Apparatus and method for measuring the flow velocity of a fluid in a pipe

US11215489B2 · kind B2 · utility

Assignee

• ABB Schweiz AG · CH

Inventors

• Detlef Pape · Nussbaumen, CH
• Philipp Nenninger · Karlsruhe, DE
• Miklos Lenner · Adetswil, CH

Key dates

• Filing date: Sep 5, 2019
• Grant date: Jan 4, 2022
• Expiry date: Apr 15, 2040

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2291/2634
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

An apparatus for measuring a flow velocity of a fluid in a pipe includes: a housing in which a first ultrasonic transducer and a second ultrasonic transducer are arranged at a predefined distance to each other, the first ultrasonic transducer including a first sound transmitting element and a transmitter/receiver unit mounted thereto which emit first ultrasonic pulses at different angles, the second ultrasonic transducer receiving the first ultrasonic pulses and generating a first electronic output signal, the second ultrasonic transducer including a second sound transmitting element and a transmitter/receiver unit mounted thereto which emit second ultrasonic pulses at different angles, the first ultrasonic transducer receiving the second ultrasonic pulses and generating a second electronic output signal; and a control and evaluation unit electrically coupled to the first and second transducers, the control and evaluation unit tuning the first transducer to generate a first electronic output signal of a maximum amplitude.