Five development trends of electronic belt scale technology

As an automatic weighing instrument for continuous and dynamic weighing of various bulk materials such as coal, ore, cement, and grain during the transportation process, the electronic belt scale is also used as the demand for bulk materials increases and the needs of modern metering management More and more widespread. At the same time, as the value of weighing materials increases, its measurement accuracy, stability and reliability have also attracted more attention, and users have higher requirements for the performance of electronic belt scales. Third, with the development of information technology, Internet of Things technology, computer technology and other technologies, and the application of these advanced technologies to electronic belt scales, a series of factors have promoted the rapid development of electronic belt scale technology. In summary, the development trend of electronic belt scales is mainly concentrated on the digitization of weighing signals, the simplification of weighing frame structure, redundant design, online calibration and networking. Weighing signal digitization Because the weighing sensor signal is only 0-30mV, it is not conducive to long-distance transmission, and it is also susceptible to interference from external factors, which is not conducive to the accurate transmission of weighing signals. In order to enhance the anti-interference ability and adapt to the requirements of long-distance transmission, the use of digitizers can solve this problem. Not only the distance between the instrument and the weighing site is increased, but also the anti-interference ability of the system is greatly enhanced. 2. Redundant design to increase reliability In order to increase the reliability of the belt scale, the electronic belt scale adopts a combined structure, and each unit can be equipped with multiple load cells. The belt scale has a self-diagnosis function. When the load cell fails to work, the system will automatically switch the sensor to improve the reliability and stability of the system. There is no need to stop the switching process, and the weighing can still run reliably, avoiding the loss of time and recalibration caused by the replacement of the sensor. It solves the problem of inaccurate measurement due to an abnormality of a load cell during the conveying process, and at the same time it is difficult to find the inaccurate measurement, and improves the overall stability and measurement accuracy of the belt scale. 3. The structure of the weighing frame is simplified. The weighing bridge is complicated, which will increase the number of force transmission links, and its own mechanical structure will affect the measurement accuracy. In addition, the structure of the weighing frame has a large unit area, a lot of dust, and a relatively increase in maintenance. The structure of the weighing frame is simple and its weight is light, which will improve the accuracy and reduce the amount of maintenance. For example, the high-precision belt scale of Guonuoxinke adopts a suspended combined weighing frame, which has a lighter dead weight and is unable to transfer links to improve accuracy; no friction, reducing friction caused by component damage; small unit area, which can avoid routine maintenance. 4. Real-time online calibration Calibration is one of the effective means to maintain the stable and continuous operation of belt scales, but frequent calibration brings greater maintenance and maintenance costs. Guonuoxinke high-precision belt scale has online calibration function. During the material running process, it realizes automatic online calibration and online zero adjustment, which improves the reliability, stability and weighing accuracy of the belt scale, and solves the problem of frequent belt scales. Calibration problem. 5. Networked belt scale equipment manufacturers' belt scales are networked mainly through fieldbus and industrial Ethernet. Putting the belt scale on the Internet for management is one of its networked goals. The belt scale can be online through the Internet. Remote control, analysis, calibration and maintenance. The metering cloud platform of Guo Nuoxinke can carry out overall management and control, calibration and maintenance of belt scales, and even analyze the operation trend of belt scales through data curves.