The Rotational Speed Measurement of Brushless DC Motor Based on STM32 Microcontroller

Abstract:

The brushless DC motor applied on the electric steering gear of trajectory correction projectiles often requires getting real-time rotational speed value. The hall sensors output the hall signals for measurement, after the integration by the D-type flip-flop, an ideal pulse can be produced. Afterwards STM32F103ZE microcontroller is used to calculate the rotational speed value of the motor by the Improved M/T method. The resolution and precision can be analyzed after getting the result. This rotational speed measurement system has high precision and good real-time characteristics. It is significant for the meaning of the correction of the steering gear.

• Periodical: Advanced Materials Research (Volumes 760-762)
• Pages: 891-895
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.760-762.891
• Online since: September 2013
• Authors: Meng Bing, Fang Xiu Jia, Wen Jin Yao
• Keywords: Hall Pulse, Improved M/T Method, Precision, Resolution, Run-Out Tolerance

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