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written by Fu-Kwun Hwang
edited by Loo Kang Wee and Wolfgang Christian
This interactive simulation gives students practice in the operation and the physical parts of a real micrometer, a measuring device that employs a screw to amplify distances that are too small to measure easily. The accuracy of a micrometer derives from the accuracy of the thread that is at its heart. The basic operating principle of a micrometer is that the rotation of an accurately made screw can be directly and precisely correlated to a certain amount of axial movement (and vice-versa), through the constant known as the screw's lead.

The Micrometer model was created using the Easy Java Simulations (EJS) modeling tool.  It is distributed as a ready-to-run (compiled) Java archive.  Double click the ejs_ntnu_Micrometer.jar file to run the program (Java must be installed).

Please note that this resource requires at least version 1.5 of Java (JRE).
View the source code document attached to this resource
Subjects Levels Resource Types
General Physics
- Equipment
= Mechanical Equipment
- Measurement/Units
- High School
- Lower Undergraduate
- Middle School
- Upper Undergraduate
- Instructional Material
= Interactive Simulation
= Model
Appropriate Courses Categories Ratings
- Physical Science
- Physics First
- Conceptual Physics
- Algebra-based Physics
- AP Physics
- Activity
- New teachers
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Intended Users:
Learner
Educator
Format:
application/java
Access Rights:
Free access
License:
This material is released under a GNU General Public License Version 3 license.
Rights Holder:
Fu-Kwun Hwang
Keywords:
caliper, machine tool, screw gauge
Record Cloner:
Metadata instance created September 10, 2009 by Wolfgang Christian
Record Updated:
June 10, 2014 by Andreu Glasmann
Last Update
when Cataloged:
September 10, 2009
Other Collections:

currently, the simulation does not random-size an object, do u want that feature?

Author: lookang
Posted: October 23, 2011 at 11:34PM

question:
currently, the simulation does not random-size an object, do u want that feature?

quote:
Unit Title: Applying Measurement in Physics

This is a really nice interactive simulation to give students virtual practice in using a micrometer, a device for doing ultra-precise measurement down to the level of 1 micrometer. Each time the "reset" button is pressed, a random-size object appears on screen. Students use sliders to move the object into place, perform the measurement, and check the accuracy of their reading.:
unquote:

thank you for kind comments.
i keep updating the simulation here
http://weelookang.blogspot.com/2010/06/ejs-open-source-micrometer-java-applet.html
I think i will add the new feature :)

» reply

Response from Editor to Lookang's post

Author: Caroline Hall-Managing Editor
Posted: Oct 24, 2011 at 2:42AM

> On Oct 23, 2011, lookang posted:
>
> question:
> currently,
> the simulation does not random-size an object, do
> u want that feature?
>
> quote:
> Unit Title: Applying
> Measurement in Physics
>
> This is a really nice interactive
> simulation to give students virtual practice in using
> a micrometer, a device for doing ultra-precise measurement
> down to the level of 1 micrometer. Each time the "reset"
> button is pressed, a random-size object appears on
> screen. Students use sliders to move the object into
> place, perform the measurement, and check the accuracy
> of their reading.:
> unquote:
>
> thank you for kind comments.
>
> i keep updating the simulation here
> http://weelookang.blogspot.com/2010/06/ejs-open-source-micrometer-java-applet.html
> I
> think i will add the new feature :)
>
>Hello Lookang,
>My apologies for the incorrect description within our Units interface. Yes, it would be great if >the simulation random-sized the object to be measured. If you are planning to make this >change, I will leave the description as it is.
>Many thanks,
>Caroline Hall, Managing Editor, ComPADRE

» reply

Re: Response from Editor to Lookang's post

Author: lookang
Posted: Oct 24, 2011 at 12:03PM

> On Oct 24, 2011, Caroline Hall-Managing Editor posted
>
> >
> >Hello Lookang
>
> >My apologies for the incorrect description within
> our Units interface. Yes, it would be great if >the
> simulation random-sized the object to be measured.
> If you are planning to make this >change, I will leave
> the description as it is.
> >Many thanks,
> >Caroline
> Hall, Managing Editor, ComPADRE


