CN105336253B - The small two-dimentional magnetic suspension dynamics experiment instrument of frictional noise - Google Patents

The small two-dimentional magnetic suspension dynamics experiment instrument of frictional noise Download PDF

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Publication number
CN105336253B
CN105336253B CN201510912720.XA CN201510912720A CN105336253B CN 105336253 B CN105336253 B CN 105336253B CN 201510912720 A CN201510912720 A CN 201510912720A CN 105336253 B CN105336253 B CN 105336253B
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China
Prior art keywords
microscope carrier
magnetic
sample
collision
demonstration
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Expired - Fee Related
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CN201510912720.XA
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Chinese (zh)
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CN105336253A (en
Inventor
崔荣华
郑志荣
王震
杨晓华
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HANGZHOU DAHUA INSTRUMENT Manufacturing Co Ltd
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HANGZHOU DAHUA INSTRUMENT Manufacturing Co Ltd
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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09BEDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B23/00Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
    • G09B23/06Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
    • G09B23/08Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09BEDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B23/00Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
    • G09B23/06Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
    • G09B23/08Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics
    • G09B23/10Models 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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  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Algebra (AREA)
  • Pure & Applied Mathematics (AREA)
  • Educational Administration (AREA)
  • Computational Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Educational Technology (AREA)
  • Theoretical Computer Science (AREA)
  • Microscoopes, Condenser (AREA)

Abstract

The invention discloses a kind of small two-dimentional magnetic suspension dynamics experiment instrument of frictional noise, including magnetic microscope carrier, magnetic microscope carrier is fixedly mounted with support, pedestal upper end is in the form bent, the top of support is fixed with illuminating lamp and the camera imaged to microscope carrier upper surface, equipped with having magnetic collision demonstration sample on magnetic microscope carrier, collision demonstration sample is suspended on magnetic microscope carrier;Be fixed with the fence range of movement for colliding demonstration sample being limited in certain scope on magnetic microscope carrier, fence inner upper is fixed with coil, and fence side is provided with the percussion lock that power is provided to collision demonstration sample.The present invention is rational in infrastructure, easy to use, is not almost rubbed during experiment, noise very little.

