Least mean square estimator for motor frequency measurement based on linear hall sensor

Ga Hyoung Choi, Won Sang Ra, Ki Seok Kwak, Tae Sung Yoon, Jin Bae Park

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1 Citation (Scopus)


Motor frequency can be measured by a hall sensor. Among the many hall sensors, a linear type hall sensor is good at high accuracy frequency measuring problem. However, in general, this linear type hall sensor has DC offset which can vary along sensor's operating voltage change. Therefore, In motor frequency measurement problem using the linear hall sensor, it needs an estimator that can estimate frequency and DC offset simultaneously. In this paper, we propose the least mean square estimator to estimate motor frequency. To verify its performance, we compare the LMS estimator with a commercial analog tachometer. Experimental results shows the proposed LMS estimator works well in varying frequency and stationary DC offset.

Original languageEnglish
Pages (from-to)866-874
Number of pages9
JournalTransactions of the Korean Institute of Electrical Engineers
Issue number5
Publication statusPublished - 2008 May 1


All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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