Amplitude Modulation Theory: In Amplitude Modulation Theory, the amplitude of a carrier signal is varied by the modulating voltage, whose frequency is invariably lower than that of the carrier. In…
Noise Figure in Communication System: The Noise Figure in Communication System are namely, 1.Signal to Noise Ratio: The calculation of the equivalent noise resistance of an amplifier, receiver or device may…
Internal Noise in Communication System: Under the heading of Internal Noise in Communication System, we discuss noise created by any of the active or passive devices found in receivers. Such…
External Noise in Communication System: The various forms of External Noise in Communication System created outside the receiver are namely 1. Atmospheric Noise, 2. Extraterrestrial Noise, Solar noise Cosmic noise…
Temperature Control System: Before going to study the temperature control system, let us see the block diagram of microprocessor based process Temperature Control System. It is capable of controlling more…
Sensors and Transducers: The definition of Sensors and Transducers are follows, The input quantity for most instrumentation systems is nonelectrical. In order to use electrical methods and techniques for measurement, the…
Solid State Relay Interfacing: To avoid the problems of mechanical relays, Solid State Relay Interfacing are used. In this triac is used as a switching element and isolation is provided…
Electromagnetic Interference: To control ON/OFF operation of ac devices we can use electromagnetic relay. This relay has both normally open and closed contacts. When a current is passed through the…