DEVICE FOR MEASURING ADIABATIC COMPRESSIBILITY OF FLUID Russian patent published in 1994 - IPC

FIELD: measuring instruments. SUBSTANCE: device has generator of sinusoidal oscillations, power amplifier and measuring compressing chamber connected in series. The chamber is provided with deforming unit, diaphragm and pressure gauge. The diaphragm is connected with a meter of displacement. The meter is made of an electronic unit. The deforming unit is made of magnetostriction converter which consists of solenoid and core and made of pack of ferrite rings. The deforming unit is coupled mechanically with the measuring compressing chamber. The meter of displacement is made of a optoelectronic system. EFFECT: enhanced accuracy of measuring. 3 cl, 1 dwg