Patent ID: 9354101
Filing Date: 2016-05-31
CPC Classification: G01F

Claim Text:
1. A device for providing a gas composition and temperature compensated acoustic measurement of the level of a liquid in a tank, comprising: a transmitter adapted to transmit acoustic signals; a receiver adapted to receive reflections of said acoustic signals; a processing circuitry connected to the transmitter and the receiver and adapted to determine the level of the liquid based on the transmitted acoustic signals and the received reflections of the acoustic signals; a waveguide for guiding acoustic signals from the transmitter to the liquid level surface and for guiding reflections of the acoustic signals back to the receiver, the waveguide comprising wherein said outlet is arranged closer to the first end than at least one of said at least one inlet; and a retaining chamber for at least temporarily retaining liquid arranged such that at least one of said at least one inlet forms a fluid connection between the retaining chamber and the waveguide during operation, wherein an absorbing element adapted to collect liquid originating from the liquid in the tank and to release gas originating from said liquid is arranged in the retaining chamber.