Ультразвуковий рівнемір рідини з одноразовим поширенням ультразвукового імпульсу в газовому середовищі

Abstract

Dissertation for the degree of candidate of technical sciences (doctor of philosophy) by specialty 05.11.13 "Devices and methods of control and determination of substances". – Volodymyr Dahl East Ukrainian University, Severodonetsk. Protection will be held at a meeting of the specialized academic council D 64.050.09 at the National Technical University "Kharkiv Polytechnic University", Kharkiv, 2018. The dissertation is devoted to the solution of an important scientific and applied problem- development of ultrasonic level gauge liquids, which allows you to increase efficiency use of containers at the expense of reduction of the zone of insensitivity, expanding the range and decrease measurement errors. The essence of the work level gauge consist in one-time spread ultrasonic pulse in a gas environment. Investigated dynamic processes, occurring in ultrasound converters, and their mathematical models are obtained. Based on the method zero gradient obtained mathematical models ultrasonic level gauge liquids in an analytical form. Proposed programmatic reference algorithm, which can significantly reduce the area of insensitivity and measurement errors, which are caused by internal and external factors. The algorithms of processing of measuring information and software of the level gauge are developed.