Apparatus for determining and / or monitoring of the volume - and / or mass flow rate and of a measuring medium

摘要

The present invention relates to an ultrasound - flow meter (9), including the volume - and / or the mass rate of flow of a measuring medium (10) in a pipeline (2) or in a measuring tube is determined. The flow meter (9) has a plurality of ultrasonic sensors (1), which the ultrasound - the measurement signals of different sonic paths (sp) transmitting and / or receive.The control - / electronic evaluation system of the flow measuring device (9) is divided into an electronic control system (12), in which at least one changeover switch (3a; 3b) is provided, via which the in different sound paths (sp) can be controlled ultrasonic sensors mounted (1) and / or, can be queried, and in at least a remote rule - / evaluation unit (6), wherein the rule - / evaluation unit (6) the at least one changeover switch (3a; 3b) switches in such a way that the driven and / or interrogated ultrasonic sensor (1) or the driven and / or interrogated pair of ultrasonic sensors (1) is activated and measured values provides.