Photodetectors - Definition and Applications: Photodetectors are the semiconductor devices that can detect optical signals through electronic processes. The extension of coherent and incoherent light sources into the far-infrared region…
Voltage Level Detectors: Voltage Level Detectors - Operational amplifiers are often used in circuits in which the output is switched between the positive and negative saturation voltages, +Vo(sat) and -+Vo(sat). The…
Waveguide Mixers and Detectors: As we know that ordinary transistor and tube RF amplifiers eventually fail at microwave frequencies, because of greatly increased noise, compared with their low-frequency performance. Unless…
Detectors Types: The Detectors Types are as follows For low frequency, the most convenient detector is the vibration galvanometer. For ordinary laboratory work at frequencies up to a few 100 Hz,…
Optoelectronics Articles: What is Photoelectric Effect? When monochromatic light is incident on a clean surface of a material, then under certain conditions, electrons, also called photoelectrons, are emitted from the…
Modulation and Demodulation Articles: Basic Block Diagram of Communication System: The Basic Block Diagram of Communication System is shown in Fig. 22.1. The essential components of a communication system are…
Stator Overheating Protection: Stator Overheating Protection - Generally stator overheating is caused by sustained overloads or by cooling system failure. Overheating because of short-circuited laminations is very localized, and it…
Communication Channels Interview Questions and Answers: 1. What is optical communication? Ans. A system of communication in which optical carrier waves are used for transmission of information from one place to…