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baromètre à cuvette [1 record]
Record 1 - internal organization data 2005-10-20
Record 1, English
Record 1, Subject field(s)
- Weather Stations and Meteorological Instruments and Equipment
Record 1, Main entry term, English
- cistern barometer
1, record 1, English, cistern%20barometer
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
A mercury barometer in which the lower mercury surface is larger in area than the upper surface. 1, record 1, English, - cistern%20barometer
Record number: 1, Textual support number: 1 CONT
The basic construction of a cistern barometer is as follows: A glass tube 1 m in length, sealed at one end, is filled with mercury, and then inverted. The tube is mounted so that its mouth penetrates the upper surface of a reservoir of mercury called the cistern of the barometer. Cistern barometers are classified according to whether the cistern is fixed in volume (see Kew barometer) or variable in volume (see Fortin barometer). 1, record 1, English, - cistern%20barometer
Record 1, French
Record 1, Domaine(s)
- Stations, instruments et équipements météorologiques
Record 1, Main entry term, French
- baromètre à cuvette
1, record 1, French, barom%C3%A8tre%20%C3%A0%20cuvette
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- baromètre à réservoir 2, record 1, French, barom%C3%A8tre%20%C3%A0%20r%C3%A9servoir
masculine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
Le baromètre à cuvette est directement déduit du tube de Torricelli. Sans dispositif approprié, la lecture précise de la hauteur de la colonne de mercure n'est pas très facile. On a donc disposé au-dessus de la cuvette une vis à deux bouts pointus, l'inférieur venant juste tangenter la surface libre du métal dans la cuvette. À l'aide d'un cathétomètre, on vient mesurer la différence de hauteur entre la pointe supérieure de la vis et la surface libre dans le tube. La longueur de la vis, mesurée une fois pour toutes, est ajoutée à l'indication du cathétomètre et l'on obtient ainsi la hauteur de la colonne de mercure. 1, record 1, French, - barom%C3%A8tre%20%C3%A0%20cuvette
Record number: 1, Textual support number: 1 PHR
Baromètre à cuvette ajustable, fixe. 3, record 1, French, - barom%C3%A8tre%20%C3%A0%20cuvette
Record 1, Spanish
Record 1, Textual support, Spanish
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