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International Standard Serial Number:
ISSN 1001-4551
Sponsor:
Zhejiang University;
Zhejiang Machinery and Electrical Group
Edited by:
Editorial of Journal of Mechanical & Electrical Engineering
Chief Editor:
ZHAO Qun
Vice Chief Editor:
TANG ren-zhong,
LUO Xiang-yang
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Research and design of electronic balance
WEI Kangkang, QU Liyang, QIN Huibin
（School of Electronics & Information, Hangzhou Dianzi University, Hangzhou 310018, China）
Abstract: In order to solve the problem of electronic balance accuracy caused by weak signal amplification, a highprecision chip ADS1230 was used, the trouble of designing analog amplifier was eliminated. And it was solved that the problem of offset voltage and temperature drift caused by analog amplifier. The resistance strain sensor works, chip ADS1230 features and its application circuit design were discussed. Then the microcontroller AVRmega16 was used to design an electronic balance, and the design methods of hardware system were illustrated. The results of experiments show that the accuracy is up to 0.05 g, and the system has characteristics of weighing fast, data stable.
Key words: resistance strain sensor; electronic balance; single chip microcomputer
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