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GRAF [5 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2017-05-12

English

Subject field(s)
  • Security Devices
  • Building Hardware
  • Photoelectricity and Electron Optics
  • Electronic Devices
DEF

A solid-state photosensitive electron device in which use is made of the variation of the current-voltage characteristic as a function of incident radiation.

OBS

Mention of the qualifier "solid-state" in this definition implies that phototubes are excluded from it. The Modern Dictionary of Electronic(Rudolf F. Graf, 5th ed. 1977) states that "the term should not be used for a phototube, which is a vacuum tube and not a cell". However, these terms are, in fact, often used in a more general sense to designate all types of light-sensitive electronic devices. This record deals with the terms in their more restricted sense.

Key term(s)
  • light sensitive cell

French

Domaine(s)
  • Dispositifs de sécurité
  • Quincaillerie du bâtiment
  • Photo-électricité et optique électronique
  • Dispositifs électroniques
DEF

Cellule photo-électrique servant à la commande de dispositifs automatiques (ouverture d'une porte, par exemple).

OBS

photoélectrique : Cette graphie, puisée des Rectifications de l'orthographe recommandées par le Conseil supérieur de la langue française, est attestée dans le Petit Robert (2004).

Spanish

Campo(s) temático(s)
  • Dispositivos de seguridad
  • Artículos de ferretería para la construcción
  • Fotoelectricidad y óptica electrónica
  • Dispositivos electrónicos
Save record 1

Record 2 2013-10-01

English

Subject field(s)
  • Photoelectricity and Electron Optics
  • Semiconductors (Electronics)
  • Vacuum Tubes (Electronics)
DEF

A device that detects or measures electromagnetic radiation by generating a potential at a junction (barrier layer) between two types of material, upon absorption of radiant energy.

CONT

photovoltaic cell: A photovoltaic cell consists of a thin film of a semiconductor in contact with another appropriate material, usually a metal.

OBS

barrier-layer cell : The Modern Dictionary of Electronics, by R. E. Graf, Howard W. Sams Co., USA, 1977, p. 67, describes this as being a copper-cuprous oxide type of device, though there are, in fact, other types of barrier-layer cells.

Key term(s)
  • barrier layer cell
  • barrier layer photoelectric cell

French

Domaine(s)
  • Photo-électricité et optique électronique
  • Semi-conducteurs (Électronique)
  • Tubes et lampes (Électronique)
DEF

Tube photosensible utilisant l'effet photovoltaïque.

CONT

L'effet photovoltaïque se manifeste par l'apparition d'une force électromotrice au contact d'un métal et d'un semiconducteur. Cette f.e.m. est à peu près proportionnelle au flux lumineux incident. Les cellules photovoltaïques, peu sensibles, peu précises, d'inertie assez grande, ne nécessitent pas d'alimentation extérieure et sont employées dans les posemètres en photographie.

OBS

photopile : Peut désigner aussi une cellule à jonction pn.

Spanish

Campo(s) temático(s)
  • Fotoelectricidad y óptica electrónica
  • Semiconductores (Electrónica)
  • Tubos de vacío (Electrónica)
DEF

Instrumento utilizado para la medida de la energía radiante mediante el efecto fotovoltaico.

Save record 2

Record 3 2011-12-16

English

Subject field(s)
  • Racquet Sports
DEF

An exchange of hard-hitting balls between two players whose games are based on pure power and little finesse.

CONT

Steffi Graf survived a baseline slugfest Thursday night, powering her way past Mary Joe Fernandez 6-3, 6-4 and grabbing a spot in the semifinals of the WTA Tour championships.

PHR

To win a slugfest.

French

Domaine(s)
  • Sports de raquette

Spanish

Save record 3

Record 4 1996-05-29

English

Subject field(s)
  • General Vocabulary
CONT

You use "straight" to describe an action that you do or that happens without any break or interruption.

CONT

Monica Seles, co-seeded No. 1 with Graf, has a pain in her left shoulder that didn’t exist the last time she played here and collected her third straight title, in 1992.

French

Domaine(s)
  • Vocabulaire général
DEF

en se suivant exactement; [...] sans interruption

Spanish

Save record 4

Record 5 1995-11-23

English

Subject field(s)
  • Racquet Sports
CONT

On the women's side of the draw, Steffi Graf easily defeated Martina Hingis.

Key term(s)
  • women's side

French

Domaine(s)
  • Sports de raquette
CONT

Dans le tournoi féminin, où aucune nouvelle tête de série n'est tombée, Mary Pierce (numéro 12) est la seule Française à s'être qualifiée pour le tour suivant.

Spanish

Save record 5

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