Method for measuring flow

TL;DR: In this article, a mass flow controller may be commanded to a specified flow and flow measurement commenced, and various measurements taken during the interval may then be used to calculate the flow rate.

TL;DR: In this paper, the volume of liquid in a liquid reservoir of an integrated drive generator of an aircraft engine was determined by using a microprocessor and a pressure sensor, which can detect the change in pressure of the gas in the ullage volume during the interruption of one of the in flow and out flow of liquid.

TL;DR: In this paper, the authors present an embodiment of the present invention, which can comprise a primary flow measurement system, a secondary flow measurement systems in fluid communication with the primary flow measuring system and a control coupled to the primary Flow measurement system and the secondary Flow Measurement System.

TL;DR: A chest drainage apparatus (CDU) and method for accurately measuring gas flow or leakage from a patient's chest cavity even at very low or near zero flow rates is disclosed in this paper, where a microcomputer controller, responsive to the pressure measured by the pressure transducer, causes the valve to disconnect the vacuum source from the CDU when the gas pressure in the collection chamber is less than a first predetermined threshold.

TL;DR: In this paper, the authors describe a system for measuring the contents of a pair of containers such as gasoline tanks which may be located in opposite wings of an airplane or the like.