The ST75 Series thermal flow meters are a compact, low cost solution for accurate, repeatable direct mass flow measurement of air and gases. These in-line (spool-piece) style flow meters have no ...

What Is On-Balance Volume? On-balance volume (OBV), a momentum indicator that measures positive and negative volume flow, was ...

The basis of good flow meter selection is a clear understanding of the parameters surrounding a particular ... Q = v x A Positive Displacement flow meters measure gas flow by precision-fitted rotors ...

On-balance volume (OBV), a momentum indicator that measures positive and negative volume flow, was developed by Joseph Granville and introduced in 1963 to the technical community inside the pages ...