Patent ID: 7073379
Filing Date: 2006-07-11
Classification: G01F,Y10S

Abstract:
1. A method for fill level measurement with an arrangement for fill level measurement having a fill level measuring device arranged on the container, and operating according to the travel time principle, a material flow apparatus for registering or recording a filling and/or emptying of the container, and an auxiliary unit, which by means of the filling and/or emptying registered or recorded by said material flow apparatus determines the instantaneous change in fill level (V L ) or the instantaneous material flow rate, the method comprising the steps of: transmitting a send-signal (S) to the fill substance; receiving the echo-signal (E) of the send-signal; determining at least one echo (E) of the echo-signal (E); determining a provisional fill level (L determining a measured change (V(E)) in the fill level from the provisional fill level (L determining a deviation (Δ(V(E); V determining at least one other echo (E′) as probably the echo (E′) reflected on the upper surface of the fill substance when the deviation (Δ(V(E); V repeating said last determination until an echo (E) is found for which the deviation (Δ(V(E); V