问tachogenerator是什么意思

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tachogenerator 英['tækə'dʒenəreɪtə] 美['tækə'dʒenəreɪtə] n. 测速发电机，转速表传感器; [网络] 转速发电机; 速度监测装置; 测速发电机; [例句]The speed measurement method by combining tachogenerator and photoelectric encoder was proposed for decreasing quantization noise of the photoelectric encoder.设计了采用测速发电机和光电码盘组合的测速方法，用以消除码盘的量化噪声；