Naslov
ULTRASOUND VELOCITY MEASUREMENT OF CALIBRATION BLOCK NO.1 IN ACCORDANCE TO THE STANDARD HRN EN ISO 2400

Autori
Mihaljević, Morana ; Markučič, Damir

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
MTECH INTERNATIONAL CONFERENCE ON MATERIALS / Kovačić, Saša ; Kurtela, Marin ; Markuičič, Damir ; Sakoman, Matija - Zagreb, 2017

Skup
MTECH INTERNATIONAL CONFERENCE ON MATERIALS

Mjesto i datum
Zadar, Hrvatska, 04.10.2017. - 07.10.2017

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
ultrasonic, calibration block, ultrasonic velocity

Sažetak
In this paper we comment requirements for calibration blocks in accordance to the standards HRN EN ISO 2400 (Specification for calibration block No. 1), HRN EN ISO 7963 (Specification for calibration block No. 2) and HRN EN ISO 16946 (Specification for step wedge calibration block). By comparing the requirements given by these standards it is obvious that some important reference values for calibration blocks are similar while some specifications are not technically uniform. With the scope to verify the ultrasound velocity in accordance to the requirements of standards HRN EN ISO 2400 the time of flight of a short ultrasound pulse is measured on two different calibration blocks V1. Measurement results confirmed that the ultrasound velocity are within a tolerance of 0, 2 % (±12 m/s) for compressional waves. Furthermore, there is not significant difference between measurement spots but there is between calibration blocks.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo

POVEZANOST RADA