Dynamic load sensing method, dynamic load analyzing sensor, and load measurement equipment using said sensing method and said analyzing sensor

摘要

PCT No. PCT/JP92/01094 Sec. 371 Date Apr. 30, 1993 Sec. 102(e) Date Apr. 30, 1993 PCT Filed Aug. 27, 1992 PCT Pub. No. WO93/05371 PCT Pub. Date Mar. 18, 1993.A method and apparatus for measuring a load under a dynamic state where variations such as swinging and vibration exist. One of the ends of a member constituting a spring system is fixed with the other end free. A stationary load We is calculated in accordance with equation by attaching a load to the free end and measuring the instantaneous displacement Yi. In the above equation, Wi is the instantaneous load, g is gravitational acceleration, g(A/L)i is the acceleration of the free end obtained by differentiating twice the displacement Yi, and k is a spring constant. When a base to which the member constituting the spring system is fixed undergoes variations such as swinging and vibration the stationary load We is determined by where g(G/L)i is the acceleration of variation of the base.