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ld温度
相关语句
  ld temperature
     Based on the MCS-51 micro-controller,a laser diode(LD) temperature control system has been designed and developed,which adopts platinum and thermo-electric cooler as temperature sensor and execute device of temperature control respectively,and it makes use of a control algorithm combining the fuzzy theory and adaptive adjustment of digital PID parameters to control the LD temperature.
     设计了一种基于MCS-51系列微控制器的激光二极管(LD)温度控制系统,该系统分别采用铂电阻及半导体制冷器作为温度传感器和控温执行元件,并应用模糊理论与数字PID参数自适应调整相结合的控制算法对LD温度进行控制。
短句来源
     The laser diode temperature control instrumen is developed on microcontroller system in series of MCS-51. Because of the uncertainty of mathematical model of the LD temperature (the LD temperature changes with the input current of LD), and the accuracy of the temperature control system is as high as 0.2℃, the traditional control method is difficult to obtain such an accuracy.
     由于LD温度数学模型的不确定性(LD温度随注入LD的电流大小的改变而改变),而且系统控温精度要求比较高(0. 2℃),传统的控温方法难以实现。
短句来源
     A LD temperature data acquisition and analysis system is introduced in this paper.
     设计了一种LD温度数据采集与分析系统。
短句来源
  “ld温度”译为未确定词的双语例句
     Continuously frequency adjustable laser is realized in a certain temperature range,whose current stability is less than 2mA,lasting temperature fluctuation is below 0.1℃.
     实验结果表明,实现LD驱动电流的稳定度优于2mA,LD温度长期波动小于0.1℃,激光输出的频率在一定温度范围内连续可调。
短句来源
     In addition, a temperature data collecting and analyzing system is designed. In the first place, the system samples temperature control data at10Hz sampling frequency, then it saves, analyses and processes the experimental data, and the system respond figure can be obained.
     另外,还设计了LD温度数据采集与分析系统,西安理工大学硕士学位论文该系统首先以IOHz的采样频率采集温控数据,然后对数据进行保存、分析及处理,得到系统响应图形。
短句来源
     The temperture of crystal and LD is real -time sampled and processed,and this system could make semiconductor laser work on its best temperature point . The output power variety and output wavelength shift of semiconductor laser caused by temperature unstability can be eliminated.
     该系统通过对激光器中晶体和LD温度的实时采集和控制,使激光器工作于最佳温度点,从而减小了因温度的不稳定而造成的半导体激光器输出功率不稳定、输出波长发生漂移等不良影响。
短句来源
     In the temperature controller module, the temperature could be controlled precisely with PI control method and the thought of integral separation.
     LD温度控制单元中,采用了比例积分(PI)控制技术并结合积分分离的思想,实现对LD温度的高稳定度的控制。
短句来源
  相似匹配句对
     T is temperature, ℃.
     T为温度,℃。
短句来源
     STUDY ON TEMPERATURE CONTROL DURING SEMI-STEEL STEELMAKING IN LD CONVERTERS
     LD转炉半钢炼钢的温度问题探讨
短句来源
     T-temperature, K;
     T—溶液温度,K;
短句来源
     Measurement for Frequency Response of DFB-LD under Different Temperatures
     DFB-LD在不同温度下的频响测量
短句来源
     LD the laser illumination
     LD激光照明
短句来源
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  ld temperature
Shaded area reveals the SNR variation according to the LD temperature.
      
To prevent this deviation, optical output is disabled by CPU until LD temperature is stabilized.
      
This is because it takes some time for the LD temperature to reach the target value at the start-up.
      


A practical temperature control device for LD has been studied. It is consisted of a high precision wide range temperature sensor, a semiconductor refrigerator with two way control and an automatic temperature control circuit. Multifunction intelligent control is realized by single chip microcomputer. The device is also able to carry out real time temperature measurement. The experimental results show that the device can well guarantee the working environment of LD.

研究了一个实用化的LD温度控制装置,利用高精度宽温温度传感器、双向控制的半导体致冷器及自动温控电路,通过单片机实行多功能智能化控制.该装置兼有实时温度检测功能,实验结果表明装置能很好地保证LD的工作环境.

The single-frequency operation of a LD end-pumped laser is realized by means of multi-cavities and a Brewster plate.The LD-pumped single-frequency green laser has been demonstrated by optimizing several parameters and cavity length,with precise temperature controlling of the Nd:YVO_4,KTP and laser diode.When the incident pump power is 500 mW at 808 nm,38 mW single-frequency CW green laser at 532 nm is obtained,with the optical-to-optical conversion effciency of up to 7.6 % .

采用复合腔与布氏片相结合的方式实现单纵模的有效选取 ,LD采用紧贴式端面泵浦 ,通过精密调控Nd :YVO4 、KTP及泵浦源LD的温度以达到有关参数的最佳匹配 ,从而实现了稳定的单频绿光输出。在抽运功率为 5 0 0mW时 ,获得 38mW的单频连续稳定运转的 5 32nm的绿光输出 ,其光 -光转换效率为 7.6 %。

In the experiment,we adjust LD’s wavelength by control of temperature and analyze the characteristics of fiber laser. The fiber laser in this experiment is composed of a high-power LD pumped with output wavelength of 970nm and a double-clad fiber spliced fiber Bragg gratings (FBGs) at both ends. Experimentally through a taper fiber,we have realized 5.1W of output power at 1100nm,with the highest conversion efficiency of 63%.

通过对泵浦源LD的温度控制 ,研究了不同温度对泵浦源波长以及光纤激光器输出特性的影响。利用熔接在掺镱双包层光纤两端的光纤光栅作为光纤激光器的谐振腔 ,采用锥度光纤耦合的方法实现了 5 .1W的单模激光输出 ,输出波长 110 0nm ,最大转换效率 6 3%。

 
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