TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 CONT

CVGs [Coriolis vibrating gyroscope] have three features in common : a mechanical resonator, an oscillator and a force-displacement sensor. One mode of the resonator is maintained in resonance by an oscillator loop while oscillations are induced in a second vibration mode. The amplitude of the oscillations gives a signal proportional to the input angular rate. A wide variety of resonators, actuation and sensing schemes are possible. The simplest resonator is a tuning fork.  2, record 1, English, - mechanical%20resonator

Record number: 1, Textual support number: 2 CONT

... the following characteristics can be those of a rate gyro designed to measure a rate of turn up to 100 DEG per second. The mechanical resonator comprises four beams each having a cross-section of 6 mm by 6 mm, and each 30-35 mm long. The piezo-electric elements are constituted by pellets of PZT having a thickness of a few tenths of a millimeter, metal-coated on both faces, and bonded to the beams.  3, record 1, English, - mechanical%20resonator

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 CONT

En gyroscopie mécanique [...] on sait que le plan d'oscillation d'un pendule (on parlera plus loin d'un résonateur mécanique), ou l'axe d'une toupie en rotation rapide ont la propriété de conserver une direction fixe dans l'espace inertiel. [...] Mais, l'inertialité parfaite du pendule de Foucault est liée à la simplicité du résonateur et aux particularités de sa mise en œuvre. Aussi, dans les résonateurs mécaniques utilisés pour la fabrication des gyroscopes, la vibration mécanique est partiellement entraînée lors de la rotation du support mécanique.  1, record 1, French, - r%C3%A9sonateur%20m%C3%A9canique

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 CONT

A sweep ramp provides the tuning voltage for a voltage-tuned oscillator and is simultaneously applied to the horizontal-deflection system of a cathode-ray-tube display. The local-oscillator frequency is mixed with the input signal to produce an intermediate frequency(IF). The IF is detected, filtered, and applied to the vertical deflection plates of the CRT [cathode-ray-tube].  5, record 2, English, - cathode%2Dray%20tube%20display

Record number: 2, Textual support number: 2 CONT

The receiver has to have suitable pass band characteristics to deal with the pulse modulation side bands, and must be free from paralysis following reception of a large signal ... Its output is rectified and amplified and applied to the cathode-ray tube display, either as a deflexion or an intensity modulation. The cathode-ray tube is also supplied with a range time base ..., synchronized to the pulse transmission, and suitable calibration devices ... are usually also necessary. The form of the display unit depends on the particular radar application, and on what coordinate or coordinates other than range are to be presented. For example, in the plan position indicator the time base starts from the centre of the tube and goes radically outwards in a direction depending on the azimuth of the beamed aerials (which sweeps continuously), and the signal is presented as a spot intensifier.  6, record 2, English, - cathode%2Dray%20tube%20display

Record 2,  Textual support,  French

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 DEF

The measurement of an individual’s hearing sensitivity for calibrated pure tones including manual air-conduction measurements at octave intervals from 250 Hz (125 Hz under some circumstances) through 8000 Hz plus bone-conduction measurements at octave intervals from 250 Hz through 4000 Hz as needed.  2, record 3, English, - pure%2Dtone%20audiometry

Record number: 3, Textual support number: 1 OBS

The pure-tone audiometry is used to determine the threshold or softest level the patient can hear or detect with accuracy.  3, record 3, English, - pure%2Dtone%20audiometry

Record number: 3, Textual support number: 2 OBS

The historical antecedents of pure-tone audiometry were the classical tuning fork tests. The development of the audiometer made it possible to control signal intensity and duration in ways that were not possible with tuning forks.  2, record 3, English, - pure%2Dtone%20audiometry

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 DEF

Variété d'audiométrie utilisant des sons purs d'intensité variable, recherchant la valeur des seuils liminaires de perception et l'existence éventuelle de phénomènes particuliers dans les zones supraliminaires.  3, record 3, French, - audiom%C3%A9trie%20tonale

Record 3,  Textual support,  Spanish

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 CONT

The LLC is a tunable laser configuration with an optical feedback loop for wavelength locking. The LLC uses a differential etalon approach that outputs a comparative signal into a closed feedback loop for tuning and locking the laser.  1, record 4, English, - tunable%20laser%20configuration

Record 4,  Textual support,  French

Record number: 4, Textual support number: 1 CONT

La LLC est une configuration laser accordable dotée d'une boucle de retour optique permettant le verrouillage en longueur d'onde. La LLC fait appel à une méthode d'étalonnage différentielle qui émet un signal comparatif dans une boucle de retour en circuit fermé afin de régler et de verrouiller le laser.  1, record 4, French, - configuration%20laser%20accordable

Record 4,  Textual support,  Spanish

Record 5,  Textual support,  English

Record number: 5, Textual support number: 1 CONT

In a TRF receiver all amplification up to the detector takes place at the frequency of the incoming signal.(...) Each stage is tuned to the same frequency and the tuning elements are ganged together for convenience when tuning.(...) TRF receivers are especially applicable to the low-frequency and very-low-frequency bands from 10, 000 to 300, 000 Hz.  1, record 5, English, - tuned%2Dradio%2Dfrequency%20receiver

Record 5,  Textual support,  French

Record number: 5, Textual support number: 1 CONT

"Récepteur à amplification directe". (...) Toute l'amplification jusqu'au détecteur s'effectue à la fréquence de l'onde porteuse. Il faut que l'ensemble soit accordé sur cette fréquence et il faut pouvoir faire varier la fréquence d'accord afin de sélectionner les signaux. Ce type de récepteur n'est utilisé que pour des gammes de fréquences assez basses (10 kHz à 300 kHz).  1, record 5, French, - r%C3%A9cepteur%20%C3%A0%20amplification%20directe

Record 5,  Textual support,  Spanish

Record 6,  Textual support,  English

Record number: 6, Textual support number: 1 OBS

As tuning aids there are two pointer meters for indicating level and offset, plus a built-in IF panoramic display that makes a signal visible long before it is within the IF receiving bandwidth.  1, record 6, English, - IF%20panoramic%20display

Record 6,  Textual support,  French

Record number: 6, Textual support number: 1 OBS

Le réglage est facilité par deux cadrans à aiguilles, indiquant le niveau et le décalage, et par un affichage panoramique intégré pour les fréquences intermédiaires sur lequel le signal apparaît bien avant de se trouver dans la largeur de bande de réception de ces fréquences.  1, record 6, French, - affichage%20panoramique%20int%C3%A9gr%C3%A9

Record 6,  Textual support,  Spanish

Record 7,  Textual support,  English

Record number: 7, Textual support number: 1 OBS

Two signal nulls(180 degrees apart) are indicated by a reduction in audio level and a dip of the tuning meter needle.  1, record 7, English, - signal%20null

Record 7,  Textual support,  French

Record number: 7, Textual support number: 1 OBS

Principe [du VDF à oscilloscope]: réception sur aérien tournant à vitesse uniforme: le signal reçu (porteuse pure) se trouve alors modulé (modulation à double bandes latérales sans porteuse) et présente un nul deux fois par tour du diagramme; (...)  2, record 7, French, - nul%20du%20signal

Record 7,  Textual support,  Spanish

Record 8,  Textual support,  English

Record number: 8, Textual support number: 1 CONT

Two signal nulls(180 degrees apart) are indicated by a reduction in audio level and a dip of the tuning meter needle.  1, record 8, English, - dip

Record 8,  Textual support,  French

Record 8,  Textual support,  Spanish