| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a flow rate measuring device capable of reducing power consumption while maintaining measurement accuracy. <P>SOLUTION: The flow rate measuring device comprises: a first vibrator 2 and a second vibrator 3 provided in a fluid flow passage 1 ; measuring means 11 for measuring outputs of the first vibrator 2 and the second vibrator 3; resolution setting means 8 for setting a measuring resolution of the measuring means 11; flow rate determining means 13 for determining a measurement result based on the outputs of the measuring means 11; flow rate computing means 12 for computing a flow rate based on the outputs of the measuring means 11; and measurement controlling means 14 for controlling each element. The measurement controlling means 14 includes normal measuring means 15 for setting a predetermined value in the resolution setting means 8 to measure a flow rate and search measuring means 16 for setting a resolution, which is more coarse than that in the normal measuring means 15, in the resolution setting means 8 to determine the presence of a flow rate in the flow rate determining means 13. <P>COPYRIGHT: (C)2012,JPO&INPIT |
