Go Premium for a chance to win a PS4. Enter to Win

x
?
Solved

What does calibration mean?

Posted on 2010-11-10
3
Medium Priority
?
1,016 Views
Last Modified: 2012-05-10
Following is a paragraph from introductory University Physics Chapter.

Several radio stations around the world broadcast a signal whose frequency is linked directly to the atomic clocks.
This signal is the time standard, and any time measuring equipment you use was calibrated from this time standard.

What does calibrated mean in above paragraph?
0
Comment
Question by:naseeam
3 Comments
 
LVL 14

Assisted Solution

by:Muhammad Ahmad Imran
Muhammad Ahmad Imran earned 880 total points
ID: 34103876
It means it has been tested against  instruments or measures know to be  true or accurate.  In other words you test it against other instruments  that are used to measure accuracy.
 
 _________________________________
 
 Calibration refers to the process of verification that an instrument is  within its designated accuracy. This is usually accomplished by formal  comparison with a standard which is traceable to national standards  (NIST in the USA) and certified reference materials.
0
 
LVL 84

Accepted Solution

by:
Dave Baldwin earned 1120 total points
ID: 34103877
Calibration is the process of aligning an instrument to a standard.  In this case, test equipment that measures time and frequency has a local oscillator that signals are compared against.  The local oscillator is adjusted to match the reference frequency coming from the atomic clocks by way of the radio stations.  WWV in Boulder, Colorado in the US is one such station.
0
 
LVL 1

Author Closing Comment

by:naseeam
ID: 34104090
Very nice explanations.
0

Featured Post

New feature and membership benefit!

New feature! Upgrade and increase expert visibility of your issues with Priority Questions.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

How to Win a Jar of Candy Corn: A Scientific Approach! I love mathematics. If you love mathematics also, you may enjoy this tip on how to use math to win your own jar of candy corn and to impress your friends. As I said, I love math, but I gu…
We are taking giant steps in technological advances in the field of wireless telephony. At just 10 years since the advent of smartphones, it is crucial to examine the benefits and disadvantages that have been report to us.
This is a video describing the growing solar energy use in Utah. This is a topic that greatly interests me and so I decided to produce a video about it.
Although Jacob Bernoulli (1654-1705) has been credited as the creator of "Binomial Distribution Table", Gottfried Leibniz (1646-1716) did his dissertation on the subject in 1666; Leibniz you may recall is the co-inventor of "Calculus" and beat Isaac…

886 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question