Precise measurement difference compensation device and method

The invention relates to an accurate measurement difference compensation device and method, and belongs to the technical field of measurement and automation. According to the technical scheme, a fixed-limit material feeding unit (110), a fixed-limit weighing unit (120), a fault diagnosis unit (150) and an automatic packaging unit (160) are sequentially connected; a logic conversion unit (130) and a difference compensation material chip putting unit (140) are connected with the fixed-limit weighing unit (120) to control the weight of materials in the fixed-limit weighing unit (120); and a three-dimensional animation monitoring unit (170) is connected with the fixed-limit material feeding unit (110), the fixed-limit weighing unit (120), the fault diagnosis unit (150) and the automatic packaging unit (160). The precise measurement difference compensation device and method have the beneficial effects that through automatic belt control, the material feeding rhythm counting device and full bin limiting control, au