A grating spectrum detecting system was designed to detect the formaldehyde concentration effectively and quickly.
为了对甲醛的浓度进行快速而有效的检测，设计了一套光栅式光谱检测系统。
A lot of grating messages including its profile can be derived from diffraction spectrum of grating according to Fourier optical theory.
根据傅立叶光学理论从光栅的衍射频谱中可以反推光栅本身的多种信息，包括其形貌特征。
It was found that the transmission spectrum of the filter is the cosine function modulated reflection spectrum of the fiber grating.
结果表明该滤波器的透射光谱是余弦函数调制后的光纤光栅反射光谱。
The fabrication, spectrum characterization, and temperature performance of this grating are introduced.
本文介绍了这种光栅设计、制造、光谱特性和高温性能。
Methods:Use the Grating Spectrograph to take photograph of atomic emission spectrum of unknown sample and make quantitative analysis Results:Quantitative determination of trace elements in nutriment.
方法：用平面光栅摄谱仪拍摄未知样品之原子发射光谱图，并作定量分析。结果：测定营养品中微量元素的含量。
The transmission spectrum of a novel long period fiber grating written with the high frequency CO2 laser pulses is theoretical analyzed.
对采用高频CO2激光脉冲写入的新型长周期光纤光栅的透射谱进行了理论分析。
We prepared broadband source of transducer system in fiber grating by analyzing characteristics of amplification spontaneous radiation spectrum and LD drive in erbium doped fiber.
通过对掺铒光纤放大自发辐射谱特性和LD驱动电路的分析，最终研制出用于光纤光栅传感系统的宽带光源。
Hyperfine spectrum; Nonlinear optics; Degenerate four waves mixing; The equivalent grating; Isotope detecting.
超精细光谱；非线性光学；简并四波混频技术；等效光栅；同位素检测。
Using transfer matrix method we make numerical analyses for the reflective spectrum of sampled grating and get the rules how grating's parameters influence the reflective spectrum.
用传输矩阵法对取样光栅的反射谱特性进行数值模拟分析，得到光栅各参数的变化对取样光栅反射谱特性的影响规律。
This paper quantitatively compares the spectrum characteristics between Fabry-Perot interferometer with gain medium and diffraction grating spectrometer.
对加入增益介质的F - P干涉仪的光谱特性与衍射光栅光谱仪的光谱特性作了定量对比。
In the spectrum bandwidth and cost aspect, Spectrometers with prisms and grating are equivalent.
在光谱带宽和成本方面，棱镜光谱仪与光栅光谱仪基本接近。
The spectrum of fiber Bragg grating(FBG) in inhomogeneous strain fields is distorted due to its inhomogeneity of both the periods and the effective refractive index.
当非均匀应变场作用在光纤布拉格光栅（FBG）上时，由于FBG周期和有效折射率在沿FBG长度方向都为变量，所以会导致光谱形状的变化。
Based on the lateral Moire fringe of the gratings, the change of Moire fringe was researched by using Fourier spectrum while the frequency of a grating was changed.
用傅里叶频谱分析方法研究了横向莫尔条纹中一个光栅倍频时莫尔条纹的变化。
A method to analyze the resonant wavelength and damping decrement of the transmission spectrum of long period fiber grating (LPFG) with bending curvature was reported.
报道了一种分析长周期光纤光栅(LPFG)透射谱谐振波长和衰减率随弯曲曲率变化的方法。
A special tilted fiber grating based sensor is also developed, and its special manufacture technology, special spectrum and special sensing applications are discussed.
还具体介绍了一类特殊的倾斜光纤光栅，介绍了它的特殊制备工艺，特殊的频谱特性，以及它的独特的传感应用。
The Angle spectrum analysis of self-image of double frequency grating is given. The grating duplication and the measurement of lens focus are obtained by Tablot effect of holographic phase grating.
本文给出了双频光栅自成象的角谱分析，并利用位相型的全息双频光栅的太保效应来进行复制光栅和测定透镜焦距等。
A new method for determining the grating parameters with the transmission spectrum and the optimized algorithm is described.
提出了利用透射光谱结合优化算法来反演衍射光栅参量的新方法。
When wave length scanning is carried out, three output white light interference spectrums of the interferometer and a transmission spectrum of the etalon and the fiber grating are probed.
扫描波长时，探测干涉仪的三路输出白光干涉光谱，以及标准具和光纤光栅的透射谱。
The CCD detector was used to take place of the photomultiplier which was widely used as the optical-electrical converter, and the fast analysis of the spectrum was realized by incorporating a grating.
用CCD检测仪取代了常用的光电转换器件——光电倍增管，通过与光栅结合实现了光谱的快速分析。
Secondly, from the new dispersion relation we get the gain spectrum for modulation instability in nonlinearity management fiber Bragg grating, and we compared it with normal nonlinear fiber grating.
第二，根据得出的色散关系式，将非线性管理光纤光栅的增益谱特性与常规光栅进行了比较。
In order to achieve flat multi-wavelength output, a long-period fiber grating with loss peak at 1530 nm is used to obtain flat gain spectrum.
为了获得平坦的多波长输出，在谐振腔里使用了一个损耗峰位于1530nm处的长周期光纤光栅，以获得较为平坦的增益谱。
The spectrum of ASE broadband light source was measured by FFTS system, and the experiment result agrees with that tested by grating spectrometer.
利用该FFTS系统测量了ASE宽带光源的光谱，并将测量结果和光栅光谱仪测量结果进行了对比，结果表明两者所测ase光谱线型一致。
After the excitation scheme of suitable ultraviolet material is selected, the ultraviolet spectrum is measured with the dual-grating monochromator and ultraviolet sensor.
在选用合适的紫外材料激发后，采用双光栅单色仪和紫外传感器进行测量。
After the excitation scheme of suitable ultraviolet material is selected, the ultraviolet spectrum is measured with the dual-grating monochromator and ultraviolet sensor.
在选用合适的紫外材料激发后，采用双光栅单色仪和紫外传感器进行测量。
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