效率测量

From the view of increasing diffraction efficiency, the interaction between Gaussian beam and acoustic wave is experimentally studied.

实验测量了调制频率变化对声光调制器衍射效率的影响，并用波矢量匹配的概念对测量结果进行了分析。

Carry on lead transfer through the diagonal line method , not only solved basically impersonal condition limit of the traditional triangle connection survey the method request, but also enhanced the engineering lead accuracy and measure the work efficiency.

通过斜线法进行导线传递，不仅从根本解决了传统三角联系测量方法所要求之客观条件的局限性，同时大大提高工程指导精度和测量工作效率。

The first-order diffraction efficiency of the grating was measured using a 532 nm laser,the highest of which was 6.98%.

用波长为532 nm的激光照射光栅，测量其一级衍射效率，测得的衍射效率最高为6.98%。

Through this experiment,it was measured that average diameter of the fundamental frequency light is 2.33 mm in the pattern of ordinary krypton pump,while in he pattern of the laster- diode bar pump the average diameter is only 1.25 mm,and the light field of the later also took on the standard Gaussian distribution,therefore formed the high-bright...

通过实验测量到普通氪灯泵浦方式中基频光的平均直径为2.33 mm，LD 阵列对称泵浦方式中基频光的平均直径仅为1.22 mm，并且呈现标准的高斯分布，形成了高亮度激光输出。实验研究了 Nd：YAG 调 Q 固体激光器的重复频率对 KTP 倍频晶体转换效率的影响。并且，在基频光平均功率11.2 w时，经 KTP 晶体倍频产生5.11W 的532 nm 绿光输出，光-光转换效率达到45.6%。

Firstly, we used the Raman scattering method which can calibrate in real time to measure the O2 (a1 Δ) yield of SOG for the first time in China. The measurement relative error is less than 8%. Based on the data from the experiments, we report the results that the diluent category and ratios influence the O2 (a1 Δ) yield. The relationship of P-τ values and the O2 (a1 Δ) yield of this SOG were given. The effects of distance and bypass of gas transportation on the O2 (a1 Δ) yield are investigated. Secondly, the chlorine utilization was measured by using Raman spectroscopy simultaneously when the O2 (a1 Δ) yield was measured. This method originated with us. The result about the chlorine utilization is coincident with other theoretic and experimental conclusions. The relationship given in this paper between gas stay time in SOG and chlorine utilization offers reference to improve the reaction efficiency and chemical efficiency of COIL. Finally, the partial water vapor pressure at the exit of SOG was measured by absorption spectroscopy. The water vapor fraction and partial pressure have trends changed with the generator total pressure, the diluentratios, and the BHP temperature. These experimental results are very important to improve experimental conditions of SOG, reduce the water vapor fraction, and enhance the output power of COIL.

由侧得的数据得到了加入稀释气体、稀释气体种类以及稀释比例对单重态氧产率的影响，给出了该发生器P一：值与仇产率的关系，还考察了传输距离对仇产率的影响；在国际上首创利用喇曼散射光谱法在侧量产率的同时进行了氯气利用率的检侧，侧试结果与其他理论及实验结果十分相近；给出了气体在发生器中的滞留时间与氯气利用率之间的关系，该结果为提高氧碘化学激光器的反应效率和化学效率提供了参考依据；另外采用了吸收光谱法对发生器出口处的水汽含量进行了测量、得到了水汽分压和百分含量随着发生器压力、稀释气体比例以及BHP温度等的变化情况，该实验结果对于改进发生器工作条件、减少水汽含量、提高氧碘化学激光器的出光功率具有十分重要的指导意义。

It includes high power high voltage constant-current-charging system, capacitors bank, discharge control system, power supply of preignition for Xe-flashlamps, general control and diagnostic system. The power conditioning system drives flashlamps that pump the SSHCL. Flashlamps are driven by high voltage Silicon Controlled Rectifiers switched, resonant charged, discharge pulse forming network. The system uses microchip and digital circle which is based on CAN-bus for control and diagnostics. Energy diagnosis and thermal management are controlled by computers.

其中大功率高压恒流充电装置采用了L-C串联谐振电路，充电功率大，效率较高；储能装置采用了多节脉冲成形网络，可产生波形良好的强电流放电脉冲；放电控制装置采用高压大功率晶闸管，开关速度快，工作稳定；预燃与触发装置采用了开关电源电路，效率高、功耗小；总控与测量装置采用基于CAN总线的数字电路和单片机技术，控制冷却系统在激光器出光时对脉冲氙灯进行水冷，并对全系统进行控制和状态检测，同时具有过压、过流、过热等保护功能。

A combined fairness measure and system spectral efficiency measure is the fairly shared spectral efficiency .

恰当的方法和系统频谱效率的测量的结合可以得到更确切的频谱效率。

The current and brightness characteristics of the devices are tested and the electroluminescent spectra are described.

在测量器件的电流－电压特性、发光亮度－电压特性和电致发光谱的基础上，计算了器件的外量子效率，研究了磷光材料的掺杂浓度对器件发光效率的影响。

The generation of blue light through direct frequency doubling of 860nm has been achieved in our two typical samples. Sample A and sample B have the number of domain laminas of 460 and 290 respectively, and the SHG efficiency are 4.2% and 3.5% in the two samples.

通过在不同的晶体偏角下进行基波波长扫描的倍频效率的测量，给出光学超晶格样品的&允许偏角&，超过这个角度，非线性倍频转换效率急剧下降。

At the present,the detectors normally applied in the regions are NaI detectors and HPGe detectors,but the new HPXe ionization chamber and LaCl3 doped Ce scintillators detectors will provide a new valid approach.

在常规的核材料鉴别测量方法中，NaI闪烁探测器具有好的探测效率，但其能量分辨本领差，常用于剂量率测量，源搜索，在特定条件下亦可做定量测量；HPGe探测器的能量分

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。