instruments

Design of Instrument Air Systems

What is Instrument Air? Most power plants and process industries require the instrument air to run their process.   The instrument air is compressed air that is free from moisture and dust particles. The pneumatic equipment such as control valves, solenoid-operated valves, cylinders, actuators, and positioners require the instrument air to control the process. It is …

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Density measuring devices

Introduction In this session we are going to discuss about density measuring devices ,before that we need to go through the basics. Density ρ  of a material is defined as the mass per unit volume. Units of density are pounds (slug) per cubic foot [lb (slug)/ft3] or kilogram per cubic meter (kg/m3). Specific weight γ is defined …

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