Sunday, October 23, 2011

RTE 1025: My First Blog

RTE 1025: My First Blog: Good afternoon my FAVORITE Seniors! I found a few videos that I thought you may like to view. Please take a few moments to view and comme...

Hi Mrs. Wildenberg, I'm viewing your blogspot and wondering how you got the fish tank on here? I'll view the videos when I get a chance. Talk soon.

Sunday, October 9, 2011

Transformers, Generators, and Filaments for an X-Ray Machine

Transformers are electromagnetic devices that allow a voltage of alternating current to be changed. The voltage may be increased or decreased.  Two common types of transformers which are of importance to X-ray generation are step-up and step-down. Transformers are comprised of two sets of windings (coiled conductors) that are electrically isolated from each other. One set of windings is connected to a power supply and is known as the primaries. The other set of windings is connected to a load (in this case the X-ray tube) and is referred to as the secondary windings

The principle operation of a transformer is based on induction. When you pass current through a conductor, a magnetic field is established in and around the conductor. This magnetic field can be used to induce a voltage and current flows in a conductive material that is placed close by.