- reciprocity constant
- коэффициент взаимности (отношение чувствительности электроакустического преобразователя в режимах микрофона и громкоговорителя)
The New English-Russian Dictionary of Radio-electronics. F.V Lisovsky . 2005.
The New English-Russian Dictionary of Radio-electronics. F.V Lisovsky . 2005.
Reciprocity (electromagnetism) — This page is about reciprocity theorems in classical electromagnetism. See also Reciprocity (mathematics) for unrelated reciprocity theorems, and Reciprocity for more general usages of the term. In classical electromagnetism, reciprocity refers… … Wikipedia
reciprocity law — noun : a statement in photography: a constant density is obtained on a photographic material if the product of the intensity of light and the time for which it acts is a constant … Useful english dictionary
Measurement microphone calibration — In order to take a scientific measurement with a microphone, its precise sensitivity must be known (in volts per Pascal). Since this may change over the lifetime of the device, it is necessary to regularly calibrate measurement microphones. This… … Wikipedia
Radiation pattern — Three dimensional antenna radiation patterns. The radial distance from the origin in any direction represents the strength of radiation emitted in that direction. The top shows the directive pattern of a horn antenna, the bottom shows the… … Wikipedia
international relations — a branch of political science dealing with the relations between nations. [1970 75] * * * Study of the relations of states with each other and with international organizations and certain subnational entities (e.g., bureaucracies and political… … Universalium
ethics — /eth iks/, n.pl. 1. (used with a sing. or pl. v.) a system of moral principles: the ethics of a culture. 2. the rules of conduct recognized in respect to a particular class of human actions or a particular group, culture, etc.: medical ethics;… … Universalium
mathematics — /math euh mat iks/, n. 1. (used with a sing. v.) the systematic treatment of magnitude, relationships between figures and forms, and relations between quantities expressed symbolically. 2. (used with a sing. or pl. v.) mathematical procedures,… … Universalium
Optics — For the book by Sir Isaac Newton, see Opticks. Optical redirects here. For the musical artist, see Optical (artist). Optics includes study of dispersion of light. Optics is the branch of … Wikipedia
Science of photography — refers to the use of science, such as chemistry and physics, in all aspects of photography. This applies to the camera, its lenses, physical operation of the camera, electronic camera internals, and the process of developing film in order to take … Wikipedia
cañada — /keuhn yah deuh, yad euh/, n. Chiefly Western U.S. 1. a dry riverbed. 2. a small, deep canyon. [1840 50; < Sp, equiv. to cañ(a) CANE + ada n. suffix] * * * Canada Introduction Canada Background: A land of vast distances and rich natural resources … Universalium
Canada — /kan euh deuh/, n. a nation in N North America: a member of the Commonwealth of Nations. 29,123,194; 3,690,410 sq. mi. (9,558,160 sq. km). Cap.: Ottawa. * * * Canada Introduction Canada Background: A land of vast distances and rich natural… … Universalium