Acousto-optic modulation of CO2 laser amplifier by using Bragg diffraction is described.
本文叙述了CO2激光的布喇格衍射型声光调制及放大装置。
A new spectrum shaping method, based on electro-optic modulation, to alleviate gain narrowing in chirped pulse amplification (CPA) system, is described and numerically simulated.
提出了一种新型的基于电光调制的激光光谱整形方案,该整形技术可以减轻啁啾脉冲放大系统中的增益窄化效应。
The variation behavior of phase retardation of wave-plate with temperature was introduced, and the electro-optic modulation method was put forward to measure the phase retardation.
介绍了波片的相位延迟量随温度的变化行为,并提出一种测量相位延迟量的方法。
In the study of circuit detection scheme for the low-cost Fiber Optic Gyroscope (FOG), a closed-loop scheme for analog demodulation, square wave modulation and step wave feedback was put forward.
针对低成本光纤陀螺的电路检测方案开展研究,提出一种模拟解调、方波调制和阶梯波反馈的闭环方案。
Finally, through debugging the digital system connected with optic route, the method of modulation and detection were proved.
最终,通过数字系统与光路的联调,验证了数字调制方案的效果,也验证了整个检测方案的可行性。
Optic-fiber sensor on refractive index modulation can be applied to measure the steam quality in the process of viscous oil heating recovery.
折射率调制的光纤传感器可用于测量稠油热采过程中的蒸汽干度测量。
A novel reflective fiber optic microphone was introduced. It USES a reflective fiber optic sensing probe to realize the outside modulation of sound to light.
一种新型的反射式光纤麦克风,它利用反射式光纤传感探头实现声音对光的外调制。
The influence of Kerr effect to close-loop digital resonator fiber optic gyroscope based on square-wave frequency modulation was analyzed in theory.
对采用方波频率调制数字闭环谐振型光纤陀螺中克尔效应的影响进行了深入的理论分析。
The optic fiber sensors of phase modulation type developed by the interference theory in traditional optics are high sensitive.
根据传统光学干涉原理研制出的相位调制型光纤传感器,其突出优点是灵敏度高。
This paper presents a deep analysis to some modulation issues in fiber optic CATV system.
文章就光纤CAT V调制方面的若干问题,进行了深入的分析。
The detection theory of resonator fiber optic gyro (R-FOG) based on the serrodyne modulation with two frequencies was introduced, and the correlative detection theory in digital system was analyzed.
介绍了基于双频率锯齿波组合调制的谐振式光纤陀螺(R - FOG)的检测原理,分析了数字系统信号相关检测的理论。
The mathematical expression of reflection modulation function is derived in this paper. The detection principles of two kinds of structures in the optic fiber colour mark sensor are presented.
文中导出了反射光调制函数的数学表达式,并介绍两种结构的光纤色标传感器的检测原理。
In a reflective fiber optic displacement sensor, the influence on intensity modulation property caused by the reflector shape was studied theoretically with the mathematic model found.
研究了反射式强度调制型光纤传感器中反射面的形状对光强调制特性的影响,推导得出了含反射面形状因子的光强调制函数。
To decrease the effect of the intensity modulation of the LD on measurement accuracy, a novel LD-SPM fiber-optic interferometer is presented, and the theory of the interferometer is analyzed.
提出一种新的消除激光二极管正弦相位调制干涉仪中光强调制影响的干涉仪,给出了具体的理论分析。
The intensity modulation method is the oldest and simplest method for fiber-optic sensor, in which a homochromatic laser is used as system light source.
强度法是干涉型传感器采用的最古老、最简单的方法,它采用单色激光光源作为系统的光源。
In the application of intensity modulation type fiber optic sensor, the power fluctuation of a light source is a key factor affecting sensor accuracy.
在强度调制型光纤传感器的应用中,光源的功率波动是影响传感器精度的关键。
The principle of fiber phase modulation is described clearly. The basic principium of fiber-optic acoustic sensor is vividly depicted based on the Michelson-type interferometer.
阐述光纤相位调制机理,结合迈克尔逊型干涉结构探讨光纤声传感的基本思想和原理。
Ti: LiNbO3 phase modulator is the key device in closed-loop sawtooth modulation fiber-optic gyroscope.
铌酸锂相位调制器是实现锯齿波调制闭环光纤陀螺的关键器件。
A novel all optic fibers Q-modulated erbium-doped optic fibers laser is reported. The optic fibers ring mirror with optic fibers grating is used as Q-modulation device in its configuration.
报道一种新型全光纤调q掺铒光纤激光器,在其结构中采用带有光纤光栅的光纤环形镜作为调q装置。
In this paper we can realize optic-electricity transform by the modulation, demodulation, coding, decoding for the signal;
本文通过对信号的调制、解调、编码、解码实现了光电转换;
Then, it describes the applications of intensity modulation fiber-optic sensor, interferometric fiber-optic sensor, fiber-optic grating and fiber-optic acoustic emission sensor.
同时,文章阐述了强度调制型光纤传感器、干涉型光纤传感器、光纤光栅和光纤声发射传感器的应用。
The method comes from the mechanism of reciprocal shift modulation, which transforms the measuring of eigenfrequency into measuring the spike pulse responding to ineffective-modulation optic power.
从互易性偏置调制的机理出发,将对本征频率的测量转化为对无效调制光功率响应的尖峰脉冲的测量;根据光功率响应机理,将对半波电压的测量转化为求有效调制光功率最小值。
The method comes from the mechanism of reciprocal shift modulation, which transforms the measuring of eigenfrequency into measuring the spike pulse responding to ineffective-modulation optic power.
从互易性偏置调制的机理出发,将对本征频率的测量转化为对无效调制光功率响应的尖峰脉冲的测量;根据光功率响应机理,将对半波电压的测量转化为求有效调制光功率最小值。
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