Ultrasonic inspection of fake gold jewelry

International Nuclear Science, Technology and Engineering Conference 2017

原子能学

Ismail, Mohamad Pauzi^1 ; Sani, Suhairy^1 ; Mohd Shofri, Faris Syazwan Bin^2 ; Harun, Mohd.^3 ; Omar, Norlaili Binti^4

Agensi Nuklear Malaysia, Bangi, Malaysia^1

Universiti Putra Malaysia, Malaysia^2

Pensioner, Bandar Baru Bangi, Malaysia^3

Institut Penyelidikan Dan Perundingan YaPEIM (INPUT), Kuala Lumpur, Malaysia^4

关键词: Contact methods;    Gold jewelry;    Longitudinal wave velocity;    Ultrasonic inspections;    Ultrasonic pulse echos;    X-ray fluorescent methods;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/298/1/012025/pdf
DOI  :  10.1088/1757-899X/298/1/012025

来源: IOP

【 摘 要 】

Hollow jewelry made from combination of gold and other material was found in the market. At the outside it is made of gold and the inside layer is made of other material. X-ray fluorescent method cannot detect the inside material that was covered by gold. This paper explained the experimental result of ultrasonic inspection of fake gold used for jewelry. The ultrasonic pulse echo contact method was used to measure longitudinal wave velocity in the gold jewelry. The results of measurements are explained and discussed.