NTNUJAVA Virtual Physics Laboratory
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JDK1.0.2 simulations (1996-2001) => Misc => Topic started by: Fu-Kwun Hwang on January 29, 2004, 11:20:57 pm



Title: Vernier
Post by: Fu-Kwun Hwang on January 29, 2004, 11:20:57 pm
There is a new advanced version: vernier cliper (inch/mm mode, dial mode, measure inner/outer diameter and depth) (http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=1408) 2010 Jan. 17 updated.



    This java applet shows you how to read the vernier scale on Vernier calipers.
    To observe how the scales are read, click in the "checkbox" by SHOW and drag the lower scale left or right to observe how the measurement is determined.
    Notice that the value for the upper scale is determined by where the 0 on the lower scale lines up with the upper scale and the number on the lower scale is determined by finding which mark on the lower scale best lines up with ANY mark on the upper scale.
    To test your ability to read a measurement, leave SHOW unchecked and then drag the lower scale left or right.

    The applet will wait for you to enter a value into the TextField and will then tell you whether your answer is correct.(After you type in an answer, press Enter.)
    Thanks goes to Mary Ball for rewording the instructions.



    This is another applet to help you understand how it works.
    You can drag the lower box or use the slider to see the gap between those boxes at different level.
    It is the gap which give us higher precission!
    -*-
    [ejsapplet]

    There is a similar applet : Vernier Calipers (http://members.shaw.ca/ron.blond/Vern.APPLET/index.html)

Check out EJS version of similar applet: Vernier Caliper and Micrometer with zero error options (http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=567.0)
or Another Cliper (http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=1189.0)

[youtube=Vz40xmrdhyY]


Title: topic52
Post by: on January 30, 2004, 11:11:55 am
Subject: learning from you
Date: Mon, 24 Aug 1998 20:47:51 +0800
From: Edmund J A Ang <edmunda@moe.edu.sg>
To:   hwang@phy03.phy.ntnu.edu.tw
I would like to learn from you. How did you write the animated
programmes e.g. vernier calipers. Very interesting.
regards
teacher Edmund ang


Title: topic52
Post by: on January 30, 2004, 11:32:52 am
Subject:
Date:      Tue, 16 Feb 1999 16:27:13 -0000
From:      Brad Busch <blbusch@class1.com>
To:        "'hwang@phy03.phy.ntnu.edu.tw'" <hwang@phy03.phy.ntnu.edu.tw>
Your caliper java applet is cool -

Brad Busch
VP Engineering, Class1 Inc.


Title: topic52
Post by: on January 30, 2004, 11:39:25 am
Subject:  Permission to link to your site
Date:     Thu, 11 Mar 1999 10:39:57 -0800
From:     cmcLean <cmclean@webacademy.net>
To:       "'hwang@phy03.phy.ntnu.edu.tw'" <hwang@phy03.phy.ntnu.edu.tw>
I would like to commend you on a wonderful site.  The Vernier site is informative and
fun. I wanted to get your permission to link to your Vernier from a Cumberland County
Educational Physics course website.  It was suggested to us that we get permission to
link to any sites so that we don't infringe on any copyright laws.  I appreciate your hard
work.. You can respond to cmclean@webacademy.net
Thank -You for your time.
Carol McLean
Teacher


Title: topic52
Post by: on January 30, 2004, 11:39:41 am
Subject:  thank you
Date:     Fri, 12 Mar 1999 14:52:00 -0500
From:     Dany Marquis <dmarquis@RDS.CA>
Organization: Réseau Des Sports
To:       hwang@phy03.phy.ntnu.edu.tw
 
Your application in java to learn how to read a vernier help me.
Dany Marquis
RDS
Montréal


Title: topic52
Post by: on January 30, 2004, 12:46:35 pm
Subject: Vernier applet
Date: Tue, 31 Aug 1999 10:31:42 +0100
From: Cathal Flynn <cathal.flynn@nuigalway.ie>
To: hwang@phy03.phy.ntnu.edu.tw
Dear Dr. Hwang,
        I have used some of your physics applets and I find them to be excellent.
Well done! At the moment in the Physics Department we are making changes to
our first year physics labs and would like to include your Vernier applet
in one of the labs in order to help the students learn to read a vernier
scale properly. Is is OK if we include the applet in one experiment?
Thanking you in advance,

Yours Sincerely,

Dr. Cathal Flynn
Department of Experimental Physics
National University of Ireland
Galway
Ireland


