出典:Wikipedia
出典:『Wikipedia』 (2011/06/21 13:38 UTC 版)
In the physical sciences, quality assurance, and engineering, measurement is the activity of obtaining and comparing physical quantities of real-world objects and events. Established standard objects and events are used as units, and the process of measurement gives a number relating the item under study and the referenced unit of measurement. Measuring instruments, and formal test methods which define the instrument's use, are the means by which these relations of numbers are obtained. All measuring instruments are subject to varying degrees of instrument error and measurement uncertainty.
measuring instrument
a measuring instrument
an instrument for mechanically measuring the depth of water beneath a ship, called depth-sounder
a tool used for land-surveying
an instrument used for surveying
gauge the instruments
an instrument used as a gauge
implement used for measurement called heliograph or a heliotrope
an instrument used to measure volume
an instrument for measuring something
a measuring instrument for weighing
measuring instrument for measuring temperature
an instrument used to measure an angle
a measuring instrument called anemometer
a measuring instrument called anemometer
an instrument that measures the depth of water
measuring instrument for performing pelvimetry