METHODS OF ELECTROMAGNETIC INDUCTION APPLIED TO THE MEASUREMENT OF SUPERSONIC VELOCITIES IN SHOCK TUNNELS.
Abstract
A technique based on electromagnetic induction is proposed to measure the velocity of the flow in a hypersonic shock tunnel. The expanded flow in the tunnel test section has a sufficiently high conductivity level to allow the generation of an MHD voltage in the presence of a magnetic field, which can then be used to indicate the flow velocity. To overcome charge effects on the electrodes, the magnetohydrodynamic voltage from such a device should be of the order of 100 v. For a true open circuit reading the input impedence of the external circuit should be very high. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1965
- Accession Number
- AD0622665
Entities
People
- M. A. Patrick
- R. J. Parsons
Organizations
- University of Sheffield