| 摘要 |
The invention relates to a method and a device for determining the level of a filling (1) in a container (2). The aim of the invention is to provide a method and a device for measuring said level which are economical to carry out/produce and which offer an especially high degree of measuring accuracy. To this end, the inventive method provides that transmit signals are sent in the form of a first binary-weighted pulse sequence of transmit pulses with a predetermined pulse repetition duration (<i> tau R</i>) and a predetermined pulse sequence length (L) in the direction of the surface (3) of the filling (1); and the echo signals of the transmit pulses reflected on the surface (3) of the filling (1) are sampled with a second, preferably continuous sequence of sampling pulses of the pulse repetition duration <i> tau R</i>, the second pulse sequence being delayed (<i> tau S</i>) in relation to the first pulse sequence and the components of the sampling values that correspond to the echo signals with a propagation time of tau = <i> tau S</i> being retained while components that correspond to echo signals with a propagation time of <i> tau S</i> < <i> tau </i> < <i> tau S</i> + L . <i> tau R</i> are deleted. The level of the filling (1) in the container (2) is determined using the weighted sampling values.
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