Abstract
This paper clarifies the dynamic behaviors of a mass measurement system with conveyor belt (a checkweigher). The checkweigher can be approximated by a spring-mass-damper system as the physical model, and the equation of motion is derived. The validity of the proposed model can be confirmed by comparison of the simulation results with the realistic responses. Moreover, the transient responses of checkweigher with Analog and Digital PID controller are compared.
