TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

ELECTROMECHANICAL ACTUATOR [6 records]

Record 1 2017-10-27

English

Subject field(s)
  • Aeronautical Engineering and Maintenance
CONT

When the manual drive indexes are aligned, a ball drops into a detent and locks the electromechanical load-limiting actuator internally, holding the main entrance ladder assembly rigidly retracted.

French

Domaine(s)
  • Aérotechnique et maintenance

Spanish

Save record 1

Record 2 2010-02-11

English

Subject field(s)
  • Aeronautical Engineering and Maintenance
OBS

if the [manual drive] indexes are not aligned, the electromechanical load-limiting actuator cannot be locked and the gear train can back-drive enough to release the holding torque load, allowing the main entrance ladder assembly to rock back and forth on the fixed carriage during flight.

French

Domaine(s)
  • Aérotechnique et maintenance

Spanish

Save record 2

Record 3 2005-02-03

English

Subject field(s)
  • Launchers (Astronautics)
CONT

... a recoverable launcher can reliably approach an orbiting platform such as the space station and safely attach to it.

CONT

As part of its work on the next recoverable launcher, NASA has successfully hot-fire tested electromechanical actuator technology. Electro-mechanical actuators electronically regulate the propellant(fuel and oxidiser) flow in the engine. The new technology is a potential improvement to the older pneumatic and hydraulic-fluid systems currently used by the aerospace industry to drive and control critical rocket engine valves.

French

Domaine(s)
  • Lanceurs (Astronautique)
DEF

Lanceur [...] qui peut être utilisé à nouveau pour le transport de personnes ou de biens vers ou de l'espace [...].

CONT

Cinq navettes furent construites [...] pour remplacer Challenger [...] Au départ ce devait être un lanceur récupérable. Mais les coûts exorbitants obligèrent les responsables à le transformer en un lanceur semi-récupérable. Le gros réservoir est devenu un élément ordinaire. Seuls l'orbiteur et les propulseurs auxiliaires sont récupérés.

Spanish

Save record 3

Record 4 2003-12-08

English

Subject field(s)
  • Orbital Stations
  • Research Experiments in Space
CONT

Hexapod is a support facility to be mounted on an EXPA of the ISS. The facility will be used for the Stratospheric Aerosol and Gas Experiment III(SAGE III). The facility has a bottom plate and a top plate. The two plates are connected by 6 linear actuators. Hexapod receives the pointing data from SAGE III and the actual base position from the ISS-EXPA. From this data the HEXAPOD control algorithm calculates the next position for each leg. Each linear actuator is driven by a double winding Brushless DC Motor, while the position is monitored by an incremental encoder. To sustain the launch load a launch support structure has been designed, which is released by dedicated electromechanical devices. Hexapod is controlled by a dedicated electronic unit... which interfaces to the Station via the MIL BUS 1553B.

OBS

Hexapod pointing device: term officially approved by the International Space Station official approval Group (ISSOAG).

French

Domaine(s)
  • Stations orbitales
  • Travaux de recherche dans l'espace
OBS

système de pointage Hexapod : terme uniformisé par le Groupe de travail de la terminologie de la Station spatiale internationale (GTTSSI).

Spanish

Save record 4

Record 5 1980-09-10

English

Subject field(s)
  • Pneumatic Hoisting and Lifting
OBS

the cabin pressure outflow valve is clamp mounted in the cabin exhaust ducting and consists of a butterfly valve and housing a pneumatic actuator, a pneumatic relay, mechanical linkage, and an electromechanical rotary actuator(...)

French

Domaine(s)
  • Levage pneumatique
OBS

à noter que, dès que la pression s'est établie dans la chambre d'asservissement (...) le relais pneumatique (...) a fonctionné mettant en communication la chambre (...) avec la pression aval.

Spanish

Save record 5

Record 6 1980-06-17

English

Subject field(s)
  • Control Instrumentation (Mechanical Components)
OBS

the electromechanical load-limiting actuator has a chain drive mechanism which deploys and retracts the main entrance ladder assembly.

French

Domaine(s)
  • Dispositifs de commande (Composants mécaniques)

Spanish

Save record 6

Copyright notice for the TERMIUM Plus® data bank

© Public Services and Procurement Canada, 2025
TERMIUM Plus®, the Government of Canada's terminology and linguistic data bank
A product of the Translation Bureau

Features

Language Portal of Canada

Access a collection of Canadian resources on all aspects of English and French, including quizzes.

Writing tools

The Language Portal’s writing tools have a new look! Easy to consult, they give you access to a wealth of information that will help you write better in English and French.

Glossaries and vocabularies

Access Translation Bureau glossaries and vocabularies.

Date Modified: