“heterodyne interferometer”的概念、定义、翻译、参考文献-科学参考

单词	heterodyne interferometer
释义	heterodyne interferometer Encyclopedia 理学〔光学仪器〕释 heterodyne interferometer外差干涉仪使用两种不同频率的单色光分别作为测量光束和参考光束，通过光电探测器的混频，输出差频信号的干涉仪。又称双频干涉仪、交流干涉仪。
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