Synchronous Acquisition and Analysis of Ultrasonic Spectral Information for the Characterization of Particle Size Distribution

Table 2

Comparison of the sample volume median diameter measured by ultrasonic spectra and image analysis (unit: μm).

Deviation	Method	Pulse-echo		Reference reflection		Through-transmission
Approach
Attenuation	ORT	11.54(+1.5%)	0.98	11.43(+0.5%)	1.04	10.56(-7.1%)	1.03
	GA	12.36(+8.7%)	0.41	12.21(+7.3%)	0.40	10.58(-6.9%)	0.52
Phase velocity	ORT	/	/	10.27(-9.7%)	0.42	/	/
	GA	/	/	11.62(+2.2%)	0.29	/	/
Image	N/A	11.37	0.32	11.37	0.32	11.37	0.32