| 摘要 |
<p>A method of indicating a liquid flow comprises the steps that, when the liquid flow switches on throughflow of a conduit length (1) which is or includes a throttle (4, 5) the switching of the liquid flow between laminate and turbulent flow or the reverse being sensed and employed as an indication of the size of the liquid flow. Turbulent flow is sensed via the vibrations generated by the turbulence. An apparatus for indicating a liquid flow comprises a conduit length through which the liquid flow flows. According to the present invention, the conduit length (1) is or includes a throttle (4, 5) and is connected to a vibration sensor (10). The sensor (10) senses the occurrence or increase and cessation or decrease, respectively, of vibrations which take place on switching of the liquid flow from laminate to turbulent flow or the reverse.</p> |
