| 摘要 |
PROBLEM TO BE SOLVED: To provide a water flow velocity measuring device capable of easily and properly correcting measurement errors.SOLUTION: A water flow velocity measuring device includes: a processor 4 calculating errors of magnitude and a direction of a ground speed by an oscillator 2 according to the comparison with a ground speed by an external unit 3, on the basis of a result of accumulating the ground speeds obtained by the oscillator 2 and the external unit 3 at each point of time for a predetermined period of time; and a display part 5 for displaying the errors calculated by the processor 4. |
