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FREQUENCE CRITIQUE [3 records]
Record 1 - internal organization data 2011-04-18
Record 1, English
Record 1, Subject field(s)
- Vacuum Tubes (Electronics)
Record 1, Main entry term, English
- threshold frequency
1, record 1, English, threshold%20frequency
correct, officially approved
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 OBS
threshold frequency: term officially approved by the Electronics and Telecommunications Terminology Committee. 2, record 1, English, - threshold%20frequency
Record 1, French
Record 1, Domaine(s)
- Tubes et lampes (Électronique)
Record 1, Main entry term, French
- seuil de fréquence
1, record 1, French, seuil%20de%20fr%C3%A9quence
correct, masculine noun, officially approved
Record 1, Abbreviations, French
Record 1, Synonyms, French
- fréquence seuil 1, record 1, French, fr%C3%A9quence%20seuil
correct, feminine noun, officially approved
- fréquence critique 1, record 1, French, fr%C3%A9quence%20critique
correct, feminine noun, officially approved
Record 1, Textual support, French
Record number: 1, Textual support number: 1 OBS
seuil de fréquence; fréquence seuil; fréquence critique : termes uniformisés par le Comité d’uniformisation des termes de l’électronique et des télécommunications (CUTEL). 2, record 1, French, - seuil%20de%20fr%C3%A9quence
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Tubos de vacío (Electrónica)
Record 1, Main entry term, Spanish
- frecuencia umbral
1, record 1, Spanish, frecuencia%20umbral
correct, feminine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
- umbral de frecuencia 2, record 1, Spanish, umbral%20de%20frecuencia
correct, masculine noun
Record 1, Textual support, Spanish
Record 2 - internal organization data 2011-03-09
Record 2, English
Record 2, Subject field(s)
- Acoustics (Physics)
Record 2, Main entry term, English
- coincidence frequency
1, record 2, English, coincidence%20frequency
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
The frequency at which a sound wave incident upon a surface has a projected wavelength equal to the length of the bending wave excited in the surface material. The effect of this "trace matching" is a marked reduction in the sound transmission loss in the frequency region in which this occurs. The frequency is a function of the angle at which the sound impinges on the surface, the surface weight, and bending stiffness of the surface. 2, record 2, English, - coincidence%20frequency
Record 2, French
Record 2, Domaine(s)
- Acoustique (Physique)
Record 2, Main entry term, French
- fréquence de coïncidence
1, record 2, French, fr%C3%A9quence%20de%20co%C3%AFncidence
correct, feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
- fréquence critique 2, record 2, French, fr%C3%A9quence%20critique
feminine noun
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
Les pertes de transmission du son par les cloisons et les planchers dépendent également de la rigidité. Les courbes des pertes de transmission de son pour les matériaux rigides présentent des creux à certaines fréquences par rapport aux pertes calculées selon la loi de masse. Cet effet dit de coïncidence entraîne souvent un ITS plus faible. Les matériaux peu rigides comme les feuilles de plomb n'ont pas de creux de coïncidence. Les fréquences de coïncidence des différents matériaux se produisent dans diverses parties du spectre acoustique, parfois en dehors de la gamme normale utilisée en acoustique du bâtiment. 2, record 2, French, - fr%C3%A9quence%20de%20co%C3%AFncidence
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2009-11-16
Record 3, English
Record 3, Subject field(s)
- Telecommunications
- Radio Waves
Record 3, Main entry term, English
- critical frequency
1, record 3, English, critical%20frequency
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
Record 3, Textual support, English
Record number: 3, Textual support number: 1 CONT
The critical frequency ... is the highest frequency that can be reflected when a signal strikes the ionosphere as a vertical (90° with respect to the surface) incident wave. 2, record 3, English, - critical%20frequency
Record 3, French
Record 3, Domaine(s)
- Télécommunications
- Ondes radioélectriques
Record 3, Main entry term, French
- fréquence critique
1, record 3, French, fr%C3%A9quence%20critique
correct, feminine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record 3, Spanish
Record 3, Campo(s) temático(s)
- Telecomunicaciones
- Ondas radioeléctricas
Record 3, Main entry term, Spanish
- frecuencia crítica
1, record 3, Spanish, frecuencia%20cr%C3%ADtica
correct, feminine noun
Record 3, Abbreviations, Spanish
Record 3, Synonyms, Spanish
Record 3, Textual support, Spanish
Record number: 3, Textual support number: 1 DEF
Frecuencia máxima reflejada por la capa F2 con incidencia vertical. 1, record 3, Spanish, - frecuencia%20cr%C3%ADtica
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