et

voolukaal

1 substantive

Terminological databases

Metroloogia terminibaas

ID 610963 Last modified 03.05.2024
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Domain metrologyunits of measurementmeasuring instruments
  • elektromehaaniline mõõtevahend, mida kasutatakse elektrivoolu SI mõõtühiku amper reprodutseerimiseks
  • electromechanical apparatus used for the precise measurement of the SI unit of electric current, the ampere
ampri reprodutseerimismõõtevahend preferred
Usage examples
  • Ampri reprodutseerimismõõtevahendi korral mõõdetav vool juhitakse läbi kahe traadist mähise, millest üks on kinnitatud tundliku võrdhaarse kangkaalu ühe haara külge, ja kahe mähise vahelist magnetjõudu mõõdetakse selle võrdhaarse kangkaalu abil hoides seda tasakaalus ning tasakaalustatud raskusjõu abil fikseeritakse mõõdetava voolu voolutugevuse väärtus.
amperkaal
voolukaal variant
ampere balance preferred
Good to know
  • The current to be measured is passed in series through two coils of wire, one of which is attached to one arm of a sensitive balance, and the magnetic force between the two coils is measured by the amount of weight needed on the other arm of the balance to keep it in equilibrium, and this is used to calculate the magnitude of the current.

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