Description

The small two-dimentional magnetic suspension dynamics experiment instrument of frictional noise
The application is application number:201310626906.X, the applying date:2013.12.2, title " two-dimensional magnetic levitation power The divisional application of experiment instrument ".
Technical field
The present invention relates to a kind of two-dimentional magnetic suspension dynamics experiment instrument.
Background technology
Existing dynamics teaching experiment is carried out all on guide rail, is all to do one-dimensional Experiments of Machanics, some experiments Instrument frictional force is larger, there is noise during experiment.
The content of the invention
Almost do not rubbed it is an object of the invention to provide a kind of, noise very little can implement a peacekeeping two dimensional dynamic Learn the two-dimentional magnetic suspension dynamics experiment instrument of experiment.
The present invention technical solution be:
A kind of two-dimentional magnetic suspension dynamics experiment instrument, it is characterized in that:Including magnetic microscope carrier, magnetic microscope carrier is fixedly mounted with support, branch Frame upper end is in the form of bending, and the top of support is fixed with illuminating lamp and the camera imaged to microscope carrier upper surface, magnetic Equipped with having magnetic collision demonstration sample on microscope carrier, collision demonstration sample is suspended on magnetic microscope carrier;It is fixed on magnetic microscope carrier There is the fence range of movement for colliding demonstration sample being limited in certain scope, fence inner upper is fixed with coil, enclosed Column side is provided with the percussion lock that power is provided to collision demonstration sample.
The magnetic microscope carrier includes base, and base is provided with indent, indent to be fixedly mounted with magnetic magnet, indent and covered Ferrimagnet plate;Magnetic microscope carrier base is by supported at three point, wherein 2 points are equipped with a water on adjustable form, magnetic microscope carrier Level.
It is furnished with grid with a scale on magnetic microscope carrier face, the position to obtain collision demonstration sample on video pictures.
The periphery of whole magnets sets a coil in the base, to adjust the magnetic field on magnetic microscope carrier table top.
The collision demonstration sample does not interfere with the material in magnetic field with lightweight, and is partially submerged into collision demonstration sample edge Equally distributed small magnet.
Different sample tracks or spring assembly are configured on magnetic microscope carrier table top, to meet collision in the case of different experiments Demonstrate movement locus and the movement velocity requirement of sample;Track or the spring assembly material for not interfering with periphery magnetic field.
The present invention is rational in infrastructure, easy to use, is not almost rubbed during experiment, noise very little.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the structural representation of an example of the invention.
Fig. 2 magnetic microscope carrier base figures.
Fig. 3 is collision demonstration sample schematic diagram.
Embodiment
A kind of two-dimentional magnetic suspension dynamics experiment instrument, including magnetic microscope carrier 1, magnetic microscope carrier are fixedly mounted with support 2, and pedestal upper end is in The form of bending, the top of support, which is fixed with illuminating lamp and the camera 3 imaged to microscope carrier upper surface, magnetic microscope carrier, matches somebody with somebody There is the magnetic collision demonstration sample 4 of tool, collision demonstration sample is suspended on magnetic microscope carrier;Being fixed with magnetic microscope carrier to collide The range of movement of demonstration sample is limited in the fence 5 in certain scope, and the shell material for not interfering with magnetic field of fence encloses Column inner upper is fixed with coil, to preferably sample is demonstrated in control on microscope carrier;Fence side, which is provided with, gives collision demonstration sample Product provide the percussion lock 6 of power(Spheroid is for example projected by spring mechanism and hits collision demonstration sample, collision is demonstrated sample With power).
The magnetic microscope carrier includes base 7, and base is provided with indent, indent and is fixedly mounted with magnetic magnet 8, indent overlying Top iron and screw plate of magnetic material;Magnetic microscope carrier base is by supported at three point, wherein 2 points are to be furnished with one on adjustable form, magnetic microscope carrier Level meter 9.
It is furnished with grid with a scale on magnetic microscope carrier face, the position to obtain collision demonstration sample on video pictures.
The periphery of whole magnets sets a coil in the base, to adjust the magnetic field on magnetic microscope carrier table top.
The collision demonstration sample material for not interfering with magnetic field, and be partially submerged into uniformly in collision demonstration sample edge The small magnet 10 of distribution, can preferably keep Sample equilibration;There are direction signs on demonstration sample.
Different sample tracks or spring assembly are configured on magnetic microscope carrier table top, to meet collision in the case of different experiments Demonstrate movement locus and the movement velocity requirement of sample;Track or the spring assembly material for not interfering with periphery magnetic field.
The material for not interfering with magnetic field is plastics etc..Instrument external one can control two coil currents and illuminating lamp Power supply 11.
Magnet is evenly distributed in base, and the specification of magnet is consistent, and polarity is consistent, and such as top is all N poles;Sample is suspended in load When on platform, the polarity in sample below small magnet is identical with the polarity above microscope carrier, is all such as N poles;Fence inner upper is away from load The certain vertical distance of platform can set the opposite polarity above polarity of the magnetic field and microscope carrier after coil, energization below coil.
The realization tested the speed:
Scale grid is carried on microscope carrier;Entered by being placed in motion of the video camera above microscope carrier to particle on microscope carrier or rigid body Row video record;Arbitrarily take suitable two frame video image(Time interval between two frame video images has determined that), analyze image Obtain the position of particle(With reference to microscope carrier table top grid)Or the rotational case of rigid body, so as to obtain the speed or firm of particle respectively Body rotational angular velocity, so as to obtain other related physical quantities.
Application method:
2 points of height of adjusting base coordinate level meter to cause microscope carrier level during Preparatory work of experiment, by two coils(Fence The coil of inner upper fixation and the in the base coil of whole magnet peripheries)Regulation cause demonstration sample be suspended in microscope carrier platform On face, illuminating lamp and camera are opened, demonstration sample provides power, camera production sample motion or sample by percussion lock Between collision process video, by several images in video demonstrate sample position and microscope carrier scale grid analysis and regard Frequently the time relationship between each figure phase, just can obtain sample velocities, the information such as angular speed, so as to obtain other related things Reason amount, verifies related physics law.
During experiment, illuminating lamp is opened, adjusting base coil current while placing sample makes demonstration sample be suspended in microscope carrier On, camera is started working, and the demonstration determined power of sample one is given by percussion lock, and demonstration sample does certain forms on microscope carrier Motion is collided, and camera records the motion process video of demonstration sample.
The experimental project that this experimental provision can be related to includes:Particle collision, Rigid Body Collision, simple harmonic oscillation, Newton's law, Acceleration of gravity, conservation of mechanical energy, many particle associated movements, circular motion etc..

Claims (1)

