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TROU ACOUSTIQUE [3 records]
Record 1 - internal organization data 2010-12-29
Record 1, English
Record 1, Subject field(s)
- Seismic Prospecting
- Geological Research and Exploration
- Mineral Prospecting Equipment
- Acoustics (Physics)
Record 1, Main entry term, English
- acoustic transmitter
1, record 1, English, acoustic%20transmitter
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
Acoustic transmitter. ... - A transmitter of acoustic energy which propagates that energy in a directional manner is described. An acoustic signal generator is connected at one end of an acoustic transmission line which exhibits a certain characteristic impedance. The line has a number of ports spaced along its length. ... acoustic energy is partitioned evenly at each port so as to define an array of equal strength radiators having directional acoustic signal propagating characteristics. 2, record 1, English, - acoustic%20transmitter
Record number: 1, Textual support number: 2 CONT
Acoustic transmitter in particular for use in offshore seismic explorations, having sound-emitting surfaces ... being adapted to be subjected to vibrational movement by means of a drive unit ... through at least one push element ... and two plate-like end pieces ... which are connected to the sound-emitting surfaces. 3, record 1, English, - acoustic%20transmitter
Record number: 1, Textual support number: 1 OBS
acoustic transmitter: term used at Natural Resources Canada - Earth Sciences Sector. 4, record 1, English, - acoustic%20transmitter
Record number: 1, Textual support number: 1 PHR
Borehole acoustic transmitter. 5, record 1, English, - acoustic%20transmitter
Record number: 1, Textual support number: 2 PHR
Deep-sea acoustic transmitter. 6, record 1, English, - acoustic%20transmitter
Record 1, French
Record 1, Domaine(s)
- Prospection sismique
- Recherches et prospections géologiques
- Matériel de prospection minière
- Acoustique (Physique)
Record 1, Main entry term, French
- émetteur acoustique
1, record 1, French, %C3%A9metteur%20acoustique
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- transmetteur acoustique 2, record 1, French, transmetteur%20acoustique
correct, masculine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
émetteur acoustique sous-marin : Transducteur servant à produire des ondes sonores dans l’eau par transformation d’énergie électrique en énergie mécanique au moyen de l’effet piézo-électrique ou de la magnétostriction. 3, record 1, French, - %C3%A9metteur%20acoustique
Record number: 1, Textual support number: 2 CONT
Émetteur acoustique destiné notamment à la prospection sismique en mer, et doté de surfaces [...] émettant des sons et étant soumises à un mouvement vibratoire par une unité d’entraînement [...] par l’intermédiaire d’au moins un élément formant poussoir [...] et de deux pièces terminales en forme de plaque [...] reliées auxdites surfaces. 4, record 1, French, - %C3%A9metteur%20acoustique
Record number: 1, Textual support number: 1 OBS
transmetteur acoustique : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre. 5, record 1, French, - %C3%A9metteur%20acoustique
Record number: 1, Textual support number: 1 PHR
Transmetteur acoustique pour trou de forage. 6, record 1, French, - %C3%A9metteur%20acoustique
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2000-06-27
Record 2, English
Record 2, Subject field(s)
- Geophysics
- Scientific Measurements and Analyses
- Geological Prospecting
Record 2, Main entry term, English
- sonic logging
1, record 2, English, sonic%20logging
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
- continuous velocity logging 2, record 2, English, continuous%20velocity%20logging
- vertical logging 3, record 2, English, vertical%20logging
correct
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
The recording of the time required for a sound wave to travel a specific distance through a formation. 4, record 2, English, - sonic%20logging
Record number: 2, Textual support number: 1 OBS
The difference in observed travel times are due mainly to variations in porosities of the medium. 4, record 2, English, - sonic%20logging
Record 2, Key term(s)
- continuous-velocity logging
- velocity logging
Record 2, French
Record 2, Domaine(s)
- Géophysique
- Mesures et analyse (Sciences)
- Prospection géologique
Record 2, Main entry term, French
- carottage continu des vitesses sismiques
1, record 2, French, carottage%20continu%20des%20vitesses%20sismiques
correct, masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 CONT
Le carottage continu des vitesses sismiques [...] consiste à mesurer la vitesse sismique pour de petits intervalles de distance suivant la verticale en descendant la sonde dans le trou de forage. L'impulsion acoustique est engendrée par la décharge d’un arc électrique puissant ou provient d’une source d’ondes supersoniques ou d’une autre nature, elle se propage dans la roche sur une distance de quelques mètres(1-3 m ou 4-10 pi) ;le signal est capté par un géophone et un compteur de temps électronique mesure le temps de propagation de l'onde sismique entre la source émettrice et le récepteur séparés par une distance constante. Cette constante est si petite que la sonde mesure la vitesse sismique [...] comme une fonction continue de la profondeur [...] 1, record 2, French, - carottage%20continu%20des%20vitesses%20sismiques
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 1995-04-19
Record 3, English
Record 3, Subject field(s)
- Ultrasonography
Record 3, Main entry term, English
- sonic hole 1, record 3, English, sonic%20hole
Record 3, Abbreviations, English
Record 3, Synonyms, English
Record 3, Textual support, English
Record number: 3, Textual support number: 1 CONT
Variations in colour diameter according to the cross-section plane. Sonic hole being the dense structure. 1, record 3, English, - sonic%20hole
Record 3, French
Record 3, Domaine(s)
- Ultrasonographie
Record 3, Main entry term, French
- trou acoustique
1, record 3, French, trou%20acoustique
masculine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record number: 3, Textual support number: 1 CONT
Les limites inhérentes à la propagation des ultrasons sont bien connues : air, calcifications [...], responsables de trou acoustique, etc. 1, record 3, French, - trou%20acoustique
Record 3, Spanish
Record 3, Textual support, Spanish
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