Вимірювальна техніка та метрологія
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Item Metrological risks and state of the monitored objects(Lviv Politechnic Publishing House, 2022) Yatsyshyn Svyatoslav; Baitsar Roman; Lazarenko Serhiy; Lazarenko Nadiia; Mastylo RostyslavThe metrological risks of goods production are studied in the work. They are estimated conjugating with the existing technology as well as its metrological support. It is confirmed that in addition to the factors due to the processing of measurement results, the peculiarities of metrological support should be taken into account. One of the characteristic parameters of the metrological instruments is the variance of the measured value. Multiple measurements of the electrical resistance of the mentioned instruments – high-precision resistors designed for indirect measurement of current by measuring the voltage on them, using a DC bridge, were performed. The variance of obtained results is estimated, depending on the number of repeated measurements, the time interval between them, etc.Item Risks of car parts production and smart metrology(Lviv Politechnic Publishing House, 2021) Yatsyshyn Svyatoslav; Slyuz AndriyThe study of the metrological risks of the car cables’ production is provided in the current issue. It is proposed to develop several different sampling methods to form lots for the study. Their capabilities are evaluated according to selected criteria based on the available technology. The advantages of the dynamic method according to the possibilities of operative metrological workshops are shown. Certain advantageous factors of the method (e.g. percentage of cables to be measured; the lot’s waiting time, etc.) have been identified.Item Calibration of measuring channels of non-dismantling cyber-physical systems(Lviv Politechnic Publishing House, 2021) Stadnyk Bohdan; Yatsuk Vasyl; Mykyichuk Mykola; Yatsyshyn Svyatoslav; Fröhlich Tomas; Mastylo RostyslavThe analysis of the concept of Open-Science Space is carried out. The existence of ways to achieve reproducibility and traceability of research results performed by a group of worldwide situated Cyber-physical system operators/supervisors is shown. Ways to ensure the efficient operation of Cyber-physical systems as complex technological non demountable objects with high requirements for metrological characteristics have been studied. To develop the scattered cyber physical systems, the portable stable-in-time code-controlled measures of physical quantities have been studied. They have to be metrologically confirmed in the laboratory before the delivery to the site of the measuring subsystem for its calibration.Item Calibration of the ultrasonic sensor-range finder by the laser interferometer(Lviv Politechnic Publishing House, 2020) Yatsyshyn Svyatoslav; Nazarkevych Ihor; Mastylo RostyslavThe accuracy characteristics of the ultrasonic range finder are studied in the work. The latter has been calibrated by a laser interferometer. The problems that arise are described. The calibration method was implemented with the help of a measuring installation, along the rail of which an ultrasonic sensor – range finder and a laser interferometer were fixed. Key words: Sensor; Ultrasonic Rangefinder; Laser interferometer; Measuring installation; Sensor calibration.