CN104882050A - 多普勒效应可视的原理 - Google Patents

多普勒效应可视的原理 Download PDF

Info

Publication number
CN104882050A
CN104882050A CN201510313849.9A CN201510313849A CN104882050A CN 104882050 A CN104882050 A CN 104882050A CN 201510313849 A CN201510313849 A CN 201510313849A CN 104882050 A CN104882050 A CN 104882050A
Authority
CN
China
Prior art keywords
doppler effect
visual
principle
black
rope
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201510313849.9A
Other languages
English (en)
Inventor
谭永
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201510313849.9A priority Critical patent/CN104882050A/zh
Publication of CN104882050A publication Critical patent/CN104882050A/zh
Pending legal-status Critical Current

Links

Classifications

    • 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
    • G09B23/14—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for acoustics

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mathematical Optimization (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Algebra (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Acoustics & Sound (AREA)
  • Educational Administration (AREA)
  • Educational Technology (AREA)
  • Theoretical Computer Science (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

一个使多普勒效应可视的原理。在看得见的波的实验演示装置中，由于视觉暂留效应，交替变化的黑白条使绳子上产生的波形可视，即可看见一个行波。当使交替变化的黑白条装置与绳子上波的发生装置发生相对运动时，即可产生可视的多普勒效应。本发明用于多普勒效应演示仪的制作。

Description

多普勒效应可视的原理
所属技术领域
本发明涉及一个使多普勒效应可视的原理，特点是能直观地看到多普勒效应，使多普勒效应可视。
背景技术
目前，演示多普勒效应是通过感知频率的变化来实现的，即听得到。使声波源与观察者发生相对运动，观察者接收的频率就会改变。但是，这种演示方法不够直观，不易使学生形成深刻的映象，不便理解记忆。
发明内容
为了使学生在学习多普勒效应时，易形成深刻的映象，便于理解。本发明提供一个使多普勒效应可视的原理，该原理能使多普勒效应可视，可以直观地在学生脑海中形成深刻的印象。
本发明解决其技术问题所采用的技术方案是：在看得见的波的实验演示装置中，由于视觉暂留效应，交替变化的黑白条使绳子上产生的波形可视，即可看见一个行波。当使交替变化的黑白条装置与绳子上波的发生装置发生相对运动时，即可产生可视的多普勒效应，从而直观地演示多普勒效应，达到能够便于学生理解和记忆的目的。
本发明产生的效果是，可以直观地演示多普勒效应，看到波长的改变。
附图说明
下面结合附图对本发明的原理进一步说明。
图1是驻波某一时刻的波形。
图2是驻波另一时刻的波形。
图3是驻波另一时刻的波形。
图4是交替变化的黑白条使波形可视原理图。
图中1.白条。
具体实施方式
当0＜t＜(1/4)T时，驻波波形如图1所示；
当t＝(1/4)T时，驻波波形如图2所示；
当(1/4)T＜t＜(1/2)T时，驻波波形如图3所示。
在图4中，满足白条(1)区域内呈现的像是我们能够看见的，白条(1)区域外不可见。由于人眼的视觉暂留，即眼睛看到物体的像时，当物体移开后，像不会立即消失，而会停留0.1到0.4秒，而这个时间远大于上述周期T。因此，当图4中的白条(1)移动时，再某一个时间段，我们可以看到图4中a、b间在X轴上方的像，接着的另一时间段，我们可以看到图4中a、b间在X轴下方的像。也就是说，a、b之间在X轴上方的波形与在X轴下方的波形在我们脑海中交替出现，产生我们看到的行波。让产生驻波的绳子和滚动的黑白条相对运动。即让图4中，a、c之间产生驻波的装置沿X轴移动。即可产生可视的多普勒效应。

Claims (2)

1.一个使多普勒效应可视的原理，其特征是：能使多普勒效应可视。
2.根据权利要求1所述的原理，其特征是：使交替变化的黑白条装置与绳子上波的发生装置发生相对运动，即可出现可视的多普勒效应。
CN201510313849.9A 2015-06-06 2015-06-06 多普勒效应可视的原理 Pending CN104882050A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510313849.9A CN104882050A (zh) 2015-06-06 2015-06-06 多普勒效应可视的原理

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510313849.9A CN104882050A (zh) 2015-06-06 2015-06-06 多普勒效应可视的原理

Publications (1)

