Many mechanical systems in industry need dynamic force calibration for accurate measurements. This is due to
the sensitivity of load cells changed greatly after their natural frequencies. Load cell parameters are used in
predicting sensitivity and the frequency range where this cell can be used. These parameters values are constants
depending on the load cell’s material and structural design. Consequently, they can be obtained under exerting
static, or dynamic force. The aim of this paper is to demonstrate a new study for measuring the load cell parameters
accurately under applying long-term creep test. Then, these parameters are compared to those
measured while exerting dynamic force of sine mode. A clear difference has been observed between the two
measurement methods. Rocking modes, and adapters in the dynamic measurement method affect the parameters
accuracy. Generally, static measurement methods are well defined than dynamic in force application and
deflection measurement, and less complex. |
