Dynamic (dynamic) load measuring method, dynamic load measuring device and load measuring device using them

摘要

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for measuring a load in a dynamic state in which fluctuations such as fluctuations and vibration are present. By measuring the momentary displacement Yi by applying a load to the free end of the member constituting the spring system and fixing the one end of the member to the free end, the static load We; In the formula, Wi is the instantaneous load, g is the gravitational acceleration, g_{(A / L) i}Is the free end acceleration obtained by differentiating the displacement Yi twice, and k is a spring constant. In the case where the base fixing the members constituting the spring system fluctuates such as fluctuations or vibrations, the static load We; g_{(G / L) i}Is the acceleration of the variation of the base.