Analysis of edge effect of ultrasonic probe
2019
The advantages of ultrasonic testing technology for nuclear industry are summarized, and the application methods, main functions and comprehensive properties of common instruments, test blocks, couplers and ultrasonic probes are summarized in this paper. At the same time, the edge effect of the probe which is often encountered in the field inspection process is compared and studied. The edge effect of 2MHz probe is analyzed by using CSK-IA standard test block. In this paper, ultrasonic probes with different angles and different chip sizes were tested. The results showed that there was no edge effect in the ultrasonic straight probe, and the edge effect was strongest in the chip size of 10*10 and the Angle of 70° oblique probe, and the maximum amplitude difference was 6dB. In addition, the experimental results also confirmed that the edge effect has a certain relationship with the size of the chip.The advantages of ultrasonic testing technology for nuclear industry are summarized, and the application methods, main functions and comprehensive properties of common instruments, test blocks, couplers and ultrasonic probes are summarized in this paper. At the same time, the edge effect of the probe which is often encountered in the field inspection process is compared and studied. The edge effect of 2MHz probe is analyzed by using CSK-IA standard test block. In this paper, ultrasonic probes with different angles and different chip sizes were tested. The results showed that there was no edge effect in the ultrasonic straight probe, and the edge effect was strongest in the chip size of 10*10 and the Angle of 70° oblique probe, and the maximum amplitude difference was 6dB. In addition, the experimental results also confirmed that the edge effect has a certain relationship with the size of the chip.
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