LIQUID DENSITY AND LEVEL DETECTING DEVICE HAVING DUAL BUOY

摘要

PURPOSE: A liquid density and level detecting device having dual buoy is provided measure the liquid density and liquid level of a tank in rear time base although the liquid level changes. CONSTITUTION: A liquid density and level detecting device having dual buoy comprises a central bar(3), a long buoy(4), a short buoy(5) and a control box(2). The central bar is arranged so that a part can be submerged in the liquid saved in the tank. A coil antenna is installed in the central bar in a longitudinal direction. A first resonance circuit resonating in the first frequency is built in the long buoy.