# metrology > science of measurement and its application **Wikidata**: [Q394](https://www.wikidata.org/wiki/Q394) **Wikipedia**: [English](https://en.wikipedia.org/wiki/Metrology) **Source**: https://4ort.xyz/entity/metrology ## Summary Metrology is the science of measurement and its application across various fields of study and industry. It encompasses the theoretical and practical aspects of measurement, including the development and maintenance of measurement standards, units, and systems. ## Key Facts - Metrology is classified as both an academic discipline and a branch of science - It is considered a field of scientific study with significant academic presence - The field includes academic majors focused on measurement science - Metrology is a subclass of physical science, which studies non-living systems - It is directly related to the measurement process of assigning quantities to objects or events - Historical metrology is a specialized study of measurement systems - Nanometrology focuses on the metrology of nanomaterials - Level of measurement is a classification describing the nature of information within numbers assigned to variables - The International Bureau of Weights and Measures is an intergovernmental organization established by the Metre Convention in 1875 - National metrology institutes exist worldwide, including the Physikalisch-Technische Bundesanstalt (founded 1887) and the Federal Institute of Metrology in Switzerland (founded 1862) - The National Institute of Standards and Technology (NIST) was established in 1901 as the National Bureau of Standards ## FAQs ### What type of academic field is metrology? Metrology is both an academic discipline and a branch of science that focuses on the study of measurement. It encompasses theoretical and practical aspects of measurement science and includes academic majors leading to degrees in the field. ### What organizations and institutions are associated with metrology? Major metrology organizations include the International Bureau of Weights and Measures (established 1875), national metrology institutes like the Physikalisch-Technische Bundesanstalt in Germany (founded 1887), the Federal Institute of Metrology in Switzerland (METAS, founded 1862), and the National Institute of Standards and Technology (NIST) in the United States (established 1901). ### How is metrology related to other scientific fields? Metrology is a subclass of physical science, which studies non-living systems. It is directly connected to the fundamental process of measurement, which assigns quantities to objects or events, and it has specialized branches including historical metrology and nanometrology. ## Why It Matters Metrology serves as the foundational science that enables accurate and consistent measurement across all scientific disciplines, industries, and commercial activities. Without standardized measurement systems and reliable metrological practices, scientific research would lack reproducibility, international trade would face insurmountable barriers, and technological advancement would be severely hampered. The field ensures that measurements are traceable to internationally recognized standards, facilitating global cooperation in science, engineering, and commerce. The importance of metrology extends to virtually every aspect of modern life, from ensuring the safety and efficacy of medical devices to enabling precision manufacturing, environmental monitoring, and space exploration. National metrology institutes maintain the primary standards that underpin entire national measurement systems, while international cooperation through organizations like the International Bureau of Weights and Measures ensures global consistency in measurement standards. ## Notable For - Serves as the fundamental science underlying all quantitative scientific endeavors - Encompasses both theoretical foundations and practical applications of measurement - Includes specialized branches such as historical metrology and nanometrology - Connected to prestigious national metrology institutes worldwide - Associated with renowned scientists who contributed to measurement science - Forms the basis for international standardization efforts - Enables global trade through standardized measurement systems - Supports technological innovation through precise measurement capabilities ## Body ### Academic Classification and Structure Metrology is formally recognized as both an academic discipline and a branch of science. As an academic discipline, it represents a field of study or profession that encompasses the systematic investigation of measurement principles and practices. The field also qualifies as a branch of science, specifically a field of scientific study that investigates the theoretical and practical aspects of measurement. Within academic institutions, metrology appears as an academic major, representing a focus of academic study leading to formal degrees in measurement science. ### Relationship to Physical Sciences Metrology is classified as a subclass of physical science, which is defined as a branch of natural science that studies non-living systems. This relationship places metrology within the broader context of scientific inquiry focused on quantifiable phenomena. The connection to physical science reflects metrology's fundamental role in providing the measurement infrastructure necessary for all physical science research and applications. ### Core Concepts and Specialized Branches The field of metrology is intrinsically connected to the concept of measurement itself, which is defined as the process of assigning quantities to objects or events. This fundamental relationship forms the core of metrological practice and theory. Within metrology, specialized branches have emerged to address specific measurement challenges, including historical metrology, which focuses on the study of measurement systems throughout history, and nanometrology, which addresses the unique measurement challenges of nanomaterials and nanotechnology. ### International Organizations and Standards Bodies The International Bureau of Weights and Measures stands as a key intergovernmental organization in the metrological ecosystem, established by the Metre Convention in 1875. This organization serves as the central coordinating body for international measurement standards and cooperation. The establishment date of May 20, 1875, marks a pivotal moment in the history of international metrology cooperation. ### National Metrology Institutes Several prominent national metrology institutes exemplify the institutional framework of metrology worldwide. The Physikalisch-Technische Bundesanstalt (PTB) in Germany was founded in 1887 and serves as the national metrology institute of the German Federal Republic. Located in Brunswick, Germany, the PTB operates as a higher federal authority and public-law institution responsible for research and experimental development in natural sciences and engineering. The Federal Institute of Metrology in Switzerland, known as METAS since 2013, was established in 1862 as the Eidgenössische Eichstätte. Located in Wabern bei Bern, this institute operates under the Federal Department of Justice and Police and serves as Switzerland's national metrology institute. The National Institute of Standards and Technology (NIST) in the United States was established in 1901 as the National Bureau of Standards. Operating under the U.S. Department of Commerce, NIST serves as the nation's primary authority on metrology, developing standards and technology to enhance industrial competitiveness and facilitate trade. ### Associated Scientific Figures The field of metrology has connections to numerous notable scientists who contributed to measurement science and related disciplines. These include Dmitri Mendeleev, the Russian chemist (1834–1907), who made significant contributions to chemical measurement and standardization. Dmitri Konovalov, another Russian and Soviet chemist, also contributed to measurement science. Italian mathematician and engineer Carlo Renaldini worked in areas related to measurement and mathematical applications. Dutch inventor Cornelis Drebbel contributed to early measurement and instrumentation techniques. Swedish physicist Gustaf Ising (1883-1960) worked in measurement-related physics. Dutch mathematician and physicist Jean Henri van Swinden (1746–1823) contributed to mathematical approaches to measurement and physical phenomena. ### Technical Classifications and Identifiers Metrology is formally classified in multiple knowledge systems with various identifiers. The field has a sitelink count of 75 across different language versions of Wikipedia and related projects. The Wikipedia title for metrology is simply "Metrology" and its Wikidata description reads "science of measurement and its application." The entity has numerous technical identifiers including P227 (4169749-2), P244 (sh2001008470), P373 (Metrology), P646 (/m/0hdsz), and many others that establish its position in various classification systems. ## References 1. [Source](https://lingualibre.org/wiki//Q391365) 2. Nuovo soggettario 3. Freebase Data Dumps. 2013 4. YSO-Wikidata mapping project 5. National Library of Israel 6. KBpedia 7. GF WordNet 8. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)