Cameron International Corporation

Sensia LLC

Sensia Netherlands B.v.

Bobbie W Griffith

Donald Roy Augenstein

Herbert Estrada

Calvin R Hastings

Herbert A Estrada

An apparatus for determining a fluid's kinematic viscosity from ultrasonic energy that has passed through the fluid of unknown viscosity along an acoustic path of known length. A computer of the apparatus determines a characteristic frequency of a received electrical signal associated with the ultrasonic energy and measures the fluid's velocity of sound. The kinematic viscosity of the fluid is determined by the computer on a continuous basis based on the characteristic frequency and the sound velocity. A method for determining a fluid's kinematic viscosity.

Method and apparatus for determining kinematic viscosity through the transmission and reception of ultrasonic energy

An ultrasonic transducer for a pipe includes an ultrasonic source which produces plane waves. The transducer includes a housing having a face at least a portion of which is curved through which the plane waves produced from the source disposed in the housing are emitted and directed outward towards the pipe's interior wall so a full cross-section of the pipe's interior can be measured. A flow meter for detecting fluid flow rates in a pipe. A method for detecting fluid flow rates in a pipe.

Ultrasonic flow meter including a transducer having conical face

Ultrasonic Flow Meter including a transducer having conical face

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Harrisville, PA, United States of America

Bobbie W Griffith