Method and apparatus for measuring minute gas flows and/or accumulations wherein a gas flow is bubbled through a defined path in separated form and a sensor is used to detect and count each bubble. The bubble count signal can be used to calculate gas accumulation, or to calculate gas flow rate if made during a defined time period, or to meter the flow of the gas to a point of utilization.
Board of Trustees of the University of Arkansas (Little Rock, AR)
Kuss, Mark L. and Young, James C., "Method and apparatus for measuring gas flow using bubble volume" (1992). Patents Granted. 245.