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Table 3 Thickness measurement of Cr25Mo3Ti at different temperatures

From: Variational Wavelet Ensemble Empirical (VWEE) Denoising Method for Electromagnetic Ultrasonic Signal in High-Temperature Environment with Low-Voltage Excitation

Temperature (℃)

Acoustic Speed [30] (m/s)

Calculated thickness (mm)

Actual thickness (mm)

Error (%)

25

3246

60.25

60

0.4

100

3122

59.57

60.975

2.3

300

3038

59.75

60.994

2.0

500

2870

59.84

61.013

1.8

600

2795

61.62

61.033

0.9

700

2656

61.77

61.062

1.1