20.500.12556/DKUM-40384 ULTRAZVOČNO MERJENJE NIVOJEV RAZLIČNIH TEKOČIN V SKUPNI POSODI ULTRASONIC LEVEL MEASUREMENT OF DIFFERENT LIQUIDS IN THE COMMON CONTAINER V diplomskem delu se posvečamo tematiki merjenja nivojev tekočin v rezervoarjih. Predstavljamo merilne sisteme in se podrobneje posvetimo uporabi ultrazvoka kot merilnega sredstva. Raziščemo obnašanje ultrazvoka v različnih snoveh, še posebej v tekočinah, in predstavimo metode, kako z ultrazvočnim merilnim sistemom izmeriti nivo različnih tekočin v skupni posodi, ki med sabo niso pomešane. Razvili smo tudi prototipni merilni sistem, ki je sestavljen iz razvojne plošče z mikrokrmilnikom, kateremu smo dodali merilno vezje z dvema ultrazvočnima senzorjema. Z njim smo meritve opravljali na merilni posodi, v katero smo nalili vodo in parafinsko olje. Izkazalo se je, da razvit merilni sistem zadovoljivo izmeri nivo obeh tekočin. Če bi želeli zagotoviti večjo točnost in lažjo kasnejšo digitalno obdelavo, bi veljalo poseči po bolj profesionalnih in namenskih ultrazvočnih senzorjih ter ob izpolnitvi tega pogoja morda spremeniti tudi merilno metodo. This diploma paper is dedicated to the topic of measuring fluid levels in tanks. Different measuring systems are presented, the focus being put on the use of ultrasound system as one of them. The behavior of ultrasound in different materials, focus being liquids, is explored and methods are presented of measuring the levels of various liquids, which are not mixed, in a container by means of an ultrasound measuring system. Also, a prototype measuring system was developed, consisting of a development board with a microcontroller, to which a measuring circuit with two ultrasonic sensors was added. It performed measurements in the measuring container into which water and paraffin oil were poured. As it turned out, the developed measuring system measured the level of both liquids to a satisfactory level. However, if one wanted to ensure greater accuracy and easier digital processing later on, it would be proper to use more professional ultrasonic sensors and there after, if necessary, perhaps change the measuring method. ultrazvok merjenje nivojev tekočin ultrazvočni senzor direktna digitalna sinteza ultrasound liquid level measurement ultrasonic sensor direct digital synthesis true true false [B. Vovk] Slovenski jezik Angleški jezik Diplomsko delo 2013-05-14 02:55:38 2013-05-31 12:37:55 2022-05-12 23:38:24 2021-04-20 03:38:12 2013 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 681.586.48:681.533.44(043.2) 17057046 URN:SI:UM:DK:DDNDGOQ7 UNI_Vovk_Bogdan_2013.pdf UNI_Vovk_Bogdan_2013.pdf 1 A1746F16CAB5E257E5A41952CDBAF106 5bed148552a71abfc2f7abef74550d96f364a0de5eafb1b6f3506c9b2307732d f01f688b-7c09-11eb-bb7a-00155d0001ca 20.500.12556/dkum/db0eae5f-b833-4242-b55a-8eb1cc47a0d9 https://dk.um.si/Dokument.php?lang=slv&id=55226 Fakulteta za elektrotehniko, računalništvo in informatiko 0 0 0