Kohdepinnan

Kohdepinnan is a Finnish term formed from kohde (target, object) and pinta (surface). In its genitive form, kohdepinnan, it refers to the surface that is the object of measurement, analysis, or observation in technical and scientific contexts. The word is commonly used in Finnish metrology, optics, surface science, manufacturing quality control, and related fields to designate the surface that measurement devices or inspection processes reference.

In use, kohdepinta denotes the surface itself, while kohdepinnan indicates possession, relation, or association with that surface. The concept is essential whenever the geometry, texture, or condition of a surface is the primary subject of measurement, calibration, or alignment. For example, a profiler or interferometer may be set up to characterize the kohdepinnan topography, flatness, or roughness, and calibration procedures may reference the kohdepinnan shape and position.

Kohdepinnan is not a standalone technical term with a fixed definition in general dictionaries; rather, it is a compound noun common in technical Finnish that relies on the broader concept kohdepinta. The term is often encountered in equipment manuals, laboratory protocols, and quality documentation where precise reference to the target surface is required.

See also: kohdepinta, pinta, kohde.