Details Details PDF BIBTEX RIS Title Evaluation of new designed reference blocks for calibration and NDT by optical and ultrasonic techniques Journal title Metrology and Measurement Systems Yearbook 2022 Volume vol. 29 Issue No 4 Authors Barakat, Mirham A.Y. ; Abdelwahab, Mohamed ; Abdallah, Alshaimaa Waheed Affiliation Barakat, Mirham A.Y. : Ultrasonic Metrology Laboratory, National Institute of Standards PO Box: 136, Giza code 12211, Tersa Street, Haram, Giza, Egypt ; Abdelwahab, Mohamed : Line & End Secondary Standards Laboratory, National Institute of Standards PO Box: 136, Giza code 12211, Tersa Street, Haram, Giza, Egypt ; Abdallah, Alshaimaa Waheed : Line & End Secondary Standards Laboratory, National Institute of Standards PO Box: 136, Giza code 12211, Tersa Street, Haram, Giza, Egypt Keywords calibration ; reference blocks ; ultrasonic ; displacement measuring interferometer (DMI) Divisions of PAS Nauki Techniczne Coverage 719-736 Publisher Polish Academy of Sciences Committee on Metrology and Scientific Instrumentation Date 2022.12.13 Type Article Identifier DOI: 10.24425/mms.2022.143072