CPC G01L 9/0044 (2013.01) [E04H 4/1654 (2013.01); G05D 1/0206 (2013.01); E04H 4/16 (2013.01); G05D 2201/0203 (2013.01)] | 21 Claims |
1. A pool cleaning robot comprising:
a hollow body, a fluid input, a fluid output, a propulsion unit for moving the pool cleaning robot within a pool, a filtering unit, and a sensing module that comprises a gas pressure sensor, a first space, a second space and a diaphragm;
wherein the diaphragm seals the second space and separates the first space from the second space;
wherein the diaphragm, via the first space, is fluidly coupled to the filtering unit;
wherein the diaphragm is configured to define a gas pressure within the second space as a function of, at least, a fluid pressure within the first space;
wherein the gas pressure sensor is located within the second space and is configured to measure the gas pressure within the second space.
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