Tuesday, June 7, 2011

Digital Meters




1. the viewing angle can affect the observer's perception of which numbers the needle points to on analouge while digital is a set number
2.Digital meters, which use circuitry to measure quantities, can be nearly any practical size. This feature makes them potentially more portable than their analog counterparts
3.A digital meter is calibrated by exposing it to a neutral, or zero-level, signal and then setting the readout to zero cauing it not to wear out
4.Electronics-related digital meters have built-in overload protection that is uncommon in analog meters. The components of an analog meter will burn out if exposed to too strong an electrical load. A protected digital meter is protected from the same load.
5, The are in a sense idiot proof and anyone without training can figure them out



Analouge Meters

1. Analog has an infinite number of positions it can lay on the scale
2.Digital display will move slower then an analog display
3. When making adjustments where peaks or dips have to be made a digital meter will make the job almost imposable

Sunday, May 15, 2011

Health and safety presentation

Here is my presentation when uploaded into google docs the file dosnt come out as how i made it would you be able to give you my email so i can send the direct word file ?

Sunday, May 1, 2011

My Summary

A loose electron within a conducter will travel randomly to loose spaces in other atoms valence shells untill a electromotive force is applied this will cause the electrons movement to be directed towards the positive pole causing current