Title: topic52
Post by: on February 18, 2004, 06:32:58 am
I really appreciate your site. I needed to brush up on my vernier caliper readings for a new job.    Thanks
L5Ric@aol.com


Title: Request for links to website
Post by: angjl on February 27, 2004, 05:44:29 am
Hi Assoc. Prof. Fu-Kwun Hwang,

i am a Physics teacher from Singapore. I started using your applets in a Junior College and find them interesting and helpful for my students to visualise Physics concepts.
presently i'm teaching in a secondary school. i've set up a site at www.angjl.per.sg/Deyi.htm and i would like to have your permission to include links to applets in your site - begining with Vernier and Vector Addition.

thanks and best regards   :)
Mr Ang Joo Liak  :shock:


Title: topic52
Post by: Fu-Kwun Hwang on February 28, 2004, 01:09:45 pm
You are welcomed to add out URL to your web site!  :wink:


Title: topic52
Post by: on March 01, 2004, 06:35:43 am
Gentlemen:

Many thanks for your very helpful site describing the method of reading the
Vernier caliper.

I recently purchased a Starrett Vernier caliper on Ebay which is in
excellent condition and
although I thought I knew how to "read" the instrument I was not certain.
Your site was a
great help in assisting me to confirm what I already thought was the correct
method.

Many thanks to you and Mary Ball for the clear and concise instructions.

Sincerely,

Taylor Mullaly

tmullaly@cox.net


Title: topic52
Post by: nassri on October 01, 2005, 11:57:16 pm
thanks


Title: Useful examination mean
Post by: JANUSZ on December 30, 2005, 03:06:13 am
Dear Mr. Hwang,

I have found your Vernier caliper program very useful for checking machine operator knowledge of use the caliper. Also we've organized a measurement training for our production personnel in which we had used the program to check their skills. Thank you very much for your efforts in spreading the physics all over the world!

Kind regards

Janusz Ciesla
MSc, Mech. Eng.
ULTRATECH
POLAND
www.ultratech.pl


Title: Cool venier caliper
Post by: JonathanCMZ on February 06, 2006, 07:25:03 pm
COOL! anyway i never sorta use it in my home, still trying to dowwnload java applet, anyway, i am from bowen secondary school in singapore and my teacher show me how to use it, i found it usefull.  btw u got a good good forum too. Keep up the good work. Trying to figure up what rong wif the applet downloader, any suggestion?


Title: topic52
Post by: JonathanCMZ on February 06, 2006, 07:38:03 pm
w00t! i got it all sort out! SEEM like there a programm on this forum call java platform, downloaded it, and thx everyone, i dunno what u did -.-'''


Title: AYUDA
Post by: LUPITA on September 14, 2006, 12:48:17 pm

Me dirijo a usted solicitandole información acerca de este interesantisimo applet que nos representa un vernier y me informa de una forma completamente didactica ,su manejo.

Actualmente, mi hija tiene interes por aprender el uso de esta herramienta aun cuando se encuentra en educacion básica y no encuentro la forma de hacerle llegar este conocimeinto.

Por lo que el programa referido es lo mejor que he encontrado, informeme cual es el precio de este apple y si necesito algun tipo de licencia para usarlo con mi hija y con quien  necesite esta informacion



Title: Re: Vernier
Post by: tomryan on May 10, 2007, 06:22:46 pm
wow weeeeeeeee  ;D
this is fantastic!!!!!!!!!!!!!!!!!
it helped me so so much in my coursework, thank you so much
your my hero  ;D ;D ;D ;D ;D


Title: Re: Vernier
Post by: Barie on May 16, 2007, 12:35:42 pm
Dear Mr Fu-Kwun Hwang,
Thank you for allowing me to use the vernier applet off-line. This and some of your other items are very helpful in teaching me to use the equipment, I will let others who are interested in physics to view your site and enjoy playing with the tools.
regards
Barrie


Title: Re: Vernier
Post by: Fu-Kwun Hwang on May 18, 2007, 11:50:57 pm
You are welcomed! I hope you can enjoy the fun of physics while playing with those java simulations!  ;)


Title: Re: Vernier
Post by: Denzel on July 01, 2007, 08:53:34 pm
Hello ,I want to read  about the Vernier scale  and how to read the measurements. Tahnks Denzel


Title: Re: Vernier
Post by: Sivasayanth on July 14, 2007, 11:07:06 am
i have studied how to handle vernier meter . I'm happy now . thank you very much prof :)


