Design of Double Closed Loop for Granular Material Automatic Weighing System
- 10.2991/jimet-15.2015.213How to use a DOI?
- automatic weighing; aerial weight; double closed-loop; weighing accuracy; weighing speed.
The weighing of granular materials is generally implemented through the detection and control of weighing instruments, which control the vibration intensity according to the weight of incoming material measured by the sensor, and finally assure the material weighing accuracy under certain speed. Vibration feeding equipment is classified into crude feeding and fine feeding. The former is at high rate but with less accuracy while the later is with high accuracy but at lower rate. The final weighing accuracy depends on the aerial weight of material during fine feeding process. The aerial weight can be set, but is still influenced by many factors. Here, in this paper, these factors will be discussed and analyzed. Furthermore, an instrument of dual close-loop of accuracy and feeding rate was designed. This instrument adopts STM32 microcontroller as the processor and applies high-speed 24-bit AD conversion chips in the analogue sampling part and performs well in practical application, solving the longstanding practical difficulties that easier to control static accuracy while hard to control dynamic accuracy.
- © 2015, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Zhang Dong PY - 2015/12 DA - 2015/12 TI - Design of Double Closed Loop for Granular Material Automatic Weighing System BT - Proceedings of the 2015 Joint International Mechanical, Electronic and Information Technology Conference PB - Atlantis Press SP - 1127 EP - 1135 SN - 2352-538X UR - https://doi.org/10.2991/jimet-15.2015.213 DO - 10.2991/jimet-15.2015.213 ID - Dong2015/12 ER -