What are the factors that affect the accuracy of the weightlessness scale?
The weightlessness scale is a kind of weighing equipment with intermittent feeding and continuous discharging. Different types of weightlessness scales have special functions. Through this article, the editor will introduce to you how the weightlessness scale works? In work, what factors will affect the accuracy of the weightless scale and the future development prospects of the weightless scale. Points to note for weightless scales, factors affecting accuracy. Weightless scales have both static and dynamic scale characteristics. Therefore, when designing the system, it requires: the correct delivery rate range. Generally, the actual working range is 60%~70 of the rated delivery volume. %optimal. If AC speed is adopted, the corresponding frequency conversion rate is 35~40Hz. This ensures a wide adjustment range, because when the delivery rate is too low, the stability of the system is poor. In other words, the sensor also uses 60% to 70% of its range, and the signal has a wide range of changes, which is extremely beneficial to improve accuracy. The mechanical structure design should ensure that the material has good fluidity, and at the same time ensure that the replenishment time is short, and the replenishment should not be too frequent. Generally, it is required to replenish the material every 5-10 minutes. The supporting transmission system must ensure stable operation and good linearity. The application prospects of weightless scales With the rapid development of electronic control technology, weightless scales adopt new technologies to increase the measurement accuracy from 0.3% to 0.5% to 0.1% to 0.2%, and even exceed static scales. This new technology The core is the application of digital load cell. The system automatically controls the discharge screw/electric vibrator/belt conveyor according to the rate of decrease in the weight of the material in the weighing hopper to achieve the purpose of quantitative feeding. When the material in the weighing hopper reaches the lower limit of the weighing position, the feeder will discharge the material according to the current speed, and the material in the transition silo will quickly drop into the weighing hopper. When the material is loaded to the upper limit of the weighing, it will stop loading. material. Applicable range of weight loss scale: large viscosity, large particle size, high water content granule, powder and other ingredients accuracy