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  2. Surface metrology - Wikipedia

    en.wikipedia.org/wiki/Surface_metrology

    Surface metrology is the measurement of small-scale features on surfaces, and is a branch of metrology. Surface primary form, surface fractality, and surface finish (including surface roughness) are the parameters most commonly associated with the field. It is important to many disciplines and is mostly known for the machining of precision ...

  3. ISO 25178 - Wikipedia

    en.wikipedia.org/wiki/ISO_25178

    Part 602 describes this type of non-contact profilometer, incorporating a single point white light chromatic confocal sensor. The operating principle is based upon the chromatic dispersion of the white light source along the optical axis, via a confocal device, and the detection of the wavelength that is focused on the surface by a spectrometer .

  4. Mitutoyo - Wikipedia

    en.wikipedia.org/wiki/Mitutoyo

    Mitutoyo America Corporation was formed in 1963 and is headquartered in Aurora, Illinois (just outside Chicago).Mitutoyo America offers the full product line of precision measuring tools, instruments and equipment with a distribution network, training and education classes, software development, and service support to provide a comprehensive metrology organization.

  5. Profilometer - Wikipedia

    en.wikipedia.org/wiki/Profilometer

    Non-Contact Optical Profilometer A contact profilometer at LAAS technological facility in Toulouse, France. A profilometer is a measuring instrument used to measure a surface's profile, in order to quantify its roughness. Critical dimensions as step, curvature, flatness are computed from the surface topography.

  6. Normal contact stiffness - Wikipedia

    en.wikipedia.org/wiki/Normal_contact_stiffness

    Normal contact stiffness is a physical quantity related to the generalized force displacement behavior of rough surfaces in contact with a rigid body or a second similar rough surface. [ 1 ] [ 2 ] Specifically it is the amount of force per unit displacement required to compress an elastic object in the contact region.

  7. Contact mechanics - Wikipedia

    en.wikipedia.org/wiki/Contact_mechanics

    Bowden and Tabor were the first to emphasize the importance of surface roughness for bodies in contact. [10] [11] Through investigation of the surface roughness, the true contact area between friction partners is found to be less than the apparent contact area. Such understanding also drastically changed the direction of undertakings in tribology.

  8. Surface roughness - Wikipedia

    en.wikipedia.org/wiki/Surface_roughness

    Surface roughness, often shortened to roughness, is a component of surface finish (surface texture). It is quantified by the deviations in the direction of the normal vector of a real surface from its ideal form. If these deviations are large, the surface is rough; if they are small, the surface is smooth.

  9. Eddy-current testing - Wikipedia

    en.wikipedia.org/wiki/Eddy-current_testing

    The technique is very sensitive and can detect tight cracks. Surface inspection can be performed both on ferromagnetic and non-ferromagnetic materials. [8] [9] Tubing inspection is generally limited to non-ferromagnetic tubing and is known as conventional eddy current testing.

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