Bunyak L. Monitoring of the temperature mode of transportation of petroleum in turnpike pipelines by the purpose of increase of an exactitude of the commercial account (record-keeping).

The thesis is devoted to creation theoretical, technological and metrological principles of the precision temperature correction for the exactitude increase to the transportation in turnpike pipelines petroleum expenditure records commercial keeping by the ultrasonic devices. The complex theoretical and mathematical simulation experimental researches, the main characteristics calculation and the transducers materials choice are represented. The temperature depending space distribution petroleum parameters ultrasonic monitoring methodology and ingeneering circuts realization in turnpike pipelines are proposed due to the record keeping accuracy increasing. The combine several ultrasonic channels time interval measurement results processing algorithms which allow to take into account the space temperature and petroleum flow rate for the petroleum expediture exactitude fluctuations increasing are represented. The ultrasonic device metrology certification principles are stated. Experimental impulse method ultrasonic temperature and expediture measuring devices with the increased precision are created.