Accession Number:

AD0258932

Title:

AN INSTRUMENT FOR CONTINUOUS DEEP-SEA MEASUREMENT OF VELOCITY OF SOUND, TEMPERATURE, AND PRESSURE

Descriptive Note:

Corporate Author:

NAVAL ORDNANCE TEST STATION CHINA LAKE CALIF

Personal Author(s):

Report Date:

1961-05-09

Pagination or Media Count:

1.0

Abstract:

An electronic instrument for the continuous and concurrent measurement in the ocean of velocity of sound, temperature, and pressure has been designed and tested to depths in excess of 2,000 meters. This 70-lb transistorized instrument contains three sections a modified NBS velocimeter for measuring velocity of sound, a Borg-Warner Vibrotron for pressure, and a NOTS thermistorcontrolled Wien-bridge oscillator for temperature. Outputs from the 3 sections are fm signals, mixed for single-conductor cable transmission to the surface. Velocity of sound is transmitted in the band 2,775-3,225 cps, temperature in the band 5,000-8,000 cps, and pressure in the band 9,71211,288 cps. Accuracy of measurement is sound velocity 0.3 msec, temperature 0.02 C, and pressure 1 in selected ranges of 0-1,000 and 0-2,000 psi. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE