Accession Number : AD0284328

Title :   A PORTABLE TEMPERATURE INDICATOR

Corporate Author : JOHNS HOPKINS UNIV BALTIMORE MD CHESAPEAKE BAY INST

Personal Author(s) : SCHIEMER,E.W.

Report Date : AUG 1962

Pagination or Media Count : 1

Abstract : A battery-powered direct-reading temperature indicator for use in sea water to a depth of 200 feet has been developed. Range is from 0 to 32 C; indication is a four-digit display which can be read directly to ! 0.15 C, or to ! 0.02 C from a correction curve. Temperature is sensed by a glass-cased thermistor on a 200-foot length of cable; resistance of the thermistor is determined by a manually balanced Wheatstone bridge. (Author)

Descriptors :   *THERMISTORS, *THERMOMETERS, ELECTRIC BRIDGES, RECORDING SYSTEMS, TEMPERATURE, UNDERWATER EQUIPMENT

Distribution Statement : APPROVED FOR PUBLIC RELEASE