Publication Number Publication Date
CN104882050A true CN104882050A (zh) 2015-09-02

Family

ID=53949526

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510313849.9A Pending CN104882050A (zh) 2015-06-06 2015-06-06 多普勒效应可视的原理

Country Status (1)

Country Link
CN (1) CN104882050A (zh)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2512065Y (zh) * 2001-11-14 2002-09-18 上海科技馆 声波波形演示装置
CN2590095Y (zh) * 2002-12-13 2003-12-03 徐云友 教学用驻波演示器
US20060073459A1 (en) * 2004-10-04 2006-04-06 Allan Robert Crowe Self-contained doppler effect demonstration
CN201812409U (zh) * 2010-09-21 2011-04-27 上海科技馆 驻波互动演示装置
CN102236987A (zh) * 2010-04-29 2011-11-09 上海科技馆 演示多普勒效应的实验装置及其演示多普勒效应的方法
CN202178001U (zh) * 2011-08-17 2012-03-28 宁波华茂文教股份有限公司 可见的振动声波装置
CN203825896U (zh) * 2014-05-15 2014-09-10 马晗森 驻波综合演示仪

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2512065Y (zh) * 2001-11-14 2002-09-18 上海科技馆 声波波形演示装置
CN2590095Y (zh) * 2002-12-13 2003-12-03 徐云友 教学用驻波演示器
US20060073459A1 (en) * 2004-10-04 2006-04-06 Allan Robert Crowe Self-contained doppler effect demonstration
CN102236987A (zh) * 2010-04-29 2011-11-09 上海科技馆 演示多普勒效应的实验装置及其演示多普勒效应的方法
CN201812409U (zh) * 2010-09-21 2011-04-27 上海科技馆 驻波互动演示装置
CN202178001U (zh) * 2011-08-17 2012-03-28 宁波华茂文教股份有限公司 可见的振动声波装置
CN203825896U (zh) * 2014-05-15 2014-09-10 马晗森 驻波综合演示仪

Similar Documents

Publication Publication Date Title
US10056057B2 (en) Resonant modulation of varifocal liquid membrane lens to provide multiple concurrent focal planes in VR display for realistic focus cues
TWI693583B (zh) 顯示裝置及其驅動方法
WO2014078432A3 (en) Devices, systems, and methods for visual-attribute refinement
WO2009100020A3 (en) Facial performance synthesis using deformation driven polynomial displacement maps
JP2014032396A5 (ja) 液晶表示装置及び液晶表示装置の駆動方法
EP2475182A3 (en) Display apparatus, 3D glasses, and control method thereof
CN103778643B (zh) 一种实时生成目标深度信息的方法及其装置
EP2388771A3 (en) Image-displaying device and display control circuit
EP2605517A3 (en) Display apparatus and method of adjusting 3D image therein
EP2605503A3 (en) Display apparatus and method
JP2012133350A (ja) 表示装置
EP2544460A3 (en) Method for controlling display apparatus using brain wave and display apparatus thereof
JP2010191038A5 (zh)
MX2016013843A (es) Monitor frontal.
WO2014014263A3 (en) Image data scaling method and image display apparatus
CN102006489A (zh) 用于立体显示的帧频转换装置及方法
JP4739302B2 (ja) 貫通触感覚提示装置
EP2608548A3 (en) Electronic device and corresponding method for displaying a stereoscopic image
EP2696635A3 (en) Small-scale base station, communication system, and communication method
CN102737607B (zh) 液晶屏幕的显示控制装置和显示控制方法、显示装置
EP2665185A3 (en) Pulse width modulation circuit and pulse width modulation signal generating method having two fresh rates
CN104882050A (zh) 多普勒效应可视的原理
US8803864B2 (en) Method of driving a display panel and a display apparatus performing the method
CN105721849A (zh) 拼接墙3d信号同步显示方法及系统
CN103943072B (zh) 一种电湿润显示器的灰阶形成方法

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
EXSB Decision made by sipo to initiate substantive examination
SE01 Entry into force of request for substantive examination
DD01 Delivery of document by public notice

Addressee: Tan Yong

Document name: Notification of an Office Action

DD01 Delivery of document by public notice
DD01 Delivery of document by public notice

Addressee: Tan Yong

Document name: Notification that Application Deemed to be Withdrawn

DD01 Delivery of document by public notice
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20150902

WD01 Invention patent application deemed withdrawn after publication