We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
纸张厚度自动测量系统设计与实现.
- Authors
王承林; 王晓旭; 赵治巨; 王 蕾; 成燕平
- Abstract
STC15F2K61S2 single chip microcomputer was the main controller of the automatic measuring system of paper thickness,which was composed of RC multivibrator circuit consisted of NE555 chip and parallel metal plate,signal acquisition circuit,control circuit,storage circuit,alarm circuit,key control circuit and Nokia 5110 liquid crystal display circuit. The oscillating circuit transformed the change of the measured capacitance value into the change of the frequency value,then many algorithms were used to accurately measure the actual frequency of paper,so as to calculate the corresponding relationship with the paper amount according to different frequency values. The measuring system had the functions of frequency acquisition,processing,counting display and selfcalibration,and stores the calibration data parameters in AT24C02. The system could realize the real-time display of the tested paper data in the mobile terminal through WiFi wireless communication circuit and special mobile app program. The system had the advantages of rapid discrimination,high accuracy and strong adaptability,which could meet the requirements of paper test experiment design and it provided reference for intelligent manufacture of paper testing equipment.
- Subjects
LIQUID crystal displays; NOKIA Corp.; RC circuits; WIRELESS communications; MOBILE apps; PERSONAL computers
- Publication
China Pulp & Paper, 2020, Issue 9, p52
- ISSN
0254-508X
- Publication type
Article
- DOI
10.11980/j.issn.0254-508X.2020.09.009