How can I calculate the inductance of brushless DC motor?
Take a 1 k\$\Omega\$ resistor, put it in series with one phase, then apply a sine waveform from a signal generator. Adjust the frequency to get same amplitude on both resistor and the motor phase. Then use \$ Z=j2 \Pi fL \$. The slight rotor movements should not be a problem since it will not achieve any significant speed.