Accession Number : AD0288246

Title :   RELIABILITY AT SEA OF LACOSTE-ROMBERG SURFACE-SHIP GRAVITY METER S-9 WHEN ACCELEROMETER DAMPING IS 0.75 THAT OF CRITICAL

Corporate Author : TEXAS A AND M UNIV COLLEGE STATION

Personal Author(s) : DEHLINGER,PETER ; JONES,B.R.

Report Date : 20 SEP 1962

Pagination or Media Count : 1

Abstract : r ad i L C O -R O B RG URFAC - IP GRAVITY METER S-9 while its horizontal accelerometer were 0. 5 cri ically d ped. These t sts supersede those reported pr viou ly i ic cc l romet r re over p P RFOR C OF THE MET R WI H T E EW CC L ROME R IS A VERY SIGNIFICA T IMPROVEMENT OVER THAT WITH OVER MPE CCEL RO R B O H TH Y IC R O ERRORS H VE B GREATLY REDUC D HEN B ROW CORR CTIONS ARE LOW TO MODERATE. Measurements with the present meter at Browne corrections below 275 gal were found to be reliable and r uire o e pirical correc io ; o B RO CORR CTIONS GREATER THAN % GAL (3 -5 R OBSERV TO BE IN CO ST T RROR ALONG NY ONE PROFILE IN AN UNC ANGING SE . Presu bly the error a he l rg r ccel r ion i of elec ronic origin, in hic c se it can be eli i a . I v s ig tio will be made into th source of the difficulty; wh n corr c , fur r ill be a e Bro corr c io larger th g l. As a r sul of e tests, the ano ali obtai fro asure t i er S-9 since F EBRU RY, !(>< T Bro e corrections con ist ntly belo 275 gal can be considered correct in absolute value; those obtained at corrections consistently above 275 g l ca , to a fir pprogi io , b considere in ic iv of o ly v ri io bu i correct i ab oluc v lu U OR)

Descriptors :   *GRAVITY, INSTRUMENTATION, MEASUREMENT, OCEANS, RELIABILITY, SHIPS

Distribution Statement : APPROVED FOR PUBLIC RELEASE