FLOW METER COMPRISING A MEASURING INSERT WITH A SOUND TRANSDUCER

摘要

The flow meter for one of a liquid and a gaseous medium comprises a casing and a measuring insert which is insertable into said casing. The measuring insert as a structural unit includes at least one first sound transducer for emitting a first sound signal into a measuring path through which the medium flows during operation and a second sound transducer for receiving the first sound signal after passing through the measuring path, the measuring path through which the medium flows during operation when the measuring insert is inserted, at least one end plate which seals a casing opening of the casing into which the measuring insert is insertable in such a way as to prevent an escape of the medium and which is provided with at least one of the two sound transducers, and at least one outer transducer cover which covers at least one of the two sound transducers on an outside of the end plate remote from the medium. A seal is arranged between the transducer cover and the end plate. An electric connection wire is guided through the transducer cover to at least one of the two sound transducers in a sealed manner.

主权项

1. A flow meter for one of a liquid and a gaseous medium (3), the flow meter comprising a casing (2; 24) and a measuring insert (5; 25) which is insertable into said casing (2; 24), wherein the measuring insert (5; 25) as a structural unit includes at least
a) one first sound transducer (13) for emitting a first sound signal (15) into a measuring path (8) through which the medium (3) flows during operation and a second sound transducer (14) for receiving the first sound signal (15) after passing through the measuring path (8); b) the measuring path (8) through which the medium (3) flows during operation when the measuring insert (5; 25) is inserted; c) at least one end plate (12) which seals a casing opening (6) of the casing (2; 24) into which the measuring insert (5; 25) is insertable to prevent an escape of the medium (3), and which is provided with at least one of the two sound transducers (13, 14); and d) at least one outer transducer cover (17) which covers at least one of the two sound transducers (13, 14) on an outside of the end plate (12) remote from the medium (3), wherein e) a seal (18) is arranged between the transducer cover (17) and the end plate (12), and an electric connection wire (20, 21) is guided through the transducer cover (17) to at least one of the two sound transducers (13, 14) in a sealed manner.