| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a tapping device for a powder measuring apparatus, capable of easily changing a stroke and a frequency of tapping. <P>SOLUTION: A tapping device 20 provided in a powder physical property measuring apparatus 1 comprises: a tapping table 21, 21A for mounting a measuring cup 64 or measuring cylinder 70; and a tapping shaft 22 for supporting the tapping table. A lift bar 25 rotating in a vertical plane lifts and drops the tapping shaft 22. The lift bar 25 is directly connected to a motor shaft 24a of a stepping motor 24 and the stepping motor 24 gives a rotation in a vertical plane to the lift bar 25. A rotation angle and a rotational speed of the lift bar 25 given by the stepping motor 24 are controlled by a control device 30. <P>COPYRIGHT: (C)2013,JPO&INPIT |
