Early Age Concrete Strength Monitoring Using Power Spectral Density and Wavelet Packet Analysis

Table 2

The parameters of signal acquisition and filtering.

Incentive parameters		Acquisition parameter		Filtering parameter
Voltage	10 V	Frequency	1 MHz	Filter	Butterworth
Range	100 kHz–200 kHz	Length	512 k	Type	Bandpass
Frequency	0.2 kHz	Sampling time	524 ms	Order	5
Step size	1 ms	Trigger mode	Normal	Range	100 kHz–200 kHz