Hi Caroline! we met before! http://weelookang.blogspot.com/2010/07/personal-review-w20-computer-modeling.html

done!
24 October 2011

added a magnify ability to draw students attention to the lines based on codes from http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=2268.0 by Fu-Kwun Hwang
randomize the size of the black object each time to simulation is reset based on a request on physics front http://www.thephysicsfront.org/items/detail.cfm?ID=9422

enjoy!
http://weelookang.blogspot.com/2010/06/ejs-open-source-micrometer-java-applet.html
http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=683.0

» reply

Post a new comment on this item

AAAS Benchmark Alignments (2008 Version)

3. The Nature of Technology

3B. Design and Systems
  • 9-12: 3B/H6. To reduce the chance of system failure, performance testing is often conducted using small-scale models, computer simulations, analogous systems, or just the parts of the system thought to be least reliable.

11. Common Themes

11B. Models
  • 6-8: 11B/M2. Mathematical models can be displayed on a computer and then modified to see what happens.

AAAS Benchmark Alignments (1993 Version)

12. HABITS OF MIND

B. Computation and Estimation
  • 12B (9-12) #9.  Consider the possible effects of measurement errors on calculations.
C. Manipulation and Observation
  • 12C (6-8) #3.  Read analog and digital meters on instruments used to make direct measurements of length, volume, weight, elapsed time, rates, and temperature, and choose appropriate units for reporting various magnitudes.

This resource is part of a Physics Front Topical Unit.


Topic: Measurement and the Language of Physics
Unit Title: Applying Measurement in Physics

This is a really nice interactive simulation to give students virtual practice in using a micrometer, a device for doing ultra-precise measurement down to the level of 1 micrometer. Each time the "reset" button is pressed, a random-size object appears on screen. Students use sliders to move the object into place, perform the measurement, and check the accuracy of their reading.

Link to Unit:
ComPADRE is beta testing Citation Styles!

Record Link
AIP Format
F. Hwang, Computer Program MICROMETER MODEL (2009), WWW Document, (http://www.compadre.org/Repository/document/ServeFile.cfm?ID=9422&DocID=1315).
AJP/PRST-PER
F. Hwang, Computer Program MICROMETER MODEL (2009), <http://www.compadre.org/Repository/document/ServeFile.cfm?ID=9422&DocID=1315>.
APA Format
Hwang, F. (2009). Micrometer Model [Computer software]. Retrieved November 25, 2014, from http://www.compadre.org/Repository/document/ServeFile.cfm?ID=9422&DocID=1315
Chicago Format
Hwang, Fu-Kwun. "Micrometer Model." http://www.compadre.org/Repository/document/ServeFile.cfm?ID=9422&DocID=1315 (accessed 25 November 2014).
MLA Format
Hwang, Fu-Kwun. Micrometer Model. Computer software. 2009. Java (JRE) 1.5. 25 Nov. 2014 <http://www.compadre.org/Repository/document/ServeFile.cfm?ID=9422&DocID=1315>.
BibTeX Export Format
@misc{ Author = "Fu-Kwun Hwang", Title = {Micrometer Model}, Month = {September}, Year = {2009} }
Refer Export Format

%A Fu-Kwun Hwang
%T Micrometer Model
%E Loo Kang Wee
%E Wolfgang Christian, (eds)
%D September 10, 2009
%U http://www.compadre.org/Repository/document/ServeFile.cfm?ID=9422&DocID=1315
%O application/java

EndNote Export Format

%0 Computer Program
%A Hwang, Fu-Kwun
%D September 10, 2009
%T Micrometer Model
%E Wee, Loo Kang
%E Christian, Wolfgang
%8 September 10, 2009
%U http://www.compadre.org/Repository/document/ServeFile.cfm?ID=9422&DocID=1315


Disclaimer: ComPADRE offers citation styles as a guide only. We cannot offer interpretations about citations as this is an automated procedure. Please refer to the style manuals in the Citation Source Information area for clarifications.

Citation Source Information

The AIP Style presented is based on information from the AIP Style Manual.

The APA Style presented is based on information from APA Style.org: Electronic References.

The Chicago Style presented is based on information from Examples of Chicago-Style Documentation.

The MLA Style presented is based on information from the MLA FAQ.

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Micrometer Model:

Is Based On Easy Java Simulations Modeling and Authoring Tool

The Easy Java Simulations Modeling and Authoring Tool is needed to explore the computational model used in the Micrometer Model.

relation by Wolfgang Christian

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