Method and measuring system for determining and/or monitoring the flow of a measured medium through a measuring tube

A measuring system for determining and/or monitoring flow of a measured medium through a measuring tube, comprising:

• a sensor holder which is securable on the measuring tube and includes a securement mechanism for releasable securement of a sensor housing on said sensor holder;
• at least one control/evaluation unit, which, based on ultrasonic measurement signals, or based on measurement data derived from the ultrasonic measurement signals, ascertains volume, and/or mass flow of the measured medium flowing in the measuring tube;
• a first ultrasonic sensor;
• at least a second ultrasonic sensor;
• and
• a seal arranged between the measuring tube and said sensor housing on said sensor housing wall facing the measuring tube, wherein:
• said sensor housing surrounds said first and second ultrasonic sensors;
• at least said first ultrasonic sensor is seated shiftably in said sensor housing;
• said sensor housing forms with said ultrasonic sensors a unit securable on said sensor holder and releasable from said sensor holder;
• and
• said sensor housing has on said sensor housing wall facing the measuring tube, between said sensor housing wall and the measuring tube, at least one stop, which, in the mounted state of the measuring system, lies against the measuring tube and defines between senaor housing wall and the measuring tube a distance h, up to which distance h said seal is compressable between said sensor housing wall and the measuring tube.

A measuring system for determining and/or monitoring flow of a measured medium through a measuring tube, comprising:

• a sensor holder which is securable on the measuring tube and includes a securement mechanism for releasable securement of a sensor housing on said sensor holder;
• at least one control/evaluation unit, which, based on ultrasonic measurement signals, or based on measurement data derived from the ultrasonic measurement signals, ascertains volume, and/or mass flow of the measured medium flowing in the measuring tube;
• a first ultrasonic sensor;
• and
• at least a second ultrasonic sensor, wherein:
• said sensor housing surrounds said first and second ultrasonic sensors;
• at least said first ultrasonic sensor is seated shiftably in said sensor housing;
• said sensor housing forms with said ultrasonic sensors a unit securable on said sensor holder and releasable from said sensor holder;
• said securement mechanism includes a leaf spring, which is an integral component of said sensor holder or which is connectable with said sensor holder, and a clamping hanger, which is rotatably seated on said sensor housing and which ha an eccentric cutout;
• and
• by engagement of said eccentric cutout in said leaf spring, a force is appliable in the direct of the measuring tube upon rotation of said clamping hanger on said sensor housing.