Computer Program Detail Page
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
AAAS Benchmark Alignments (2008 Version)
3. The Nature of Technology
3B. Design and Systems
11. Common Themes
AAAS Benchmark Alignments (1993 Version)
12. HABITS OF MIND
B. Computation and Estimation
C. Manipulation and Observation
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:
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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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