CN208093010U - A kind of parabolical experiment instrument of dynamically changeable - Google Patents
A kind of parabolical experiment instrument of dynamically changeable Download PDFInfo
- Publication number
- CN208093010U CN208093010U CN201820543885.3U CN201820543885U CN208093010U CN 208093010 U CN208093010 U CN 208093010U CN 201820543885 U CN201820543885 U CN 201820543885U CN 208093010 U CN208093010 U CN 208093010U
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- China
- Prior art keywords
- square box
- water flat
- dress water
- motor
- flat
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Abstract
This patent discloses a kind of parabolical experiment instruments of dynamically changeable, are mainly made of dress water flat-square box, motor, power supply, table and mobile phone, it is characterized in that：Motor rotary shaft fixes a plastics turntable, and dress water flat-square box, which is inserted into the slot of plastics turntable, to be fixed, and one end of a lightweight straight-bar perpendicular to dress water flat-square box and is fixed on plastics turntable, and the other end fixes mobile phone；The dress water flat-square box is the porose flat-square box in top made of transparent resin plate, and grid is carved in a side of dress water flat-square box, and a certain amount of water and a little dyeing kerosene are packed into filling water flat-square box, and being inserted into square box hole with rubber plug makes dress water flat-square box seal；Dress water flat-square box is rotated with same angular velocity with motor with mobile phone, it is observed that the liquid level in the dress water flat-square box under corresponding rotating speed, probes into parabolic equation.Manufacturing cost is low, easy to manufacture, with obvious effects.
Description
Technical field
This patent is related to demonstrating a kind of parabolical experiment instrument of dynamically changeable, belongs to university's mathematics experimental instrument field.
Background technology
The concept that rotary parabolic line is often used in course of University Physics and higher mathematics class, especially to begining to learn mechanics course
University student, it is paraboloidal to the liquid level of rotating liquid be proved to be acquire a certain degree of difficulty, understand difficult, inventor herein
Give series of studies in document [1], lack some corresponding lecture experiments, the prior art mainly with newton bucket test come
Research, since so that the liquid of rotation is reached the same angular speed time spent longer for liquid viscous, observation is also relatively difficult, is arrived
More preferable credible qualitative and quantitative lecture experiment is provided currently without to this problem, how to realize that demo content is abundant, vision effect
Fruit is apparent, and believable lecture experiment instrument, this patent will solve the problems, such as this.This patent is in National Nature fund project
（Item number：11405092）, the provincial institution of higher education's basic service in Heilongjiang Province take scientific research project（Item number：135209251）, it is black
Longjiang institution of higher education of province educational reform and application item（Item number：SJGY20170385）And Qiqihaer City's science and technology project（?
Mesh number：GYGG-201423）Support under complete（The pools inventor Kan Hong are Qiqihar Middle School Students）.
Bibliography：
[1] beams Faku County opens up Mechanics Problem [J]《College Physics》：10 phases in 1987.
Invention content
This patent is the parabolical experiment instrument of a kind of dynamically changeable solved under classroom or class, is flat by filling water emphatically
Square box is rotated under motor drive with same angular speed with mobile phone, realizes the parabolical technology of dynamically changeable.
