Author Topic: Basic Function of an Oscilloscope  (Read 394206 times)

Fu-Kwun Hwang

  • Administrator
  • Hero Member
  • *****
  • Posts: 3062
    • Enjoy the fun of physics with simulations
Re: Basic Function of an Oscilloscope
« Reply #30 on: January 29, 2010, 11:38:04 pm »
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.

nolkelvin

  • Newbie
  • *
  • Posts: -1
Re: Basic Function of an Oscilloscope
« Reply #31 on: February 22, 2011, 01:45:03 am »
I have downloaded, but it's not working for offline

ahmedelshfie

  • Hero Member
  • Posts: 930
Re: Basic Function of an Oscilloscope
« Reply #32 on: February 22, 2011, 02:05:18 am »
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  ;)

Fu-Kwun Hwang

  • Administrator
  • Hero Member
  • *****
  • Posts: 3062
    • Enjoy the fun of physics with simulations
Re: Basic Function of an Oscilloscope
« Reply #33 on: February 22, 2011, 09:20:59 am »
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.

lookang

  • Hero Member
  • *****
  • Posts: 1772
  • http://weelookang.blogspot.com
    • lookang web
Re: Basic Function of an Oscilloscope
« Reply #34 on: March 24, 2011, 11:32:44 pm »
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 ;D



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.

Fu-Kwun Hwang

  • Administrator
  • Hero Member
  • *****
  • Posts: 3062
    • Enjoy the fun of physics with simulations
Re: Basic Function of an Oscilloscope
« Reply #35 on: March 27, 2011, 04:24:58 pm »
Here is the EJS version of the same applet

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!

lookang

  • Hero Member
  • *****
  • Posts: 1772
  • http://weelookang.blogspot.com
    • lookang web
Re: Basic Function of an Oscilloscope
« Reply #36 on: March 28, 2011, 12:10:10 am »
awesome!

will study it and remix it soon  ;D

thanks!

mike1966

  • Newbie
  • *
  • Posts: 1
Re: Basic Function of an Oscilloscope
« Reply #37 on: June 15, 2011, 02:38:19 am »
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
 :) :) :) :)

MelissaDaisy99

  • Newbie
  • *
  • Posts: 1
Re: Basic Function of an Oscilloscope
« Reply #38 on: June 22, 2011, 03:26:07 pm »
Well, great work! You have helped me to improve my knowledge about this field. Thank you so much for sharing.

-*-

kwinter

  • Newbie
  • *
  • Posts: 1
Re: Basic Function of an Oscilloscope
« Reply #39 on: February 21, 2012, 12:31:21 am »
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

Fu-Kwun Hwang

  • Administrator
  • Hero Member
  • *****
  • Posts: 3062
    • Enjoy the fun of physics with simulations
Re: Basic Function of an Oscilloscope
« Reply #40 on: February 21, 2012, 11:07:21 am »
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 !

lookang

  • Hero Member
  • *****
  • Posts: 1772
  • http://weelookang.blogspot.com
    • lookang web
Re: Basic Function of an Oscilloscope
« Reply #41 on: October 05, 2012, 03:05:32 pm »
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.

koclup1580

  • Newbie
  • Posts: -16
    • ????????????
Re: Basic Function of an Oscilloscope
« Reply #42 on: December 29, 2012, 02:12:30 pm »
 thank you so much. :)
-*-

tcruise7771

  • Newbie
  • *
  • Posts: 1
Re: Basic Function of an Oscilloscope
« Reply #43 on: March 31, 2013, 04:27:56 pm »
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 ?

diinxcom

  • Newbie
  • Posts: -25
  • Designer
    • jasa pembuatan website
Re: Basic Function of an Oscilloscope
« Reply #44 on: January 30, 2015, 09:17:43 pm »
-*-
I am very interested because I have to make an end work for schools.
Thanks :)