Abstract
Weighing technology since ancient times been paid more attention in the legend of the Yellow Emperor, "the five volume set", the balance amount shall be the first five.In BC, people to exchange goods measured initially produced using wood or clay containers as a measurement tool for the exchangeof goods, and later using a simple scale to determine themass. Now, with the development of productivity, the application of electronic weighing more and more widely, while the technical requirements of electronic weighing more and more, electronic weighing scales from a single device evolved into a set of weighing, automatic control and information processing for the integrated weighing system. Electronic weighing instrument is one of intelligent instruments, as computer technology and measurement technology combined with the product of rapid development in recent years has become mainstream in the development of modern weighing technology. With the new technology, new devices, the continuous emergence of new standards and applications continues to expand, electronic weighing instrument of architecture, design and realization method are all constantly transformation.
Electronic weighing instrument mainly as a central control unit MCU, by weighing sensors magic conversion unit, which together with display circuit and software. This paper presented the hardware design of electronic weighing instrument, based on detailed analysis of the software control.
Keywords：Electronic weighing instrument、 SCM、 A / D conversion 、Load Cell
