Meetlengte

Meetlengte is a Dutch term meaning measurement length. It refers to the distance designated as the reference length for a measurement, or the portion of a specimen or object over which a measurement is performed. The concept is used across fields such as metrology, materials testing, surveying, and cartography, and its exact meaning depends on the context and standards in use.

In materials testing, meetlengte often corresponds to the gauge length of a test specimen—the initial distance between two marks on the specimen from which strain is calculated. When the specimen is loaded, the length change is recorded and the strain is defined as the relative change in length, ε = ΔL / L0, where L0 is the meetlengte. The specific gauge length to be used is determined by applicable standards or material specifications, which may vary by country or organization.

In surveying and mapping, meetlengte denotes the measured distance along a line or route used for scale calibration, alignment, or distance reporting. In computer vision or calibration work, a similar concept may be described as a measurement window or reference length.

Etymology: meet = to measure, lengte = length. Related terms include gauge length, reference length, and extensometer in the context of tensile testing. The precise definition of meetlengte can vary by domain and standard, so consulting domain-specific documentation is advisable.