To provide a measuring device capable of measuring accurately the response characteristics of a force sensor with respect to a force changing stepwise.
A measuring unit 1 formed by installing a direct-acting bearing 3 for supporting a movable part 4, in a direct-acting state in the guide axis direction on a jig 2 for fixing the force sensor A, with a position relation wherein the movable part 4 faces to the force sensor A in the guide axis direction is arranged so that the guide axis 5a has a directional component in the vertical direction and that the movable part 4 can slip toward the movable part 4. A support means 9 for supporting the movable part 4 on the initial position, where a force does not act between itself and the force sensor A, and a means 14 for measuring the acceleration in the guide axis direction of the movable part 4 is provided. The movable part 4 is made to slip down from the initial position, to thereby abut against the force sensor A, and the inertia force of the movable part 4 is calculated from the acceleration measured at that time; and the resultant force between the inertia force and a gravity acting on the movable part 4 is used as a true force acting on the force sensor A and is compared with the detected output from the force sensor A.
TOKYO SOKKI KENKYUSHO CO LTD
Takeshi Sagi
Kenichi Homma