We should know a lot about the so-called traditional weighing equipment. For example, the hook scale used in our rural areas, a scale rod with a weight, mainly uses the lever principle and force balance to measure the weight. This principle is widely used in traditional weighing equipment. For example, the scale, which uses increasing or decreasing weights to test the weight of objects. With the progress of the times, the traditional weighing equipment has gradually shown its limitations and shortcomings. It will be a waste of manpower to weigh large and super large objects, and it is also very complex to weigh them. Like some small and micro objects, traditional weighing instruments can not measure at all, and the accuracy is too low.

The electronic scale is developed to meet the needs of economic and social development. It has a high accuracy and a wide measuring range. The main components of the electronic scale are divided into three parts: the scale body, the sensor and the display. Its basic working principle is that the object passes through the scale body, causing the scale body to generate pressure, which is transmitted to the sensor, and the sensitive beam on the sensor will be deformed under pressure. The signal generated by the deformation of the sensor will be converted into identifiable data, and then the data will be transmitted to the CPU (central processing unit) for calculation, and the CPU will transmit the calculation results to the display. The whole process can be summarized in one sentence, which is to convert the force into recognizable electrical signals, and then convert the electrical signal calculation into weight unit figures.

Electronic scales are not only used for weighing, but can be divided into pricing scales, counting scales and weighing scales according to the scope of application.