Fu-Kwun Hwang
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Reply #30 on: January 29, 2010, 10:38:04 pm » posted from:Taipei,T\'ai-pei,Taiwan
Thank you for your suggestions.
There are many different kinds of oscilloscope.
Yes. There are many oscilloscopes which the time/div and volts/div knobs are fixed steps.
However, there are also digital oscilloscopes which the time/div and volts/div knobs can be adjusted continuously.
The above simulation already provide a
yoffset knob for moving the trace vertically.
The purpose for the above simulation is to help user understand how the trace of the oscilloscope was formed.
That is why it provide options for users to select types of X/Y functiona:
A sin(wt+B) or
C t +D If you need a simulation which is very similar to the one you are using. I will try to create one for you if you can provide a picture of the oscilloscope need to be simulated.
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nolkelvin
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Reply #31 on: February 22, 2011, 12:45:03 am » posted from:Jakarta,Jakarta Raya,Indonesia
I have downloaded, but it's not working for offline
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ahmedelshfie
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Reply #32 on: February 22, 2011, 01:05:18 am » posted from:Uberaba,Minas Gerais,Brazil
You have to choose first
download file after you hit by mouse
Get files for offline use After finish download unzip the file you will be already to access applet in your PC.
The download offline is work normal
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Fu-Kwun Hwang
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Reply #33 on: February 22, 2011, 08:20:59 am » posted from:Taipei,T\'ai-pei,Taiwan
I have downloaded, but it's not working for offline
There is no way to help you if you did not tell us what you did with the download file?
Is there any error message,...etc.
We do not know how to help if you just said it's not working.
Try to unzip downloaded file,then open html file with your browser.
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lookang
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Reply #34 on: March 24, 2011, 10:32:44 pm » posted from:Singapore,,Singapore
this is a good jdk simulation of the Cathode Ray Oscilloscope (CRO).
will there be an Ejs version soon? i don't think anyone has made one in Ejs yet.
for your consideration
btw i found some java applet here
http://www.phys.hawaii.edu/~teb/java/ntnujava/oscilloscope/oscilloscope.html by hwang@phy03.phy.ntnu.edu.tw
http://www.ece.ncsu.edu/virtuallab/JAVA/applets/osc.html by daniel hoag and erwin d'souza copyirght NC state university
http://www.csupomona.edu/~pbsiegel/gsix/oscilloscope.htm by Peter Siegel California State Polytechnic University
the learning objective is
Determine the frequency of sound using a calibrated C.R.O.
Determination of frequency of sound using a calibrated C.R.O.
• Sound are longitudinal waves of compressions and rarefactions through a physical medium, for example air.
• The frequency of the sound waves from a given source could be determined using a calibrated cathode-ray oscilloscope (C.R.O.) as follows:
- the source of sound e.g. a loud speaker is placed a short distance from a microphone connected to a calibrated C.R.O. as shown.
- The time base of the C.R.O. is adjusted until a stationary trace is obtained.
- The period of the sound wave is given by the product of the length of one wave cycle and the time base setting.
- The frequency of the wave is the reciprocal of the period.
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Fu-Kwun Hwang
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Reply #35 on: March 27, 2011, 03:24:58 pm » posted from:Taipei,T'ai-pei,Taiwan
Here is the EJS version of the same applet
Embed a running copy of this simulation
Embed a running copy link(show simulation in a popuped window)
Full screen applet or
Problem viewing java? Add http://www.phy.ntnu.edu.tw/ to exception site list Press the Alt key and the left mouse button to drag the applet off the browser and onto the desktop. This work is licensed under a
Creative Commons Attribution 2.5 Taiwan License
Please feel free to post your ideas about how to use the simulation for better teaching and learning.
Post questions to be asked to help students to think, to explore.
Upload worksheets as attached files to share with more users.
Let's work together. We can help more users understand physics conceptually and enjoy the fun of learning physics!
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lookang
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Reply #36 on: March 27, 2011, 11:10:10 pm » posted from:Singapore,,Singapore
awesome!
will study it and remix it soon
thanks!
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mike1966
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Reply #37 on: June 15, 2011, 01:38:19 am » posted from:Pátrai,Akhaia,Greece
Thank you for all.
You are very helpful. I enjoy your work and you make me more comfortable in the classroom.
Michael Petropoulos
Patras, Hellas
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MelissaDaisy99
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Reply #38 on: June 22, 2011, 02:26:07 pm » posted from:Hanoi,Dac Lac,Vietnam
Well, great work! You have helped me to improve my knowledge about this field. Thank you so much for sharing.
-*-
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kwinter
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Reply #39 on: February 20, 2012, 11:31:21 pm » posted from:,,Satellite Provider
I downloaded the ZIP files. After un-zipping, I have the following files:
back GIF Image
index Chrome HTML Document
knob.class CLASS File
oscilloscope.class CLASS File
oscilloscope Chrome HTML Document
oscilloscope_kr Chrome HTML Document
oscilloscope_s Chrome HTML Document
sample GIF Image
scope GIF Image
My problem is that I don't know what to do next. Also, what version of JAVA do I need?
Any help?
Thanks,
Ken Winter
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Fu-Kwun Hwang
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Reply #40 on: February 21, 2012, 10:07:21 am » posted from:,,Satellite Provider
Double click index.html to open it or use your browser open file and select index.html file.
Any version of java will do since it was created with JDK1.0.2 !
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lookang
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Reply #41 on: October 05, 2012, 02:05:32 pm » posted from:SINGAPORE,SINGAPORE,SINGAPORE
Here is the EJS version of the same applet
dear prof!
i solved a bug
please replace the following line in the code.
// yfun2="("+yfun+")/vdiv+v0";
yfun2="("+yfun+")/vdiv*dy+v0";
missing dy
thanks again for advancing the world of physics education.
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koclup1580
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Reply #42 on: December 29, 2012, 01:12:30 pm » posted from:,,Satellite Provider
thank you so much.
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tcruise7771
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Reply #43 on: March 31, 2013, 03:27:56 pm » posted from:Burgas,Burgas,Bulgaria
Is it possible for you to modify the code to be able to use the input of the audio in of the microphone as a signal input and thus capable of displaying syne waves and frequency of the input signal ?
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diinxcom
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Reply #44 on: January 30, 2015, 08:17:43 pm » posted from:,,Satellite Provider
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I am very interested because I have to make an end work for schools.
Thanks
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