Browse the glossary using this index

Special | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | ALL

Page: (Previous)   1  2  3  4  5  6  7  8  9  10  (Next)
  ALL

D

DELTA

A three-phase connection in which windings are connected end-to-end, forming a closed loop that resembles the Greek letter delta. A separate phase wire is then connected to each of the three junctions [5].


DEMODULATION

The removal of intelligence from a transmission medium [12].

DEMODULATOR

A circuit used in servosystems to convert an ac signal to a dc signal. The magnitude of the dc output is determined by the magnitude of the ac input signal, and its polarity is determined by whether the ac input signal is in or out of phase with the ac reference voltage [15].


DeMORGAN'S THEOREM

A theorem which states that the inversion of a series of AND applications is
equal to the same series of inverted OR applications, or the inversion of a series of OR applications is equal to the same series of inverted AND applications.


DENSITY

(1) The compactness of a substance. (2) Mass per unit volume [10].

DEPLETION REGION

The region in a semiconductor where essentially all free electrons and holes
have been swept out by the electrostatic field which exists there [7].


DEPOT-LEVEL MAINTENANCE (SM&R CODE D)

Supports SM&R Code I and SM&R Code O activities through extensive shop facilities and equipment and highly skilled personnel [14].


DESIGNATION

Operational phase of a fire-control or track radar during which the radar is directed to the general direction of a desired target [18].


DETECTION

The separation of low-frequency (audio) intelligence from the high-frequency carrier [17].

DETECTOR

A mixer or converter in a superheterodyne receiver [18].


Page: (Previous)   1  2  3  4  5  6  7  8  9  10  (Next)
  ALL