control and measuring devices

control and measuring devices

Универсальный англо-русский словарь. . 2011.

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  • control theory — Field of applied mathematics relevant to the control of certain physical processes and systems. It became a field in its own right in the late 1950s and early 60s. After World War II, problems arising in engineering and economics were recognized… …   Universalium

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  • National Conference on Weights and Measures — The National Conference on Weights and Measures (NCWM) is a not for profit corporation dedicated to developing and regulating the United States technical standards for weights and measures. The organization s official mission is to advance a… …   Wikipedia

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  • Control valves — are valves used to control conditions such as flow, pressure, temperature, and liquid level by fully or partially opening or closing in response to signals received from controllers that compare a setpoint to a process variable whose value is… …   Wikipedia

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  • History of timekeeping devices — For thousands of years, devices have been used to measure and keep track of time. The current sexagesimal system of time measurement dates to approximately 2000 BC, in Sumer. The Ancient Egyptians divided the day into two 12 hour periods, and… …   Wikipedia

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