tõeline leppeväärtus

Terminological databases

ID 574206 Last modified 16.03.2026

Domain Standardisation - Metrology

conventional true value

konkreetsele suurusele omistatud väärtus, mis on tunnustatud (mõnikord leppeliselt) kui väärtus, millel on teatud otstarbeks sobiv määramatus
tõelise väärtusena käsitatava soojuskoguse väärtus
kindlal eesmärgil leppeliselt omistatud väärtus

value of a quantity which for a given purpose, may be substituted for the true value
value of a quantity which is considered as a true value
quantity value attributed by agreement to a quantity for a given purpose

tõeline leppeväärtus

Usage examples

Tõeline leppeväärtus on nt vaba langemise standardkiirendus (varem nimetatud „standardkiirenduseks gravitatsiooni tõttu“), gn = 9,806 65 m · s−2 , Josephsoni konstandi väärtus, KJ-90 = 483 597,9 GHz · V −1 ja antud massietaloni väärtus, m = 100,003 47 g.

conventional true value

Usage examples

Conventional true value is to example: standard acceleration of free fall (formerly called “standard acceleration due to gravity”), gn = 9,806 65 m · s−2 , value of the Josephson constant, K J-90 = 483 597,9 GHz · V −1 and value of a given mass standard, m = 100,003 47 g.

Good to know

The term “conventional true quantity value” is sometimes used for this concept, but its use is discouraged; sometimes a conventional true value is an estimate of a true quantity value. A conventional true value is generally accepted as being associated with a suitably small measurement uncertainty, which might be zero.

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