johnson noise
71Honorary John St. John Johnson — Proben zu Give Peace a Chance (1969) John Winston Lennon (später John Winston Ono Lennon), MBE (* 9. Oktober 1940 in Liverpool, England; † 8. Dezember 1980 in New York …
72Johnsonnoise — Johnson noise n. See thermal noise. [After John Bertrand Johnson (1887 1970), Swedish born American physicist.] * * * …
73Kish cypher — The Kish cypher [ [http://technology.newscientist.com/channel/tech/mg19426055.300 Noise keeps spooks out of the loop tech 23 May 2007 New Scientist Tech ] ] , is a classical technique for maintaining secure communications without resort to the… …
74Langevin equation — In statistical physics, a Langevin equation (Paul Langevin, 1908) is a stochastic differential equation describing the time evolution of a subset of the degrees of freedom. These degrees of freedom typically are collective (macroscopic) variables …
75JN — may mean: * Jan Mayen: FIPS PUB 10 4 territory code. * Johnson Nyquist noise (also thermal noise, Johnson noise or Nyquist noise), the noise generated by the random thermal motion of the electric current carriers inside an electrical conductor. * …
76Nyquist, Harry — ▪ American physicist born Feb. 7, 1889, Nilsby, Sweden died April 4, 1976, Harlingen, Texas, U.S. American physicist and electrical and communications engineer, a prolific inventor who made fundamental theoretical and practical… …
77Minimum detectable signal — (MDS) in a radio receiver is the smallest signal power that can be received at its input, processed by its conversion chain and demodulated by the receiver, resulting in usable information at the demodulator output. Contents 1 Equation 2… …
78Photomultiplier — tubes (photomultipliers or PMTs for short), members of the class of vacuum tubes, and more specifically phototubes, are extremely sensitive detectors of light in the ultraviolet, visible, and near infrared ranges of the electromagnetic spectrum.… …
79Loop antenna — A shortwave loop antenna A loop antenna is a radio antenna consisting of a loop (or loops) of wire, tubing, or other electrical conductor with its ends connected to a balanced transmission line. Within this physical description there are two very …
80Cathode ray tube — Cutaway rendering of a color CRT: 1. Three Electron guns (for red, green, and blue phosphor dots) 2. Electron beams 3. Focusing coils 4. Deflection coils 5. Anode connection 6. Mask for separating beams for red,… …
