| 摘要 |
FIELD: physics. ^ SUBSTANCE: in the method, separate echo signals of different periods are distributed in accordance with typical characteristics of the echo signal into general groups of echo signals so that after checking general curves of echo signals, it can be determined whether echo signals of corresponding general curves of echo signals are useful echo signals or spurious echo signals. Based on this classification, the spurious echo signal accumulation device is then updated with echo signals of corresponding general groups of echo signals. Besides a method of updating a spurious echo signal accumulation device, the invention also relates to an evaluation device for realising the disclosed method, as well as to a machine readable carrier which contains a computer program. ^ EFFECT: possibility of preventing erroneous determination of the level of filling a container with material. ^ 32 cl, 13 dwg |
