| 摘要 |
<p>The device includes a static, stream-injection arrangement placed at an output of a piping whose throughput is to be measured. The oscillation frequency of the injected stream is proportional to the flow speed of a fluid in the piping. The input (15) of the injection arrangement is fitted on the output of the piping. The injection arrangement includes receptor arrangements, e.g. electrodes (30,40), beam hole (16), feedback channel (22), which produce a signal indicating the oscillation frequency of the stream leaving the injection arrangement.</p> |
