Normally found in standard inertial reference systems, gyro-compassing enables the unit to establish precise heading within moments, without the use of a magnetic flux valve or magnetometer.
通常放置在标准惯性参考系统中，陀螺仪能够使设备在瞬间建立精确的航向，而不使用磁通阀或者磁力计。
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This paper obtains a new speed-sensorless direct torque control scheme for induction motor based on calculating the stator flux vector increment to determine the stator reference voltage.