The art of this patent scheme：A kind of parabolical experiment instrument of dynamically changeable, mainly by dress water flat-square box, electronic mechanical, electrical
Source, table and mobile phone are constituted, it is characterized in that：Motor is fixed on by motor fixing sleeve on the panel of the table of insulation, institute
It states motor fixing sleeve to be made of iron plate material, motor rotary shaft fixes a plastics turntable, and the plastics turntable is to have shaft
With the slot that matches of dress water flat-square box, dress water flat-square box is inserted into fixed in the slot of plastics turntable, fills the central shaft of water flat-square box
On the same line with motor rotary shaft；One end of one lightweight straight-bar is perpendicular to dress water flat-square box and is fixed on plastics turntable,
The other end fixes mobile phone（At least with photograph, video recording, acoustic control and stabilization function smart mobile phone）, it is ensured that dress water flat
Box is within the scope of cell-phone camera（Mobile phone face fills water flat-square box）；The dress water flat-square box is transparent resin plate（Transparent plastic sheet）
The manufactured porose flat-square box in top fills a side of water flat-square box（The one side of face mobile phone）It carves（Print）There is grid（Figure
Paper grid）, a certain amount of water is packed into filling water flat-square box（To fill the interior space 1/4 ~ 1/2 of water flat-square box）With a little dyeing kerosene
（It is that can also only use water for the ease of observing the surface of water to form thin layer in the water surface, is not added with a little dyeing kerosene）, inserted with rubber plug
Entering square box hole makes dress water flat-square box seal；
The panel of the table beats that there are two through-holes to pass through for the conducting wire of tape insulation epidermis, motor and is fixed on table
Panel on power supply connected with varying speed switch by the conducting wire of tape insulation epidermis；
When demonstration, it is video recording or state of taking pictures to open mobile phone（Direct broadcast function can also be enabled）, adjust dress water flat
Box is in the image pickup scope of mobile phone, and close slew switch, dress water flat-square box and mobile phone are with same angular velocity with motor
Rotation, varying speed switch adjust motor speed, it is observed that the liquid level in the dress water flat-square box under corresponding rotating speed, passes through intake
Liquid level image reading data, carry out data fittings, analyze, probe into parabolic equation.
Liquid level for liquid in dress water flat-square box is parabolical proof：Meniscus liquid infinitesimalForce analysis is supported
Power, gravity, establishing horizontal radial isAxis is positive, straight up forAxis is positive
Arrange to obtain equation
Simultaneous obtains
, select bucket bottom for coordinate origin,For vertex of a parabola to the distance at bucket bottom.
This patent is beneficial in that compared with prior art：1. eliminating previous rotation since dress water uses flat-square box
Turn the deficiency that the liquid in bucket is rotated mainly by viscous force, can shorten liquid reach with same angular speed rotation needed for when
Between；2. the liquid for using picture pick-up device and being imaged is rotated with identical angular speed, substituted previous obtained with stroboscopic photograph is schemed
Picture also be reflected in the static image of the relative rotation liquid absorbed on mobile phone；3. having mapping grid, Ke Yijin in flat-square box side
Row digital independent, fitting show that rotary parabolic line gauge is restrained.It is a good enlightening strong lecture experiment instrument, is skillfully constructed,
Simple in structure, easy to implement, easy to operate, visual effect is apparent.
Description of the drawings
Attached drawing 1 is this patent structural schematic diagram.Wherein：1. motor, 2. motor fixing sleeves, 3. tables, 4. plastics turntables,
5. water flat-square box is filled, 6. power supplys, 7. conducting wires, 8. mobile phones, 9. rotation liquid levels（Liquid level is carved with the side pair of grid in dress water flat-square box
The position line answered）, 10. varying speed switch
Specific implementation mode
Such as attached drawing：A kind of parabolical experiment instrument of dynamically changeable, mainly by dress water flat-square box 5, motor 1, power supply 6, platform
Table 3 and mobile phone 8 are constituted, it is characterized in that：Motor 1 is fixed on by motor fixing sleeve 2 on the panel of table 3 of insulation, institute
It states motor fixing sleeve 2 to be made of iron plate material, 1 shaft of motor fixes a plastics turntable 4, and the plastics turntable 4 is to have
The slot of shaft to match with dress water flat-square box 5, dress water flat-square box 5 are inserted into fixed in the slot of plastics turntable 4, dress water flat-square box 5
Central shaft and 1 shaft of motor on the same line；One end of one lightweight straight-bar is perpendicular to dress water flat-square box 5 and is fixed on modeling
Expect on turntable 4, the other end fixes mobile phone 8（With photograph, video recording and voice control function etc.）, it is ensured that dress water flat-square box 5 is taken the photograph in mobile phone 8
As in range（8 face of mobile phone fills water flat-square box 5）；The dress water flat-square box 5 is transparent resin plate（Transparent plastic sheet）It is manufactured
The porose flat-square box in top, a side of dress water flat-square box 5（The one side of face mobile phone 8）It carves（Print）There is grid（Drawing side
Lattice）, two side spacing of water flat-square box 5 are filled in 1 ~ 3mm, and a certain amount of water is packed into filling water flat-square box 5（To fill water flat-square box
5 interior space 1/4 ~ 1/2）With a little dyeing kerosene（Thin layer is formed in the water surface）, being inserted into square box hole with rubber plug makes dress water flat-square box 5
Sealing；
The panel of the table 3 beats that there are two through-holes to pass through for the conducting wire 7 of tape insulation epidermis, motor 1 be fixed on
Power supply 6 on the panel of table 3 is connected by the conducting wire 7 and varying speed switch 10 of tape insulation epidermis；
When demonstration, it is video recording or state of taking pictures to open mobile phone 8（Direct broadcast function can also be enabled）, adjust dress water flat
Box 5 is in the image pickup scope of mobile phone 8, close slew switch 10, and dress water flat-square box 5 is with mobile phone 8 with same angular velocity with electronic
Machine 1 rotates together, and varying speed switch 10 adjusts 1 rotating speed of motor, it is observed that the liquid in the dress water flat-square box 5 under corresponding rotating speed
Face 9 is carried out data fitting, is analyzed, probes into parabolic equation by the liquid level image reading data of intake.
