Ultrasonic measurement of wall thickness

U radu je analizirana metoda ultrazvučnog mjerenja debljine stijenke, a rad se sastoji od teorijskog i eksperimentalnog dijela. U teorijskom dijelu dan je osvrt na kontrolu bez razaranja sa naglaskom na ultrazvučnu metodu. Opisan je princip rada ultrazvuka, metoda mjerenja debljine stijenke i oprema koja se koristi prilikom mjerenja. U eksperimentalnom dijelu mjerenje debljine stijenke izvršeno je na rezervoaru koji je već bio u upotrebi, a sad prenamijenjen u druge svrhe. Nakon površinske obrade i sanacije grešaka uslijedilo je mjerenje na svakom saniranom mjestu. Posebna pažnja je usmjerena prema kriteriju prihvatljivosti i tolerancijama koje su propisane normom. Prema analizi rezultata eksperimentalnog rada donijet je zaključak o prednosti i nedostatku ove metode.The paper describes the method of ultrasonic measurement of the thickness of the wall. The work consists of a theoretical and practical part. Theoretical part describes methods of nondestructive control with an emphasis on the ultrasound method. The principle of ultrasonic measurement of wall thickness and the equipment used for ultrasonic testing are described. In the practical part, a wall thickness measurement was performed on the tank. The tank was already in operation and then changed for other purposes. After the restoration of the tank, we measured the thickness of the walls on each of the sanitized parts. Attention was drawn to the eligibility criteria and the tolerance prescribed by the norm. Based on the practical work, the results were analyzed and a conclusion was drawn on the advantages and disadvantages of this method