Integrated digital control and filtering for an electrodynamically compensated weighing cell

An integrated digital control and filtering system (IDCFS) has been designed for a high-resolution electrodynamically compensated weighing cell. This system provides faster response time and higher robustness with respect to disturbances than current analog equipment. The basic concept of the IDCFS and major problems of its hardware and software design are discussed. In addition, an intelligent multifilter scheme is presented for high-precision measurement applications. Experimental results obtained for a prototype weighing cell equipped with an IDCFS are presented