G - Physics – 01 – F
Patent
G - Physics
01
F
349/33, 349/38
G01F 23/28 (2006.01) G01F 23/296 (2006.01)
Patent
CA 1102441
ABSTRACT OF THE DISCLOSURE A method of measuring a filling level in a container or the height of loose material over a storage surface, comprises transmitting and recording a sound pulse having a duration at least as long as a pulse which travels to the lowermost level of the material, recording the echo of the sound pulse from the actual material filling level, and measuring, as a measure of the filling level, the time interval between the end of the transmitted pulse and the end of the echo pulse. A device for measuring the height of the filling material on a surface, comprises an electroacoustic trans- mitting transducer excited by an electric pulse generator and having a receiving transducer whose output is connected to an electrical time measuring device. The transmitting transducer and the receiving transducer are mounted over the surface of the material being added thereon and a control circuit of the measuring device is adjusted so that it starts measuring the time at the end of the transmitted pulse and stops at the end of the echo pulse.
279791
Endress (g. H.) & Co.
Rolston George A.
LandOfFree
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