Arithmetic Average Roughness (Ra) at Medical Drugs Glossary

What is Arithmetic Average Roughness (Ra)? The arithmetic average height of roughness component irregularities from the mean line measured within the sample length (L). This measurement conforms to ANSI/ASME B46.1 Surface Texture - Surface Roughness, Waviness and Lay. Ra (formerly known as AA or

Medical Term & Definition Added By: Aaron

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