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Proceedings Paper

The application of micro-stepping for step-motor in the automatic blood viscosity measurement
Author(s): Wen Qu; Lianqing Zhu
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Paper Abstract

In the automatic blood viscosity measurement system, the mechanical movements of moving parts are supported by stepmotors. The step angle of step-motor can not meet the requirements of precise positioning of parts, so the introduction of micro-stepping method is proposed to improve accuracy. At the same time, micro-stepping improves the running performance of step-motor. In the system adopts A3977 which has decoder inner chip drives hybrid step-motor (twophase four-shot). The most important feature of A3977 is that it integrates hardware micro-stepping inner chip, and the mainly electrical structure is easy. The system adopts eighth step by A3977, and uses C8051 to control enable, direction and step of step-motor.

Paper Details

Date Published: 15 November 2011
PDF: 7 pages
Proc. SPIE 8321, Seventh International Symposium on Precision Engineering Measurements and Instrumentation, 83210F (15 November 2011); doi: 10.1117/12.903714
Show Author Affiliations
Wen Qu, Beijing Information Science and Technology Univ. (China)
Lianqing Zhu, Beijing Information Science and Technology Univ. (China)


Published in SPIE Proceedings Vol. 8321:
Seventh International Symposium on Precision Engineering Measurements and Instrumentation
Kuang-Chao Fan; Man Song; Rong-Sheng Lu, Editor(s)

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