Analysis of calibration and verification indirect methods of ultrasonic flowmeters

This article describes the features of the indirect calibration of the ultrasonic liquid flowmeters. This is due to the impossibility of carrying out calibration or verification of the flowmeter on a special pouring installation system or need for high costs to perform this operation. If important nuances were not taken into account when carrying out these procedures, this could lead to a significant exceeding of a permissible error. In turn, it leads to a negative attitude of users to ultrasonic methods of flow measurement in general. Within the framework of this article, the task is to increase the degree of confidence in the calibration methods used.