Rotor Speed Measurement; Figure 6: Sinusoidal Construction - ST STM32 User Manual

Implementation of six-step motor control
algorithm in STM32 Nucleo microcontroller
3.3.3

Rotor speed measurement

The sinusoidal and the trapezoidal motor structures are mentioned in this document. The
motor structure can be recognized by rotating the motor by hand and connecting a probe to
two motor phases.
The figures below show the signal acquired through an oscilloscope.
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Figure 6: Sinusoidal construction

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