A TECHNIQUE FOR OBTAINING THE VELOCITY-ELECTRICAL CONDUCTIVITY PROFILE
Abstract
The use of a meter of suitable design may make it possible to measure the pro ile of velocity and electrical conductivity of ionized air flowing over a re-entry vehicle. Three methods are discussed: the multiple primary coil; the multiple sensing coil; and the variable displacement technique. For the variable displacement method, the sigma u profile (where sigma is the average conductivity mhos/m and u is the average velocity m/sec) is obtained in terms of the Fourier transform of the meter signal and the magnetic field geometry. Experimental results obtained using the multiple sensing coil method show favorable sensitivity as indicated by more than a factor of two change in signal between the outermost coils. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 30, 1961
- Accession Number
- AD0261135
Entities
People
- A.e. Fuhs
Organizations
- The Aerospace Corporation