Method for verifying the reliability of measurement data of an ultrasonic flow measurement based on the travel-time difference method and ultrasonic flow measurement device
US9885593B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 25, 2013 |
| Grant date | Feb 6, 2018 |
| Priority date | — |
| Expiry date | Jul 1, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/667
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for verifying the reliability of ascertained measurement data of an ultrasonic, flow measurement made according to the travel-time difference method, wherein an ultrasonic flow measuring device having at least two ultrasonic transducers is used to transmit and receive ultrasonic signals inclined in or counter to a flow direction of a measured medium. A first ultrasound disturbance signal is registered within a first time window before receiving a first ultrasound wanted signal, and a second ultrasound disturbance signal is registered within a second time window before receiving a second ultrasound wanted signal. A quality criterion is ascertained for evaluating the measurement uncertainty of a measured value proportional to the travel-time difference ascertained from the first and second ultrasound wanted signals, wherein the ascertaining of the quality criterion includes a difference forming between the first and second disturbance signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.