In this paper, some new multiple diode, such as varicap diode, switching diode, diode array, damper diode, modulation diode and Schottky diode are discussed.

本文介绍了几种新型复合二极管，包括变容二极管、开关二极管、二极管阵列、阻尼二极管、调制二极管和肖特基二极管等。

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By analyzing the direct frequency modulation and optical feedback effect of laser diode, a theoretical model for measuring small vibration displacement and velocity is discussed.

分析了在直接频率调制下，激光二极管中的光反馈效应，探讨了振动微小位移和速度的理论模型。

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Then, the idea that detecting oxygen concentration by using laser diode wavelength modulation and harmonic signal treatment was proposed.

在分析比较的基础上，提出将激光二极管发射波长调制及谐波检测分析处理技术用于氧气浓度检测。

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