1. Non-disruptive and null-deflection mass flow measurement by a pressure compensation technique
- Author
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Prasanna, U.R. and Umanand, L.
- Subjects
- *
MASS (Physics) , *FLOW meters , *FLUID dynamic measurements , *FEEDBACK control systems , *PRESSURE , *SYSTEM analysis , *BOND graphs - Abstract
Abstract: Accurate mass flow measurement is very important in various monitoring and control applications. This paper proposes a novel method of fluid flow measurement by compensating the pressure drop across the ends of measuring unit using a compensating pump. The pressure drop due to the flow is balanced by a feedback control loop. This is a null-deflection type of measurement. As the insertion of such a measuring unit does not affect the functioning of the systems, this is also a non-disruptive flow measurement method. The implementation and design of such a unit are discussed. The system is modeled and simulated using the bond graph technique and it is experimentally validated. [Copyright &y& Elsevier]
- Published
- 2010
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