The ultrasonic converter mathematical model of flow rate of flowing environment

The task of measuring the velocity of flowing environment, and therefore flow rate, is an actual task of both modern science and its various applications in the national economy. This issue is particularly urgent in the oil and gas industry, since increasing the accuracy and probability of accounting the flow rate of natural and liquefied petroleum gas, efficient use of these resources, reducing their consumption and reducing losses affects the country's energy security.
Nowadays, the use of ultrasonic measurement technology for commercial and technical needs is widespread. The analysis of scientific and technical literature shows that by measuring methods the ultrasonic flowmeters are divided into frequency, time-pulse and Doppler. Each of the above methods has certain drawbacks, the main are low precision due to the absence of a stable structure and flow fluctuations, the dependence of the sensitivity, and therefore the pulse signal frequency depending on the size of a pipeline. In pipelines of small diameter, the passage time of the pulse is small enough, which leads to low accuracy of measurement. This drawback is eliminated, using the complexity of the design, which in its turn leads to an increase in the dimensions of the device.
The analysis carried out allows us to conclude that the continuous development of industry and the high requirements for measuring equipment are considered to be of great importance for the developing modern methods and devices of acoustic control of flowing environment, including small diameter of the pipeline.
The purpose of the work is to develop a method for measuring the flowing environment flow rate based on the use of the amplitude-frequency modulation scheme and the mathematical model of the ultrasonic measuring converter.