Apparatus for sensing liquid flow in a conduit or open channel and associated method

摘要: An apparatus includes a conduit having generally circular cross-section, and liquid flow sensor extending into the so that contacting portion extends parallel to an axis of is positioned extend interior first distance. electromagnetic coil in housing for generating magnetic field within flow. In addition, pair spaced apart electrodes defining second distance therebetween being exposed on signal related rate. Moreover, preferably greater than or equal about two times one-tenth diameter conduit. open channel embodiment invention has cross-section predetermined width opening bottom wall thereof. A channel. The as described above. this embodiment, however, define range 0.10 0.95 This relationship ensures acceptable accuracy using relatively compact, lightweight inexpensive sensor. Method aspects are also disclosed.