Development of a computer interface for a clamp-on ultrasonic flow meter

The section for volume, flow and temperature at SP Technical ResearchInstitute of Sweden performs measurements of volume, flow and temperaturein liquids.Flow meters are best calibrated in its installation to take sources of error likeinstallation effects and the medium into account. If this can be done withouthaving to place measurement equipment inside the pipe it will mean severalpractical benefits.Since many years, clamp-on ultrasonic flow meters have been available on themarket. But even with today’s improvements they still have a measurementuncertainty in the measurements that is five to ten times too big to make themuseful as references for calibration procedures.This thesis focuses on analysis, using reversed engineering, of an existingclamp-on ultrasonic flow meter.The goal of the project is evaluation and further development of the ultrasonicflow meter’s existing computer interface with the purpose of offering theoption of using Microsoft Excel and Visual Basic for data acquisition andmeasurement of the flow rate of liquids.