Accession Number : AD0726115

Title :   On the Heat Budget of a Bead Thermistor at Low Pressure and Subsonic Velocity.

Descriptive Note : Final rept. 1 Mar 68-31 Mar 71,

Corporate Author : MASSACHUSETTS INST OF TECH CAMBRIDGE DEPT OF METEOROLOGY

Personal Author(s) : Joseph,Donald Lee

Report Date : 31 MAR 1971

Pagination or Media Count : 123

Abstract : Thermal interactions between the atmosphere and a falling rocket-sonde bead thermistor lead to significant errors in the indicated air temperature. In the same way the bead thermistor interacts with its support. Tests were made inside a vacuum bell jar where bead thermistors and support posts were mounted in two orientations on a whirling arm. These tests were made at low subsonic motion in a free molecule flow at 2.0 and 30.0 microns of mercury pressure. (Author)

Descriptors :   (*THERMISTORS, THERMAL PROPERTIES), (*ATMOSPHERIC SOUNDING, *METEOROLOGICAL INSTRUMENTS), (*ATMOSPHERIC TEMPERATURE, MEASUREMENT), WIND, TEST METHODS, THESES

Subject Categories : Meteorology
      Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE