en

U

2 symbol

Terminological databases

Metroloogia terminibaas

ID 572249 Last modified 11.03.2026
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Domain Standardisation - Metrology
  • pinge faaside vahel
  • voltage between phases
  • voltage difference between two phases
faasidevaheline pinge preferred
Usage examples
  • Faasidevaheline pinge 230 V faas-neutraalsüsteemi korral on 230 V x √3 = 400 V .
liinipinge
võrgupinge variant
U symbol
phase to phase voltage preferred
Usage examples
  • The phase-to-phase voltage is the voltage between two phases in a three-phase supply is equal to the phase voltage multiplied by the 120 degree phase shift, or 1,73.
line to line voltage
voltage between lines
U symbol
mesh voltage variant
delta voltage variant

Metroloogia terminibaas

ID 574643 Last modified 17.01.2026
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Domain Standardisation - Metrology
  • pinge ahelas, kuhu arvesti on ühendatud
  • arvesti elektripinge väärtus
  • skalaarsuurus, mis on võrdne elektrivälja tugevuse kahte punkti ühendava joonintegraliga
  • scalar quantity equal to the line integral of the electric field strength along a specific path linking two points
  • value of the electrical voltage supplied to the meter
  • for a conductor, scalar quantity given by the electric potential difference between two points a and b respectively
  • difference in electric potential between two points
  • voltage of the circuit to which the meter is connected
elektripinge preferred
Usage examples
  • Punktide vahelist elektripinget võib põhjustada elektrilaengu kogunemine ja elektromotoorjõud.
Good to know
  • Samuti võivad elektripinge põhjustada elektrokeemilised protsessid, rõhust põhjustatud piesoelektriline efekt ja termoelektriline efekt.
elektriline pinge
pinge
U symbol
voltage preferred
Usage examples
  • The voltage between points can be caused by the build-up of electric charge, and from an electromotive force.
Good to know
  • On a macroscopic scale, a voltage can be caused by electrochemical processes, the pressure-induced piezoelectric effect, and the thermoelectric effect.
U symbol

Metroloogia terminibaas

ID 1149599 Last modified 10.03.2026
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Domain Standardisation - Metrology
  • mahuvoo kiiruse (kohaliku vedeliku kiiruse aksiaalsete komponentide integraal üle toruava ristlõike) ja mõõteristlõike pindala suhe
  • ratio of the volume flow-rate (the integral over a cross-section of the conduit of the axial components of the local fluid velocity) to the area of the measurement cross-section
vedeliku keskmine telgkiirus
Usage examples
  • Vedeliku keskmine telgkiirus on vedeliku keskmine kiirus torus, mis tavaliselt tähendab vookiirust jagatuna voo ristlõikepindalaga ja kui voog on ebastabiilne, nõuab keskmine telgkiirus tavaliselt ka keskmise aja kasutamist
U symbol
mean axial fluid velocity
Usage examples
  • The mean axial fluid velocity is the mean velocity of a fluid in a pipe normally means the flow rate divided by the cross-sectional area of the flow. If the flow is unsteady, then mean velocity usually means time averaged as well.
U symbol

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