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What (who) is surface measurement - definition

INSTRUMENT USED TO MEASURE A SURFACE'S PROFILE

Profilometry; Profilometery; Surface profile measurement

Measurement in quantum mechanics

INTERACTION OF A QUANTUM SYSTEM WITH A CLASSICAL OBSERVER

Measurement in Quantum mechanics; Quantum measurement; Measurement of quantum entanglement; Quantum Measurement Problem; Measurement in quantum theory; Von Neumann measurement scheme; Lüders rule; Quantum measurement theory

In quantum physics, a measurement is the testing or manipulation of a physical system to yield a numerical result. The predictions that quantum physics makes are in general probabilistic.

https://en.wikipedia.org/wiki/Measurement_in_quantum_mechanics

Surface finish

SMALL, LOCAL DEVIATIONS OF A SURFACE FROM A PERFECTLY FLAT IDEAL; DEFINED BY THE THREE CHARACTERISTICS OF LAY, SURFACE ROUGHNESS, AND WAVINESS

Surface texture symbol; Surface texture; Surface topography

Surface finish, also known as surface texture or surface topography, is the nature of a surface as defined by the three characteristics of lay, surface roughness, and waviness.. It comprises the small, local deviations of a surface from the perfectly flat ideal (a true plane).

https://en.wikipedia.org/wiki/Surface_finish

Parametric surface

SURFACE IN THE EUCLIDEAN SPACE

Parametrized surface; Parametrised surface; Parametrized Surface; Surface parameterisation; Parametric object

A parametric surface is a surface in the Euclidean space \R^3 which is defined by a parametric equation with two parameters Parametric representation is a very general way to specify a surface, as well as implicit representation. Surfaces that occur in two of the main theorems of vector calculus, Stokes' theorem and the divergence theorem, are frequently given in a parametric form.

https://en.wikipedia.org/wiki/Parametric_surface

Wikipedia

Profilometer

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.

While the historical notion of a profilometer was a device similar to a phonograph that measures a surface as the surface is moved relative to the contact profilometer's stylus, this notion is changing with the emergence of numerous non-contact profilometry techniques.

Non-scanning technologies are able to measure the surface topography within a single camera acquisition, XYZ scanning is no longer needed. As a consequence, dynamic changes of topography are measured in real-time. Contemporary profilometers are not only measuring static topography, but now also dynamic topography – such systems are described as time-resolved profilometers.

https://en.wikipedia.org/wiki/Profilometer