Load cell is the heart of electronic weighing apparatus. As the rapid development of sensor technology, electronic weighing apparatus have been widely used in many industrial areas. They have achieved fast and accurate weighing and force measuring. Especially after the widely use of micro processors, industrial automatic control has become much easier. Load cell has become an essential part of industrial automatic control systems. It is used in tank scales, hopper scales, hanging scales, vehicle scales, digital kitchen scales and platform scales. Electronic counting scales, platform scales ,bench and counting scales. Electronic counting scales, electronic balance, human body scales, postage scales. digital kitchen scales and postage scales,Vehicle scales, railroad scales etc hopper scales, commercial scales, and other scales or control systems that require fast and accurate force measuring.