Patent ID: 11860128
Assignee: ABB SCHWEIZ AG
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 7:
8. A control unit, wherein the control unit is configured to:
receive a first measurement parameter p1 from a first ultrasound receiver detecting a first ultrasound signal, which has been travelling along a first path;
receive a second measurement parameter p2 from a second ultrasound receiver detecting a second ultrasound signal, which has been travelling along a second direction;
determine a ratio p1/p2 of the first measurement parameter p1 to the second measurement parameter p2;
determine a ratio h/D of a distance h covered by the first ultrasound signal in the first direction to a distance D covered by the second ultrasound signal in the second direction;
compare a ratio p1/p2 with the ratio h/D; and
control a process based on a comparison of the ratio p1/p2 with the ratio h/D.