ELECTRIC CAPACITY LEVER INDICATOR Russian patent published in 2002 - IPC

FIELD: instrument and automobile industry. SUBSTANCE: electric capacity level indicator contains level gauge of fluid, calibrating capacitor, control and commutation circuits, two coaxial communication lines, inductance coil, digital indicator and operational device, second capacitor having capacitance C_o, and voltage follower. The first communication line with its one end is connected to the second terminals of the indicator and calibrating capacitor. The second capacitor is connected to the inductance coil in parallel. The first terminal of the inductance coil is connected together with center cable conductor of the second coaxial communication line and with inlet of the voltage follower. Outlet of the voltage follower is connected to the screen of the second communication line. EFFECT: enhanced measuring speed and accuracy. 2 cl, 1 dwg