Fu-Kwun Hwang
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Reply #30 on: October 12, 2007, 09:00:47 pm » posted from:Taipei,T\'ai-pei,Taiwan |
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 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
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yasmine
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Reply #31 on: October 17, 2007, 02:29:55 am » |
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 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) 
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Fu-Kwun Hwang
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Reply #32 on: October 17, 2007, 08:33:07 am » |
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 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
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yasmine
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Reply #33 on: October 18, 2007, 06:36:48 am » posted from:Alexandria,Al Iskandariyah,Egypt |
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 ;Dthanks alot for ur reply but what about vernier calipar scale value 
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« Last Edit: October 18, 2007, 06:38:53 am by yasmine »
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Fu-Kwun Hwang
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Reply #34 on: October 18, 2007, 04:30:31 pm » posted from:Taipei,T'ai-pei,Taiwan |
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Registed user can get files related to this applet for offline access.Problem viewing java?Add http://www.phy.ntnu.edu.tw/ to exception site list If java program did not show up, please download and install latest Java RUN TIMEThe 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) Registed user can get files related to this applet for offline access.Problem viewing java?Add http://www.phy.ntnu.edu.tw/ to exception site list If java program did not show up, please download and install latest Java RUN TIME
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yasmine
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Reply #35 on: October 18, 2007, 10:05:48 pm » posted from:Alexandria,Al Iskandariyah,Egypt |
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 thank u for ur great Information and ur helps ,so if u know good site for measurment I should be grateful 
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yasmine
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Reply #36 on: October 28, 2007, 09:26:26 pm » |
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may
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Reply #37 on: September 02, 2008, 02:40:03 pm » |
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 thank you for your simulation 
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lookang
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Reply #38 on: September 03, 2008, 10:21:07 am » posted from:Singapore,,Singapore |
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 thank u for ur great Information and ur helps ,so if u know good site for measurment I should be grateful  measurements? well, i have been posting in my own forum, all the good resources i come across  key in a search "measurements" http://66.7.205.91/~lookangc/index.php?topic=29.msg1466#msg1466you can find vectors, Vectors Addition, many interactive learning tools i found all over the net. need to register to view ! 
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« Last Edit: September 03, 2008, 10:24:28 am by lookang »
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erc8888
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Reply #39 on: October 10, 2008, 02:01:23 am » |
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 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
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lookang
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Reply #40 on: October 10, 2008, 04:55:02 am » |
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« Last Edit: October 10, 2008, 04:58:09 am by lookang »
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mnarat
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Reply #41 on: December 26, 2008, 06:45:55 pm » |
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 Thank u very very much ,your projects help me very much in learning and teaching
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jorepereira
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Reply #42 on: January 21, 2009, 10:33:14 pm » |
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 Excellent website for learning how to measure with vernier. It is very helpful for all. Thanks and congratulations!  -*-
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lookang
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Reply #44 on: May 07, 2009, 09:49:24 pm » posted from:Singapore,,Singapore |
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« Last Edit: May 07, 2009, 09:56:56 pm by lookang »
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johnytin
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Reply #46 on: September 22, 2009, 04:16:23 pm » posted from:Phagwara,Punjab,India |
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 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.
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PriteHome
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Reply #47 on: November 16, 2009, 12:53:38 pm » posted from:Bangkok,Krung Thep,Thailand |
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 I have found that your program are very useful I have to say Thank you for your efforts. 
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Fu-Kwun Hwang
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Reply #48 on: November 16, 2009, 05:27:41 pm » posted from:Taipei,T\'ai-pei,Taiwan |
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 Iam glad to hear that you find it useful!  Suggestion to improve the applet will be highly appreciated!
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dennisseda
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Reply #49 on: July 30, 2011, 07:37:58 pm » posted from:Bandung,Jawa Barat,Indonesia |
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 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!
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Fu-Kwun Hwang
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Reply #50 on: July 30, 2011, 09:21:35 pm » posted from:Taipei,T'ai-pei,Taiwan |
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 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!
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saad313
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Reply #51 on: May 17, 2012, 06:03:25 pm » posted from:Islamabad,Islamabad,Pakistan |
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 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 !!!!!!
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marcasitejewelry
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Reply #52 on: August 22, 2012, 10:17:18 am » posted from:Bangkok,Krung Thep,Thailand |
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 Thank you it helped me so so much in my coursework, thank you so much
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koclup1580
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Reply #53 on: December 29, 2012, 01:15:58 pm » posted from:,,Satellite Provider |
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 thank you.
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