Investigation of the behavior of a magnetic fluid in displacement and force transducers

Journal Article · Fri Jan 01 00:00:00 EST 1988 · Magnetohydrodynamics (Engl. Transl.); (United States)

OSTI ID:6155625

Bashtovoi, V G; Mikhalev, V P; Reks, A G

The behavior of a drop of magnetic fluid in a capillary tube was investigated with reference to displacement and force transducers. The design of the sensing element of a magnetic fluid transducer was examined to investigate the shape of the meniscus of the column of magnetic fluid in a glass capillary tube under a longitudinal uniform magnetic field stress, the effect of magnetization of the fluid on drop elongation in the tube, the dependence of magnetic field strength and gradient on the current of the electromagnet for various points of the magnetic system gap, and the relation between the displacement of the magnetic fluid and the measurable force of the field stress. Experiments showed that the shape of the cylindrical column of magnetic fluid in the capillary tube depended substantially not only on the longitudinal uniform magnetic field stress but also on orientation of the column relative to the field. Fluid MMT-52 was used (magnetic phase-magnetite, stabilizer-oleic acid). One of the conditions necessary for its reliable operation was a convex shape of the magnetic fluid meniscus. It was found that transducer magnetic systems with a transverse field with respect to the sensing element were preferable since the magnetic fluid in the column retains its shape.

• OSTI ID: 6155625
• Journal Information: Magnetohydrodynamics (Engl. Transl.); (United States), Vol. 23:3; Other Information: Translated from Magn. Gidrodin.; 23: No. 3, 81-85(Jul-Sep 1987)
• Country of Publication: United States
• Language: English

Related Subjects

47 OTHER INSTRUMENTATION
DROPLETS
CAPILLARY FLOW
MAGNETIC LIQUIDS
TRANSDUCERS
MAGNETOHYDRODYNAMICS
DESIGN
ELONGATION
MAGNETIC FIELDS
MAGNETITE
MAGNETIZATION
OLEIC ACID
SHAPE
SOLENOIDS
STRESSES
SURFACE TENSION
TUBES
CARBOXYLIC ACIDS
CHALCOGENIDES
ELECTRIC COILS
ELECTRICAL EQUIPMENT
EQUIPMENT
FLUID FLOW
FLUID MECHANICS
FLUIDS
HYDRODYNAMICS
IRON COMPOUNDS
IRON ORES
IRON OXIDES
LIQUIDS
MAGNETIC MATERIALS
MATERIALS
MECHANICS
MINERALS
MONOCARBOXYLIC ACIDS
ORES
ORGANIC ACIDS
ORGANIC COMPOUNDS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PARTICLES
SURFACE PROPERTIES
TRANSITION ELEMENT COMPOUNDS
440300* - Miscellaneous Instruments- (-1989)