Accession Number : ADD001333
Title : Deep Sea Pressure Gauge.
Descriptive Note : Patent,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C
Personal Author(s) : Baker,Donald James , Jr ; Hill,Ivan Winfield ; Wearn,Richard B , Jr
Report Date : 28 Jun 1974
Pagination or Media Count : 10
Abstract : The patent describes a deep sea pressure gauge for measuring and recording pressure and temperature stably and accurately over long periods of time at the sea floor. A fused quartz Bourdon tube pressure sensor and a quartz crystal oscillator temperature sensor provide high stability at low power. Only pressure variations from the sea floor pressure are measured, the mirror of the Bourdon tube rotating at a rate proportional to this pressure differential and controlling an angular position transducer having a frequency output. The pressure and temperature signals measured are average values covering the time between recordings.
Descriptors : *Pressure gages, *Patents, *Oceanographic equipment, Ocean bottom, Crystal oscillators, Detectors
Subject Categories : Physical and Dynamic Oceanography
Test Facilities, Equipment and Methods
Distribution Statement : APPROVED FOR PUBLIC RELEASE