A PORTABLE TEMPERATURE INDICATOR
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)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1962
- Accession Number
- AD0284328
Entities
People
- E.w. Schiemer
Organizations
- Johns Hopkins University