TABLE OF CONTENTS 
INSSHNPUNGINSS 6 Sar Ga Bod ded ob to" olsol OOO” GO. Clo) HNO MONIO Nd GoM 5 6 
ID{HUR OO UCHMLON | Giga ceo ONG) 5 a Go oO Oo bo Ao 6 Gb ao OO O80 6 
PART Alen GENERAL) SPECTEICATTIONS) Wo %c0 vs) cc) o/c) ale) el 0) oll ee tell elite 
BAREEER PIRZORLECTRICTGAGES! Mier 0-) clei ollie: tlm atl Mlisf Namie el tallte 
INSUD Qo. Mijutsieleh(Oh Ga) IANS) BGG 6 6 Gio G6 Go Ou oD o8o-0 0 6 oc 
an 30dy Beis) GINGA CUNO 5 6 95 6 > Ce OG 8G 0 co) Guoe O OF 080 oo o-oo 
Wet Gy otet GHOR NTE I (UNG 5 & dg No Oo 6 oe ct sG ob Oo 6 oO 0 
PRECAUTIONS IN THE USE OF PIEZOELECTRIC GAGES ......... 
THE EMBaRESTS TANCE GAGE Veit testa ofc) ne ele) el foe oie onan 
PART 3. CABLES AND RECORDING CHANNELS ......-++-++-+e6-. 
TYPES OF DISTORTION OF A GAGE SIGNAL .......4++4+2446-. 
DISTORTIONS DUE TO THE TRANSMISSION LINE .......... 
DISTORTIONS DUE TO MECHANICAL DISTURBANCE OF THE CABLE... . 
DISTORTION DUE TO INSUFFICIENT TIME CONSTANT . . . iri 6 
DISTORTIONS DUE TO FREQUENCY RESPONSE OF AMPLIFIERS .... 
THE MBS REC ORDUNGMCHANNE Dn eteen sl efit! test =)iteite) ielfeyMte! fellfe intel ten ie /ie 
PART 4. CADLEBRATION OF THE PRESSURE GAGES . . ......+s-s - 
PRESSUREMAPRPARATUS) steer sic eiielielits ie ayo ON a One oo. Oc 
CIRCUITS FOR MEASURING THE OUTPUT OF THE GAGES ........ 
CALIBRATION OF THE PIEZOELECTRIC GAGES .......+2444-. 
OscdaliographiiceReCOralng rc ren en cn teal iol ie oie ono EolTe 
Quadrant ElectrometGer ys yey cic ci el el re) eine cel io) Kol tol tonne 
Valores 556 65 oo oo oO OOOO bo 
Program for Further Piezoelectric Calibration Studies 
CALIBRATION OF THE GLASS RESISTANCE GAGE .......4.4.. 
PART 5. GAGE PERFORMANCE IN TESTS . .... «2+ «2+ «© «© « © « © «@ 
UNDERWATER EXPLOSION TESTING . . «. «+» « «© «© «© «© «© «© © ew « 
PRESSURES' JN OPEN WATER <5 3 sj = @ = « «| « © «© « las 
PRESSURES AT A SURFACE OF AN UNDERWATER STRUCTURE ... . 
USE OF THE TOURMALINE GAGE IN STUDYING A SLOWER PRESSURE CHANGE . 
REPERENCESIA;. scuals tench ot on ietbeh don cle lep)iotaretiele ct ‘sys yo uici ve! pia) wen ment ion odie 
APPENDIX - CONSTRUCTION OF THE QUARTZ PIEZOELECTRIC GAGE ..... 
DESCRIPTION OF THE PRINCIPAL PARTS ......+..4.24.+2s4-2 
IASSEMB YS ORs THES GAGE iar lou vol oliieuko oii tel te ltokl ol Mell (eile) Welt seni 
STATIC TESTING OF THE GAGE ..... 510 Oa GH ONO 0/6 
SURFACE-PRESSURE MODIFICATION OF THE Quartz GAGE... s+ «= @ 
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