Dry type calibration manner of vortex meter

摘要

(57) Abstract In order to achieve the precision of 0.75% order of measurable quantity, with this manner, the measurement pipe conduit (2) axis (3) on the high resolution electronic camera where the measurement pipe conduit (2) is provided before (9) of making use, in machine direction, the eddy generation body (7), the measurement pipe conduit which is provided inside the field of the eddy generation body (2) the inside (4), both fixed area of the eddy generation body (71,72) and the inflow edge (5) the border line (51) the two-dimensional digitalization all image is formed. All image is split into three part images. Only information the inflow edge (5) and concerning the inside (4) we have possessed the 1st part image, both fixed area (71,72) without only information the eddy generation body (7) concerning we have possessed the 2nd part image, only information both fixed area (71,72) concerning we have possessed the 3rd part image. The fixed area (71,72) concerning from the ideal information which characterizes the ideal form state of form status information and form status information, information of cross correlation is formed. The neural network (22) in, you could obtain all items of information, from many wet type calibration, with the canonical information where information of classified by particular all individual fits respectively treating, size information calibration coefficient information and/or, concerning the geometric size of the vortex meter which is calibrated is formed.