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ONDEMETRE [6 records]

Record 1 - external organization data 2021-03-18

English

Subject field(s)
  • Compartment – Nomenclature 4.0
  • Museums and Heritage (General)
OBS

wavemeter: an item in the "Electrical and Magnetic Tools and Equipment" class of the "Tools and Equipment for Science and Technology" category.

French

Domaine(s)
  • Tiroir – Nomenclature 4.0
  • Muséologie et patrimoine (Généralités)
OBS

ondemètre : objet de la classe «Outils et équipement électriques et magnétiques» de la catégorie «Outillage et équipement pour les sciences et la technologie».

Spanish

Save record 1

Record 2 2009-04-07

English

Subject field(s)
  • Radio Waves
  • Waveguides

French

Domaine(s)
  • Ondes radioélectriques
  • Guides d'ondes

Spanish

Save record 2

Record 3 2009-03-18

English

Subject field(s)
  • Waveguides
  • Radio Waves
OBS

transmission frequency meter; transmission wavemeter: terms standardized by the International Electrotechnical Commission (IEC).

French

Domaine(s)
  • Guides d'ondes
  • Ondes radioélectriques
OBS

fréquencemètre non dissipatif : terme normalisé par la Commission électrotechnique internationale (CEI).

Spanish

Save record 3

Record 4 2008-05-23

English

Subject field(s)
  • Electrical Measuring Equipment
  • Radio Waves
DEF

An instrument for measuring the wavelength of a radio-frequency wave.

OBS

The following are representative types: resonant-cavity, resonant-circuit, and standing-wave.

OBS

The standing-wave type is exemplified by a Lecher wire. Wavemeters may also be classified as (1) transmission type in which the resonant element and the detector are so arranged as to give a maximum response at resonance; and (2) suppression (absorption or reaction) type, which provide minimum response at resonance.

OBS

wavemeter: term and definition standardized by the Institute of Electrical and Electronics Engineers .

OBS

See also "frequency meter"; "frequency counter".

Key term(s)
  • wave meter
  • wavemetre
  • wave metre
  • wave-metre

French

Domaine(s)
  • Appareils de mesures (Électricité)
  • Ondes radioélectriques
DEF

Fréquencemètre gradué en longueurs d'onde.

OBS

En radioélectricité, on se sert de l'ondemètre à absorption : c'est un circuit composé d'une bobine en forme de boucle et d'un condensateur variable, dans lequel l'onde électromagnétique induit une force électromotrice. La valeur maximale de la force électromotrice, ou du courant, obtenue à la résonance, est indiquée par le maximum d'éclat d'une lampe au néon ou d'une lampe à incandescence.

Spanish

Campo(s) temático(s)
  • Equipo de medición eléctrica
  • Ondas radioeléctricas
Save record 4

Record 5 2008-03-18

English

Subject field(s)
  • Oscillators and Oscillating Circuits (Electronics)
DEF

A multi-range oscillator incorporating a meter in the grid circuit to indicate grid current.

OBS

The meter reading dips (reads lower grid current) when an external resonant circuit is tuned to the oscillator frequency.

French

Domaine(s)
  • Circuits oscillants et oscillateurs (Électronique)
CONT

Le «grid dip», encore nommé «ondemètre à absorption», se montre un précieux instrument.

Spanish

Save record 5

Record 6 1976-06-19

English

Subject field(s)
  • Telecommunications
OBS

2APN59.t.511.e

French

Domaine(s)
  • Télécommunications
OBS

ibid.f aéronautique(radars) 106cv.29.05.74

Spanish

Save record 6

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