Many washing machines declared the automatic weighing of linen, but really any weights of course not in the washing machine.
Most machines avtovzveshivaniya system is simply a water level sensor (called a pressure switch). Different types of laundry and its different quantity absorb different amounts of water. Machine wet laundry, the drum begins to twist and brings the water level in the tank to the required level. It turns out that washing machine is always right and always poured different amounts of water.
In my LG WD-12400NDK washing machine has a washing program with pre-weighed dry laundry, the amount of which affects the duration of the cycle. Washing it weighs very cleverly. In this machine the engine is located directly on the axis of the drum (direct drive) and the sensor weight of the laundry is the engine itself - seems to have measured the rotational force (More precisely, the current flowing through the motor) and may be also a voltage generated by the motor during the rotation by inertia, and from these data the processor calculates weight laundry.
In programs without a "cunning" weighing machine immediately shows the wash.
And in the first three programs instead of time is shown first, and only after "weighing" appears in the actual washing time.
© 2016 Alex Nadozhin