DEVICE FOR AUTOMATIC MEASUREMENTS OF DENSITY OF FLUID Russian patent published in 2008 - IPC G01N9/10 

FIELD: measuring technique.

SUBSTANCE: device for automatic measurements of fluid density comprises tank filled with fluid to be analyzed, float mounted inside the tank, electromagnet whose armature is connected with the float, unit for control of winding current, indication unit, and tank filled with a reference fluid that receives the similar float. The floats are interconnected through ties connected with the equal-arm rocker mounted on the bearing for permitting arresting the rocks of the rocker and provided with the position pickup that is connected with the input of the current controller. The armature of the electromagnet is mounted on the float of one of the vessels, and the vessel is provided with the winding of the electromagnet so that the armature and the winding form a magnetic circuit. The float of the second vessel is provided with the weight equivalent of the armature or made of a member identical to the float of the first vessel. The current shunt is connected between the current controller and winding of the electromagnet and to the indication unit.

EFFECT: enhanced reliability.

1 cl, 1 dwg