1. a kind of small two-dimentional magnetic suspension dynamics experiment instrument of frictional noise, it is characterized in that:Including magnetic microscope carrier, magnetic microscope carrier is consolidated Support is filled, pedestal upper end is in the form of bending, and the top of support is fixed with illuminating lamp and to taking the photograph that microscope carrier upper surface is imaged As head, equipped with having magnetic collision demonstration sample on magnetic microscope carrier, collision demonstration sample is suspended on magnetic microscope carrier;Magnetic is carried Be fixed with the fence range of movement for colliding demonstration sample being limited in certain scope on platform, fence side is provided with to collision Demonstrate the percussion lock that sample provides power;The periphery of whole magnets sets a coil in the base, to adjust magnetic microscope carrier Magnetic field on table top;The collision demonstration sample material for not interfering with magnetic field, and it is embedding in collision demonstration sample edge part Enter equally distributed small magnet;Different sample tracks or spring assembly are configured on magnetic microscope carrier table top, to meet different realities The movement locus of collision demonstration sample and movement velocity requirement in the case of testing;Track or spring assembly be not with interfering with periphery magnetic field Material;The magnetic microscope carrier includes base, and base is provided with indent, indent to be fixedly mounted with magnetic magnet, indent and covered Ferrimagnet plate;Magnetic microscope carrier base is by supported at three point, wherein 2 points are equipped with a water on adjustable form, magnetic microscope carrier Level;It is furnished with grid with a scale on magnetic microscope carrier face, the position to obtain collision demonstration sample on video pictures passes through It is placed in motion of the video camera above microscope carrier to particle on microscope carrier or rigid body and carries out video record;Arbitrarily take suitable two frames video Image, the position of particle or the rotational case of rigid body is obtained with reference to microscope carrier table top network analysis image, so as to obtain matter respectively The speed or Rigid Body in Rotation With angular speed of point, so as to obtain other related physical quantities;Instrument external one can control two coil electricity The power supply of stream and illuminating lamp;
Magnet is evenly distributed in base, and the specification of magnet is consistent, and polarity is consistent;When sample is suspended on microscope carrier, small magnetic in sample Polarity below body is identical with the polarity above microscope carrier, and fence inner upper sets coil away from the certain vertical distance of microscope carrier, after energization The opposite polarity above polarity of the magnetic field and microscope carrier below coil;
Application method:
2 points of height of adjusting base coordinate level meter to cause microscope carrier level during Preparatory work of experiment, are caused by the regulation to two coils Demonstration sample is suspended on microscope carrier table top, opens illuminating lamp and camera, and demonstration sample provides power, shooting by percussion lock Head production sample motion or sample room collision process video, pass through position and the microscope carrier to demonstrating sample in several images in video Time relationship between the analysis of scale grid and each image of video, just can obtain sample velocities, angular velocity information, so as to To obtain other related physical quantitys, related physics law is verified;
During experiment, illuminating lamp is opened, adjusting base coil current while placing sample makes demonstration sample be suspended on microscope carrier, Camera is started working, and the demonstration determined power of sample one is given by percussion lock, and demonstration sample does the fortune of certain forms on microscope carrier Dynamic or collision, camera records the motion process video of demonstration sample.
CN201510912720.XA 2013-12-02 2013-12-02 The small two-dimentional magnetic suspension dynamics experiment instrument of frictional noise Expired - Fee Related CN105336253B (en)

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CN201310626906.XA CN103606322B (en) 2013-12-02 2013-12-02 Two dimension magnetic suspension dynamics experiment instrument
CN201510912720.XA CN105336253B (en) 2013-12-02 2013-12-02 The small two-dimentional magnetic suspension dynamics experiment instrument of frictional noise

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CN201510912722.9A Expired - Fee Related CN105469673B (en) 2013-12-02 2013-12-02 Two-dimentional magnetic suspension dynamics experiment instrument rational in infrastructure
CN201510912720.XA Expired - Fee Related CN105336253B (en) 2013-12-02 2013-12-02 The small two-dimentional magnetic suspension dynamics experiment instrument of frictional noise
CN201510912721.4A Expired - Fee Related CN105336254B (en) 2013-12-02 2013-12-02 Two-dimentional magnetic suspension dynamics experiment instrument easy to use
CN201310626906.XA Active CN103606322B (en) 2013-12-02 2013-12-02 Two dimension magnetic suspension dynamics experiment instrument

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Publication number Priority date Publication date Assignee Title
CN109147510B (en) * 2018-08-01 2023-09-05 浙江大学 Two-axis dynamic magnetic levitation experiment instrument and measuring method
CN110095244A (en) * 2019-05-08 2019-08-06 唐山学院 A kind of engineering mechanics collision test device

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GB2431281A (en) * 2005-09-10 2007-04-18 Robert Paul Adderley Magnetically suspended globe
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CN201518175U (en) * 2009-06-05 2010-06-30 衡阳师范学院 Novel permanent magnet suspension demonstrating instrument
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Publication number Priority date Publication date Assignee Title
GB2431281A (en) * 2005-09-10 2007-04-18 Robert Paul Adderley Magnetically suspended globe
CN101494004A (en) * 2009-02-18 2009-07-29 陕西师范大学 Experimental apparatus for steel ball magnetic suspension movement
CN201518175U (en) * 2009-06-05 2010-06-30 衡阳师范学院 Novel permanent magnet suspension demonstrating instrument
TWM426701U (en) * 2011-12-09 2012-04-11 Wen-Ji Xie Magnetic-repellent suspension device
CN202615681U (en) * 2012-06-06 2012-12-19 雷建设 Magnetic levitation principle demonstrator for multiple objects
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CN105336254A (en) 2016-02-17
CN103606322B (en) 2016-02-10
CN105469673B (en) 2017-09-22
CN105336253A (en) 2016-02-17
CN105336254B (en) 2017-10-31
CN105469673A (en) 2016-04-06
CN103606322A (en) 2014-02-26

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