1474 
IV. 
V. 
DISTORTION ASSOCIATED WITH REFLECTION 
FROM THE SEA SURFACE 
15. Introduction 
16. Bulk cavitation 
17. Sharpness of the negative wave front 
ACKNOWLEDGMENTS 
APPENDIX 
Ihe 
REFERE 
DISTRI 
AN IMPROVED MICROCOULOMETER FOR THE 
CALIBRATION OF PIEZOELECTRIC GAUGES 
. Introduction 
Description of the circuit 
. sensitivity 
. Further modification and improve- 
ments 
. Use of a speedomax or brown re- 
corder as a detecting device 
Ww FUNF 
NCES 
BUTION LIST 
LIST OF FIGURES 
Oblique reflection of a plane wave 
at a plane interface 
Comparison of the experimental and 
theoretical pressure-time curves in- 
cluding higher order reflections 
Pressure-time records showing 
distortion of bottom reflection with 
increasing angle of incidence 
Theoretical pressure-time curves for 
bottom reflection of an exponential 
shock wave 
Simple geometrical arrangement of 
source and receiver 
Distorted reflection of plane ex- 
ponential shock wave 
= {Vo i= 
Page 
103 
106, 107 
108 
16,12 
12 
al 
31 
34 
