Method for ascertaining a characteristic variable for evaluating a measuring arrangement comprising a clamp-on, ultrasonic, flow measuring device and a pipe and/or for evaluating measurement operation of such a measuring arrangement

US10641641B2 · kind B2 · utility

Assignee

• Endress+Hauser Flowtec AG · CH

Inventors

• Peter Ploss · Grayslake, US
• Stefan Rupitsch · Nuremberg, DE
• Michal Bezdek · Aesch, CH
• Thomas Fröhlich · Münchenstein, CH
• Beat Kissling · Reinach, CH

Key dates

• Filing date: Apr 26, 2016
• Grant date: May 5, 2020
• Expiry date: Dec 23, 2036

Classification

• Technology area (CPC G): Physics
• CPC primary: G01F1/668
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A method for ascertaining a characteristic variable for evaluating a measuring arrangement comprising a clamp-on, ultrasonic, flow measuring device and a pipe, on which the clamp-on, ultrasonic, flow measuring device is secured, and/or for evaluating measurement operation of such a measuring arrangement, characterized by the method steps as follows: A) providing characteristic values relative to an exciter signal produced by the clamp-on, ultrasonic, flow measuring device; B) providing sensor-specific data as regards acoustic properties of one or more ultrasonic transducers of the clamp-on, ultrasonic, flow measuring device C) inputting data relative to the pipe material and the pipe wall thickness, especially inputting such data by a user, and D) ascertaining the characteristic variable from the parameters and data of steps A-C based on a mathematical model, as well as a computer program product and a clamp-on, ultrasonic, flow measuring device.