en

root-mean-square roundness deviation

1

Terminological databases

Metroloogia terminibaas

ID 1146164 Last modified 07.07.2025
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Domain Standardisation - Metrologymeasuring procedures
  • ruutjuur vähimruutude meetodi abil arvutatud tugiringjoone/-ringi kohalike ümarushälvete ruutude summast
  • square root of the sum of the squares of the local roundness deviations from the least squares reference circle
ruutkeskmine ümarushälve preferred
Usage examples
  • Ruutkeskmine ümarushälve on määratletud ainult vähimruutude meetodil arvutatud tugiringjoontest/-ringidest lähtudes ja seda kasutatakse spetsifikatsioonides selleks, et näidata, et kujutolerants kehtib ruutkeskmisele ümarushälbele vähimruutude meetodil arvutatud tugiringjoonel/-ringil.
ΔRrms symbol
root-mean-square roundness deviation
Usage examples
  • The root-mean-square roundness deviation is only defined for least squares reference circles, and is used in specifications to indicate that form tolerance applies to the root-mean-square deviation relative to the least squares reference circle.
ΔRrms symbol

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