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- Effect of rotating center deviation on reflective optical intensity modulation 旋转中心偏移对反射光调制强度的影响
- optical intensity modulation 反射式强度调制
- Fiber Optic Displacement Sensors Based on the Principle of Collimated Beam Reflective Intensity Modulation[J]. 引用该论文 马惠萍;刘丽华;杨乐民;李鹏生.
- It is convenient to change the optical intensity of the sidebands by tuning the DC bias voltage while the microwave modulation frequency and power are fixed. 当微波调制频率及功率一定时，可方便地调节直流偏置电压来改变各阶光波的强度。
- Intensity modulated radiation therapy means achieving form conformity and dose conformity by altering intens... 而调强适形是通过改变射束剖面强度分布,达到形状适形和剂量适形放疗技术。
- Simulation shows that the power effectiveness and bit error rate of optical pulse system obviously outperform those of digital sub-carrier intensity modulation system under the same conditions. 仿真结果表明，在同等条件下，光脉冲调制系统的功率有效性要优于数字副载波调制系统，误比特率也明显低于数字副载波调制系统。
- In the new method, the spectrum measured value was firstly normalized to eliminate the intensity modulation, and an initial value of Optical Path Difference (OPD) was calculated by extremum method. 该方法首先对干涉谱测量值进行归一化处理，消除低频光强变化的影响，并用极值法求得光程差(OPD)的初值。
- Study on the Fourier Transform Demodulation Theory of the Spectropolarimeter Based on Intensity Modulation[J]. 引用该论文 宋志平;洪津;乔延利;裘桢炜;叶松;陈立刚;汪元钧.
- Experimental data show that the intensity modulation depth increases with the bias current of LD.When the modulation frequency increases,the intensity modulation depth decreases. 实验数据表明，光强调制度随激光器偏置电流的增加而加深，随调制频率的升高而减小。
- 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。
- This type of collimator can replace and simplify all other present collimators on accelerators and conformal intensity modulation radiotherapy equipments. 降低了放疗设备的成本,使适形调强设备,为加速器提供了一种全新的准直器。
- This paper introduces simply the principle of automatically adjustable optical intensity system using iris diaphragm ,and analyses the stabilization of the whole control system in detail. 简要介绍了一种采用可变光阑的自动调光系统的工作原理，并对整个控制系统的稳定性进行了详细分析。
- The light beam intensity modulation for writing the grating on a fiber is performed by the amplitude mask with Moire pattern. And the LPG(Long Period Grating)is fabricated in chalcogenide fiber with period of 365nm. 这种方法是采用莫尔条纹构成模板实现对写入光强的振幅调制 ,在硫化物光纤中写入周期为 36 5nm的长周期光栅。
- 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。
- Since the nano/micro-technique and clinical radiotherapy were combined together,magnetically controlled targeted radiotherapy could meet the need of intensity modulation radiation therapy. 磁靶向放射治疗技术将纳微米技术和临床放疗技术有机地结合起来,可以满足适形调强的放射治疗要求。
- An acoustooptic modulation system based on com- puter control for laser in the device was raised and realized,which takes one acoustooptic modulator for optic power steady,optic intension and pulse modulation. 论述了该装置所使用的激光声光调制系统，提出并实现了基于计算机控制的，采用单一声光调制器在该装置上进行光功率稳定、光强控制及光脉冲控制的系统，给出了一种有效的数字滤波算法。
- Positioning and position repeatability in intensity modulation radiotherapy(IMRT)were reviewed in this article.Some aspects should be paid attention to before and after positioning. 该文对适形调强放疗中的摆位及体位重复性问题进行了论述,提出了投照摆位前后应注意的问题。
- Objective To study and develop treatment planning system of intensity modulated radiotherapy(IMRT). 摘要目的研制开发调强放射治疗逆向计划系统。
- A scattering proton beam delivery system for conformal therapy and intensity modulated therapy is described. 描述一个适用于适形治疗和调强治疗的散射式质子束流配送系统。
- Intensity modulated radiation therapy means achieving form conformity and dose conformity by altering intensity distribution of pencil section. 通过改变射束剖面强度分布,达到形状适形和剂量适形,叫做调强适形放疗技术。
