profiili kõrguse absoluutväärtuste aritmeetiline keskmine

arithmetic mean of the absolute ordinate values of the surface profile
height parameter that is the mean of the absolute of the ordinate values of the scale-limited surface

aritmeetiline keskmine kõrgus preferred

Usage examples

Aritmeetiline keskmine kõrgus (profiilide puhul Pa, Wa, Ra ja pindade puhul Sa) on pinna ebatasasuste keskmine absoluutne hälve keskmisest joonest või tasapinnast valimipikkuse piires ja on pinna kareduse hindamisel kõige levinum parameeter, mis esindab absoluutsete tippude ja orgude hälvete aritmeetilist keskmist.

profiili aritmeetiline keskmine

pinnakareduse profiilihälvete aritmeetiline keskmine

symbol

symbol

profiili keskmine aritmeetiline hälve former

keskmine pinnakonarus former

arithmetic mean height preferred

Usage examples

Arithmetical mean height (Pa, Wa, Ra for profiles, Sa for surfaces) is the average absolute deviation of surface irregularities from the mean line or plane within a sampling length, and it is the most common parameter for assessing surface roughness, representing the arithmetic average of absolute peak and valley deviations.

arithmetical mean height of the absolute values

mean roughness R

variant

symbol

symbol

arithmetic average surface roughness former

roughness average former

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