Apparatus for measuring the residual magnetization vector in cylindrical coordinates of a geological core sample
AssigneeCommissariat a l'Energie Atomique
InventorsRoland Blanpain, Patrick Le Masson, Jacques Pocachard, Bertrand Sichler
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Abstract
Apparatus for measuring the residual magnetization vector in cylindrical coordinates of a geological core sample. It comprises a carriage carrying a solenoid made to longitudinally vibrate for determining the longitudinal component of the vector and ferromagnetic transducers which determine the radial component and the phase of the radial component of the vector by rotating the core sample. The measurements are automatically integrated.
Claims4
Apparatus for measuring the residual magnetization vector in cylindrical coordinates (x, r, .theta.) of the geological core sample (7) about an axis of said sample (7), the residual magnetization vector having a longitudinal component (x) along said axis and a radial component (r) perpendicular to said axis, said radial component making an angular phase (.theta.) with a preset angular reference, said apparatus comprising:
- means (2, 3, 6) for supporting said sample (7) while rotating said sample about said axis, a carriage (21) sliding along said axis of said core sample and provided with transducers (38) for measuring the radial component and the phase of said vector by variation during rotation of said sample of a magnetic field generated by said radial component and detected by said transducers, said carriage being also provided with a solenoid (37) for measuring the longitudinal component (x), said solenoid being vibrated longitudinally to generate therein an electric current depending from induction by said longitudinal component, and means (39) for measuring said electric current in said solenoid.
Dependencies are inferred from the claim text.