Objemové průtokoměry v průmyslu

Abstract

This diploma thesis deals with flow measurement by various methods and devices. The thesis contains literary research, which presents various measuring instruments, measuring methods and positives and negatives. An ultrasound flowmeter based on the Doppler effect and a measuring system is required to test the flowmeter with air and liquid is used in the first part of practical measurment. All measurements were conducted in laboratory conditions and are processed in tables and graphs. At the end of the thesis it is described in which working area the flowmeter works without problems and what causes the wrong operation outside the working area.