Because of requiring no speed detecting devices, this method is effective, simple and practical conception for the electrical parameter measurement of sensorless vector control system.

该方法不需要速度检测元件，从而为无速度传感器矢量控制系统的电气参数测试提供了一种有效、可行的方案。

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The interference produced by the dithering of this detecting system is called self-dithering interference relative to human life-parameter such as respiration and heartbeat.

非接触生命参数检测系统由于抖动而产生的干扰，相对于人体的生命参数信号(如呼吸、心跳)而言被称作检测系统的自抖动干扰。

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