About the Book
This book consists of articles from Wikia or other free sources online. Pages: 44. Chapters: Ampere's Law, Amplitude-shift keying, Antenna Array, Attenuation, Basic Electronics, Bernoulli Effect, Biomedical Engineering Technology Portal, Biot-Savart's Law, Brewster's angle, Brillouin scattering, Classical electrodynamics, Coulomb's Law, Diathermy, EMC, EMI, Electric Potential, Electromagnetic radiation, Electromagnetism, Electrostatic Fields, Faraday's Law, Fermat's principle, Formulas, Free space, Frequency, Frequency-shift keying, Frequency domain, Gamma rays, Gauss's Law, Gaussian beam propagation, Hertzian Dipole, Impedance Matching, Index of refraction, Infrared, Kirchhoff's Current Law, Kirchhoff's Voltage Law, Laser technology, Lasers, Law of Reflection, Lenzs law, Light, Meters per second, Mie scattering, Noise, Noise Figure, Noise Temperature, Novaya Zemlya effect, Ohm's Law, Optical physics, Optics, Photoelectric effect, Polarization, Potential difference, Propagation constant, Quantum mechanics, Raman scattering, Rayleigh scattering, Reflection, Snell's law, Thevenin's Theorem, The Force, Thomson scattering, Time-division multiplexing, Time domain, Tyndall effect, Ultraviolet, Visible light. Excerpt: In physics and optics, the Abbe number, also known as the V-number or constringence of a transparent material, is a measure of the material's dispersion (variation of refractive index with wavelength) in relation to the refractive index. It is named after Ernst Abbe (1840-1905), the German physicist who defined it. Amplitude-shift keying (ASK) is a form of modulation that represents digital data as variations in the amplitude of a carrier wave. The amplitude of an analog carrier signal varies in accordance with the bit stream (modulating signal), keeping frequency and phase constant. The level of amplitude can be used to represent binary logic 0s and 1s. We can think of a carrier signal as an ON or OFF switch. In the modulated signa...
