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Proceedings Paper

Some technical characteristics of magnetic fluids transducers for aerodynamic measurements
Author(s): Nicolae Calin Popa; Ali Siblini; Luc Jorat
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Paper Abstract

Inductive transducers with magnetic fluids (MF) for aerodynamic measurements have as essential components one or two pairs of identical electrical coils of circular cross section, uniformly wound. The carcasses of every pair of coils have the role of vertical cylindrical reservoir and communicate at the bottom creating a certical U-shaped tube. At the equilibrium this tuve is half filled with MF. The MF has the role of a magnetic liquid core. This U system measure a pressure difference in gases at the top ends of the carcasses, this one is proportional to the difference between the inductances of the coils. For these transducers the paper presents the mechanical functioning principle the detailed correction solution for inclination and acceleration, a theoretical electronic measuring system having only one element for zero adjustment and also some technical characteristics of these transducers obtained by a numerical simulation method.

Paper Details

Date Published: 11 March 2003
PDF: 11 pages
Proc. SPIE 4946, Transducing Materials and Devices, (11 March 2003); doi: 10.1117/12.468260
Show Author Affiliations
Nicolae Calin Popa, Univ. Jean Monnet and Romanian Academy (France)
Ali Siblini, Romanian Academy (Romania)
Luc Jorat, Romanian Academy (Romania)


Published in SPIE Proceedings Vol. 4946:
Transducing Materials and Devices

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