Download (6Mb) - NERC Open Research Archive
Download (6Mb) - NERC Open Research Archive
Download (6Mb) - NERC Open Research Archive
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
*<br />
Table 7.2 Preliminary results from ARE pressure gauges<br />
a) 4500lb explosion<br />
Measured * Surface<br />
Long Sample Time<br />
Approximate<br />
Gauge No Depth Standoff Cutoff (ms) Pressure (MPa)<br />
188 5.5 0.66<br />
189 7.6 0.66<br />
190 9.0 0.69<br />
191 10.0 0.59<br />
192 12.8 0.37<br />
193 14.2 0.21<br />
Precursor appears 27.5ms before main pressure pulse<br />
Measured bubble period: 711 ms<br />
a) 900lb explosion<br />
Measured<br />
Gauge No Depth Standoff<br />
188<br />
189<br />
190<br />
191<br />
192<br />
193<br />
Surface<br />
Long Sample Time<br />
Approximate<br />
Cutoff (ms) Pressure (MPa)<br />
10.9 1.50<br />
15.6 1. 73<br />
20.1 1.55<br />
24.1 1.36<br />
27.9 1.10<br />
30.8 0.89<br />
Precursor appears approx. 3ms before main pressure pulse<br />
Measured bubble period: 388.7 ms<br />
Calculated, based on an assumed velocity in sea water of 5000 ft/s<br />
(1. 5240 m/s)<br />
70
Change language