Claims (1)
1. a kind of parabolical experiment instrument of dynamically changeable, mainly by dress water flat-square box (5), motor (1), power supply (6), table
(3) and mobile phone (8) is constituted, it is characterized in that：Motor (1) is fixed on the face of the table (3) of insulation by motor fixing sleeve (2)
On plate, the motor fixing sleeve (2) is made of iron plate material, and motor (1) shaft fixes a plastics turntable (4), the modeling
Material turntable (4) is the slot to match with dress water flat-square box (5) for having shaft, and dress water flat-square box (5) is inserted into plastics turntable (4)
Fixed in slot, the central shaft and motor (1) shaft of dress water flat-square box (5) are on the same line；It hangs down one end of one lightweight straight-bar
Directly in filling water flat-square box (5) and being fixed on plastics turntable (4), the other end fixes mobile phone (8), it is ensured that dress water flat-square box (5) exists
In mobile phone (8) image pickup scope；The dress water flat-square box (5) is the porose flat-square box in top made of transparent resin plate, and dress water is flat
Grid is carved in one side of square box (5), and two side spacing of dress water flat-square box (5) are in 1 ~ 3mm, in dress water flat-square box (5)
Middle to be packed into a certain amount of water and a little dyeing kerosene, being inserted into square box hole with rubber plug makes dress water flat-square box (5) seal；The table (3)
Panel beat that there are two through-holes to pass through for the conducting wire (7) of tape insulation epidermis, motor (1) and the panel for being fixed on table (3)
On power supply (6) connected by the conducting wire (7) and varying speed switch (10) of tape insulation epidermis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820543885.3U CN208093010U (en) | 2018-04-17 | 2018-04-17 | A kind of parabolical experiment instrument of dynamically changeable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820543885.3U CN208093010U (en) | 2018-04-17 | 2018-04-17 | A kind of parabolical experiment instrument of dynamically changeable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208093010U true CN208093010U (en) | 2018-11-13 |
Family
ID=64055325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820543885.3U Expired - Fee Related CN208093010U (en) | 2018-04-17 | 2018-04-17 | A kind of parabolical experiment instrument of dynamically changeable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208093010U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108564858A (en) * | 2018-04-17 | 2018-09-21 | 齐齐哈尔大学 | A kind of parabolical experiment instrument of dynamically changeable |
| CN109612923A (en) * | 2018-12-12 | 2019-04-12 | 长江大学 | Different rotary mode liquid experiment instrument and application method based on imaging system |
-
2018
- 2018-04-17 CN CN201820543885.3U patent/CN208093010U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108564858A (en) * | 2018-04-17 | 2018-09-21 | 齐齐哈尔大学 | A kind of parabolical experiment instrument of dynamically changeable |
| CN108564858B (en) * | 2018-04-17 | 2020-05-12 | 齐齐哈尔大学 | Experimental instrument for dynamic variable parabola |
| CN109612923A (en) * | 2018-12-12 | 2019-04-12 | 长江大学 | Different rotary mode liquid experiment instrument and application method based on imaging system |
| CN109612923B (en) * | 2018-12-12 | 2021-10-29 | 长江大学 | Liquid experimental instrument with different rotation modes based on imaging system and use method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181113 Termination date: 20200417 |