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A mass flow controller is designed and calibrated to control a specific type of liquid or gas at a particular range of flow rates. The MFC can be given a setpoint from 0 to 100% of its full scale range but is typically operated in the 10 to 90% of full scale where the best accuracy is achieved.
In a nozzle or other constriction, the discharge coefficient (also known as coefficient of discharge or efflux coefficient) is the ratio of the actual discharge to the ideal discharge, [1] i.e., the ratio of the mass flow rate at the discharge end of the nozzle to that of an ideal nozzle which expands an identical working fluid from the same initial conditions to the same exit pressures.
The metre, kilogram, second system of units, also known more briefly as MKS units or the MKS system, [1] [2] [3] is a physical system of measurement based on the metre, kilogram, and second (MKS) as base units. Distances are described in terms of metres, mass in terms of kilograms and time in seconds.
MKS Instruments was founded in 1961 as a provider of products and technologies used to measure, control, power, and monitor critical process parameters of advanced manufacturing processes. [3] In 2001, the company acquired Emerson Electric's ENI Division which makes solid-state RF and DC plasma power supplies, networks and instruments. [4] [5]
Brooks Instrument is a manufacturer of flow control and measurement equipment based in Hatfield, PA.It was a division of Emerson (NYSE:EMR) until December 31, 2007 when it was sold to American Industrial Partners Capital Fund IV (“AIP”) for approximately $100 million in cash.
A nine-hour blackout in Quebec in March 1989 was caused by a much more modest coronal mass ejection. When could a superflare occur? The new study does not say when the sun might emit a superflare.
The snow, sleet and ice that swept from the Plains to the East Coast in the past four days has mostly ended, but dangerously cold temperatures are coming in their wake, forecasters say.
On a constant speed line of a compressor, the mass flow rate decreases as the pressure delivered by the compressor gets higher. Internal flows of the compressor are in a very large adverse pressure gradient which tends to destabilize the flow and cause flow separation. A fully developed compressor surge can be modeled as a one-dimensional ...