FUEL VISCOSITY MEASURING DEVICE Russian patent published in 2013 - IPC G01N11/16 G01N11/14 

FIELD: measurement equipment.

SUBSTANCE: liquid viscosity measuring device comprises a cylindrical resonant element, an excitation device, a receiving device connected through a transmission line to an amplitude detector, an analogue-to-digital converter, the input of which is connected to the output of the amplitude detector, and the output of which is connected to the first information input of the microprocessor, the first control output of microprocessor is connected to the input of analogue-to-digital converter, a microwave oscillator tuned as to frequency, connected at its input to the output of analogue-to-digital converter, and at its output through a waveguide to the excitation device. In addition, the device includes three branch pipes for inlet/outlet of investigated liquid; the first branch pipe is rigidly attached to lower end wall coaxially to vertical axis of the resonator, the second and the third branch pipes are rigidly fixed on side wall and located at the distance of 30-40 mm and 1-2 mm from the bottom of the cylindrical resonator element, a filter of parasite electromagnetic oscillations, which is made in the form of a slot on the side wall of the resonator, a device for bringing the liquid into rotation with possibility of being moved in vertical plane, and a contact device with a magnetic grab.

EFFECT: improving the accuracy of determination of kinematic fuel viscosity.

2 dwg