Patent ID: 8689624

Claim:
A level sensor assembly for measuring the level of a liquid in a tank, the liquid defining a fluid interface with another fluid, the system comprising: an ultrasound transducer assembly for emitting ultrasound pulses in the tank, along at least one detecting path, for receiving ultrasound echoes indicative of at a reflection of the ultrasound pulses from a surface within the liquid and for producing echo signals indicative of the fluid interface; a mounting assembly that is removably attachable to the tank outside thereof for operatively and removably mounting in a quick connect manner the ultrasound transducer assembly to the tank outside thereof for ultrasound measurement; the mounting assembly including a resilient contact layer mounted to the transducer assembly within the at least one detecting path for contacting the tank when the level sensor assembly is mounted thereto, yielding a tight coupling between the transducer assembly and the tank that allows transmission of ultrasound waves from the ultrasound transducer assembly through the tank; wherein the resilient contact layer is in the form of a deformable liner secured to the transducer assembly; the mounting assembly further comprising a housing body that houses the ultrasound transducer assembly therein, and a biasing element secured to the housing body for forcing a compression of the transducer assembly onto the tank via the deformable liner when the mounting assembly is mounted to the tank; and a controller coupled to the ultrasound transducer assembly for receiving the echo signals and for determining a position of the fluid interface therewith; the level of the liquid being defined by the position of the fluid interface.