| 摘要 |
<p>The measuring device (10) has two ultrasound converters (26a,26b) arranged in a pipeline (12), particularly in the vicinity of the wall. The ultrasound, transmitted and received in the operation, has a delay time depending on the flow rate or the flow-through of a fluid (14) flowing in the pipeline. The ultrasound converters are provided in an insertion (20), which is inserted in the pipeline in an operating position and is removed from the pipeline. An independent claim is also included for a method for recalibrating a flow rate or flow meter for a fluid in a pipeline on ultrasound basis, with a measuring insert.</p> |
