作者: George V Copland , Carl W Zimmerman
DOI:
关键词: Pulse (physics) 、 Metering mode 、 Acoustics 、 Flow measurement 、 Mathematics 、 Control theory 、 Flow (mathematics) 、 Transducer 、 AND gate 、 Fluid dynamics 、 Signal
摘要: A fluid flow metering method and system using digital signals logic for producing a compensated manifestation of by the mathematical multiplication two or more sensed parameters, one parameter being rate other parameters related to condition such as its constituency, pressure, density, dielectric constant, temperature like, where are represented series electrical pulses. The output signal pulses flowmeter flow, used gate packets high frequency from transducer. duration pulse packet is designed be less than spacing between adjacent at maximum rate, exact number in each In embodiment, function time which case may gated continuous having fluid. recorded first counter provide gross flow. second Subtraction trains through suitable scalers can yield directly same units providing transducer linearizing circuit bearing friction compensating optionally incorporated described system.