| 摘要 |
<p>A fill-level measuring device working according to the pulse radar principle for measuring a fill level of a fill substance in a container, comprising: a transmission system a pulse producing system, which, comprises, in each case, at least two measurements, for each measurement, produces a transmission signal composed of at least one microwave pulse periodically following one another, of center frequency predetermined for the particular measurement. The center frequencies of the transmission signals of at least two of the measurement are different from one another. An antenna connected to the transmission system, which sends the transmission signals into the container, and receives as received signals their signal fractions reflected in the container back in the direction of the antenna, and which has for different center frequencies different spatial radiation characteristics dependent on the center frequency of the transmission signals; and connected to the transmission system and the antenna, a signal processing system, which receives the received signals and evaluates such based on the center frequencies of the microwave pulses of the associated transmission signals and the center frequency dependence of the spatial radiation characteristic of the antenna.</p> |
