title: Actively generated noise liquid flowmeter.
abstract: A new noise flowmeter with two transducers has been tested experimentally in water. It detects the noises generated by the interaction between artificially introduced air bubbles and a built-in obstacle with a downstream transducer, and differentiates them from the external noises detected by the upstream transducer in a pipe. The system includes processing instrumentation with functions such as averaging and difference-operating for reduction of external noise effects.
authors.affiliation: Nippon Inst. of Technol., Saitama.
authors.forename: S
authors.initials: S
authors.lastname: Tanisawa
authors.forename: H
authors.initials: H
authors.lastname: Hirose
authors.forename: N
authors.initials: N
authors.lastname: Yoshihisa