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Length measurement

Length measurement, distance measurement, or range measurement (ranging) all refer to the many ways in which length, distance, or range can be measured. The most commonly used approaches are the rulers, followed by transit-time methods and the interferometer methods based upon the speed of light. Surveying is one ancient use of measuring long distances.

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Overview

Standard rulers

Transit-time measurement

Interferometer measurements

Diffraction measurements

Far and moving targets

Other techniques

Other systems of units

Contact devices

Non-contact devices

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Map overview Semantic statistics

Length measurement

Nodes106
Edges105
Triples19
Avg. degree1.98
Density0.018868
Components1

How this topic connects Entity context

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Length measurement

Top relations

measured by · 12
Length measurement → An, Assuming, For, If, In, Long Range Aid, Navigation LORAN-C, Receiver, SI, The, Thus, Transit-time
related to Standard rulers · 2
Length measurement → Gauge, The

Important terminology Word statistics

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Important terminology

used measurement length light distance measured measurements using methods interferometer example diffraction range ranging time wavelengths distances units transit-time techniques

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
crystalsinstance ofSurveying is one ancient use of measuring long distances.For tiny objects0.80text
diffraction gratingsinstance ofSurveying is one ancient use of measuring long distances.For tiny objects0.80text
diffraction is used with X-ray lightinstance ofSurveying is one ancient use of measuring long distances.For tiny objects0.80text
or even electron beamsinstance ofSurveying is one ancient use of measuring long distances.For tiny objects0.80text
ion microscopy coupled with intensive computer modelinginstance ofMeasurement techniques for three-dimensional structures very small in every dimension use specialized instruments0.80text
Length measurementmeasured byThe0.60section
Length measurementmeasured byIf0.60section
Length measurementmeasured bySI0.60section
Length measurementmeasured byThus0.60section
Length measurementmeasured byAn0.60section
Length measurementmeasured byTransit-time0.60section
Length measurementmeasured byLong Range Aid0.60section

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