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View Resource Engineer Girl

This is a website dedicated to girls and women that are interested in technology and engineering. The primary areas of interests for this site are: Medicine, Space, Environment, and Communications.

View Resource Wireless Communication

This quicktime animation examines the basics in wireless communication. Wireless communication has become pervasive in everyday life, providing convenience, piece of mind as well as emergency preparedness for its users through instant accessibility. The cell phone antenna is the link to the outside world. Designed to transmit as well as receive the RF signals, it efficiently couples the...

View Resource Servo Motor Diagramming and Wiring Lab (Instructor Guide)

This lab activity was completed as part of an NSF-funded externship program administered by the High Tech Workforce Initiative at Maricopa Community Colleges. Students will apply their knowledge of electrical power, servo control systems and servo motor properties to real-world scenarios. This lab is part of a servo systems course in an Industrial Operations Technology AAS program, using Amatrol...

View Resource Semiconductor Laser Diode

This is a quicktime presentation of a semiconductor laser diode. Laser diodes come in a compact transistor-like package with two or more electrical leads. Inside the package is the tiny semiconductor chip, containing the laser cavity. The chip contains a stack of epitaxial layers with different doping and compositions that provide optical and electrical confinement. Flatband Diagram Energy band...

View Resource Photodiode

This Quicktime presentation explains the basics of the photodiode. Some concepts that are explained include the photodiode package, photodiode illumination, internal connections, photodiode chip, photon absorption and electron-hole pair generation.

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