TERMIUM Plus®

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

POINT ELECTRODE [7 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2014-01-29

English

Subject field(s)
  • Atomic Physics
DEF

A molecular device capable of converting energy into movement and able to generate forces on the order of piconewtons.

CONT

The nanomotor has a positioning stroke up to some centimeters while operating with atomic resolution and thus builds a bridge over eight orders of magnitude. The nanomotor is a piezo driven linear motor consisting of a cylindrical housing and a slider with a free axial hole inside. It utilizes a piezo tube for fine positioning and a pulse wave produced by the same piezo tube for coarse movements. Every point of its stroke can be reached with a speed of up to 5 mm/s. In its free axial hole the nanomotor can transport a tip, a hose, an electrode, a hypodermic needle, a glass fiber or even a microgripper. The nanomotor is available in three different versions. The "small" nanomotor is half the size of a match stick. It can lift six times of its own mass. The dynamic force of this nanomotor is so high, that even imprints in diamond surfaces can be produced. Special versions of the nanomotor can operate in ultra high vacuum, in liquid helium, even under water or as non-magnetic drives.

PHR

Primer, virus nanomotor.

PHR

Nanotube nanomotor.

Key term(s)
  • nano-motor

French

Domaine(s)
  • Physique atomique
DEF

Assemblage de molécules comportant des éléments de dimensions nanométriques qui, lorsqu'ils sont alimentés par une source d'énergie, répètent incessamment le même mouvement.

PHR

Nanomoteur biologique, protéique.

Key term(s)
  • nano-moteur

Spanish

Campo(s) temático(s)
  • Física atómica
CONT

El nanomotor es capaz de desplazar cargas y de girar como un motor convencional, pero un millón de veces más pequeño que el agujero de una aguja. La investigación abre las puertas a la creación de nuevos dispositivos nanométricos capaces de llevar a cabo tareas mecánicas con futuras aplicaciones en ámbitos como la biomedicina o los nuevos materiales.

Save record 1

Record 2 2011-06-07

English

Subject field(s)
  • Vacuum Tubes (Electronics)
DEF

The voltage between electrode and the cathode or a specified point of a filamentary cathode.

OBS

The terms "grid voltage", "anode voltage", "plate voltage", etc. designate the voltage between these electrodes and the cathode. Unless otherwise stated, electrode voltages are mesured at the available terminals.

French

Domaine(s)
  • Tubes et lampes (Électronique)
DEF

Tension entre une électrode et un point de référence spécifié sur la cathode.

Spanish

Campo(s) temático(s)
  • Tubos de vacío (Electrónica)
Save record 2

Record 3 2011-06-01

English

Subject field(s)
  • Electrochemistry
  • Electrometallurgy
DEF

The difference in electronic energy between a point inside the metal(Fermi level) of an electrode and a point outside the electrolyte in which the electrode is submerged.

French

Domaine(s)
  • Électrochimie
  • Électrométallurgie
CONT

Un métal [...] plongé dans un solvant ionisant tend à passer en solution en donnant des ions en équilibre avec le métal, sous forme d'une couche mince ionisante [...] Si ce métal est électriquement isolé, il va prendre une tension séparative [...] par rapport au solvant, dite tension absolue d'électrode.

Spanish

Campo(s) temático(s)
  • Electroquímica
  • Electrometalurgia
Save record 3

Record 4 2004-01-13

English

Subject field(s)
  • Analytical Chemistry
DEF

Solution titration in which the end point is read from the electrode-potential variations with the concentrations of potential-determining ions, following the Nernst concept.

French

Domaine(s)
  • Chimie analytique
CONT

Titrages potentiométriques. Ils sont parmi les plus précis des titrages pouvant être effectués en laboratoire. Ils se font tant en milieu aqueux qu'en milieu non aqueux. Ils sont fondés sur l'enregistrement continu du potentiel d'une électrode spéciale introduite dans la solution (électrode sensible aux variations de concentration de la substance à titrer, ces variations étant provoquées par l'addition de solution titrante).

Spanish

Campo(s) temático(s)
  • Química analítica
Save record 4

Record 5 2002-07-31

English

Subject field(s)
  • Welding and Soldering (Metals)
CONT

A real-time digital video-image-processing system contributes to the automation of weld-seam tracking. The tracking system makes no contact with the seam. A small television camera views the seam just ahead of the point currently being welded. The welding arc provides the illumination. Periodically, a frame grabber digitizes the video image and stores it in a computer memory as gray-scale values. The seam is located by analyzing Hough-transform arrays of derivatives of digitally-filtered image data. The information on the location and orientation of the seam is used as feedback by a welding robot to correct deviations of the electrode from the seam as welding continues.

French

Domaine(s)
  • Soudage (Métal)

Spanish

Save record 5

Record 6 1992-11-09

English

Subject field(s)
  • Semiconductors (Electronics)
OBS

bias : a d-c voltage applied to a transistor control electrode to establish the desired operating point.

French

Domaine(s)
  • Semi-conducteurs (Électronique)
OBS

dispositif fournissant la tension de polarisation.

Spanish

Save record 6

Record 7 1976-06-19

English

Subject field(s)
  • Arc Welding
OBS

during the welding process, the voltage measured between two electrode holders or between one electrode holder and a point on the workpiece near he weld

French

Domaine(s)
  • Soudage à l'arc

Spanish

Save record 7

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