From: Study on Deterioration Characteristics and Fracturing Mechanism of Concrete Under Liquid Nitrogen Cold Shock
Parameters
Value
SEQ
CPMG
SF/MHz
20
O1/Hz
732,970.31
P1/us
5
TD
500,004
PRG
1
TW/ms
3000
P2/us
12
TE/ms
0.1
NECH
15,000
SW/KHz
333.333
RFD/ms
0.020
RG1(db)
20.0
DRG1
2
NS
16