Title: Re: Vernier
Post by: Fu-Kwun Hwang on July 14, 2007, 02:09:53 pm
You are welcomed! I am happy that you do really learn something from this web site.  :D


Title: Re: Vernier
Post by: matthew on August 09, 2007, 08:28:11 pm
Hi Mr Hwang,
I have used your vernier calipers very interesting and i find that is excellent.and i would like you to include micrometer too.
Thanks

Regards
matthew ::) :) :)


Title: Re: Vernier
Post by: Fu-Kwun Hwang on August 10, 2007, 08:59:34 am
Micrometer sleeve (with vernier) reading 5.783mm from http://en.wikipedia.org/wiki/Micrometer


Title: Re: Vernier
Post by: Fu-Kwun Hwang on August 10, 2007, 09:17:44 am
Micrometer thimble reading 5.78mm


Title: Re: Vernier
Post by: Fu-Kwun Hwang on August 10, 2007, 11:58:03 pm
Hi Mr Hwang,
I have used your vernier calipers very interesting and i find that is excellent.and i would like you to include micrometer too.
Thanks

Regards
matthew ::) :) :)
I have created an applet for micrometer (http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=502.0), and I hope it is what you want. Because you did not describe it in detail.
Any suggestion for improvement will be highly appreciated!


Title: Re: Vernier
Post by: tomryan on September 21, 2007, 08:12:22 pm
Zzzzzzzzzzzzzz

Neatoness

This java application tickles my taste buds. How long did it take to construct?


Title: Re: Vernier
Post by: shuntu on October 01, 2007, 10:43:06 am
amazing work! very useful. keep up the good work!   8)


Title: Re: Vernier
Post by: yasmine on October 12, 2007, 08:15:03 pm
it"s great topic about measuring instrument vernier caliper &micrometer
but i do not know how do know the scale value with my self


Title: Re: Vernier
Post by: Fu-Kwun Hwang on October 12, 2007, 09:00:47 pm
The scale on Vernier calipers (or micrometer) was designed in a way that it is easy to read the value.
This applet was design to help you read the value. I am sorry that you did not understand it.

Use the following snap shot image of the applet as an example.

1. You will find 0. pass the 9.0 mm line so the distance is more than 9.0 mm
2. Find the line which is aligned for both rulers. Read the number from the moving ruler, which correspond to .7 mm
3. Add those two together, so you have 9.7 mm.

Is it simple enough. It is similar for the micro-meter. Use the above image as an example:
You will find the distance is more than 5.5 mm and you will find .28mm from the rotating part.
So the final result is 5.5mm+0.28mm=5.78mm


Title: Re: Vernier
Post by: yasmine on October 17, 2007, 02:29:55 am
th for ur great efectors but i know how read the value from vernier calipar  or micrometer but i do't know there scale value
for ur ex in micrometer it have scale value .01from mm those my qustion
how i know .01(scale value)???


Title: Re: Vernier
Post by: Fu-Kwun Hwang on October 17, 2007, 08:33:07 am
When the rotating part rotate one complete cycle, it move 0.5 mm distance (the main scale increase by 0.5mm).
And there are 50 divisions for one complete cycle. So the smaller scale (one division) is 0.5/50=0.01 mm


Title: Re: Vernier
Post by: yasmine on October 18, 2007, 06:36:48 am
 ;Dthanks alot for ur reply but what about vernier calipar scale value ::)


Title: Re: Vernier
Post by: Fu-Kwun Hwang on October 18, 2007, 04:30:31 pm
The total length for the scale of the moving part is 19mm.
And it was divided by 10 divisions, so each division is 1.9mm which is less than two units in the main scale by 2.0-1.9mm=0.1mm.

Think of the above system in the following way:
Assume every 2.0 mm in the main part is replaced by a 2.0mm block.
And every 1 division in the moving part is replace by a 1.9mm block.
If the first block of both part are aligned at the right, then there is a 0.1 mm displacement at the left.
If the second block of both part are aligned at the right, then there is a 0.2mm displacement at the left.
...
I hope you can understand what I mean.
Anyway, I am going to create another java applet to show it.

