (en)

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CN107564374B (en) * 2017-10-13 2019-09-10 张艺轩 A kind of Weightlessness-experiencing cabin
CN109192012A (en) * 2018-08-31 2019-01-11 南京理工大学 A kind of physical mechanics acceleration of gravity measuring device
CN110146255B (en) * 2019-06-14 2024-05-17 哈尔滨工程大学 Variable-speed type water-entering slamming experimental device
CN110379261A (en) * 2019-08-01 2019-10-25 郑壹睿 A kind of physics facility for probing into acceleration of gravity
CN111028607B (en) * 2019-12-31 2021-12-31 潘国华 Space weightlessness simulation device, space overweight prevention device and space weightlessness prevention system

Citations (2)

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Publication number Priority date Publication date Assignee Title
KR200347299Y1 (en) 2004-01-12 2004-04-14 박길영 Dropping velocity viewing instrument
KR101328656B1 (en) 2012-04-30 2013-11-14 부산대학교 산학협력단 Free fall launching test device

Patent Citations (2)

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Publication number Priority date Publication date Assignee Title
KR200347299Y1 (en) 2004-01-12 2004-04-14 박길영 Dropping velocity viewing instrument
KR101328656B1 (en) 2012-04-30 2013-11-14 부산대학교 산학협력단 Free fall launching test device

Non-Patent Citations (1)

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Title
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