
Measurement system | Types & Definition | Britannica
Measurement system, any of the systems used in the process of associating numbers with physical quantities and phenomena. Two types of measurement systems are distinguished historically: an evolutionary system, such as the British Imperial, and a planned system, such as the International System of Units.
Measurement | Definition, Types, Instruments, & Facts | Britannica
2025年2月3日 · Measurement instruments and systems. In general, measuring systems comprise a number of functional elements. One element is required to discriminate the object and sense its dimensions or frequency. This information is then transmitted …
Metric system | Definition, Facts, & History | Britannica
2025年2月6日 · Metric system, international decimal system of weights and measures, based on the meter for length and the kilogram for mass, that was adopted in France in 1795 and is now used officially in almost all countries. The metric system was later extended as the International System of Units (SI).
Measurement system - English, US Customary, Weights
Measurement system - English, US Customary, Weights & Measures: Out of the welter of medieval weights and measures emerged several national systems, reformed and reorganized many times over the centuries; ultimately nearly all of …
International System of Units | Measurement, Conversion
2024年12月21日 · International System of Units (SI), international decimal system of weights and measures derived from and extending the metric system of units. SI has seven basic units, from which others are derived: the second, the meter, the kilogram, the ampere, the kelvin, the mole, and the candela.
list of weights and measures - Encyclopedia Britannica
This is a list of weights and measures, arranged by type of unit. The measurement system in which it is used is also given as well as metric and U.S. Customary equivalents. Units of area
Measurement system - Metric, Units, Conversion | Britannica
Measurement system - Metric, Units, Conversion: One of the most significant results of the French Revolution was the establishment of the metric system of weights and measures.
Measurement scale | Statistical Analysis, Types & Uses | Britannica
Measurement scale, in statistical analysis, the type of information provided by numbers. Each of the four scales (i.e., nominal, ordinal, interval, and ratio) provides a different type of information. Measurement refers to the assignment of numbers in a …
Metrology | accuracy, precision, calibration | Britannica
Metrology, the science of measurement. From three fundamental quantities, length, mass, and time, all other mechanical quantities—e.g., area, volume, acceleration, and power—can be derived. A comprehensive system of practical measurement should include at least three other bases, taking in the
Gauge | Types, Uses & Measurement | Britannica
Gauges are usually regarded as either fixed-type or deviation-type instruments. Fixed-type gauges are used to indicate whether a given dimension is larger or smaller than the standard. They may be of hard steel, soft steel, or glass.