Drag the slider to change the alignment points. Assume the top block is 2.0mm each, and the lower one is 1.9mm each (total length =1.9mm*10=19mm)



Title: Re: Vernier
Post by: yasmine on October 18, 2007, 10:05:48 pm
thank u for ur great Information and ur helps ,so if u know good site for measurment I should be grateful :D


Title: Re: Vernier
Post by: yasmine on October 28, 2007, 09:26:26 pm
 ??? ::)


Title: Re: Vernier
Post by: may on September 02, 2008, 02:40:03 pm
 thank you for your simulation ;D


Title: Re: Vernier
Post by: lookang on September 03, 2008, 10:21:07 am
thank u for ur great Information and ur helps ,so if u know good site for measurment I should be grateful :D

measurements?

well, i have been posting in my own forum, all the good resources i come across :)
key in a search "measurements"
(http://www.phy.ntnu.edu.tw/ntnujava/index.php?action=dlattach;topic=52.0;attach=272)
http://66.7.205.91/~lookangc/index.php?topic=29.msg1466#msg1466

you can find vectors, Vectors Addition, many interactive learning tools i found all over the net.

need to register to view ! :(



Title: Re: Vernier
Post by: erc8888 on October 10, 2008, 02:01:23 am
Thx for the great program.  I'm in my first semester taking electromechanical classes at a tech school and we have had limited time in lab to get familiar with calipers and vernier scales.  This program really helped reinforce what I learned in lab and it really showed come test time.  thx again


Title: Re: Vernier
Post by: lookang on October 10, 2008, 04:55:02 am
there is a similar one made in EJS over http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=684.msg2452#msg2452 (http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=684.msg2452#msg2452). Made/customised with many thanks to Prof Hwang :)


enjoy
(http://www.phy.ntnu.edu.tw/ntnujava/index.php?action=dlattach;topic=52.0;attach=301)
http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=684.msg2452#msg2452


Title: Re: Vernier
Post by: mnarat on December 26, 2008, 06:45:55 pm
Thank u very very much ,your projects help me very much in learning and teaching


Title: Re: Vernier
Post by: jorepereira on January 21, 2009, 10:33:14 pm
Excellent website for learning how to measure with vernier. It is very helpful for all. Thanks and congratulations!  ;D
-*-


Title: Re: Vernier
Post by: lookang on February 04, 2009, 10:35:32 pm
http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=684.msg3445#new
Vernier calipers applet with many options for smallest division


normally there is an mark for the smallest scale, like in this applet
(http://www.phy.ntnu.edu.tw/ntnujava/index.php?action=dlattach;topic=684.0;attach=650;image)
can you see?


Title: Re: Vernier
Post by: lookang on May 07, 2009, 09:49:24 pm
maybe this one is clearer?
http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=684.0


Title: Re: Vernier
Post by: lookang on May 12, 2009, 10:07:06 pm
this is a Ejs version of the vernier caliper
http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=684.0

it is by Fu-Kwun Hwang and lookang


Title: Re: Vernier
Post by: johnytin on September 22, 2009, 04:16:23 pm
I am wondering if anyone has had any experience using Vernier's LabPro data collection device with Linux.

While I am familiar with their Linux page, I do not understand most of it. I am experienced with using the LabPro on Windows and Mac, but I would really like to know if anyone has successfully used it with Linux in a classroom environment.


Title: Re: Vernier
Post by: PriteHome on November 16, 2009, 12:53:38 pm
I have found that your program are very useful I have to say Thank you for your efforts. ;)


Title: Re: Vernier
Post by: Fu-Kwun Hwang on November 16, 2009, 05:27:41 pm
Iam glad to hear that you find it useful!  :D
Suggestion to improve the applet will be highly appreciated!


Title: Re: Vernier
Post by: dennisseda on July 30, 2011, 07:37:58 pm
Dr Hwang,

I'm very thankful you have made all these simulations. As a secondary school physics teacher, i find the apps very useful for both demos and exam setting.

On another thing, the Creative Commons license basically says I can share these apps, as long as you are acknowledged. I would like to post your apps into my website, as to help make it more interactive for the students I teach. Your approval would be very much appreciated.

Thank you very much!



Title: Re: Vernier
Post by: Fu-Kwun Hwang on July 30, 2011, 09:21:35 pm
You are welcomed to distribute simulations I have created. You can even modify the simulation if EJS has been installed in your computer.
Enjoy the fun of physics!


Title: Re: Vernier
Post by: saad313 on May 17, 2012, 06:03:25 pm
Thanks alot it was a real help , as a student of industrial manufacturing engineering with the subject of dimentional metrology it is really important to be clear in the concept so beautifully explained here. thanks again !!!!!!


Title: Re: Vernier
Post by: marcasitejewelry on August 22, 2012, 10:17:18 am
Thank you
it helped me so so much in my coursework, thank you so much


Title: Re: Vernier
Post by: koclup1580 on December 29, 2012, 01:15:58 pm
thank you.