Accession Number : AD0618072

Title :   FEASIBILITY STUDY OF TWO NULLING PRESSURE MEASURING SYSTEMS.

Descriptive Note : Interim technical rept. for Feb-Jul 63,

Corporate Author : CINCINNATI UNIV OHIO

Personal Author(s) : Brown,David L.

Report Date : MAY 1965

Pagination or Media Count : 67

Abstract : The purpose of the study was to investigate the feasibility of developing a pressure measuring system which operated on a nulling principle with nulling capabilities of 0.01 mm Hg. An additional specification employed was that the entire system be small enough to fit in a wind tunnel model or model support system in order to reduce the time-lag. Two systems were investigated. The first used a known pressure as the nulling medium and the second system utilized an electrostatic pressure for this purpose. A working model of the first system was developed and tested. However, attempts to develop a working model utilizing the latter principle were unsuccessful. (Author)

Descriptors :   (*PRESSURE GAGES, FEASIBILITY STUDIES), (*WIND TUNNELS, PRESSURE GAGES), PRESSURE SWITCHES, ELECTROSTATICS, TIME LAG THEORY, WIND TUNNEL MODELS, DIELECTRICS

Distribution Statement : APPROVED FOR PUBLIC RELEASE